CN106746246A - TNT produces the processing method of waste water - Google Patents

TNT produces the processing method of waste water Download PDF

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Publication number
CN106746246A
CN106746246A CN201611254696.6A CN201611254696A CN106746246A CN 106746246 A CN106746246 A CN 106746246A CN 201611254696 A CN201611254696 A CN 201611254696A CN 106746246 A CN106746246 A CN 106746246A
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CN
China
Prior art keywords
waste water
sedimentation basin
composite powder
solid
reactor
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201611254696.6A
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Chinese (zh)
Inventor
龙炳清
方绪坤
周迅
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Sichuan Normal University
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Sichuan Normal University
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Publication date
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Priority to CN201611254696.6A priority Critical patent/CN106746246A/en
Publication of CN106746246A publication Critical patent/CN106746246A/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
    • C02F1/34—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
    • C02F1/58—Treatment of water, waste water, or sewage by removing specified dissolved compounds
    • 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
    • C02F1/705—Reduction by metals
    • 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
    • C02F2001/007—Processes including a sedimentation step
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2101/00—Nature of the contaminant
    • C02F2101/003—Explosive compounds, e.g. TNT
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2101/00—Nature of the contaminant
    • C02F2101/30—Organic compounds
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2101/00—Nature of the contaminant
    • C02F2101/30—Organic compounds
    • C02F2101/38—Organic compounds containing nitrogen
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2209/00—Controlling or monitoring parameters in water treatment
    • C02F2209/06—Controlling or monitoring parameters in water treatment pH
    • 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
    • C02F3/30—Aerobic and anaerobic 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

Landscapes

  • 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)
  • Treatment Of Water By Oxidation Or Reduction (AREA)
  • Purification Treatments By Anaerobic Or Anaerobic And Aerobic Bacteria Or Animals (AREA)
  • Physical Water Treatments (AREA)

Abstract

The processing method of the TNT production generation waste water that the present invention is introduced includes acid waste water and alkaline waste water mixing, separation of solid and liquid, the CO under ul-trasonic irradiation2The operations such as the reduction of pressurization ferrimanganic composite powder, anaerobism, the treatment of aerobic and biological filtering tower combined working, the waste water after treatment can stably reaching standard discharge.

Description

TNT produces the processing method of waste water
Technical field
A kind of processing method of the waste water produced the present invention relates to TNT productions.
Background technology
TNT is a kind of explosive, is dual-use product.The organic waste water pollutant COD concentration that its production is produced is high, into Divide complexity, intractability is big.If the waste water is not processed is directly discharged into environment, severe contamination will be caused to environment.TNT productions are produced Two kinds of waste water, one kind is acid waste water, and another kind is alkaline waste water.The processing method of current acid waste water is mainly biological place Reason.Due to containing nitrobenzene compounds in waste water, the toxicity to microorganism is very big, influences biological treatment effect, and waste water is difficult to Stably reaching standard is discharged.The processing method of current alkaline waste water is mainly burning method, due to containing a large amount of nitrobenzenes in waste water Compound, produces a large amount of NO during burningx, severe contamination atmospheric environment.Exploitation secondary pollution is small, the TNT lifes of energy stably reaching standard discharge The processing method for producing waste water has larger practical value.
The content of the invention
For the problem of current TNT production wastewater treatments method, the purpose of the present invention is that searching secondary pollution is small, can stablize The TNT of qualified discharge produces the processing method of waste water, it is characterised in that the acid waste water and alkaline waste water for producing TNT productions are mixed Close, mixed waste water enters sedimentation basin, and sedimentation basin has regulatory function concurrently.Sedimentation time is 1h~3h.Irregularly from sedimentation basin Middle extraction sludge is filtered.Filter cake makees dangerous disposition of solid waste.Filtrate returns to sedimentation basin.The supernatant waste water of sedimentation basin send Enter voltage-resistant reactor, cleaning ferrimanganic composite powder is added into reactor, under ul-trasonic irradiation and be passed through industrial CO2Reacted. The granularity of ferrimanganic composite powder is less than 180 mesh, and the content of every kind of metal is not less than 5% in ferrimanganic composite powder（The ferrimanganic that return is used is answered Close powder not limited）, every liter of waste water addition ferrimanganic composite powder 15g~40g.The stirring reaction time is under ul-trasonic irradiation 20min~50min.Reaction temperature is 25 DEG C~60 DEG C.CO2Pressure be 0.3MPa~1.0MPa.Every cubic metre of waste water input The power of ultrasonic wave is 2kW~8kW.Reacted waste water carries out solid-liquor separation, the ferrimanganic composite powder Returning reactor isolated. Waste water milk of lime or other alkaline matters after solid-liquor separation adjust its pH value to 7.0~8.5, subsequently into sedimentation basin precipitation 1h~3h, irregularly extracts sludge out from sedimentation basin and is filtered, and filter cake makees dangerous disposition of solid waste, and filtrate returns to precipitation Pond.The supernatant waste water of sedimentation basin send 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 to waste water after anaerobism.After Aerobic Process for Treatment Waste water enters sedimentation basin and precipitates 1h~3h, irregularly extracts sludge out from sedimentation basin and is filtered, and filter cake makees dangerous solid waste Thing is disposed, and filtrate returns to Aerobic Pond.The supernatant waste water of sedimentation basin send multi-layer biological filter tower to process.The filler of biological filtering tower combined working is activity Charcoal or porous ceramic grain, are 1.0m~2.0m per thickness degree, and gross thickness is 2m~6m.The dominant bacteria of biological filtering tower combined working is photosynthetic bacteria In red pseudomonas（Rhodopseudomonas）.The hydraulic load of biological filtering tower combined working is 30 m3/m2.d~90m3/m2.d.It is raw The standard water discharge discharge or reuse of thing filter tower.
The object of the present invention is achieved like this, after the acid waste water and alkaline waste water that TNT productions are produced mix, waste water meeting Generation acid precipitation reaction.The solid matter contained in itself in the sediment and waste water that are produced in order to avoid acid precipitation reaction is compound to ferrimanganic Powder reduction has a negative impact, and is also beneficial to unreacted ferrimanganic composite powder and recycles, therefore carries out separation of solid and liquid to it.It is useless After water enters ferrimanganic composite powder reduction reactor, the larger molecular organicses in waste water, particularly nitrobenzene matters pass through ferrimanganic Composite powder reduces the effect of the strong reduction free radical for producing and destroys, and substantially reduces toxicity of the waste water to microorganism, is follow-up life Change treatment creates favorable conditions.It is passed through pressure CO2Purpose be to maintain ferrimanganic composite powder to reduce suitable pH value（2.0~5.0）； The effect for being input into ultrasonic wave is the mass transport process of Accelerating reduction reaction.Waste water milk of lime or other alkaline matters after reduction are adjusted Its pH value is saved, to meet the requirement of follow-up anaerobic and aerobic process.Through the waste water of aforementioned processing in anaerobic processes, by micro- life The effect of thing, larger molecular organicses further become small organic molecule, are that more favorable condition is created in subsequent bio oxidation.Pass through Biological oxidation treatment, remaining most of organic matters are removed, while the pollutant such as removing to denitrogenate.Waste water finally enter activated carbon or Porous ceramic grain biological filtering tower combined working, in the presence of microorganism, particularly red pseudomonas, the pollution such as further organics removal and nitrogen Thing, it is ensured that the waste water stably reaching standard discharge after treatment.
Relative to existing method, the present invention is greatly reduced useless using ferrimanganic composite powder reduction destruction nitrobenzene matters Water greatly improves the biodegradability energy of waste water to the toxicity of microorganism；Relative to now widely used destruction nitrobenzene The method of material（Iron-carbon micro-electrolysis, metal powder reduction, Fenton methods etc.）, outstanding advantages of the invention are to use CO2Instead of mesh Preceding widely used sulfuric acid makees acidulant, does not introduce SO4 2-Ion, largely reducing generation H2The material base of S（TNT productions are useless Water contains S）, so as to significantly reduce H2The pollution of S, while also mitigating SO4 2-Suppression to microorganism during anaerobic and aerobic Effect, greatly improves the efficiency of biological treatment, it is ensured that the waste water energy stably reaching standard discharge after treatment；Pot is all had in TNT factories Stove, the CO that fuel combustion is produced2Waste gas can make full use of, and can not only reduce processing cost, and can reduce carbon emission, have Obvious economic benefit and environmental benefit.
Specific implementation method
Embodiment 1：1m is processed daily3TNT mixture manufacturing waste water（Composition： CODCr7100mg/L, nitrobenzene matters 835mg/ L、pH6.3）, reduced through separation of solid and liquid, ferrimanganic composite powder（20min、40℃、CO2Pressure 0.6MPa, every liter of waste water add ferrimanganic Composite powder 30g, the power of every cubic metre of waste water input ultrasonic wave are 4kW）, anaerobism（PH8.5,96h, 25 DEG C~35 DEG C）, it is aerobic （12h）And biological filtering tower combined working（Porous ceramic grain packing layer gross thickness 4m, hydraulic load 90m3/m2.d）The COD of water outlet after treatmentCrFor 87mg/L, nitrobenzene 1.7mg/L, BOD516mg/L, pH6.9, colourity 23.
Embodiment 2：5m is processed daily3Mixture manufacturing waste water（Composition： CODCr7100mg/L, nitrobenzene matters 835mg/L、pH6.3）, reduced through ferrimanganic composite powder（40min、25℃、CO2Pressure 0.3MPa, every liter of waste water add ferrimanganic to be combined Powder 15g, the power of every cubic metre of waste water input ultrasonic wave are 2kW）, 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 40m3/m2.d）The COD of water outlet after treatmentCrIt is 91mg/L, nitre Base benzene class 2.0mg/L, BOD518mg/L, pH7.0, colourity 27.

Claims (1)

1. a kind of TNT produces the processing method of the waste water for producing, it is characterised in that the acid waste water and alkalescence for producing TNT productions Waste water mixes, and mixed waste water enters sedimentation basin, and sedimentation basin has regulatory function concurrently, and the sedimentation time is 1h~3h, irregularly from Extract sludge in sedimentation basin out to be filtered, filter cake makees dangerous disposition of solid waste, filtrate returns to sedimentation basin, the supernatant of sedimentation basin Waste water sends into voltage-resistant reactor, and cleaning ferrimanganic composite powder is added into reactor, under ul-trasonic irradiation and is passed through industrial CO2Carry out Reaction, the granularity of ferrimanganic composite powder is less than 180 mesh, and the content of every kind of metal is not less than 5% in ferrimanganic composite powder, and every liter of waste water adds Enter ferrimanganic composite powder 15g~40g, the stirring reaction time is 20min~50min under ul-trasonic irradiation, and 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, reaction Waste water afterwards carries out solid-liquor separation, the ferrimanganic composite powder Returning reactor isolated, waste water milk of lime after solid-liquor separation or Other alkaline matters adjust its pH value to 7.0~8.5, and 1h~3h is precipitated subsequently into sedimentation basin, are irregularly taken out from sedimentation basin Go out sludge to be filtered, filter cake makees dangerous disposition of solid waste, filtrate returns to sedimentation basin, and the supernatant waste water of sedimentation basin send anaerobism 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 life Thing Aerobic Pond normal temperature treatment, the Aerobic Process for Treatment time is 6h~16h, and the waste water after Aerobic Process for Treatment enters sedimentation basin and precipitates 1h~3h, Irregularly extract sludge out from sedimentation basin to be filtered, filter cake makees dangerous disposition of solid waste, filtrate returns to Aerobic Pond, precipitation The supernatant waste water in pond send multi-layer biological filter tower to process, and the filler of biological filtering tower combined working is activated carbon or porous ceramic grain, and filler gross thickness is 2m~6m, the dominant bacteria of biological filtering tower combined working is the red pseudomonas in photosynthetic bacteria, and the hydraulic load of biological filtering tower combined working is 30 m3/ m2.d~90m3/m2.d, the standard water discharge discharge or reuse of biological filtering tower combined working.
CN201611254696.6A 2016-12-30 2016-12-30 TNT produces the processing method of waste water Pending CN106746246A (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 (6)

* 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 *
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 等: "《爱国卫生运动工作手册》", 31 July 1986, 湖南人民出版社 *
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