CN106673355A - Treatment method of TNT (Trinitrotoluene) production wastewater - Google Patents
Treatment method of TNT (Trinitrotoluene) production wastewater Download PDFInfo
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- CN106673355A CN106673355A CN201611259108.8A CN201611259108A CN106673355A CN 106673355 A CN106673355 A CN 106673355A CN 201611259108 A CN201611259108 A CN 201611259108A CN 106673355 A CN106673355 A CN 106673355A
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- waste water
- sedimentation basin
- composite powder
- zinc composite
- tnt
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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
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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
- 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
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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
- 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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- 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)
- Treatment Of Water By Oxidation Or Reduction (AREA)
- Purification Treatments By Anaerobic Or Anaerobic And Aerobic Bacteria Or Animals (AREA)
Abstract
The invention discloses a treatment method of TNT (Trinitrotoluene) production wastewater. The treatment method comprises the following working procedures of acid wastewater and alkaline wastewater mixing, solid-liquid separation, pressurization on Fe-Mn-Zn composite powder by utilizing CO2 under an ultrasonic action for reduction, anaerobic, aerobiotic and biofilter treatment and the like. Treated wastewater can be subjected to stable and standardized emission.
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 ferrimanganic zinc composite powder is added into reactor, under ul-trasonic irradiation and be passed through industrial CO2Carry out anti-
Should.The granularity of ferrimanganic zinc composite powder is less than 180 mesh, and the content of every kind of metal is not less than 5% in ferrimanganic zinc composite powder（Return is used
Ferrimanganic zinc composite powder it is not limited）, every liter of waste water addition ferrimanganic zinc composite powder 15g~40g.Stirred under ul-trasonic irradiation
Reaction time is 20min~50min.Reaction temperature is 25 DEG C~60 DEG C.CO2Pressure be 0.3MPa~1.0MPa.Every cube
The power of rice waste water input ultrasonic wave is 2kW~8kW.Reacted waste water carries out solid-liquor separation, and the ferrimanganic zinc isolated is combined
Powder Returning reactor.Waste water milk of lime or other alkaline matters after solid-liquor separation adjust its pH value to 7.0~8.5, then
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 to sedimentation basin.The supernatant waste water of sedimentation basin send anaerobic reactor.Waste water stops 24h~120h in anaerobic reactor,
Anaerobism temperature is 25 DEG C~55 DEG C.Waste water after anaerobism into the treatment of biology aerobic pond normal temperature, the Aerobic Process for Treatment time be 6h~
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, and filters
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.It is biological
The filler of 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 it is excellent
Gesture strain 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 or reuse of biological filtering tower combined working.
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 multiple to ferrimanganic zinc
Close powder reduction to have a negative impact, be also beneficial to unreacted ferrimanganic zinc composite powder and recycle, therefore solid-liquid point is carried out to it
From.After waste water enters ferrimanganic zinc composite powder reduction reactor, 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 ferrimanganic zinc composite powder is produced and destroy, substantially reduce toxicity of the waste water to microorganism,
For subsequent biochemical treatment creates favorable conditions.It is passed through pressure CO2Purpose be to maintain ferrimanganic zinc 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 after reduction or its
His alkaline matter adjusts its pH value, to meet the requirement of follow-up anaerobic and aerobic process.Through the waste water of aforementioned processing in anaerobism mistake
Cheng Zhong, by the effect of microorganism, larger molecular organicses further become small organic molecule, are that subsequent bio oxidation is created more
Advantage.Processed by biological oxidation, remaining most of organic matters are removed, while the pollutant such as removing to denitrogenate.Waste water is most
Enter activated carbon or porous ceramic grain biological filtering tower combined working afterwards, in the presence of microorganism, particularly red pseudomonas, further removal has
The pollutant such as machine thing and nitrogen, it is ensured that the waste water stably reaching standard discharge after treatment.
Relative to existing method, the present invention is greatly reduced using ferrimanganic zinc composite powder reduction destruction nitrobenzene matters
Waste water greatly improves the biodegradability energy of waste water to the toxicity of microorganism；Relative to now widely used destruction nitrobenzene
The method of class material（Iron-carbon micro-electrolysis, metal powder reduction, Fenton methods etc.）, outstanding advantages of the invention are to use CO2Instead of
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 treatment；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）, reduced through separation of solid and liquid, ferrimanganic zinc composite powder（20min、40℃、CO2Pressure 0.6MPa, every liter of waste water add iron
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 treatmentCr
It is 42mg/L, nitrobenzene 0.7mg/L, BOD58mg/L, pH6.9, colourity 10.
Embodiment 2：5m is processed daily3Mixture manufacturing waste water（Composition： CODCr7100mg/L, nitrobenzene matters
835mg/L、pH6.3）, reduced through ferrimanganic zinc composite powder（40min、25℃、CO2Pressure 0.3MPa, every liter of waste water add ferrimanganic zinc
Composite 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 45mg/
L, nitrobenzene 0.8mg/L, BOD510mg/L, pH7.0, colourity 12.
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 ferrimanganic zinc composite powder is added into reactor, under ul-trasonic irradiation and is passed through industrial CO2
Reacted, the granularity of ferrimanganic zinc composite powder is less than 180 mesh, and the content of every kind of metal is not less than 5% in ferrimanganic zinc composite powder, often
Rise waste water and add ferrimanganic zinc composite powder 15g~40g, the stirring reaction time is 20min~50min, reaction under ul-trasonic irradiation
Temperature be 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, reacted waste water carries out solid-liquor separation, the ferrimanganic zinc composite powder Returning reactor isolated, 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 to sedimentation basin, sedimentation basin it is upper
Stripping water send anaerobic reactor, waste water to stop 24h~120h in anaerobic reactor, and anaerobism temperature is 25 DEG C~55 DEG C, after anaerobism
Waste water into the treatment of biology aerobic pond normal temperature, the Aerobic Process for Treatment time is 6h~16h, and the 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, and the filler of biological filtering tower combined working is activated carbon or porous ceramic grain, is filled out
Material gross thickness is 2m~6m, and the dominant bacteria of biological filtering tower combined working is the red pseudomonas in photosynthetic bacteria, and the waterpower of biological filtering tower combined working is born
Lotus is 30 m3/m2.d~90m3/m2.d, the standard water discharge discharge or reuse of biological filtering tower combined working.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611259108.8A CN106673355A (en) | 2016-12-30 | 2016-12-30 | Treatment method of TNT (Trinitrotoluene) production wastewater |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611259108.8A CN106673355A (en) | 2016-12-30 | 2016-12-30 | Treatment method of TNT (Trinitrotoluene) production wastewater |
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| CN106673355A true CN106673355A (en) | 2017-05-17 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201611259108.8A Pending CN106673355A (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 CN201611259108.8A patent/CN106673355A/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)
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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 * |
| 郑西来: "《地下水污染控制》", 31 July 2009 * |
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