CN106746301A - 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
CN106746301A
CN106746301A CN201611257220.8A CN201611257220A CN106746301A CN 106746301 A CN106746301 A CN 106746301A CN 201611257220 A CN201611257220 A CN 201611257220A CN 106746301 A CN106746301 A CN 106746301A
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China
Prior art keywords
waste water
treatment
percolate
aluminium powder
reactor
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Pending
Application number
CN201611257220.8A
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Chinese (zh)
Inventor
龙炳清
舒曼
曾伟
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Sichuan Normal University
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Sichuan Normal University
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Priority to CN201611257220.8A priority Critical patent/CN106746301A/en
Publication of CN106746301A publication Critical patent/CN106746301A/en
Pending legal-status Critical Current

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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
    • C02F1/66—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

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  • Life Sciences & Earth Sciences (AREA)
  • Hydrology & Water Resources (AREA)
  • Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Water Supply & Treatment (AREA)
  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Biological Treatment Of Waste Water (AREA)
  • Purification Treatments By Anaerobic Or Anaerobic And Aerobic Bacteria Or Animals (AREA)

Abstract

The processing method through the percolate after deamination treatment that the present invention is introduced includes CO2Preneutralization, solid-liquor separation, CO2The 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, cleaning aluminium powder is added into reactor, and be passed through industrial CO2Reacted, the granularity of aluminium powder is less than 180 mesh, every liter of waste water adds aluminium powder 10g~40g, and the stirring reaction time is 1h~3h, and reaction temperature is 25 DEG C~60 DEG C, CO2 Pressure be 0.3MPa~1.0MPa.Reacted waste water carries out solid-liquor separation, the aluminium powder Returning reactor isolated.Liquid divides admittedly Waste water milk of lime or other alkaline matters after adjust its pH value to 7.0~8.5, subsequently into anaerobic reactor.Waste water 24h~120h is stopped in anaerobic reactor, anaerobism temperature is 25 DEG C~55 DEG C.Waste water after anaerobism enters biology aerobic pond normal temperature Treatment, the Aerobic Process for Treatment time is 6h~16h.Waste water after Aerobic Process for Treatment enters sedimentation basin, and the sedimentation time is 1h~3h.Irregularly Extract sludge out from sedimentation basin to be filtered, filter cake returns to refuse landfill landfill, filtrate returns to Aerobic Pond.The supernatant of sedimentation basin Waste water send multi-layer biological filter tower to process.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 is 2m~4m.The dominant bacteria of biological filtering tower combined working is the red pseudomonas in photosynthetic bacteria（Rhodopseudomonas）. The hydraulic load of biological filtering tower combined working 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）, the waste water stone after reduction Grey breast or other alkaline matters 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, larger molecular organicses further become small organic molecule, are subsequent bio oxygen Change and create more favorable condition.Processed by biological oxidation, remaining most of organic matters are removed, while going to denitrogenate the pollution such as phosphorus Thing.Waste water finally enters activated carbon or porous ceramic grain biological filtering tower combined working, in the presence of microorganism, particularly red pseudomonas, enters The pollutant such as one step organics removal and nitrogen phosphorus, it is ensured that the waste water stably reaching standard discharge after treatment.
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（1h、40℃、CO2Pressure 0.8MPa, every liter of waste water add aluminium powder 30g）, anaerobism（PH8.5,96h, 25 DEG C~35 DEG C）, it is aerobic（10h）And biological filtering tower combined working（Porous ceramic grain packing layer gross thickness 4m, water Power load 100m3/m2.d）The COD of water outlet after treatmentCrIt is 72mg/L, NH3-N 6.8mg/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（2h、25℃、CO2Pressure 0.3MPa, every liter of waste water add aluminium Powder 10g）, 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, water Power load 50m3/m2.d）The COD of water outlet after treatmentCrIt is 54mg/L, NH3-N 4.1mg/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, and lead to by the waste water feeding voltage-resistant reactor after adjusted pond regulation Enter industrial CO2Reacted, the granularity of aluminium powder is less than 180 mesh, every liter of waste water adds aluminium powder 10g~40g, the stirring reaction time is 1h~3h, reaction temperature be 25 DEG C~60 DEG C, CO2Pressure be 0.3MPa~1.0MPa, reacted waste water carries out liquid and divides admittedly From the aluminium powder Returning reactor isolated, waste water milk of lime or other alkaline matters after solid-liquor separation adjust its pH value and arrives 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, into the treatment of biology aerobic pond normal temperature, the Aerobic Process for Treatment time is 6h~16h, the waste water after Aerobic Process for Treatment to the waste water after anaerobism Into sedimentation basin, the sedimentation time is 1h~3h, irregularly extracts sludge out from sedimentation basin and is filtered, and filter cake returns to garbage loading embeading Field landfill, filtrate returns to Aerobic Pond, and 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 active Charcoal or porous ceramic grain, filler gross thickness are 2m~4m, and the dominant bacteria of biological filtering tower combined working is the red pseudomonas in photosynthetic bacteria, raw The hydraulic load of thing filter tower is 40 m3/m2.d~100m3/m2.d, the standard water discharge discharge of biological filtering tower combined working.
CN201611257220.8A 2016-12-30 2016-12-30 The processing method of the percolate after deamination treatment Pending CN106746301A (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

Non-Patent Citations (7)

* Cited by examiner, † Cited by third party
Title
宋志伟 等: "《水污染控制工程》", 31 July 2013, 中国矿业大学出版社 *
张修正: "《化工厂电气手册》", 31 December 1994, 化学工业出版社 *
徐根良: "《废水控制及治理工程》", 30 June 1999, 浙江大学出版社 *
施悦 等: "《环境氧化还原处理技术原理与应用》", 31 August 2013, 哈尔滨工业大学出版社 *
湖南省爱国卫生运动委员会办公室: "《爱国卫生运动工作手册》", 31 July 1986, 湖南人民出版社 *
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