CN106630432A - Treatment method of TNT (trinitrotoluene) production wastewater - Google Patents
Treatment method of TNT (trinitrotoluene) production wastewater Download PDFInfo
- Publication number
- CN106630432A CN106630432A CN201611254707.0A CN201611254707A CN106630432A CN 106630432 A CN106630432 A CN 106630432A CN 201611254707 A CN201611254707 A CN 201611254707A CN 106630432 A CN106630432 A CN 106630432A
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- Prior art keywords
- waste water
- sedimentation basin
- composite powder
- zinc composite
- iron aluminium
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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
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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
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
- C02F1/5236—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using inorganic agents
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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
- 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
- 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
- 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
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- 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)
- Water Treatment By Electricity Or Magnetism (AREA)
- Purification Treatments By Anaerobic Or Anaerobic And Aerobic Bacteria Or Animals (AREA)
Abstract
The invention provides a treatment method of TNT (trinitrotoluene) production wastewater. The method comprises the following work procedures of acid wastewater and basic wastewater mixing, solid-liquid separation, CO2 pressurized iron-aluminum-zinc composite powder reduction, anaerobic treatment, aerobic treatment and biological filtration tower treatment and the like. The treated wastewater can be stably discharged in a standard reaching way.
Description
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 iron aluminium zinc composite powder is added into reactor, and be passed through industrial CO2Reacted, iron aluminium zinc composite powder
Granularity be less than 180 mesh, the content of every kind of metal is not less than 5% in iron aluminium zinc composite powder(The iron aluminium zinc composite powder that return is used is not
It is so limited), every liter of waste water addition iron aluminium zinc composite powder 15g~40g, the stirring reaction time is 2h~4h, and reaction temperature is 25
DEG C~60 DEG C, CO2Pressure be 0.3MPa~1.0MPa.Reacted waste water carries out solid-liquor separation, and the iron aluminium zinc isolated is answered
Close powder Returning reactor.Waste water milk of lime or other alkaline matters after solid-liquor separation adjusts its pH value to 7.0~8.5, so
Sedimentation basin being entered afterwards and precipitating 1h~3h, irregularly extracted sludge out from sedimentation basin and filtered, filter cake makees dangerous solid waste
Dispose, filtrate returns sedimentation basin.The supernatant waste water of sedimentation basin send anaerobic reactor.Waste water anaerobic reactor stop 24h~
120h, anaerobism temperature is 25 DEG C~55 DEG C.Into the process of biology aerobic pond normal temperature, the Aerobic Process for Treatment time is 6h to waste water after anaerobism
~16h.Waste water after Aerobic Process for Treatment enters sedimentation basin and precipitates 1h~3h, irregularly extracts sludge out from sedimentation basin and is filtered,
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.It is raw
The filler of thing filter tower is activated carbon or porous ceramic grain, is 1.0m~2.0m per thickness degree, and gross thickness is 2m~6m.Biological filtering tower combined working
Dominant bacteria 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 standard water discharge discharge of biological filtering tower combined working 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.The sediment produced in order to avoid acid precipitation reaction and the solid matter contained in itself in waste water are multiple to iron aluminium zinc
Close powder reduction to have a negative impact, be also beneficial to unreacted iron aluminium zinc composite powder and recycle, therefore solid-liquid point is carried out to it
From.Waste water is entered after iron aluminium zinc composite powder reduction reactor, and the larger molecular organicses in waste water, particularly nitrobenzene matters lead to
Cross the effect of the strong reduction free radical that the reduction of iron aluminium zinc composite powder is produced and destroy, substantially reduce toxicity of the waste water to microorganism,
Create favorable conditions for subsequent biochemical process.It is passed through pressure CO2Purpose be to maintain iron aluminium zinc composite powder to reduce suitable pH value
(2.0~5.0), the 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 is greatly reduced using iron aluminium zinc composite powder reduction destruction nitrobenzene matters
Toxicity of the waste water to microorganism, and greatly improve the biodegradability energy of waste water;Relative to now widely used destruction nitrobenzene
The method of class material(Iron-carbon micro-electrolysis, metal powder reduction, Fenton methods etc.), the outstanding advantages of the present invention are to adopt CO2Replace
Now widely used sulfuric acid makees acidulant, does not introduce SO4 2-Ion, largely reducing generation H2The material base of S(TNT is produced
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
Make and use, greatly improve the efficiency of biological treatment, it is ensured that the waste water energy stably reaching standard discharge after process;TNT factories all have
Boiler, 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, tool
There are 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), Jing separation of solid and liquid, the reduction of iron aluminium zinc composite powder(2h、40℃、CO2Pressure 0.6MPa, every liter of waste water add iron aluminium zinc
Composite powder 30g), 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 total thickness
Degree 4m, hydraulic load 90m3/m2.d)The COD of water outlet after processCrFor 47mg/L, nitrobenzene 0.6mg/L, BOD58mg/L、
PH7.0, colourity 13.
Embodiment 2:5m is processed daily3Mixture manufacturing waste water(Composition: CODCr7100mg/L, nitrobenzene matters
835mg/L、pH6.3), the reduction of Jing iron aluminium zinc composite powder(4h、25℃、CO2Pressure 0.3MPa, every liter of waste water add iron aluminium zinc to answer
Close powder 15g), 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 processCrFor 51mg/L, nitrobenzene 0.8mg/L, BOD510mg/L, pH6.9, color
Degree 17.
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 alkali for producing
Property waste water mixing, mixed waste water enters sedimentation basin, and sedimentation basin has regulatory function concurrently, and the sedimentation time is 1h~3h, 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 sends into voltage-resistant reactor, and cleaning iron aluminium zinc composite powder is added into reactor, and is passed through industrial CO2Reacted, iron aluminium
The granularity of zinc composite powder is less than 180 mesh, and the content of every kind of metal is not less than 5% in iron aluminium zinc composite powder, and every liter of waste water adds iron aluminium
Zinc composite powder 15g~40g, the stirring reaction time is 2h~4h, and reaction temperature is 25 DEG C~60 DEG C, CO2Pressure be 0.3MPa
~1.0MPa, reacted waste water carries out solid-liquor separation, the iron aluminium zinc composite powder Returning reactor isolated, after solid-liquor separation
Waste water milk of lime or other alkaline matters adjust its pH value to 7.0~8.5, and subsequently into sedimentation basin 1h~3h is precipitated, indefinite
Phase extracts sludge out from sedimentation basin and is filtered, and filter cake makees dangerous disposition of solid waste, and filtrate returns sedimentation basin, sedimentation basin
Supernatant waste water send anaerobic reactor, waste water to stop 24h~120h in anaerobic reactor, and anaerobism temperature is 25 DEG C~55 DEG C, anaerobism
Waste water afterwards is 6h~16h into the process of biology aerobic pond normal temperature, Aerobic Process for Treatment time, and the waste water after Aerobic Process for Treatment enters precipitation
1h~3h is precipitated in pond, is irregularly extracted sludge out from sedimentation basin and is filtered, and filter cake makees dangerous disposition of solid waste, and filtrate is returned
Aerobic Pond is returned, 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,
Filler gross thickness is 2m~6m, and the dominant bacteria of biological filtering tower combined working is the red pseudomonas in photosynthetic bacteria, the waterpower of biological filtering tower combined working
Load is 30 m3/m2.d~90m3/m2.d, the standard water discharge discharge or reuse of biological filtering tower combined working.
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CN201611254707.0A CN106630432A (en) | 2016-12-30 | 2016-12-30 | Treatment method of TNT (trinitrotoluene) production wastewater |
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CN201611254707.0A CN106630432A (en) | 2016-12-30 | 2016-12-30 | Treatment method of TNT (trinitrotoluene) production wastewater |
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CN201611254707.0A Pending CN106630432A (en) | 2016-12-30 | 2016-12-30 | Treatment method of TNT (trinitrotoluene) production wastewater |
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Citations (1)
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 |
-
2016
- 2016-12-30 CN CN201611254707.0A patent/CN106630432A/en active Pending
Patent Citations (1)
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 (5)
Title |
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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 * |
郑西来: "《地下水污染控制》", 31 July 2009, 华中科技大学出版社 * |
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Application publication date: 20170510 |