CN106746299A - The processing method of the percolate after deamination treatment - Google Patents

The processing method of the percolate after deamination treatment Download PDF

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Publication number
CN106746299A
CN106746299A CN201611257160.XA CN201611257160A CN106746299A CN 106746299 A CN106746299 A CN 106746299A CN 201611257160 A CN201611257160 A CN 201611257160A CN 106746299 A CN106746299 A CN 106746299A
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China
Prior art keywords
waste water
treatment
percolate
solid
aluminium powder
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Pending
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CN201611257160.XA
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Chinese (zh)
Inventor
龙炳清
公培宝
姜鹏飞
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Sichuan Normal University
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Sichuan Normal University
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Priority to CN201611257160.XA priority Critical patent/CN106746299A/en
Publication of CN106746299A publication Critical patent/CN106746299A/en
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    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F9/00—Multistage treatment of water, waste water or sewage
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/34—Treatment of water, waste water, or sewage with mechanical oscillations
    • C02F1/36—Treatment of water, waste water, or sewage with mechanical oscillations ultrasonic vibrations
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/66—Treatment of water, waste water, or sewage by neutralisation; pH adjustment
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/70—Treatment of water, waste water, or sewage by reduction
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F3/00—Biological treatment of water, waste water, or sewage
    • C02F2003/001—Biological treatment of water, waste water, or sewage using granular carriers or supports for the microorganisms
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F3/00—Biological treatment of water, waste water, or sewage
    • C02F2003/001—Biological treatment of water, waste water, or sewage using granular carriers or supports for the microorganisms
    • C02F2003/003—Biological treatment of water, waste water, or sewage using granular carriers or supports for the microorganisms using activated carbon or the like
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2301/00—General aspects of water treatment
    • C02F2301/08—Multistage treatments, e.g. repetition of the same process step under different conditions
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F3/00—Biological treatment of water, waste water, or sewage
    • C02F3/02—Aerobic processes
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F3/00—Biological treatment of water, waste water, or sewage
    • C02F3/28—Anaerobic digestion processes
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F3/00—Biological treatment of water, waste water, or sewage
    • C02F3/34—Biological treatment of water, waste water, or sewage characterised by the microorganisms used
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E50/00—Technologies for the production of fuel of non-fossil origin
    • Y02E50/30—Fuel from waste, e.g. synthetic alcohol or diesel

Abstract

The processing method through the percolate after deamination treatment that the present invention is introduced includes CO2Preneutralization, solid-liquor separation, the CO under ul-trasonic irradiation2The operations such as pressurization aluminum reduction, anaerobism, the treatment of aerobic and biological filtering tower combined working, the waste water after treatment can stably reaching standard discharge.

Description

The processing method of the percolate after deamination treatment
Technical field
The present invention relates to a kind of processing method of the percolate after being processed through deamination.
Background technology
Garbage loading embeading inevitably produces percolate.Pollutants from landfill leachate COD concentration is high, and composition is multiple Miscellaneous, intractability is big.If the waste water is not processed is directly discharged into environment, severe contamination will be caused to environment.Current percolate The main method being combined using biological treatment and materializing strategy is processed.It is a considerable amount of due to containing in percolate Persistence organic pollutant（Containing phenyl ring and（Or）Heterocycle organic matter）, thereby resulting in Biochemical method percolate can not be up to standard Discharge.Usual percolate first uses blow-off method deamination, then through biological treatment, eventually passes counter-infiltration or advanced oxidation（Such as Fenton methods, catalytic oxidation etc.）Further treatment could qualified discharge.Reverse-osmosis treated can produce concentrated water, this part concentrated water General recharge landfill waste, thus causes the salinity of percolate to increase, and reverse-osmosis treated is adversely affected, when serious Reverse osmosis treatment system is caused to be paralysed.Advanced oxidation processes processing cost is high.Development cost is low, the rubbish of energy stably reaching standard discharge oozes The processing method of filtrate has larger practical value.
The content of the invention
For the problem that current method for treating garbage percolation liquid is present, the purpose of the present invention is to find low cost, can stablize The processing method of the percolate of qualified discharge, it is characterised in that the percolate CO after being processed through deamination2（CO2Can Being industrial CO2, or fuel combustion, the CO that mineral are decomposed, fermentation process is produced2）PH value is neutralized less than 7, liquid is carried out Gu separating, the waste water isolated enters regulating reservoir, and the solid isolated returns to refuse landfill landfill.After adjusted pond regulation Waste water sends into voltage-resistant reactor, and cleaning aluminium powder is added into reactor, under ul-trasonic irradiation and is passed through industrial CO2Reacted. The granularity of aluminium powder is less than 180 mesh, and every liter of waste water adds aluminium powder 10g~40g.The stirring reaction time is 20min~45min.Reaction Temperature is 25 DEG C~60 DEG C.CO2Pressure be 0.3MPa~1.0MPa.The power of every cubic metre of waste water input ultrasonic wave is 2kW ~8kW.Reacted waste water carries out solid-liquor separation, the aluminium powder Returning reactor isolated.Waste water lime after solid-liquor separation Breast or other alkaline matters adjust its pH value to 7.0~8.5, subsequently into anaerobic reactor.Waste water is stopped in anaerobic reactor 24h~120h, anaerobism temperature is 25 DEG C~55 DEG C.Waste water after anaerobism is processed into biology aerobic pond normal temperature, during Aerobic Process for Treatment Between be 6h~16h.Waste water after Aerobic Process for Treatment enters sedimentation basin, and the sedimentation time is 1h~3h.Irregularly extracted out from sedimentation basin Sludge is filtered, and filter cake returns to refuse landfill landfill, and filtrate returns to Aerobic Pond.The supernatant waste water of sedimentation basin send multi-layer biological Filter tower treatment.The filler of biological filtering tower combined working is activated carbon or porous ceramic grain, is 0.5m~2.0m per thickness degree, gross thickness be 2m~ 4m.The dominant bacteria of biological filtering tower combined working is the red pseudomonas in photosynthetic bacteria（Rhodopseudomonas）.The water of biological filtering tower combined working Power load is 40 m3/m2.d~100m3/m2.d.The standard water discharge discharge of biological filtering tower combined working.
The object of the present invention is achieved like this, through deamination process percolate solid matter it is more, basicity compared with Height, if using plus milk of lime carry out stripping deamination technique, the percolate contains more Ca2+, it and CO2It is anti-in percolate CaCO should be generated3.Before aluminum reduction reactor is entered, CO is used2Preneutralization precipitation is carried out, and carries out solid-liquor separation, it is to avoid solid-state Material and generation CaCO3Influence to aluminum reduction, is also beneficial to the complete aluminium powder recycling of unreacted.The waste water isolated Into after aluminum reduction reactor, the larger molecular organicses in waste water, particularly persistence organic pollutant（Containing phenyl ring and（Or） The organic matter of heterocycle etc.）Destroyed by the effect of the strong reduction free radical that aluminum reduction is produced, be that subsequent biochemical treatment is created Advantage.It is passed through pressure CO2Purpose be maintain the suitable pH value of aluminum reduction（2.0~5.0）, it is input into the effect of ultrasonic wave It is to speed up the mass transport process of reduction reaction.Waste water milk of lime or other alkaline matters after reduction adjust its pH value, to meet The requirement of follow-up anaerobic and aerobic process.Through the waste water of aforementioned processing in anaerobic processes, by the effect of microorganism, macromolecular Organic matter further becomes small organic molecule, is that more favorable condition is created in subsequent bio oxidation.Processed by biological oxidation, remained Remaining most of organic matters are removed, while going to denitrogenate the pollutants such as phosphorus.Waste water finally enters activated carbon or porous ceramic grain is biological Filter tower, in the presence of microorganism, particularly red pseudomonas, the pollutant such as further organics removal and nitrogen phosphorus, it is ensured that place Waste water stably reaching standard discharge after reason.
Relative to existing method, outstanding advantages of the invention are to use aluminum reduction, by the persistence in percolate Organic pollution is destroyed, and is that subsequent biological treatment creates favorable conditions, so as to ensure the waste water stably reaching standard discharge after treatment；Phase For the metal deoxidization used in other wastewater treatments, using CO2Make acidulant instead of now widely used sulfuric acid, no Introduce SO4 2-Ion, eliminates generation H2The material base of S, so as to avoid H2The pollution of S, while it also avoid SO4 2-To detesting Oxygen and it is aerobic during microorganism inhibitory action, greatly improve the efficiency of biological treatment；Contain in refuse landfill landfill waste gas There is abundant CO2Waste gas is available for utilizing, and can not only reduce processing cost, and can reduce carbon emission；Waste water energy after treatment is steady Qualified discharge is determined, with obvious economic benefit and environmental benefit.
Specific implementation method
Embodiment 1：1m is processed daily3Deamination percolate（Composition：CODCr45000 mg/L、NH3-N115 mg/L、T- P30mg/L）, through CO2Preneutralization, solid-liquor separation, aluminum reduction（20min、40℃、CO2Pressure 0.8MPa, every liter of waste water add aluminium Powder 30g, every cubic metre of waste water are input into the power 4kW of ultrasonic wave）, anaerobism（PH8.5,96h, 25 DEG C~35 DEG C）, it is aerobic（10h）With Biological filtering tower combined working（Porous ceramic grain packing layer gross thickness 4m, hydraulic load 100m3/m2.d）The COD of water outlet after treatmentCrFor 62mg/L, NH3-N 6.2mg/L、T-P0.3mg/L。
Embodiment 2：5m is processed daily3Deamination percolate（Composition: CODCr18000 mg/L、NH3-N43 mg/L、 T-P13mg/L）, through CO2Preneutralization, solid-liquor separation, aluminum reduction（35min、25℃、CO2Pressure 0.3MPa, every liter of waste water are added Aluminium powder 10g, every cubic metre of waste water are input into the power 2kW of ultrasonic wave）, anaerobism（PH7.0,24h, 35 DEG C~55 DEG C）, it is aerobic（6h） And biological filtering tower combined working（Active carbon filler layer gross thickness 2m, hydraulic load 50m3/m2.d）The COD of water outlet after treatmentCrFor 47mg/L, NH3-N 3.9mg/L、T-P0.3mg/L。

Claims (1)

1. it is a kind of through deamination process after percolate processing method, it is characterised in that the rubbish after being processed through deamination Percolate CO2PH value is neutralized less than 7, solid-liquor separation is carried out, the waste water isolated enters regulating reservoir, and the solid isolated is returned Refuse landfill landfill is returned, cleaning aluminium powder is added reactor, super by the waste water feeding voltage-resistant reactor after adjusted pond regulation Under sound wave effect and it is passed through industrial CO2Reacted, the granularity of aluminium powder is less than 180 mesh, and every liter of waste water adds aluminium powder 10g~40g, The stirring reaction time be 20min~45min, reaction temperature be 25 DEG C~60 DEG C, CO2Pressure be 0.3MPa~1.0MPa, often The power of cubic meter waste water input ultrasonic wave is 2kW~8kW, and reacted waste water carries out solid-liquor separation, and the aluminium powder isolated is returned Reactor is returned, waste water milk of lime or other alkaline matters after solid-liquor separation adjust its pH value to 7.0~8.5, subsequently into Anaerobic reactor, waste water stops 24h~120h in anaerobic reactor, and anaerobism temperature is 25 DEG C~55 DEG C, and the waste water after anaerobism enters Enter the normal temperature treatment of biology aerobic pond, the Aerobic Process for Treatment time is 6h~16h, and the waste water after Aerobic Process for Treatment enters sedimentation basin, during precipitation Between be 1h~3h, irregularly extract sludge out from sedimentation basin and filtered, filter cake returns to refuse landfill landfill, and filtrate returns Oxygen pond, the supernatant waste water of sedimentation basin send multi-layer biological filter tower to process, and the filler of biological filtering tower combined working is activated carbon or porous ceramic grain, filler Gross thickness is 2m~4m, and the dominant bacteria of biological filtering tower combined working is the red pseudomonas in photosynthetic bacteria, the hydraulic load of biological filtering tower combined working It is 40 m3/m2.d~100m3/m2.d, the standard water discharge discharge of biological filtering tower combined working.
CN201611257160.XA 2016-12-30 2016-12-30 The processing method of the percolate after deamination treatment Pending CN106746299A (en)

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Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101665311A (en) * 2009-09-24 2010-03-10 中南大学 Catalysis and micro-electrolysis combined technology for high-concentration refractory organic wastewater

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101665311A (en) * 2009-09-24 2010-03-10 中南大学 Catalysis and micro-electrolysis combined technology for high-concentration refractory organic wastewater

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何晓文: "《水体污染处理新技术及应用》", 31 March 2013, 中国科学技术大学出版社 *
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