CN106587515A - Treatment method of TNT production wastewater - Google Patents
Treatment method of TNT production wastewater Download PDFInfo
- Publication number
- CN106587515A CN106587515A CN201611256928.1A CN201611256928A CN106587515A CN 106587515 A CN106587515 A CN 106587515A CN 201611256928 A CN201611256928 A CN 201611256928A CN 106587515 A CN106587515 A CN 106587515A
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- China
- Prior art keywords
- waste water
- sedimentation tank
- manganese powder
- reactor
- tnt
- 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.)
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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
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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
- C02F2101/10—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
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/34—Nature of the water, waste water, sewage or sludge to be treated from industrial activities not provided for in groups C02F2103/12 - C02F2103/32
- C02F2103/36—Nature of the water, waste water, sewage or sludge to be treated from industrial activities not provided for in groups C02F2103/12 - C02F2103/32 from the manufacture of organic compounds
-
- 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)
- Biological Treatment Of Waste Water (AREA)
- Treatment Of Water By Oxidation Or Reduction (AREA)
- Purification Treatments By Anaerobic Or Anaerobic And Aerobic Bacteria Or Animals (AREA)
Abstract
A treatment method of TNT production wastewater, disclosed in the invention, comprises the following processes: acidic wastewater and alkaline wastewater mixing, solid-liquid separation, CO2 pressurizing manganese powder reduction under the action of ultrasonic waves, and anaerobic, aerobic and biofilter treatment, and treated wastewater is stably discharged after meeting standards.
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 tank, and sedimentation tank has regulatory function concurrently.Sedimentation time is 1h~3h.Irregularly from sedimentation tank
Middle extraction sludge is filtered.Filter cake makees dangerous disposition of solid waste.Filtrate returns sedimentation tank.The supernatant waste water of sedimentation tank send
Enter voltage-resistant reactor, cleaning manganese powder is added into reactor, under ul-trasonic irradiation and be passed through industrial CO2Reacted.Manganese powder
Granularity is less than 180 mesh, and every liter of waste water adds manganese 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 ultrasound wave
Power is 2kW~8kW.Reacted waste water carries out solid-liquor separation, the manganese powder Returning reactor isolated.It is useless after solid-liquor separation
Water lime cream or other alkaline matters adjust its pH value to 7.0~8.5, precipitate 1h~3h subsequently into sedimentation tank, irregularly
Extract sludge out from sedimentation tank to be filtered, filter cake makees dangerous disposition of solid waste, filtrate returns sedimentation tank.Sedimentation tank 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 room temperature process, the Aerobic Process for Treatment time be 6h~16h.Waste water after Aerobic Process for Treatment enters sedimentation tank
Precipitation 1h~3h, irregularly extracts sludge out from sedimentation tank and is filtered, and filter cake makees dangerous disposition of solid waste, and filtrate returns
Aerobic Pond.The supernatant waste water of sedimentation tank 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 rhodopseudomonas 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.The precipitate produced in order to avoid acid precipitation reaction and the solid matter contained in itself in waste water are reduced to manganese powder
Have a negative impact, be also beneficial to unreacted manganese powder and recycle, therefore solid-liquid separation is carried out to it.Waste water enters manganese powder also
After former reactor, the larger molecular organicses in waste water, particularly nitrobenzene matters reduce the strong reduction for producing certainly by manganese powder
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 manganese powder to reduce suitable pH value(2.0~5.0);The effect of input ultrasound wave is Accelerating reduction reaction
Mass transport process.Waste water lime cream 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 rhodopseudomonas, it is ensured that the waste water stably reaching standard after process
Discharge.
Relative to existing method, the present invention greatly reduces waste water to micro- using manganese powder reduction destruction nitrobenzene matters
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 sulphuric 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 solid-liquid separation, manganese powder reduction(20min、40℃、CO2Pressure 0.6MPa, every liter of waste water add manganese powder 30g, every
The power of cubic meter waste water input ultrasound 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 84mg/L, nitrobenzene
1.5mg/L、BOD513mg/L, pH6.9, colourity 23.
Embodiment 2:5m is processed daily3Mixture manufacturing waste water(Composition: CODCr7100mg/L, nitrobenzene matters
835mg/L、pH6.3), the reduction of Jing manganese powders(40min、25℃、CO2Pressure 0.3MPa, every liter of waste water add manganese powder 15g, per cube
The power of rice waste water input ultrasound 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 88mg/L, nitrobenzene 1.7mg/
L、BOD514mg/L, pH7.0, colourity 28.
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 tank, and sedimentation tank has regulatory function concurrently, and the sedimentation time is 1h~3h, irregularly from
Extract sludge in sedimentation tank out to be filtered, filter cake makees dangerous disposition of solid waste, filtrate returns sedimentation tank, the supernatant of sedimentation tank
Waste water sends into voltage-resistant reactor, and cleaning manganese powder is added into reactor, under ul-trasonic irradiation and is passed through industrial CO2Reacted,
The granularity of manganese powder is less than 180 mesh, and every liter of waste water adds manganese 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 ultrasound wave is 2kW~8kW, and reacted waste water carries out solid-liquor separation, and the manganese powder Returning reactor isolated, liquid divides admittedly
Waste water lime cream or other alkaline matters after adjusts its pH value to 7.0~8.5, subsequently into sedimentation tank precipitation 1h~
3h, irregularly extracts sludge out from sedimentation tank and is filtered, and filter cake makees dangerous disposition of solid waste, and filtrate returns sedimentation tank,
The supernatant waste water of sedimentation tank 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 room 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 tank, irregularly sludge is extracted out from sedimentation tank and is filtered, filter cake is made at dangerous solid waste
Put, filtrate returns Aerobic Pond, the supernatant waste water of sedimentation tank 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 rhodopseudomonas 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.
Priority Applications (1)
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CN201611256928.1A CN106587515A (en) | 2016-12-30 | 2016-12-30 | Treatment method of TNT production wastewater |
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CN201611256928.1A CN106587515A (en) | 2016-12-30 | 2016-12-30 | Treatment method of TNT production wastewater |
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CN106587515A true CN106587515A (en) | 2017-04-26 |
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CN201611256928.1A Pending CN106587515A (en) | 2016-12-30 | 2016-12-30 | Treatment method of TNT 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 CN201611256928.1A patent/CN106587515A/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 (7)
Title |
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何晓文 等主编: "《水体污染处理新技术及应用》", 31 March 2013, 中国科学技术大学出版社 * |
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 等编: "《爱国卫生运动工作手册》", 31 July 1986, 湖南人民出版社出版 * |
蒋克彬 主编: "《污水处理工艺与应用》", 31 March 2014, 中国石化出版社 * |
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: 20170426 |