Background technology
Refuse leachate is a waste water highly difficult, that high density contains organic pollutant, virus, germ, humic acid, ammonia nitrogen, phenol, all kinds of heavy metals, uses traditional waste water treatment process to be difficult to qualified discharge.The technology way flow process that generally adopts both at home and abroad at present is complicated, and floor space is big, and energy consumption is big, and effluent quality is difficult to reach reuse standard.As China No. 200520098030.7 patents disclosed " a kind of refuse leachate treatment unit ": container bottom connects one and has the gate valve drain pipe; Container bottom and drain pipe interface are provided with strainer; The drain pipe underside is connected with liquid holding bottle, and the liquid holding bottle bottom is connected with a discharge opeing gate valve.This device only can filter the bigger solid of partial volume in the refuse leachate, effectively sterilization, desalination, the liquid after the processing can not as in the water reuse.
Generally adopt the technical process of bioid method to handle at present both at home and abroad.This technical process still exists floor space big, and energy consumption is big, and effluent quality is difficult to reach the technical problem of reuse standard.Like China's No. 200920223289.8 patents disclosed " refuse leachate treatment system equipment ": form by the comprehensive aeration tank that connects successively, deposition aeration tank, vacuum filtration pond, vacuum well.This equipment fails effectively to remove ammonia nitrogen, phenyl ring class toxic substance, and effluent quality is relatively poor.And for example China's No. 200910004302.5 patented claims disclosed " process flow for treating refuse leachate by microwave method ": form by grid, equalizing tank, lift pump, chemicals dosing plant, microwave treatment machine, settling tank, sand filter, lift pump, charcoal absorption pond, clean water basin pipe coupling successively.This technology still is difficult to remove cyanogen in the waste water, ammonia, nitrogen, toxic substance such as stupid.
The way of removing cyanogen in the waste water, ammonia, nitrogen, toxic substance such as stupid in the traditional technology is an air stripping method.As China No. 03132330.8 patent disclosed " a kind of treatment Methods of Cyanide Wastewater and treatment system thereof ": will contain in the solution of cyanogen root; Add acid and regulate pH value between 6-8; Make hydrocyanic ion be converted into the acid of hydrogen cyanogen root; Use the air cycle stripping again, the prussiate of aqueous phase is transferred in the gas phase gone, adopt hot coke cracking prussic acid to handle containing the cyanogen air behind the stripping.The major defect that air stripping technology exists is: (1), needs are built bulky bath; (2) pyrolyzer needs work under 200-600 ℃ of environment, and energy consumption is big, and temperature is high; (3), be difficult to stupid type of material of cracking.(4) can not reclaim the hydrogen dicyanogen behind the stripping.
In addition, CMBR vibration membrane bioreactor technology that present patent application relates to such as applicant are in No. 200820201611.2 patents of China of application on October 10th, 2008 disclosed " WWT of intelligent vibration of ultrasonic wave membrane biological reaction and in water recycling device ".
Summary of the invention
To the problem that exists in the prior art; The object of the present invention is to provide a kind of refuse leachate UW combination waste water treatment process; Coagulation-flocculation precipitation of heavy metals zwitterion; Refuse leachate is through UW catalyzing oxidizing degrading ammonia nitrogen, sulfide, humic acid etc., and bioid is handled COD, BOD, reaches reuse standard behind ozone and disinfection by ultraviolet light and the membrane filtration.
Another object of the present invention provides a cover refuse leachate UW combination Waste Water Treatment, is used to realize above-mentioned refuse leachate UW combination waste water treatment process, and volume is little, take up an area of little, energy-conserving and environment-protective, operating cost is low, and stable effluent quality.
To achieve these goals, refuse leachate UW combination waste water treatment process of the present invention may further comprise the steps successively:
(a) refuse leachate is got into the equalizing tank of adding a cover after the grid canal is removed big part suspended substance, hold back deposition most suspended substances, hair, big gravel, regulate water quality and quantity, concurrent oxygen and the hydrolysis reaction of beginning to detest.
(b) solution of handling in the step (a) is transferred pH value in coagulative precipitation tank, interpolation compound coagulant LC1, composite flocculation agent LC2 precipitate inorganic dissolved substance, heavy metal and organic colloid.
(c) solution of handling in the step (b) is carried out the absorption of hardly degraded organic substance regulating YIN and YANG ionic in UW catalyzed oxidation pond, produce .OH .OOH, H
2O
2Radical carries out interior electrolysis; And carry out redox reaction and remove ammonia nitrogen, sulfide; Humic acid, sulfide, halogenide, long carbochain hydrocarbon, heterocyclic hydrocarbon, phenyl ring class, suspensoid filter and degrade; To remove portion C OD, the biochemistry ratio that removes solution toxicity and raising hardly degraded organic substance is to BOD/COD>=0.3.
(d) with the solution of handling in the step (c) successively in ABR traverse baffle anaerobic pond, hydrolytic tank, oxygen compatibility pool, Aerobic Pond through the series of biologic processing.
(e) with the solution of handling in the step (d) in the aerobic filtration treatment of CMBR vibration membrane bio-reactor.
(f) with the solution of handling in the step (e) in carbon filter scavenging and foul smell.
(g) solution of handling in the step (f) is regularly added chlorine tablets or ultraviolet ray or ozone/dioxide peroxide contact sterilizing in disinfecting tank.
(h) solution of handling in the step (g) is produced water in RO membrane reverse osmosis system after nanofiltration and reverse osmosis membrane filtration processing and meet water reuse water quality in the national reclaimed water.
Preferably,, can further handle, comprise following process step the dense water that RO membrane reverse osmosis system discharges for replenishment of process more:
(i) with in electrolyzer, removing inorganics and negatively charged ion such as heavy metal ion, nitrate radical, nitrite anions, sodium ion, ammonium ion, sulfate radical, cl ions, calcium ions and magnesium ions behind the dense water interpolation LC3 inorganic compounding medicament that produces in the step (h).
(j) scraped into sludge sump by slag scraper in air flotation pool, removing the organic scum silica frost of formation such as colloid and throw out after the solution interpolation LC4 organic composite medicine agent of handling in the step (i).
(k) solution of handling in the step (j) is back to the equalizing tank re-treatment of step (a).
(l) mud of each generating step is collected, is stored in sludge thickener, supernatant is back to the equalizing tank re-treatment of step (a), and thickened sludge completely back is regularly pumped to the refuse landfill landfill.
For realizing above goal of the invention; Guarantee the enforcement of above-mentioned refuse leachate UW combination waste water treatment process; Refuse leachate UW combination Waste Water Treatment of the present invention; Comprise the equalizing tank, coagulative precipitation tank, UW catalyzed oxidation pond, ABR traverse baffle anaerobic pond, hydrolytic tank, oxygen compatibility pool, Aerobic Pond, CMBR vibration membrane bio-reactor, carbon filter, disinfecting tank, the RO membrane reverse osmosis system that communicate successively, each bottom, pond is provided with sludge outlet.
Said equalizing tank is used to hold back deposition most suspended substances, big grit, regulates water quality and quantity, the concurrent oxygen hydrolysis reaction of beginning to detest, and the ingress of equalizing tank is provided with the grid canal and removes big part suspended substance.
Said coagulative precipitation tank is used to transfer pH value and adds compound coagulant LC1, composite flocculation agent LC2 precipitation of heavy metals.
Said UW catalyzed oxidation pond is used for removing ammonia nitrogen, degradation of organic substances, comprises ultrasonic generator and the bubble generator that places the bottom; UW is pulverized bubble, suspended substance and additive, improves the biochemistry ratio of degradation of organic substances; UW catalyzed oxidation pond is provided with squirt pump and solution is added around the nozzle ejection that is sent to top, UW catalyzed oxidation pond; Nozzle is provided with micropore porcelain ring packing and solution absorbs reaction; Solution passes micropore porcelain ring packing, arrives UW catalyzed oxidation pond, bottom and realizes ultrasonic ammonia stripping.
Said ABR traverse baffle anaerobic pond is used to provide anaerobic environment, anaerobically fermenting, the cultivation activation, with high concentrated organic wastewater become can be biochemical low-concentration organic waste water; ABR traverse baffle anaerobic pond comprises multistage plug-flow anaerobically fermenting baffled reactor.
Said hydrolytic tank is used for hydrolytic reactions and removes part organic pollutant and inorganic pollutant, is small molecules with macromolecules degradation; Hydrolytic tank comprises whisking appliance under water, is used for evenly controlling the dissolved oxygen concentration of solution; Comprise suspension ball filler, be used to hydrolysising microorganism growing carrier is provided.
Said oxygen compatibility pool comprises whisking appliance under water, is used for evenly controlling the dissolved oxygen concentration of solution; Comprise suspension ball filler, be used to the anoxic mikrobe growing carrier is provided.
Said Aerobic Pond comprises the anti-blocking aeration head pipe network that places the bottom, pond, is used for improving the dissolved oxygen concentration of solution; Comprise the water distribution pipe network and the biologic packing material that place in the pond.
Said CMBR vibration membrane bio-reactor is used for handling through ultrafiltration membrance filter, blocks and removes most of dissolved organic pollutant and mikrobes such as inorganic pollutant, bacterium, virus, blocks and removes whole colloids, suspended substance, blocks except that partly soluble macroion.
Said carbon filter is provided with the activated carbon filtration groove and is used for absorption, removes solution waste gas and foul smell.
Said disinfecting tank is used for regularly adding chlorine tablets or dioxide peroxide, ozone contact sterilizing, decomposes and removes all bacteriums, virus.
Said RO membrane reverse osmosis system is used for nanofiltration and reverse osmosis membrane filtration and blocks and remove most of dissolved zwitterion, blocks eliminating minute organic pollutant and inorganic pollutant, blocks and removes whole micro-colloids, trace suspension thing, blocks and removes partly soluble micro ion.
Preferably; For replenishment of process device more; Can further handle the dense water that RO membrane reverse osmosis system discharges, refuse leachate UW combination Waste Water Treatment of the present invention also comprises electrolyzer, air flotation pool, is used for the further dense water of the said RO membrane reverse osmosis of processing system discharge.
Said electrolyzer is connected with the dense water out of said RO membrane reverse osmosis system; The water-in of electrolyzer is provided with the LC3 chemicals dosing plant, is used to add LC3 inorganic compounding medicament; The electrolyzer water tank is evenly equipped with DC electrode.
Said air flotation pool is connected with the water outlet of said electrolyzer; The water-in of air flotation pool is provided with the LC4 chemicals dosing plant, is used to add the agent of LC4 organic composite medicine; The air flotation pool water tank is evenly equipped with air dissolved pump and ejector.
Adopt refuse leachate UW combination waste water treatment process of the present invention and treatment system thereof; Refuse leachate is through " processings of UW catalyzed oxidation pre-treatment---bioid processings---RO membrane reverse osmosis system filtration " art breading, and wherein the bioid processing has comprised " ABR traverse baffle anaerobism---double---aerobic---the CMBR vibration membrane of oxygen bio-reactor filtration treatment " technological process.Technology of the present invention has been guaranteed the treatment effect of refuse leachate, finally reaches to meet the assorted water water quality emission standard (GB/T18920-2002) of country's life.
The UW catalyzed oxidation pond of refuse leachate UW combination Waste Water Treatment of the present invention; The ultrasonic air filled cavity that will blast at the bottom of the pond is ground into microbubble (1~200 micron) and rises and overflow and with gluey zeyssatite or be with in little electrolytic iron carbon volcanized rock reaction and electric charge; Be with little electrolytic iron carbon volcanized rock to resolve synchronously; Produce a large amount of nitrogen, also take away the part ammonia, the ammonia of effusion can be become fertilizer by sulfuric acid liquid spraying absorption tower efficient absorption and be sold to market.The cavitation explosion bulb generation sonochemistry effect that UW produces is converted into nitrogen with most of ammonia and enters atmosphere.The NH3-N of a large amount of difficult degradations in the refuse leachate, humic acid, phenol COD produce the OH-radical of a large amount of strong oxidations under the ultrasound oxidation technology effect, with the NH3-N of difficult degradation, humic acid, oxidation of phenol is for low molecules of ethanol, methyl alcohol and produce a small amount of suspended substance mesocolloid etc.The biochemistry of the phenol of a large amount of difficult degradations than BOD/COD (BOD: biochemical oxygen demand, Biochemica1 Oxygen Demand writes a Chinese character in simplified form; COD: COD, Chemical Oxygen Demand writes a Chinese character in simplified form) just bring up to greater than 0.35 by 0.01, handled by bioid easily.And with respect to traditional air stripping technology and activated sludge process, effluent quality is more reliable and more stable, and energy consumption is littler.
Refuse leachate UW combination Waste Water Treatment of the present invention, refuse leachate is handled through ABR traverse baffle anaerobic pond, hydrolytic tank, oxygen compatibility pool.Rubbish penetrating fluid middle low-temp anaerobic fermentation (20-47 degree) in ABR traverse baffle anaerobic pond is emitted a large amount of methane gas, has removed the COD of 70-90%, emits nitrogen through the oxygen groove denitrification of holding concurrently again.High-concentration waste water all becomes lower concentration can biochemical waste water.The methane gas burning that produces can be used for heat regulation pond sewage.Refuse leachate fully stirs with air and contacts hydrolytic reactions removal part organic pollutant and inorganic pollutant at hydrolytic tank, is small molecules with macromolecules degradation.Refuse leachate is at oxygen compatibility pool; Through whisking appliance effect under water; Dissolved oxygen concentration D0=0.2-0.5 in the control solution system makes that the mikrobe in the solution is in anoxic condition, and in anoxic condition; Nitrated substance in the phegma (nitrogenous substances) is removed remaining nitrated ammonia nitrogen under the effect of denitrification flora, decompose and emit nitrogen.
The Aerobic Pond of refuse leachate UW combination Waste Water Treatment of the present invention, refuse leachate is handled through Aerobic Pond.Refuse leachate is at Aerobic Pond, undertaken nitrated and a large amount of COD that degrade emit CO2 gas by aerobic bacteria absorption; Removed the COD of 85-95%.Through the multi-stage aerobic pond is set, further degradation of contaminant.
The CMBR vibration membrane bio-reactor of refuse leachate UW combination Waste Water Treatment of the present invention, refuse leachate is through CMBR vibration membrane bioreactor for treatment.Refuse leachate is under ultrafiltration membrance filter; Block mikrobes such as removing most of bacterium, separating effect is much better than traditional settling tank, mud concentrates processing units such as reaching sand filtration, carbon filter, stable effluent quality; Water outlet does not contain suspended substance and mikrobe, and suspended substance and turbidity approach zero.CMBR vibration membrane biological reactor process flow process is simple, compact construction, and floor space is little.With the low-frequency ultrasonic waves cleaning technique membrane module of CMBR is carried out on-line cleaning, the shearing resistance that has improved membrane filtration greatly with prevent that film absorption from polluting, keep membrane flux lastingly, reduce the consumption of back flushing frequency and cleaning agent, prolonged the life-span of membrane module; Focus on the dissolving utilization ratio that has improved oxygen through low-frequency ultrasonic waves.
Adopt refuse leachate UW combination waste water treatment process of the present invention and treatment system thereof; Refuse leachate passes through carbon filter removing exhaust gas and foul smell again; Regularly add chlorine tablets or ozone contact sterilizing through disinfecting tank; Handle through RO membrane reverse osmosis system's nanofiltration and reverse osmosis membrane filtration, can obtain meeting the stable water outlet of the assorted water water quality emission standard (GB/T18920-2002) of country's life.
To sum up, adopt refuse leachate UW combination waste water treatment process of the present invention and treatment system thereof, refuse leachate obtains stay-in-grade water outlet through handling the various toxic pollutants of can degrading.System bulk is little, occupation of land is little, efficient is high, energy consumption is low, is easy to realize electromechanical integration control and management, adopts non-buried structure to help not destroying the original view of Construction Party, reduces the influence of the operation of system to the Office Area simultaneously.
Embodiment
The preferred embodiment of refuse leachate UW combination waste water treatment process of the present invention does; Refuse leachate through after " processing of UW catalyzed oxidation pre-treatment---bioid processing---RO membrane reverse osmosis system filtration " art breading, is further handled the dense water that RO membrane reverse osmosis system discharges.Its process step is following:
(a) refuse leachate is got into the equalizing tank of adding a cover after the grid canal is removed big part suspended substance, hold back deposition most suspended substances, hair, big gravel, regulate water quality and quantity, concurrent oxygen and the hydrolysis reaction of beginning to detest.
(b) solution of handling in the step (a) is transferred pH value in coagulative precipitation tank, interpolation compound coagulant LC1, composite flocculation agent LC2 precipitate inorganic dissolved substance, heavy metal and organic colloid.
(c) solution of handling in the step (b) is carried out the absorption of hardly degraded organic substance regulating YIN and YANG ionic in UW catalyzed oxidation pond, produce .OH .OOH, H
2O
2Radical carries out interior electrolysis; And carry out redox reaction and remove ammonia nitrogen, sulfide; Humic acid, sulfide, halogenide, long carbochain hydrocarbon, heterocyclic hydrocarbon, phenyl ring class, suspensoid filter and degrade; To remove portion C OD, the biochemistry ratio that removes solution toxicity and raising hardly degraded organic substance is to BOD/COD>=0.3.Add the zeyssatite fluorite or be with little electrolytic iron carbon volcanized rock by bottom, UW catalyzed oxidation pond in this step, in solution, flow from lower to upper; Solution adds through squirt pump and is sent to UW catalyzed oxidation pond top around nozzle ejection, passes the absorption reaction of micropore porcelain ring packing again, arrives UW catalyzed oxidation pond, bottom and realizes ultrasonic ammonia stripping.
(d) with the solution of handling in the step (c) successively in ABR traverse baffle anaerobic pond, hydrolytic tank, oxygen compatibility pool, Aerobic Pond through the series of biologic processing.
(e) with the solution of handling in the step (d) in the aerobic filtration treatment of CMBR vibration membrane bio-reactor.
(f) with the solution of handling in the step (e) in carbon filter scavenging and foul smell.
(g) solution of handling in the step (f) is regularly added chlorine tablets or ultraviolet ray or ozone/dioxide peroxide contact sterilizing in disinfecting tank.
(h) solution of handling in the step (g) is produced water in RO membrane reverse osmosis system after nanofiltration and reverse osmosis membrane filtration processing and meet water reuse water quality in the national reclaimed water.
(i) with in electrolyzer, removing inorganics and negatively charged ion such as heavy metal ion, nitrate radical, nitrite anions, sodium ion, ammonium ion, sulfate radical, cl ions, calcium ions and magnesium ions behind the dense water interpolation LC3 inorganic compounding medicament that produces in the step (h).Said LC3 inorganic compounding medicament is a composite polymeric aluminum chloride.
(j) scraped into sludge sump by slag scraper in air flotation pool, removing the organic scum silica frost of formation such as colloid and throw out after the solution interpolation LC4 organic composite medicine agent of handling in the step (i).The agent of said LC4 organic composite medicine is a composite polyacrylamide.
(k) solution of handling in the step (j) is back to the equalizing tank re-treatment of step (a).
(l) mud of each generating step is collected, is stored in sludge thickener, supernatant is back to the equalizing tank re-treatment of step (a), and thickened sludge completely back is regularly pumped to the refuse landfill landfill.
In conjunction with accompanying drawing; For guaranteeing the enforcement of above-mentioned refuse leachate UW combination waste water treatment process; Refuse leachate UW combination Waste Water Treatment of the present invention; Comprise the equalizing tank 001, coagulative precipitation tank 002, UW catalyzed oxidation pond 003, ABR traverse baffle anaerobic pond 004, hydrolytic tank 005, oxygen compatibility pool 006, Aerobic Pond 007, CMBR vibration membrane bio-reactor 008, carbon filter 009, disinfecting tank 010, the RO membrane reverse osmosis system 011 that communicate through waste pipe WS successively, each bottom, pond is provided with sludge outlet and connects sludge sump 014 through sludge pipe WN.Said equalizing tank 001 is used to hold back deposition most suspended substances, big grit, regulates water quality and quantity, the concurrent oxygen anaerobic hydrolysis reaction of beginning to detest, and the ingress of equalizing tank 001 is provided with the grid canal and removes big part suspended substance.Said coagulative precipitation tank 002 is used to transfer pH value, and adds compound coagulant LC1, composite flocculation agent LC2 precipitation of heavy metals.Said UW catalyzed oxidation pond 003 is used for removing ammonia nitrogen, degradation of organic substances, comprises ultrasonic generator and the bubble generator that places the bottom; UW is pulverized bubble, suspended substance and additive, improves the biochemistry ratio of degradation of organic substances; UW catalyzed oxidation pond is provided with squirt pump and solution is added around the nozzle ejection that is sent to top, UW catalyzed oxidation pond; Nozzle is provided with micropore porcelain ring packing and solution absorbs reaction; Solution passes micropore porcelain ring packing, arrives UW catalyzed oxidation pond, bottom and realizes ultrasonic ammonia stripping.Said ABR traverse baffle anaerobic pond 004 is used to provide anaerobic environment, anaerobically fermenting, the cultivation activation, with high concentrated organic wastewater become can be biochemical low-concentration organic waste water; ABR traverse baffle anaerobic pond 004 comprises multistage plug-flow anaerobically fermenting baffled reactor.Said hydrolytic tank 005 is used for hydrolytic reactions and removes part organic pollutant and inorganic pollutant, is small molecules with macromolecules degradation; Hydrolytic tank 005 comprises that whisking appliance under water is used for evenly controlling the dissolved oxygen concentration of solution; Comprise suspension ball filler, be used to hydrolysising microorganism growing carrier is provided.Said oxygen compatibility pool 006 comprises that whisking appliance under water is used for evenly controlling the dissolved oxygen concentration of solution; Comprise that suspension ball filler is used to the anoxic mikrobe growing carrier is provided.Said Aerobic Pond 007 is the multi-stage aerobic pond, establishes three grades of Aerobic Ponds altogether, comprises that the anti-blocking aeration head pipe network that places the bottom, pond is used for improving the dissolved oxygen concentration of solution; Comprise the water distribution pipe network and the biologic packing material that place in the pond.Said CMBR vibration membrane bio-reactor 008 is used for handling through ultrafiltration membrance filter, blocks and removes most of dissolved organic pollutant and mikrobes such as inorganic pollutant, bacterium, virus, blocks and removes whole colloids, suspended substance, blocks except that partly soluble macroion.Said carbon filter 009 is provided with the activated carbon filtration groove and is used for absorption, removes solution waste gas and foul smell.Be provided with air water separator between said CMBR vibration membrane bio-reactor and the carbon filter, be used for the gas of separation solution.Vacuum primingpump 109 is provided with vacuum primingpump and keeps low vacuum drawing liquid from the film group to produce water.Liquid-ring vacuum pump 110 is provided with liquid-ring vacuum pump and is used for drawing the bubble in the air water separator 103 air water mixed solutions and removes the gas in the film group, and gas clean-up makes drawing liquid product water from membrane module fast.Said contact sterilizing pond 010; Divide two lattice, preceding lattice pond is used for regularly adding chlorine tablets or ozone contact sterilizing, decomposes and removes all bacteriums, virus; Back lattice pond stores clear water; The water outlet of disinfecting tank is provided with pipeline and is connected with the carbon filter water outlet with said CMBR vibration membrane bio-reactor water outlet, is used for the back flushing membrane module, handles the membrane module and the carbon filter of water yield back flushing CMBR vibration membrane bio-reactor 008 with 5-10%.Said RO membrane reverse osmosis system 011 is used for nanofiltration and reverse osmosis membrane filtration and handles, and blocks and removes most of dissolved zwitterion, blocks eliminating minute organic pollutant and inorganic pollutant, blocks and removes whole micro-colloids, trace suspension thing, blocks and removes partly soluble micro ion.RO membrane reverse osmosis system 011 gives off qualified good water and is stored in effluent standard groove 105.
Refuse leachate UW combination Waste Water Treatment of the present invention also comprises electrolyzer 012, air flotation pool 013.The dense water that RO membrane reverse osmosis system 011 discharges is collected in dense water tank 106 through dense water pipe NY, when reaching a certain amount of, handles with water pump suction electrolyzer 012 again.The water-in of electrolyzer 012 is provided with LC3 chemicals dosing plant 107, before dense water gets into electrolyzer 012, adds LC3 inorganic compounding medicament composite polymeric aluminum chloride through LC3 chemicals dosing plant 107; Electrolyzer 012 water tank is evenly equipped with DC electrode.Said air flotation pool 013 is connected with the water outlet of said electrolyzer 012; The water-in of air flotation pool 013 is provided with LC4 chemicals dosing plant 108, adds LC4 organic composite medicine agent composite polyacrylamide by LC4 chemicals dosing plant 108; Air flotation pool 013 water tank is evenly equipped with air dissolved pump and ejector.
Refuse leachate UW combination Waste Water Treatment of the present invention also comprises gas distribution system, generates high-pressure air by gas blower 101 and is delivered to Aerobic Pond 007, CMBR vibration membrane bio-reactor 008 through blast main KQ, promotes bioid to handle.Comprise that also waste gas adsorption cleaning device is connected with said ABR traverse baffle anaerobic pond 004, be used for waste gas such as ammonia that the collection and purification wastewater treatment process produces, methane; Comprise that also vacuum pump and cooling system, multistage weak ammonia recycling tower are connected with said UW catalyzed oxidation pond; Be used for waste gas such as ammonia that the collection and purification wastewater treatment process produces, methane; Liftoff high chimney qualified discharge more than 15 meters is sent in weak ammonia recycling, micro-tail gas with vacuum fan after useless dilute sulphuric acid or salkali waste spray tower absorb.
Adopt refuse leachate UW combination waste water treatment process of the present invention and treatment system thereof, refuse leachate obtains stay-in-grade water outlet through handling the various toxic pollutants of can degrading.System bulk is little, occupation of land is little, efficient is high, energy consumption is low, is easy to realize electromechanical integration control and management, adopts non-buried structure to help not destroying the original view of Construction Party, reduces the influence of the operation of system to the Office Area simultaneously.Refuse leachate UW combination waste water treatment process: waste water is through equalizing tank; Coagulative precipitation tank is handled colloid, soda acid thing, heavy metal; Remove ammonia nitrogen, decomposition humic acid, sulfide, halogenide, long carbochain hydrocarbon, heterocyclic hydrocarbon, phenyl ring class in the UW catalyzed oxidation pond; Degrade a part of organic cod, BOD improves biochemical ratio; Remove ss suspended solid, tensio-active agent and oils; Handle deposition in ABR traverse baffle anaerobic pond, hydrolytic tank, oxygen compatibility pool, Aerobic Pond through bioid successively; Filter (micro-filtration or ultrafiltration) degrade most of organic cod, BOD in CMBR vibration membrane bio-reactor; Carbon filter scavenging and foul smell; Disinfecting tank sterilization, after the RO membrane reverse osmosis system osmosis filtration, what obtain to meet the new emission standard of country or local environmentally-friendly sanitary department loops back the water requirement.Reverse osmosis concentrated liquid all removes metallic cation, negatively charged ion and flocculation dispensing air supporting through electrolysis and concentrates, and air supporting waste water returns equalizing tank and handles again; Scum silica frost squeezes into filter cake after sludge sump concentrates that refuse landfill is recharged in the back with pressure pump or dewaters with pressure pumping pressure filter, send the landfill yard landfill after drying or burning.The treatment system that is used for above-mentioned technology also is provided.Refuse leachate UW combination waste water treatment process of the present invention and treatment system thereof, refuse leachate can be removed ss suspended solid, tensio-active agent and oils through handling; Degrade various colloids, soda acid thing, heavy metal toxic pollutant, degrade most of organic cod, BOD remove ammonia nitrogen, decompose humic acid, sulfide, halogenide, long carbochain hydrocarbon, heterocyclic hydrocarbon, phenyl ring class; Scavenging and foul smell; Obtain stay-in-grade water outlet.System bulk is little, occupation of land is little, efficient is high, energy consumption is low, is easy to realize electromechanical integration control and management, adopts non-buried structure to help not destroying the original view of Construction Party, reduces the influence of the operation of system to the Office Area simultaneously.