CN106630441A - Treatment method for TNT production waste water - Google Patents

Treatment method for TNT production waste water Download PDF

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Publication number
CN106630441A
CN106630441A CN201611256929.6A CN201611256929A CN106630441A CN 106630441 A CN106630441 A CN 106630441A CN 201611256929 A CN201611256929 A CN 201611256929A CN 106630441 A CN106630441 A CN 106630441A
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CN
China
Prior art keywords
waste water
sedimentation basin
aluminium powder
tnt
reactor
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Pending
Application number
CN201611256929.6A
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Chinese (zh)
Inventor
龙炳清
邓其娟
聂付江
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Sichuan Normal University
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Sichuan Normal University
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Priority to CN201611256929.6A priority Critical patent/CN106630441A/en
Publication of CN106630441A publication Critical patent/CN106630441A/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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/34—Chemical or biological purification of waste gases
    • B01D53/46—Removing components of defined structure
    • B01D53/62—Carbon oxides
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/34—Chemical or biological purification of waste gases
    • B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
    • B01D53/77—Liquid phase processes
    • B01D53/78—Liquid phase processes with gas-liquid contact
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2257/00—Components to be removed
    • B01D2257/50—Carbon oxides
    • B01D2257/504—Carbon dioxide
    • 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
    • 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
    • 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
    • C02F2101/34—Organic compounds containing oxygen
    • 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
    • C02F2305/00—Use of specific compounds during water treatment
    • C02F2305/02—Specific form of oxidant
    • 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
    • C02F3/02—Aerobic processes
    • C02F3/06—Aerobic processes using submerged filters
    • 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
    • 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
    • Y02C—CAPTURE, STORAGE, SEQUESTRATION OR DISPOSAL OF GREENHOUSE GASES [GHG]
    • Y02C20/00—Capture or disposal of greenhouse gases
    • Y02C20/40—Capture or disposal of greenhouse gases of CO2

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Environmental & Geological Engineering (AREA)
  • General Chemical & Material Sciences (AREA)
  • Biomedical Technology (AREA)
  • Analytical Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Hydrology & Water Resources (AREA)
  • Water Supply & Treatment (AREA)
  • Organic Chemistry (AREA)
  • Water Treatment By Electricity Or Magnetism (AREA)

Abstract

The invention provides a treatment method for TNT production waste water, which includes the steps of: mixing acidic waste water and alkaline waste water, performing solid-liquid separation, performing CO2-pressurized aluminum powder reduction under effect of supersonic wave, and performing anaerobic treatment, aerobic treatment and bio-filtering column treatment. The treated water reaches the standard and can be stably discharged.

Description

TNT produces the processing method of waste water
Technical field
The present invention relates to a kind of processing method of the waste water of TNT production generations.
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.At present the processing method of acid waste water is mainly at biology Reason.It is very big to the toxicity of microorganism due to containing nitrobenzene compounds in waste water, affect biological treatment effect, waste water to be difficult to Stably reaching standard is discharged.At present the processing method of 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, major polluting atmosphere environment.Exploitation secondary pollution is little, 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 little, can stablize The TNT of qualified discharge produces the processing method of waste water, it is characterised in that mix acid waste water and alkaline waste water that TNT produces generation 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 sedimentation basin.The supernatant waste water of sedimentation basin send Enter voltage-resistant reactor, cleaning aluminium powder is added into reactor, under ul-trasonic irradiation and be passed through industrial CO2Reacted.Aluminium powder Granularity is less than 180 mesh, and every liter of waste water adds aluminium powder 15g～40g.Under ul-trasonic irradiation the stirring reaction time be 20min～ 50min.Reaction temperature is 25 DEG C～60 DEG C.CO2Pressure be 0.3MPa～1.0MPa.Every cubic metre of waste water is input into ultrasonic wave Power is 2kW～8kW.Reacted waste water carries out solid-liquor separation, the aluminium powder Returning reactor isolated.It is useless after solid-liquor separation Water milk of lime or other alkaline matters adjust its pH value to 7.0～8.5, precipitate 1h～3h subsequently into sedimentation basin, irregularly Extract sludge out from sedimentation basin to be filtered, filter cake makees dangerous disposition of solid waste, filtrate returns sedimentation basin.Sedimentation basin it is upper Stripping water send anaerobic reactor.Waste water stops 24h～120h in anaerobic reactor, and anaerobism temperature is 25 DEG C～55 DEG C.After anaerobism Waste water into biology aerobic pond normal temperature process, the Aerobic Process for Treatment time be 6h～16h.Waste water after Aerobic Process for Treatment enters 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 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 activated carbon or porous ceramic grain, often Thickness degree is 1.0m～2.0m, and gross thickness is 2m～6m.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 30 m3/m2.d～90m3/m2.d.The water outlet of biological filtering tower combined working reaches Mark discharge or reuse.
The object of the present invention is achieved like this, after the acid waste water and alkaline waste water that TNT productions are produced mixes, waste water meeting Generation acid precipitation reaction.In order to avoid the solid matter contained in itself in the sediment and waste water of acid precipitation reaction generation is to aluminum reduction Have a negative impact, be also beneficial to unreacted aluminium powder and recycle, therefore separation of solid and liquid is carried out to it.Waste water enters aluminium powder also After former reactor, the strong reduction that the larger molecular organicses in waste water, particularly nitrobenzene matters are produced by aluminum reduction from Destroyed by the effect of base, substantially reduce toxicity of the waste water to microorganism, be that subsequent biochemical process creates favorable conditions.It is passed through pressure Power CO2Purpose be to maintain the suitable pH value of aluminum reduction（2.0～5.0）；The effect of input ultrasonic wave is Accelerating reduction reaction Mass transport process.Waste water milk of lime or other alkaline matters after reduction adjusts its pH value, to meet follow-up anaerobic and aerobic The requirement of process.In anaerobic processes, by the effect of microorganism, larger molecular organicses further become the premenstrual waste water for stating process It is that more favorable condition is created in subsequent bio oxidation into small organic molecule.It is remaining most of organic by biological oxidation process Thing is removed, while the pollutant such as removing to denitrogenate.Waste water finally enters activated carbon or porous ceramic grain biological filtering tower combined working, special in microorganism It is not the pollutant such as further organics removal and nitrogen in the presence of red pseudomonas, it is ensured that the waste water stably reaching standard after process Discharge.
Relative to existing method, the present invention destroys nitrobenzene matters, greatly reduces waste water to micro- using aluminum reduction Biological toxicity, and greatly improve the biodegradability energy of waste water；Relative to now widely used destruction nitrobenzene matters Method（Iron-carbon micro-electrolysis, metal powder reduction, Fenton methods etc.）, the outstanding advantages of the present invention are to adopt CO2Replace at present extensively The sulfuric acid for using makees acidulant, does not introduce SO4 2-Ion, largely reducing generation H2The material base of S（TNT production waste water contains S）, so as to significantly reduce H2The pollution of S, while also mitigating SO4 2-Suppression to microorganism during anaerobic and aerobic is made With greatly improving the efficiency of biological treatment, it is ensured that the waste water energy stably reaching standard discharge after process；Boiler is all had in TNT factories, 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, with bright Aobvious 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）, Jing separation of solid and liquid, aluminum reduction（20min、40℃、CO2Pressure 0.6MPa, every liter of waste water add aluminium powder 30g, every The power of cubic meter waste water input ultrasonic wave is 4kW）, anaerobism（PH8.5,96h, 25 DEG C～35 DEG C）, it is aerobic（12h）And biological filter Tower（Porous ceramic grain packing layer gross thickness 4m, hydraulic load 90m3/m2.d）The COD of water outlet after processCrFor 61mg/L, nitrobenzene 1.0mg/L、BOD59mg/L, pH6.9, colourity 18.
Embodiment 2：5m is processed daily3Mixture manufacturing waste water（Composition： CODCr7100mg/L, nitrobenzene matters 835mg/L、pH6.3）, Jing aluminum reductions（40min、25℃、CO2Pressure 0.3MPa, every liter of waste water add aluminium powder 15g, per cube The power of rice waste water input ultrasonic wave is 2kW）, anaerobism（PH7.0,24h, 35 DEG C～55 DEG C）, it is aerobic（6h）And biological filtering tower combined working（It is living Property carbon filling material layer gross thickness 2m, hydraulic load 40m3/m2.d）The COD of water outlet after processCrFor 68mg/L, nitrobenzene 1.1mg/ L、BOD510mg/L, pH7.0, colourity 20.

Claims (1)

1. a kind of TNT produces the processing method of the waste water for producing, it is characterised in that TNT is produced the acid waste water and alkalescence for producing 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 sedimentation basin, the supernatant of sedimentation basin 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 15g～40g, and 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, the input of every cubic metre of waste water The power of ultrasonic wave is 2kW～8kW, and reacted waste water carries out solid-liquor separation, and the aluminium powder Returning reactor isolated, liquid divides admittedly Waste water milk of lime or other alkaline matters after adjusts 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 sedimentation basin, The supernatant waste water of sedimentation basin send anaerobic reactor, waste water to stop 24h～120h in anaerobic reactor, and anaerobism temperature is 25 DEG C～55 DEG C, the waste water after anaerobism into biology aerobic pond normal temperature process, the Aerobic Process for Treatment time be 6h～16h, the waste water after Aerobic Process for Treatment 1h～3h is precipitated into sedimentation basin, irregularly sludge is extracted out from sedimentation basin and is filtered, filter cake is made at dangerous solid waste Put, filtrate returns 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 be activated carbon or Porous ceramic grain, filler gross thickness is 2m～6m, and the dominant bacteria of biological filtering tower combined working is the red pseudomonas in photosynthetic bacteria, biological filter The hydraulic load of tower is 30 m3/m2.d～90m3/m2.d, the standard water discharge discharge or reuse of biological filtering tower combined working.
CN201611256929.6A 2016-12-30 2016-12-30 Treatment method for TNT production waste water Pending CN106630441A (en)

Priority Applications (1)

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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 *
张修正: "《化工厂电气手册》", 31 December 1994 *
徐根良 主编: "《废水控制及治理工程》", 30 June 1999 *
施悦 等: "《环境氧化还原处理技术原理与应用》", 31 August 2013 *
湖南省爱国卫生运动委员会办公室 等编: "《爱国卫生运动工作手册》", 31 July 1986 *
郑西来: "《地下水污染控制》", 31 July 2009 *

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Application publication date: 20170510