CN106698835A - Method for treating phenol and cyanide wastewater produced by gas generation furnace - Google Patents
Method for treating phenol and cyanide wastewater produced by gas generation furnace Download PDFInfo
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- CN106698835A CN106698835A CN201611257056.0A CN201611257056A CN106698835A CN 106698835 A CN106698835 A CN 106698835A CN 201611257056 A CN201611257056 A CN 201611257056A CN 106698835 A CN106698835 A CN 106698835A
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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
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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
- C02F1/70—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
- C02F1/00—Treatment of water, waste water, or sewage
- C02F2001/007—Processes including a sedimentation step
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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
- C02F2003/001—Biological treatment of water, waste water, or sewage using granular carriers or supports for the microorganisms
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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
- C02F2003/001—Biological treatment of water, waste water, or sewage using granular carriers or supports for the microorganisms
- C02F2003/003—Biological treatment of water, waste water, or sewage using granular carriers or supports for the microorganisms using activated carbon or the like
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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
- 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
- C02F2101/00—Nature of the contaminant
- C02F2101/30—Organic compounds
- C02F2101/40—Organic compounds containing sulfur
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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
- C02F2301/00—General aspects of water treatment
- C02F2301/04—Flow arrangements
- C02F2301/046—Recirculation with an external loop
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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
- C02F2301/00—General aspects of water treatment
- C02F2301/08—Multistage treatments, e.g. repetition of the same process step under different conditions
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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
- C02F3/30—Aerobic and anaerobic 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 relates to a method for treating phenol and cyanide wastewater produced by a gas generation furnace. The method comprises the following steps of filtering, CO2 (carbon dioxide) pressurizing and reduction by iron, aluminum and manganese composite powder, settling, hydrolytic acidification, aeration, biological filter tower and the like. The method has the advantage that the treated wastewater can stably reach standard and then be drained.
Description
Technical field
A kind of processing method of the wastewater containing phenol and cyanide produced the present invention relates to gas generator.
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 chemically react and are 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.The processing method of current wastewater containing phenol and cyanide mainly has biochemistry
Processing method, independent burning method, water-coal-slurry facture processed and it is mixed into drying tower Feedstock treating method.The treatment of biochemistry treatment method
Effect is unstable, relatively costly；Although independent burning method treatment effect is very well, processing cost is very high；Water-coal-slurry facture processed
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 coal gas occurs
The wastewater containing phenol and cyanide that stove is produced is filtered, the feeding voltage-resistant reactor after filtering, and cleaning iron-aluminum-manganese composite powder is added into reactor,
And it is passed through industrial CO2Reacted.The granularity of iron-aluminum-manganese composite powder is less than 180 mesh, each metal in iron-aluminum-manganese composite powder
Content be not less than 5%（The iron-aluminum-manganese composite powder that return is used is not limited）, every liter of waste water add iron-aluminum-manganese composite powder 5g~
10g.The stirring reaction time be 2h~4h, temperature be 25 DEG C~60 DEG C, CO2Pressure be 0.1MPa~1.0MPa.It is reacted
Waste water carries out solid-liquor separation, the iron-aluminum-manganese composite powder Returning reactor isolated.Waste water milk of lime after solid-liquor separation or its
His alkaline matter adjusts its pH value to 6~8, and 1h~3h is precipitated subsequently into sedimentation basin, irregularly extracts sludge out from sedimentation basin
Filtered, filter cake makees dangerous disposition of solid waste, filtrate returns to sedimentation basin.The supernatant of sedimentation basin send hydrolysis acidification pool.
Waste water normal temperature in hydrolysis acidification pool stops 8h~24h.Waste water after hydrolysis acidification is aerobic into the treatment of biology aerobic pond normal temperature
Process time is 8h~12h.Waste water after Aerobic Process for Treatment enters sedimentation basin and precipitates 1h~3h, irregularly extracts dirty out from sedimentation basin
Mud 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 treatment.The filler of biological filtering tower combined working is activated carbon or porous ceramic grain, is 1m~2m per thickness degree, and gross thickness is 2m~6m.It is raw
The dominant bacteria of thing filter tower is the red pseudomonas in photosynthetic bacteria（Rhodopseudomonas）.The hydraulic load of biological filtering tower combined working
It is 30 m3/m2.d~100m3/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：Waste water enters pressure-resistant iron-aluminum-manganese composite powder reduction reactor, in waste water
Larger molecular organicses, particularly persistence organic pollutant（Organic matter containing phenyl ring, heterocycle）Reduced by iron-aluminum-manganese composite powder
Produce strong reduction free radical effect and destroy, be subsequent biochemical treatment create favorable conditions.It is passed through pressure CO2Purpose be
Iron-aluminum-manganese composite powder is maintained to reduce suitable pH value（2.0~5.0）, waste water milk of lime or other alkaline matters after reduction are adjusted
Its pH is saved, to meet sequential hydrolysis acidifying and the requirement of aerobic process.Through the waste water of aforementioned processing in Hydrolysis Acidification, lead to
The effect of microorganism is crossed, larger molecular organicses further become small organic molecule, be that more favourable bar is created in subsequent bio oxidation
Part.Processed by biological oxidation, remaining most of organic matters are removed.Waste water finally enters activated carbon or porous ceramic grain is biological
Filter tower, in the presence of microorganism, particularly red pseudomonas, further organics removal, it is ensured that the waste water stabilization after treatment
Qualified discharge.
Relative to existing method, outstanding advantages of the invention are to use CO2It is acidified instead of now widely used sulfuric acid
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
It is isolated in the waste gas that burning is produced, processing cost can be not only reduced, and carbon emission can be reduced；Waste water energy after treatment is steady
Determine qualified discharge, and be adapted to focusing on for the wastewater containing phenol and cyanide that remaining many gas generators are produced, investment reduction, with obvious
Economic benefit and environmental benefit.
Specific implementation method
Embodiment 1：Daily treatment 1m3The wastewater containing phenol and cyanide that gas generator is produced（pH8.2、CODCr8500mg/L, volatile phenol
910mg/L、CN-4.2mg/L, T-N115mg/L）, reduced by iron-aluminum-manganese composite powder（Every liter of waste water adds iron-aluminum-manganese composite powder
5g, time 4h, 25 DEG C, CO2Pressure 0.1MPa）, hydrolysis acidification（24h、pH6.0）, aerobic biochemical（12h）With activated carbon biological filter
Tower（Hydraulic load is 40m3/m2.d, activated carbon gross thickness 2m）Treatment, effluent quality is CODCr72mg/L、CN-0.12mg/L, wave
Hair phenol 0.24mg/L, T-N17mg/L.
Embodiment 2：Daily treatment 20m3The wastewater containing phenol and cyanide that gas generator is produced（pH8.3、CODCr8000mg/L, volatilization
Phenol 860mg/L, CN-3.9mg/L, T-N101mg/L）, reduced by iron-aluminum-manganese composite powder（Every liter of waste water adds iron-aluminum-manganese to be combined
Powder 10g, time 2h, 45 DEG C, CO2Pressure 0.3MPa）, hydrolysis acidification（8h、pH8.0）, aerobic biochemical（8h）Given birth to porous ceramic grain
Thing filter tower（Hydraulic load is 100m3/m2.d, porous ceramic grain gross thickness 4m）Treatment, effluent quality is CODCr59mg/L、CN-
0.11mg/L, volatile phenol 0.18mg/L, T-N12mg/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 filtering, cleaning iron-aluminum-manganese composite powder is added into reactor, and be passed through industry
CO2Reacted, the granularity of iron-aluminum-manganese composite powder is less than 180 mesh, and the content of each metal in iron-aluminum-manganese composite powder is not low
In 5%, every liter of waste water adds iron-aluminum-manganese composite powder 5g~10g, and the stirring reaction time is 2h~4h, and temperature is 25 DEG C~60 DEG C,
CO2Pressure be 0.1MPa~1.0MPa, reacted waste water carries out solid-liquor separation, and the iron-aluminum-manganese composite powder isolated returns anti-
Device is answered, the waste water milk of lime or other alkaline matters after solid-liquor separation adjust its pH value to 6~8, it is heavy subsequently into sedimentation basin
Shallow lake 1h~3h, irregularly extracts sludge out from sedimentation basin and is filtered, and filter cake makees dangerous disposition of solid waste, and filtrate returns heavy
Shallow lake pond, the supernatant of sedimentation basin send hydrolysis acidification pool, and waste water normal temperature in hydrolysis acidification pool stops 8h~24h, after hydrolysis acidification
Waste water into the treatment of biology aerobic pond normal temperature, the Aerobic Process for Treatment time is 8h~12h, 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~100m3/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 |
|---|---|---|---|
| CN201611257056.0A CN106698835A (en) | 2016-12-30 | 2016-12-30 | Method for treating phenol and cyanide wastewater produced by gas generation furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611257056.0A CN106698835A (en) | 2016-12-30 | 2016-12-30 | Method for treating phenol and cyanide wastewater produced by gas generation furnace |
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| Publication Number | Publication Date |
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| CN106698835A true CN106698835A (en) | 2017-05-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611257056.0A Pending CN106698835A (en) | 2016-12-30 | 2016-12-30 | Method for treating phenol and cyanide wastewater produced by gas generation furnace |
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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 CN201611257056.0A patent/CN106698835A/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 |
|---|
| 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: "《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》", 30 July 2009, 华中科技大学出版社 * |
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Application publication date: 20170524 |
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