37 - Construction and mining; installation and repair services
39 - Transport, packaging, storage and travel services
40 - Treatment of materials; recycling, air and water treatment,
Goods & Services
Apparatus, devices and installations (fixed or mobile) for
treating slurry, industrial effluents, anaerobic digestion
feedstocks and digestates. Construction, commissioning, rental and maintenance services
for apparatus, devices and installations (fixed or mobile)
for treating slurry, industrial, wine-making or agricultural
effluents, anaerobic digestion feedstocks and digestates;
repair services for apparatus, devices and installations
(fixed or mobile) for treating slurry, industrial effluents,
anaerobic digestion feedstocks and digestates. On-site provision and rental services for mobile equipment
or units for treating slurry, industrial, wine-making or
agricultural effluents, digester slurry and feedstocks and
digestates; logistics for deploying containerized or mobile
installations for treating slurry, industrial effluents,
anaerobic digestion feedstocks and digestates. Treatment of slurry, industrial effluents, anaerobic
digestion feedstocks and digestates; rental of apparatus,
devices and installations (fixed or mobile) for treating
slurry, industrial, wine-making or agricultural effluents,
anaerobic digestion feedstocks and digestates; rental
services for mobile equipment or units for treating slurry,
industrial, wine-making or agricultural effluents, digester
slurry and feedstocks and digestates; operation of
apparatus, devices and installations (fixed or mobile) for
treating slurry, industrial effluents, anaerobic digestion
feedstocks and digestates.
37 - Construction and mining; installation and repair services
39 - Transport, packaging, storage and travel services
40 - Treatment of materials; recycling, air and water treatment,
Goods & Services
Apparatus, devices and installations (fixed or mobile) for treating slurry, industrial effluents, anaerobic digestion feedstocks and digestates. Construction, commissioning, rental and maintenance services for apparatus, devices and installations (fixed or mobile) for treating slurry, industrial, wine-making or agricultural effluents, anaerobic digestion feedstocks and digestates; repair services for apparatus, devices and installations (fixed or mobile) for treating slurry, industrial effluents, anaerobic digestion feedstocks and digestates. On-site provision and rental services for mobile equipment or units for treating slurry, industrial, wine-making or agricultural effluents, digester slurry and feedstocks and digestates; logistics for deploying containerized or mobile installations for treating slurry, industrial effluents, anaerobic digestion feedstocks and digestates. Treatment of slurry, industrial effluents, anaerobic digestion feedstocks and digestates; rental of apparatus, devices and installations (fixed or mobile) for treating slurry, industrial, wine-making or agricultural effluents, anaerobic digestion feedstocks and digestates; rental services for mobile equipment or units for treating slurry, industrial, wine-making or agricultural effluents, digester slurry and feedstocks and digestates; operation of apparatus, devices and installations (fixed or mobile) for treating slurry, industrial effluents, anaerobic digestion feedstocks and digestates.
37 - Construction and mining; installation and repair services
39 - Transport, packaging, storage and travel services
40 - Treatment of materials; recycling, air and water treatment,
Goods & Services
(1) Appareils, dispositifs et installations (fixes ou mobiles) de traitement des boues, effluents industriels, intrants de méthanisation et digestats. (1) Services de construction, de mise en service, de location et de maintenance d'appareils, dispositifs et installations (fixes ou mobiles) de traitement des boues, des effluents industriels, vinicoles ou agricoles, d'intrants de méthanisation et digestats; services de réparation d'appareils, dispositifs et installations (fixes ou mobiles) de traitement des boues, effluents, intrants de méthanisation et digestats.
(2) Services de mise à disposition sur site et de location de matériels ou d'unités mobiles de traitement des boues, des effluents industriels, vinicoles ou agricoles, des boues, d'intrants de digesteurs et digestats; logistique de déploiement d'installations containerisées ou mobiles de traitement des boues, effluents industriels, intrants de méthanisation et digestats.
(3) Services de traitement des boues, effluents industriels, intrants de méthanisation et digestats; services de location d'appareils, dispositifs et installations (fixes ou mobiles) de traitement des boues, des effluents industriels, vinicoles ou agricoles, d'intrants de méthanisation et digestats; services de location de matériels ou d'unités mobiles de traitement des boues, des effluents industriels, vinicoles ou agricoles, des boues, d'intrants de digesteurs et digestats; services d'exploitation d'appareils, dispositifs et installations (fixes ou mobiles) de traitement des boues, effluents, intrants de méthanisation et digestats.
37 - Construction and mining; installation and repair services
39 - Transport, packaging, storage and travel services
40 - Treatment of materials; recycling, air and water treatment,
Goods & Services
Apparatus, devices and installations (fixed or mobile) for the treatment of sludge, industrial effluents, methanisation inputs and digestates. Construction, commissioning and maintenance services for apparatus, devices and installations (fixed or mobile) for the treatment of sludge, industrial, viticultural or agricultural effluents, methanisation inputs and digestates; Technical services relating to the operation of such apparatus, devices and installations (fixed or mobile); Technical assistance and supervision (maintenance and repair) relating to the operation of apparatus, devices and installations (fixed or mobile) for the treatment of sludge, effluents, methanisation inputs and digestates. Logistics for the deployment of containerised or mobile facilities for the treatment of sludge, industrial effluents, methanisation inputs and digestates. Treatment of mud, Industrial effluent treatment, Treatment of methanisation inputs and digestates; Rental of the following goods: Apparatus, devices and installations (fixed or mobile) for the treatment of sludge, industrial, viticultural or agricultural effluents, methanisation inputs and digestates; On-site provision and rental of equipment or units (fixed or mobile) for the treatment of sludge, industrial, viticultural or agricultural effluents, sludge, digester inputs and digestates.
The invention relates to a method and a device for anaerobic digestion from an organic liquid sludge (21), comprising, in a known manner, a step of hydrolysis/acidogenesis of the sludge in a digester (47, 100), a step of acetogenesis for producing acetate from the hydrolysed sludge and a step of methanogenesis from the acetates for producing methane. The method comprises an initial step of creating a hydrolysed sludge emulsion (23) obtained by means of the impact of the sludge with gas (27) injected into the sludge, then continuously supplying the hydrolysed sludge to a reactor (25, 101) pressurised in line relative to the digester, before discharging said sludge from the reactor via a member (29) generating a pressure drop in the hydrolysed sludge, the initial stage being repeated at least once before supplying the, and/or via the, digester.
C02F 9/00 - Multistage treatment of water, waste water or sewage
B01F 23/2326 - Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids using flow-mixing means for introducing the gases, e.g. baffles adding the flowing main component by suction means, e.g. using an ejector
B01F 25/312 - Injector mixers in conduits or tubes through which the main component flows with Venturi elementsDetails thereof
B01F 101/00 - Mixing characterised by the nature of the mixed materials or by the application field
C02F 1/20 - Treatment of water, waste water, or sewage by degassing, i.e. liberation of dissolved gases
C02F 1/24 - Treatment of water, waste water, or sewage by flotation
The invention relates to a method and a device for improving the biodegradability of an organic sludge. It comprises at least two treatment cycles each of a total duration of between around 8 s and around 20 s and each comprising a first step of producing a first hydrolysed sludge emulsion in a first, reduced zone, by injecting a gas into said reduced zone. a second step of abruptly expanding the emulsion in a second zone—the expansion zone—and a third step of recovering the emulsion via a third, restriction zone.
B01F 25/312 - Injector mixers in conduits or tubes through which the main component flows with Venturi elementsDetails thereof
B01F 23/232 - Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids using flow-mixing means for introducing the gases, e.g. baffles
B01F 25/51 - Circulation mixers, e.g. wherein at least part of the mixture is discharged from and reintroduced into a receptacle in which the mixture is circulated through a set of tubes, e.g. with gradual introduction of a component into the circulating flow
7.
Treatment method and device for dehydration of organic sludges
The invention relates to a method and a device for continuously or semi-continuously treating/dehydrating organic sludge (1, 41, 69}, wherein a three-phase emulsion of air, solid matter and water is produced by injecting air (6, 47, 68) into the sludge, introducing a flocculant (13, 50, F) into said emulsion in order to create a floc (14, 51) and then degassing said floc at atmospheric pressure. The floc is degassed by soft impact of the floc on itself or on an energy absorbing shutter (39, C), braking the floc, and the floc matured in this way is recovered in a filtration and/or decanting device (56, 74).
The invention relates to a method and a device for anaerobic digestion from an organic liquid sludge (21), comprising, in a known manner, a step of hydrolysis/acidogenesis of the sludge in a digester (47, 100), a step of acetogenesis for producing acetate from the hydrolysed sludge and a step of methanogenesis from the acetates for producing methane. The method comprises an initial step of creating a hydrolysed sludge emulsion (23) obtained by means of the impact of the sludge with gas (27) injected into the sludge, then continuously supplying the hydrolysed sludge to a reactor (25, 101) pressurised in line relative to the digester, before discharging said sludge from the reactor via a member (29) generating a pressure drop in the hydrolysed sludge, the initial stage being repeated at least once before supplying the, and/or via the, digester.
The invention relates to a method and a device for anaerobic digestion from an organic liquid sludge (21), comprising, in a known manner, a step of hydrolysis/acidogenesis of the sludge in a digester (47, 100), a step of acetogenesis for producing acetate from the hydrolysed sludge and a step of methanogenesis from the acetates for producing methane. The method comprises an initial step of creating a hydrolysed sludge emulsion (23) obtained by means of the impact of the sludge with gas (27) injected into the sludge, then continuously supplying the hydrolysed sludge to a reactor (25, 101) pressurised in line relative to the digester, before discharging said sludge from the reactor via a member (29) generating a pressure drop in the hydrolysed sludge, the initial stage being repeated at least once before supplying the, and/or via the, digester.
The invention relates to a method and a device for improving the biodegradability of an organic sludge. It comprises at least two treatment cycles each of a total duration of between around 8 s and around 20 s and each comprising a first step of producing a first hydrolysed sludge emulsion in a first, reduced zone, by injecting a gas into said reduced zone, a second step of abruptly expanding the emulsion in a second zone - the expansion zone - and a third step of recovering the emulsion via a third, restriction zone.
The invention relates to a method and a device for continuously or semi-continuously treating/dehydrating organic sludge (1, 41, 69}, wherein a three-phase emulsion of air, solid matter and water is produced by injecting air (6, 47, 68) into the sludge, introducing a flocculant (13, 50, F) into said emulsion in order to create a floc (14, 51) and then degassing said floc at atmospheric pressure. The floc is degassed by soft impact of the floc on itself or on an energy absorbing shutter (39, C), braking the floc, and the floc matured in this way is recovered in a filtration and/or decanting device (56, 74).
37 - Construction and mining; installation and repair services
40 - Treatment of materials; recycling, air and water treatment,
Goods & Services
Apparatus, devices and installations (compact mobile or
fixed) for sludge drying and thickening. Repair and maintenance of apparatus, devices and
installations (fixed or compact mobile) for sludge drying
and thickening. Sludge drying and thickening treatment services; sludge
emulsion treatment services by flocculation, dehydration and
thickening.
14.
Method and device for purifying domestic or industrial water
A method and a device for the continuous purification of a domestic or industrial water stream. After passing through a biological reactor to obtain a sludge of between 4 and 12 g/l of Dry Solids, the method involves feeding a series of chambers separated by restrictions at a flow rate q, injecting air into a second chamber at a flow rate Q>q, in order to obtain an emulsion, injecting a flocculant into a third chamber, and recovering the degassed emulsion in a drain pan. Flocculated and aerated sludge floats on top, such that the remaining liquid centrate has a Dry Solids content less than 100 mg/l and has a positive redox potential >50 mV and a value greater than 100 mV relative to the redox potential of the sludge at the inlet of the chambers, and is reinjected upstream from or into the biological reactor.
40 - Treatment of materials; recycling, air and water treatment,
11 - Environmental control apparatus
37 - Construction and mining; installation and repair services
Goods & Services
[ Sludge treatment services involving sludge drying and sludge thickening; Sludge treatment services involving the treatment of sludge emulsion by flocculation, dehydration and thickening ] Sludge treatment units for sludge dewatering, drying and thickening [ Repair and maintenance of sludge treatment units for sludge dewatering, drying and thickening ]
16.
Method and device for treating liquid sludge and filter cakes obtained by said method
Treating and conditioning liquid sludge and a solidified sludge cake obtained thereby are disclosed. A first emulsion of sludge is formed in an in-line container fed at a first flow rate Q owing to the impact of the sludge with air injected into the container at a rate Q′, where Q′>5Q, in a first region which has a small volume of less than 0.05 m3. The first emulsion is then transferred into a second region of the container extending over a first length, and is then discharged via a component which generates a head loss in a chamber extending over a second length. A flocculant is injected in order to obtain a second coagulated emulsion, which is at least partially degasified. The matter in suspension in the second emulsion obtained in this way is then filtered or decanted.
The continuous treatment of a flow of organic liquid sludge is disclosed. Following the optional addition of granular mineral matter to the flow, the sludge is injected at a rate q into a column of air which is at overpressure relative to atmospheric pressure. The air column is circulating at a rate Q>5q in a chamber extending over a specific length in order to create a fluidized bed, in which the sludge is aerolized, between air supply piping upstream of the sludge injection and an outlet reservoir downstream of the fluidized bed, the reservoir being substantially at atmospheric pressure. A flocculant is introduced continuously downstream of the chamber into the fluidized bed in order to aggregate the organic matter before the solid part obtained in this way is separated from the liquid part, the resulting solid part thus being deodorized.
Treating an organic effluent is disclosed. The effluent is fed in a continuous flow at a rate q via a first chamber maintained at a first pressure and/or directly through a first narrowing to a second chamber or container maintained at a second medium pressure by the injection of air into the second chamber at a rate Q in order to obtain an emulsion in the second chamber. A head loss is generated in the emulsion optionally modified by a second and/or third narrowing or a feed valve for a third chamber maintained at a third pressure in the region immediately downstream of the second or third narrowing and/or valve. A flocculant is injected into the region of the third chamber. The emulsion at atmospheric pressure then being degasified and the emulsion thus degasified being recovered in a filtration or decanting device.
The present invention concerns a method and a device for the continuous purification of a domestic or industrial water stream. After passing through a biological reactor making it possible to obtain a sludge comprising between 4 and 12 g/l of Dry Solids (MS), the method involves feeding a series of chambers separated by restrictions at a flow rate q, injecting air into a second chamber at a flow rate Q > q, in order to obtain an emulsion, injecting a flocculant into a third chamber, and recovering the degassed emulsion in a drain pan. The flocculated and aerated sludge floats in the top part of the pan, such that the remaining liquid centrate has a Dry Solids content of less than 100 mg/l and has a positive redox potential > 50 mV and a value greater than 100 mV relative to the redox potential of the sludge at the inlet of the chambers, and is reinjected upstream from or into the biological reactor.
The invention concerns a method and a device (1) for treating and conditioning liquid sludge (2), and a solidified sludge cake obtained by said method, wherein a first emulsion (14) of sludge is formed in an in-line container (5, 6) fed at a first flow rate Q (m3/h), owing to the impact of the sludge with air (13) injected into the container at a rate Q'(Nm3/h), where Q' > 5Q, in a first region (8) which has a small volume of less than 0. 05 m3, in order to produce the first emulsion (14), which is then transferred into a second region (16) of the container extending over a first specific length L1, and is then discharged via a component which generates a head loss (18) in a chamber (19) extending over a second specific length L2. At least one flocculant (22) is injected, in order to obtain a second, coagulated, emulsion (23), which is at least partially degasified. The matter in suspension in the second emulsion (23) obtained in this way is then filtered or decanted.
The invention concerns a method and a device for treating an organic effluent (2, 31). The effluent is fed in a continuous flow at a rate q (m3/h), via a first chamber (5) maintained at a first specific pressure (P1), and/or directly through a first narrowing (7), to a second chamber or container (10, 33, 55) maintained at a second medium specific pressure (P2; P'; P1''; P2'') by the injection of air (11, 31, 54) into said second chamber at a rate Q (Nm3/h), in order to obtain an emulsion (13, 57) in the second chamber, a specific head loss is generated in the emulsion optionally modified by a second and/or third narrowing or a feed valve (61) for a third chamber (22, 39, 62) maintained at a third specific pressure (P3; P'; P3 '') in the region (79) immediately downstream of the second or third narrowing and/or valve (61), and a flocculant (24, 45, 78) is injected into the region of the third chamber, the emulsion at atmospheric pressure then being degasified and the emulsion thus degasified being recovered in a filtration or decanting device.
The invention concerns a method and a device (1) for treating and conditioning liquid sludge (2), and a solidified sludge cake obtained by said method, wherein a first emulsion (14) of sludge is formed in an in-line container (5, 6) fed at a first flow rate Q (m3/h), owing to the impact of the sludge with air (13) injected into the container at a rate Q'(Nm3/h), where Q' > 5Q, in a first region (8) which has a small volume of less than 0. 05 m3, in order to produce the first emulsion (14), which is then transferred into a second region (16) of the container extending over a first specific length L1, and is then discharged via a component which generates a head loss (18) in a chamber (19) extending over a second specific length L2. At least one flocculant (22) is injected, in order to obtain a second, coagulated, emulsion (23), which is at least partially degasified. The matter in suspension in the second emulsion (23) obtained in this way is then filtered or decanted.
The invention concerns a method and a device for treating an organic effluent (2, 31). The effluent is fed in a continuous flow at a rate q (m3/h), via a first chamber (5) maintained at a first specific pressure (P1), and/or directly through a first narrowing (7), to a second chamber or container (10, 33, 55) maintained at a second medium specific pressure (P2; P'; P1''; P2'') by the injection of air (11, 31, 54) into said second chamber at a rate Q (Nm3/h), in order to obtain an emulsion (13, 57) in the second chamber, a specific head loss is generated in the emulsion optionally modified by a second and/or third narrowing or a feed valve (61) for a third chamber (22, 39, 62) maintained at a third specific pressure (P3; P'; P3 '') in the region (79) immediately downstream of the second or third narrowing and/or valve (61), and a flocculant (24, 45, 78) is injected into the region of the third chamber, the emulsion at atmospheric pressure then being degasified and the emulsion thus degasified being recovered in a filtration or decanting device.
The invention concerns a method and device for the continuous treatment of a flow of organic liquid sludge. Following the optional addition of granular mineral matter to the flow, the sludge (5) is injected at a rate q into a column of air which is at overpressure relative to atmospheric pressure, the air column circulating at a rate Q > 5q in a chamber (2, 4) extending over a specific length L along a longitudinal axis (3), in order to create a fluidized bed, in which the sludge is aerolized, between air supply piping upstream of the sludge injection and an outlet reservoir or duct downstream of the resulting fluidized bed, the duct or reservoir being at atmospheric pressure or substantially at atmospheric pressure, and a flocculant (21) is introduced continuously downstream of the chamber into the fluidized bed in order to aggregate the organic matter before the solid part obtained in this way is separated from the liquid part, the resulting solid part thus being deodorized.
1 ABSTRACT The present invention concerns a method and device for recovering hydrocarbons from a sludge. The flow being formed from at least two partial flows, a quantity of salt predetermined by volume of treated sludge is added to these flows continuously or in batches, the two flows are projected onto one another in a closed chamber having a small volume, simultaneously injecting air at a flow rate d, a mixture of foam, water and suspended matter is recovered in the upper portion of the chamber, the mixture is then left to settle to separate, by decantation, the suspended matter and the supernatant foam created in this way, loaded with hydrocarbons, and the foam is recovered by liquefying it with an additive, to obtain a supernatant of concentrated hydrocarbons separated from the liquid and from the solid matter by continuously withdrawing the liquid portion. Figure 1
C10G 1/04 - Production of liquid hydrocarbon mixtures from oil shale, oil-sand, or non-melting solid carbonaceous or similar materials, e.g. wood, coal by extraction
B03B 1/00 - Conditioning for facilitating separation by altering physical properties of the matter to be treated
C02F 1/40 - Devices for separating or removing fatty or oily substances or similar floating material
C02F 1/52 - Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
C02F 11/14 - Treatment of sludgeDevices therefor by de-watering, drying or thickening with addition of chemical agents
37 - Construction and mining; installation and repair services
40 - Treatment of materials; recycling, air and water treatment,
42 - Scientific, technological and industrial services, research and design
Goods & Services
Fixed and movable, apparatus, devices and installations used in a purification plant, namely, a main reactor, in the nature of industrial chemical reactors for treatment, purification, secondary treatment, disinfection, decontamination, decolloidation and pollution control of sludge; fixed and movable apparatus, devices and installations used in a purification plant, namely, a main reactor, in the nature of industrial chemical reactors and in a process for dewatering and reducing in volume the treated sludge Building, commissioning, repair and maintenance of fixed and movable apparatus, devices and installations for treatment, purification, secondary treatment, pollution control of sludge; services of building, commissioning, repair and maintenance of fixed or movable apparatus, devices and installations for dewatering and pollution control of sludge Treatment, purification, secondary treatment, disinfection, decontamination, decolloidation and pollution control of sludge; services of dewatering and pollution control of sludge Engineering services, namely, designing, calculating and dimensioning of facilities used for treatment, purification, secondary treatment, disinfection, decontamination, decolloidation, and pollution control of sludge, dewatering sludge
01 - Chemical and biological materials for industrial, scientific and agricultural use
11 - Environmental control apparatus
37 - Construction and mining; installation and repair services
40 - Treatment of materials; recycling, air and water treatment,
42 - Scientific, technological and industrial services, research and design
Goods & Services
Physical-chemical preparations and chemicals for the treatment, purification, disinfection, decontamination and remediation of water, industrial, wine-growing and agricultural effluent, sludge, soil and groundwater,; Chemicals for removing water from and remediation of sludge and soil. Apparatus, devices and installations (fixed or mobiles) for the treatment, purification, disinfection, decontamination and remediation of water, industrial, wine-growing or agricultural effluent, sludge, soil and groundwater; Apparatus, devices and installations (fixed or mobile) for removing water from and remediation of sludge and soil. Construction, commissioning, repair and maintenance of apparatus, devices and installations (fixed or mobile) for the treatment, purification, disinfection, decontamination and remediation of water and industrial, wine-growing or agricultural effluent, sludge, soil and groundwater; Construction, commissioning, repair and maintenance of apparatus, devices and installations (fixed or mobile) for removing water from and remediation of sludge and soil. Treatment, purification, disinfection, decontamination and remediation of water, industrial, wine-growing or agricultural effluent, sludge, soil and groundwater; Removal of water from and remediation of sludge and soil. Surveying, namely design, calculation and dimensioning of installations in the field of the treatment, purification, disinfection, decontamination and remediation of waste water, industrial, wine-growing or agricultural effluent, sludge, soil and groundwater, removal of water from sludge and soil, technical project studies; Surveying, consultancy in the field of the treatment of water and effluent in general.
28.
Method for separating liquid from suspended matter in a sludge and device for same
The invention relates to a method for separating the liquid part from the suspended matter in a sludge supplied in a continuous flow at a flow rate of QEB = V/hour. The flow is divided into at least two partial flows which are sprayed on top of one another into a sealed chamber of volume v < V/20, simultaneously injecting air therein at a flow rate d, said chamber being kept under overpressure conditions. The suspended matter of the thus treated flow is then left to decant in a collection container, with the cake or solid part falling to the bottom and separating from the liquid part which is continuously discharged.
The invention relates to a method for separating the liquid part from the suspended matter in a sludge supplied in a continuous flow at a flow rate of QEB = V/hour. The flow is divided into at least two partial flows which are sprayed on top of one another into a sealed chamber of volume v < V/20, simultaneously injecting air therein at a flow rate d, said chamber being kept under overpressure conditions. The suspended matter of the thus treated flow is then left to decant in a collection container, with the cake or solid part falling to the bottom and separating from the liquid part which is continuously discharged.
The invention relates to a method and device for clarifying water by means treatment of the colloidal structures contained in a liquid and/or a sludge supplied in a continuous flow at a flow rate of QEB = VEB/hour. The flow is sprayed into a chamber (2) under overpressure conditions in relation to atmospheric pressure, said chamber (2) having a volume v < VEB/20, and air (10) being injected simultaneously therein at a flow rate d.
The invention relates to a method and device for clarifying water by means treatment of the colloidal structures contained in a liquid and/or a sludge supplied in a continuous flow at a flow rate of QEB = VEB/hour. The flow is sprayed into a chamber (2) under overpressure conditions in relation to atmospheric pressure, said chamber (2) having a volume v < VEB/20, and air (10) being injected simultaneously therein at a flow rate d.
The invention relates to a method and to a device for scrubbing liquid effluents laden with dissolved or undissolved organic and/or inorganic substances and continuously fed at a flow rate Df. After a preliminary effluent-floating operation if required, the method comprises carrying out at least one treatment cycle, the treatment cycle including a first step in which the effluents are subjected to an electrolytic treatment by circulation in a first compartment while generating a very strong turbulence, followed by a second step in which the undissolved elements contained in the effluents are agglomerated by coagulation/flocculation before circulating the effluents in a second free surface compartment, with the scraping of the sludge carried out at the upper portion, while bubbling and maintaining a reduced turbulence in said second compartment.
This is a process and a device for treating wastewaters resulting from the agri-food industry that have an acidic pH below 2, said waters being charged with organic substances taken from phospholipids, proteins and/or polyphenols, with a COD above 10 000 mg/l. Calcium carbonate CaCO3, lime and/or milk of lime are added to the wastewaters while keeping the pH below 4, added next are soluble carbonate ions in order to raise the pH above 5.5 and an organic flocculent, and the mixture is settled slowly in a settling tank (12, 39) for the time necessary to bring the supernatant liquid part (20, 42), to a reduced COD below a given threshold.
The invention relates to a method and a device for purifying liquid effluents, in which water is separated from substances by performing, in a single vertical enclosure (3), a vertical bubbling in the effluents fed at a flow rate d. The enclosure has a free surface and includes at least two compartments (4, 5, 6, 7) communicating together for enabling a circulation between the compartments successively from the top to the bottom and from the bottom to the top between the lower portion thereof and a medium level at a flow rate D at least three times higher than the flow rate d. The supernatant phase is continuously discharged and a hydraulic or gaseous chemical oxidation of said effluents is simultaneously carried out in the same enclosure, the chemical oxidation rate and the bubble flow rate and size being selected in order to progressively obtain a separation of the solid/liquid and liquid/liquid phases at the surface of the enclosure for obtaining a COD below a predetermined threshold.
01 - Chemical and biological materials for industrial, scientific and agricultural use
11 - Environmental control apparatus
37 - Construction and mining; installation and repair services
40 - Treatment of materials; recycling, air and water treatment,
Goods & Services
Chemicals for the treatment, purification, secondary
treatment, disinfection, decontamination and pollution
control of water, of effluents from industry, wine
production or agriculture, of sludge, of soils and of ground
water, chemicals for dewatering sludge and soils. Apparatus, devices and installations, (fixed or movable) for
treatment, purification, secondary treatment, disinfection,
decontamination and pollution control of water, of effluents
from industry, wine production or agriculture, of sludge, of
soils and of ground water; apparatus, devices and
installations (fixed or movable) for dewatering sludge and
soils. Services of building, commissioning, repair and maintenance
of apparatus, devices and installations (fixed or movable)
for treatment, purification, secondary treatment, pollution
control of effluent water from industry, wine production or
agriculture, of sludge, of soils and of ground water;
services of building, commissioning, repair and maintenance
of apparatus, devices and installations (fixed or movable)
for dewatering sludge and soils. Services of treatment, purification, secondary treatment,
disinfection, decontamination and pollution control of
water, of effluents from industry, wine production or
agriculture, of sludge, of soils and of ground water;
services of dewatering sludge and soils.
01 - Chemical and biological materials for industrial, scientific and agricultural use
11 - Environmental control apparatus
37 - Construction and mining; installation and repair services
40 - Treatment of materials; recycling, air and water treatment,
Goods & Services
Chemicals for the treatment, purification, secondary treatment, disinfection, decontamination and pollution control of water, of effluents from industry, wine production or agriculture, of sludge, of soils and of ground water, chemicals for dewatering sludge and soils Fixed and movable water treatment units for treatment, purification, secondary treatment, disinfection, decontamination and pollution control of water and industrial effluents, for industrial use and agricultural use; and dewatering machines for use in treatment of sludge and soils Repair and maintenance of water treatment units and dewatering machines Services of treatment, purification, secondary treatment, disinfection, decontamination and pollution control of water, of effluents from industry, wine production or agriculture, of sludge, of soils and of ground water; services of dewatering sludge and soils
01 - Chemical and biological materials for industrial, scientific and agricultural use
11 - Environmental control apparatus
37 - Construction and mining; installation and repair services
40 - Treatment of materials; recycling, air and water treatment,
Goods & Services
Chemicals for the treatment, purification, disinfection, decontamination and remediation of water, industrial, wine-growing and agricultural effluent, sludge, soil and groundwater, chemicals for removing water from sludge and soil. Apparatus, devices and installations (fixed or mobiles) for the treatment, purification, disinfection, decontamination and remediation of water, industrial, wine-growing or agricultural effluent, sludge, soil and groundwater; apparatus, devices and installations (fixed or mobile) for removing water from sludge and soil. Construction, commissioning, repair and maintenance of apparatus, devices and installations (fixed or mobile) for the treatment, purification, disinfection, decontamination and remediation of water and industrial, wine-growing or agricultural effluent, sludge, soil and groundwater; construction, commissioning, repair and maintenance of apparatus, devices and installations (fixed or mobile) for removing water from sludge and soil. Treatment, purification, disinfection, decontamination and remediation of water; of industrial, wine-growing or agricultural effluent, sludge, soil and groundwater; removal of water from sludge and soil.
