CN106746266A - TNT produces the processing method of waste water - Google Patents
TNT produces the processing method of waste water Download PDFInfo
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- CN106746266A CN106746266A CN201611255665.2A CN201611255665A CN106746266A CN 106746266 A CN106746266 A CN 106746266A CN 201611255665 A CN201611255665 A CN 201611255665A CN 106746266 A CN106746266 A CN 106746266A
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- waste water
- sedimentation basin
- composite powder
- solid
- reactor
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Classifications
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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
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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
- C02F1/58—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
- 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
- C02F2101/10—Inorganic compounds
- C02F2101/16—Nitrogen compounds, e.g. ammonia
-
- 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
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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)
- Treatment Of Water By Oxidation Or Reduction (AREA)
- Purification Treatments By Anaerobic Or Anaerobic And Aerobic Bacteria Or Animals (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 MnZn composite powder, anaerobism, the treatment of aerobic and biological filtering tower combined working, the waste water after treatment can stably reaching standard discharge.
Description
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 MnZn composite powder is added into reactor, under ul-trasonic irradiation and be passed through industrial CO2Reacted.
The granularity of MnZn composite powder is less than 180 mesh, and the content of every kind of metal is not less than 5% in MnZn composite powder(The MnZn that return is used is answered
Close powder not limited), every liter of waste water addition MnZn 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 MnZn 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 MnZn
Powder reduction has a negative impact, and is also beneficial to unreacted MnZn composite powder and recycles, therefore carries out separation of solid and liquid to it.It is useless
After water enters MnZn composite powder reduction reactor, the larger molecular organicses in waste water, particularly nitrobenzene matters pass through MnZn
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 MnZn 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 MnZn 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, MnZn composite powder(20min、40℃、CO2Pressure 0.6MPa, every liter of waste water add MnZn
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
43mg/L, nitrobenzene 0.7mg/L, BOD58mg/L, pH6.9, colourity 11.
Embodiment 2:5m is processed daily3Mixture manufacturing waste water(Composition: CODCr7100mg/L, nitrobenzene matters
835mg/L、pH6.3), reduced through MnZn composite powder(40min、25℃、CO2Pressure 0.3MPa, every liter of waste water add MnZn 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 46mg/L, nitre
Base benzene class 0.9mg/L, BOD510mg/L, pH7.0, colourity 13.
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 alkali for producing TNT productions
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 to sedimentation basin, sedimentation basin it is upper
Stripping water sends into voltage-resistant reactor, and cleaning MnZn composite powder is added into reactor, under ul-trasonic irradiation and is passed through industrial CO2Enter
Row reaction, the granularity of MnZn composite powder is less than 180 mesh, and the content of every kind of metal is not less than 5%, every liter of waste water in MnZn composite powder
MnZn composite powder 15g~40g is added, 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, instead
Waste water after answering carries out solid-liquor separation, the MnZn composite powder Returning reactor isolated, the waste water milk of lime after solid-liquor separation
Or other alkaline matters adjust its pH value to 7.0~8.5,1h~3h is precipitated subsequently into sedimentation basin, irregularly from sedimentation basin
Extract sludge out 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 to be detested
Oxygen 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
Biology aerobic pond normal temperature treatment, the Aerobic Process for Treatment time is 6h~16h, the waste water after Aerobic Process for Treatment enter 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 Aerobic 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 total thickness
It is 2m~6m to spend, and 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.
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CN201611255665.2A CN106746266A (en) | 2016-12-30 | 2016-12-30 | TNT produces the processing method of waste water |
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CN201611255665.2A CN106746266A (en) | 2016-12-30 | 2016-12-30 | TNT produces the processing method of waste water |
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CN201611255665.2A Pending CN106746266A (en) | 2016-12-30 | 2016-12-30 | TNT produces the processing method of waste water |
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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 CN201611255665.2A patent/CN106746266A/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 (6)
Title |
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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 * |
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 * |
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陈武 等主编: "《环境污染治理的电化学技术》", 31 March 2013 * |
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Application publication date: 20170531 |