CN106630458A - Method for treating phenol-cyanogen waste water generated by gas producer - Google Patents
Method for treating phenol-cyanogen waste water generated by gas producer Download PDFInfo
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- CN106630458A CN106630458A CN201611258961.8A CN201611258961A CN106630458A CN 106630458 A CN106630458 A CN 106630458A CN 201611258961 A CN201611258961 A CN 201611258961A CN 106630458 A CN106630458 A CN 106630458A
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- waste water
- sedimentation tank
- composite powder
- biological
- ferrimanganic composite
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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
- C02F1/34—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
- C02F1/66—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
- C02F2101/10—Inorganic compounds
- C02F2101/16—Nitrogen compounds, e.g. ammonia
- C02F2101/18—Cyanides
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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
-
- 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
- C02F2101/32—Hydrocarbons, e.g. oil
- C02F2101/322—Volatile compounds, e.g. benzene
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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
- C02F2101/34—Organic compounds containing oxygen
- C02F2101/345—Phenols
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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
- C02F2209/00—Controlling or monitoring parameters in water treatment
- C02F2209/08—Chemical Oxygen Demand [COD]; Biological Oxygen Demand [BOD]
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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
- C02F2209/00—Controlling or monitoring parameters in water treatment
- C02F2209/16—Total nitrogen (tkN-N)
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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
- C02F3/02—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
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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
- C02F3/34—Biological treatment of water, waste water, or sewage characterised by the microorganisms used
Abstract
The invention discloses a method for treating phenol-cyanogen waste water generated by a gas producer. The method comprises the treatment procedures of filtering, CO2 pressurizing, iron-manganese composite powder reducing, precipitating, hydrolytic acidification, aerobiotic treatment and biological tower treatment under the action of ultrasonic waves and the like. The treated waste water can be stably drained after reaching the standard.
Description
Technical field
The present invention relates to a kind of processing method of the wastewater containing phenol and cyanide of gas generator generation.
Background technology
Coal gas is a class widely used fuel in production and life, and it is to be by one in gas generator by coal
Row chemical reaction and be obtained.During cooled coal gas is prepared, wastewater containing phenol and cyanide is inevitably resulted from(Waste water containing phenol and cyanogen),
If the waste water is directly discharged into environment and will cause severe contamination to environment.At present the processing method of wastewater containing phenol and cyanide mainly has biochemistry
Processing method, independent burning method, controlling the water circulation coal slurry facture and it is mixed into drying tower Feedstock treating method.The process of biochemistry treatment method
Effect is unstable, relatively costly;Although individually very well, processing cost is very high for burning method treatment effect;Controlling the water circulation coal slurry facture
Coal slurry industry investment it is big, many producers are without this system, it is difficult to implement.It is mixed into drying tower Feedstock treating method, low-temperature zone
A large amount of evaporations, thus make considerable part phenol and cyanogen have neither part nor lot in chemical reaction and enter air.Development cost is low, high treating effect
The processing method of the wastewater containing phenol and cyanide that gas generator is produced has larger practical value.
The content of the invention
The problem of the processing method of the wastewater containing phenol and cyanide produced for current gas generator, the purpose of the present invention is at searching
Reason low cost, the processing method of the wastewater containing phenol and cyanide of the gas generator generation of high treating effect, it is characterised in that occur coal gas
The wastewater containing phenol and cyanide that stove is produced is filtered, the feeding voltage-resistant reactor after filtration, and cleaning ferrimanganic composite powder is added into reactor, is led to
Enter industrial CO2And reacted under ul-trasonic irradiation.The granularity of ferrimanganic composite powder is less than 180 mesh, every kind of in ferrimanganic composite powder
The content of metal is not less than 5%(The ferrimanganic composite powder that return is used is not limited), every liter of waste water add ferrimanganic composite powder 5g~
10g.The stirring reaction time is 10min~40min under ul-trasonic irradiation, and temperature is 25 DEG C~60 DEG C.Every cubic metre of waste water is defeated
The ultrasonic power for entering is 2kW~8kW. CO2Pressure be 0.1MPa~1.0MPa.Reacted waste water carries out solid-liquor separation,
The ferrimanganic composite powder Returning reactor isolated.Waste water lime cream or other alkaline matters after solid-liquor separation adjusts its pH value
To 6~8,1h~3h is precipitated subsequently into sedimentation tank, irregularly extract sludge out from sedimentation tank and filtered, filter cake is made dangerous solid
Body waste treatment, filtrate returns sedimentation tank.The supernatant of sedimentation tank send hydrolysis acidification pool.Waste water room temperature in hydrolysis acidification pool
Stop 8h~24h.Into the process of biology aerobic pond room temperature, the Aerobic Process for Treatment time is 8h~12h to waste water after hydrolysis acidification.It is aerobic
Waste water after process enters sedimentation tank and precipitates 1h~3h, irregularly extracts sludge out from sedimentation tank and is filtered, and filter cake is made dangerous
Disposition of solid waste, filtrate returns Aerobic Pond.The supernatant waste water of sedimentation tank send multi-layer biological filter tower to process.Biological filtering tower combined working is filled out
Expect for activated carbon or porous ceramic grain, be 1m~2m per thickness degree, gross thickness is 2m~6m.The dominant bacteria of biological filtering tower combined working is photosynthetic
Rhodopseudomonas in antibacterial(Rhodopseudomonas).The hydraulic load of biological filtering tower combined working is 30 m3/m2.d~100m3/
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:Waste water enters pressure ferrimanganic composite powder reduction reactor, big in waste water
Molecular organic, particularly persistence organic pollutant(Organic substance containing phenyl ring, heterocycle)Produced by the reduction of ferrimanganic composite powder
Strong reduction free radical effect and destroy, be subsequent biochemical process create favorable conditions.It is passed through pressure CO2Purpose be maintain
Ferrimanganic composite powder reduces suitable pH value(2.0~5.0);The effect of input ultrasound wave is to speed up the mass transport process of reduction reaction.
Waste water lime cream or other alkaline matters after reduction adjusts its pH, with meet sequential hydrolysis acidifying and aerobic process will
Ask.In Hydrolysis Acidification, by the effect of microorganism, larger molecular organicses further become little to the premenstrual waste water for stating process
Molecular organic, is that more favorable condition is created in subsequent bio oxidation.By biological oxidation process, remaining most of Organic substance quilts
Remove.Waste water finally enters activated carbon or porous ceramic grain biological filtering tower combined working, in the presence of microorganism, particularly rhodopseudomonas,
Further organics removal, it is ensured that the waste water stably reaching standard discharge after process.
Relative to existing method, the outstanding advantages of the present invention are to adopt CO2Now widely used sulphuric acid is replaced to be acidified
Agent, does not introduce SO4 2-Ion, essentially eliminates generation H2The material base of S(Contain a small amount of S in wastewater containing phenol and cyanide), so as to subtract significantly
Light H2The pollution of S, while it also avoid SO4 2-To hydrolysis acidification and it is aerobic during microorganism inhibitory action, greatly improve
The efficiency of biological treatment;The producer of gas generator is had, subsequent combustion device, CO needed for the present invention are had mostly2Can be from combustion
Burn isolated in the waste gas for producing, can not only reduce processing cost, and carbon emission can be reduced;Waste water energy after process is steady
Determine qualified discharge, and be adapted to focusing on for the wastewater containing phenol and cyanide that remaining multiple stage gas generator is produced, investment reduction, with obvious
Economic benefit and environmental benefit.
Specific implementation method
Embodiment 1:It is daily to process 1m3The wastewater containing phenol and cyanide that gas generator is produced(pH8.3、CODCr8200mg/L, volatile phenol
930mg/L、CN-4.0mg/L, T-N128mg/L), through the reduction of ferrimanganic composite powder(Every liter of waste water add ferrimanganic composite powder 5g, when
Between 30min, 25 DEG C, CO2The ultrasonic power 4kW that pressure 0.1MPa, every cubic metre of waste water are input into), hydrolysis acidification(24h、
pH6.0), aerobic biochemical(12h)With activated carbon biological filtering tower combined working(Hydraulic load is 40m3/m2.d, activated carbon gross thickness 2m)Process,
Effluent quality is CODCr77mg/L、CN-0.13mg/L, volatile phenol 0.32mg/L, T-N18mg/L.
Embodiment 2:It is daily to process 20m3The wastewater containing phenol and cyanide that gas generator is produced(pH8.2、CODCr7800mg/L, volatilization
Phenol 760mg/L, CN-4.2mg/L,T-N112mg/L), through the reduction of ferrimanganic composite powder(Every liter of waste water adds ferrimanganic composite powder
10g, time 10min, 45 DEG C, CO2The ultrasonic power 2kW that pressure 0.3MPa, every cubic metre of waste water are input into), hydrolysis acidification
(8h、pH8.0), aerobic biochemical(8h)With porous ceramic grain biological filtering tower combined working(Hydraulic load is 100m3/m2.d, porous ceramic grain gross thickness
4m)Process, effluent quality is CODCr73mg/L、CN-0.11mg/L, volatile phenol 0.22mg/L, T-N16mg/L.
Claims (1)
1. a kind of processing method of the wastewater containing phenol and cyanide that gas generator is produced, it is characterised in that the phenol for producing gas generator
Cyanogen waste water is filtered, the feeding voltage-resistant reactor after filtration, and cleaning ferrimanganic composite powder is added into reactor, is passed through industrial CO2
And reacted under ul-trasonic irradiation, the granularity of ferrimanganic composite powder is less than 180 mesh, the content of every kind of metal in ferrimanganic composite powder
Be not less than 5%, every liter of waste water adds ferrimanganic composite powder 5g~10g, under ul-trasonic irradiation the stirring reaction time be 10min~
40min, temperature is 25 DEG C~60 DEG C, and the ultrasonic power of every cubic metre of waste water input is 2kW~8kW, CO2Pressure be
0.1MPa~1.0MPa, reacted waste water carries out solid-liquor separation, the ferrimanganic composite powder Returning reactor isolated, solid-liquor separation
Waste water lime cream or other alkaline matters afterwards adjusts its pH value to 6~8, and subsequently into sedimentation tank 1h~3h is precipitated, indefinite
Phase extracts sludge out from sedimentation tank and is filtered, and filter cake makees dangerous disposition of solid waste, and filtrate returns sedimentation tank, sedimentation tank
Supernatant send hydrolysis acidification pool, waste water room temperature in hydrolysis acidification pool to stop 8h~24h, and the waste water after hydrolysis acidification enters biological
Aerobic Pond room temperature process, the Aerobic Process for Treatment time is 8h~12h, and the waste water after Aerobic Process for Treatment enters sedimentation tank and precipitates 1h~3h, no
Periodically extract sludge out from sedimentation tank to be filtered, filter cake makees dangerous disposition of solid waste, filtrate returns Aerobic Pond, sedimentation tank
Supernatant waste water send multi-layer biological filter tower to process, the filler of biological filtering tower combined working is activated carbon or porous ceramic grain, and filler gross thickness is 2m
~6m, the dominant bacteria of biological filtering tower combined working is the rhodopseudomonas in photosynthetic bacteria, and the hydraulic load of biological filtering tower combined working is 30 m3/m2.d
~100m3/m2.d, the standard water discharge discharge or reuse of biological filtering tower combined working.
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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 CN201611258961.8A patent/CN106630458A/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, 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 * |
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