CN106673311A - Treatment method for chemical organic wastewater - Google Patents
Treatment method for chemical organic wastewater Download PDFInfo
- Publication number
- CN106673311A CN106673311A CN201611254339.XA CN201611254339A CN106673311A CN 106673311 A CN106673311 A CN 106673311A CN 201611254339 A CN201611254339 A CN 201611254339A CN 106673311 A CN106673311 A CN 106673311A
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- China
- Prior art keywords
- waste water
- sedimentation tank
- manganese powder
- treatment
- reactor
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- 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
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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
-
- 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
-
- 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
- C02F2101/105—Phosphorus compounds
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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
-
- 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
- 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 treatment method for chemical organic wastewater. The method comprises the following processes: performing CO2-pressurized manganese powder reduction, anaerobic treatment, aerobic treatment and biologic filtering tower treatment. The treated wastewater can be stably discharged after reaching the standard.
Description
Technical field
The present invention relates to a kind of processing method of chemical industrial organic wastewater.
Background technology
Organic chemical industry is one of mainstay of the national economy industry, the organic waste water pollutant COD concentration that its production is produced
Height, complicated component particularly contains persistence organic pollutant(Containing phenyl ring and(Or)The Organic substance of heterocycle etc.)When, intractability
Greatly.If the waste water is not processed is directly discharged into environment, severe contamination will be caused to environment.At present containing persistence organic pollutant
The processing method of chemical industrial organic wastewater mainly first carries out advanced oxidation(Such as iron-carbon micro-electrolysis, metal powder reduction, Fenton methods
Deng)Pretreatment, then carries out a biological disposal upon.In advanced oxidation preprocessing process, sulphuric acid is generally needed to be added, caused at subsequent bio
Reason(Such as anaerobism, hydrolysis acidification)During produce H2S, produces more serious secondary pollution;Simultaneously because SO4 2-To microorganism
Growth has obvious inhibitory action, affects biological treatment effect, waste water to be difficult to stably reaching standard discharge.Exploitation secondary pollution is little, energy
The processing method of the chemical industrial organic wastewater of stably reaching standard discharge has larger practical value.
The content of the invention
For the problem of current chemical industrial organic wastewater processing method, the purpose of the present invention be find secondary pollution it is little, can be steady
Determine the processing method of the chemical industrial organic wastewater of qualified discharge, it is characterised in that pH value is more than into 5.0, and after adjusted pond is adjusted
Chemical industrial organic wastewater containing persistence organic pollutant sends into voltage-resistant reactor, and cleaning manganese powder is added into reactor, and is passed through work
Industry CO2Reacted, the granularity of manganese powder is less than 180 mesh, every liter of waste water adds manganese powder 5g~30g, the stirring reaction time be 1h~
3h, reaction temperature is 25 DEG C~60 DEG C, CO2Pressure be 0.1MPa~1.0MPa.Reacted waste water carries out solid-liquor separation, point
The manganese powder Returning reactor for separating out.Waste water lime cream or other alkaline matters after solid-liquor separation adjust its pH value to 6.8~
8.5,1h~3h is precipitated subsequently into sedimentation tank, irregularly to extract sludge out from sedimentation tank and filtered, filter cake makees dangerous solid
Waste treatment, filtrate returns sedimentation tank.The supernatant of sedimentation tank send anaerobic reactor.Waste water stops 24h in anaerobic reactor
~120h, anaerobism temperature is 25 DEG C~55 DEG C.Into the process of biology aerobic pond room temperature, the Aerobic Process for Treatment time is waste water after anaerobism
6h~16h.Waste water after Aerobic Process for Treatment enters sedimentation tank and precipitates 1h~3h, and irregularly extracting sludge out from sedimentation tank was carried out
Filter, filter cake makees dangerous disposition of solid waste, and filtrate returns Aerobic Pond.The supernatant waste water of sedimentation tank is sent at multi-layer biological filter tower
Reason.The filler of biological filtering tower combined working is activated carbon or porous ceramic grain, is 1.0m~2.0m per thickness degree, and gross thickness is 2m~6m.It is biological
The dominant bacteria of filter tower 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 standard water discharge discharge of biological filtering tower combined working or reuse.
The object of the present invention is achieved like this, and chemical industrial organic wastewater is entered after manganese powder reduction reactor, big in waste water
Molecular organic, particularly persistence organic pollutant(Containing phenyl ring and(Or)The Organic substance of heterocycle etc.)Produced by manganese powder reduction
Strong reduction free radical effect and destroy, be subsequent biochemical process create favorable conditions.It is passed through pressure CO2Purpose be maintain
Manganese powder reduces suitable pH value(2.0~5.0), the waste water lime cream or other alkaline matters after reduction adjust its pH value, with
Meet the requirement of follow-up anaerobic and aerobic process.The premenstrual waste water for stating process in anaerobic processes, by the effect of microorganism, greatly
Molecular organic further becomes small organic molecule, is that more favorable condition is created in subsequent bio oxidation.At biological oxidation
Reason, remaining most of Organic substances are removed, while going to denitrogenate the pollutant such as phosphorus.Waste water finally enters activated carbon or porous ceramic grain
Biological filtering tower combined working, in the presence of microorganism, particularly rhodopseudomonas, the pollutant such as further organics removal and nitrogen phosphorus are protected
Waste water stably reaching standard discharge after card process.
Relative to existing method(Iron-carbon micro-electrolysis, metal powder reduction, Fenton methods etc.), the outstanding advantages of the present invention are to adopt
Use CO2Replace now widely used sulphuric acid to make acidulant, do not introduce SO4 2-Ion, essentially eliminates generation H2The material base of S
(Part chemical industrial organic wastewater contains S), so as to significantly reduce H2The pollution of S, while it also avoid SO4 2-To anaerobic and aerobic mistake
The inhibitory action of microorganism in journey, greatly improves the efficiency of biological treatment;Chemical plant all has boiler, what fuel combustion was produced
CO2Waste gas can make full use of, and can not only reduce processing cost, and can reduce carbon emission;Waste water energy after process stably reaches
Mark discharge, with obvious economic benefit and environmental benefit.
Specific implementation method
Embodiment 1:1m is processed daily3Chemical industrial organic wastewater(Composition:pH6.7、CODCr11400mg/L、T-N52.5 mg/L、T-
P35.1mg/L, colourity 250), the reduction of Jing manganese powders(1h、40℃、CO2Pressure 0.6MPa, every liter of waste water add manganese powder 25g), anaerobism
(PH8.5,72h, 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
35m3/m2.d)The COD of water outlet after processCrFor 66mg/L, T-N14.1mg/L, T-P0.4mg/L, colourity 17.
Embodiment 2:5m is processed daily3Synthesis pharmaceutical organic wastewater(Composition:pH5.7、CODCr6500 mg/L、T-N31.3
Mg/L, T-P23.2mg/L, colourity 300), the reduction of Jing manganese powders(3h、25℃、CO2Pressure 0.1MPa, every liter of waste water add manganese powder
5g), anaerobism(PH6.8,24h, 35 DEG C~55 DEG C), it is aerobic(6h)And biological filtering tower combined working(Active carbon filler layer gross thickness 2m, waterpower are born
Lotus 90m3/m2.d)The COD of water outlet after processCrFor 58mg/L, T-N10.8mg/L, T-P0.4mg/L, colourity 19.
Claims (1)
1. a kind of processing method of chemical industrial organic wastewater, it is characterised in that pH value is more than into 5.0, and after adjusted pond is adjusted
Chemical industrial organic wastewater containing persistence organic pollutant sends into voltage-resistant reactor, and cleaning manganese powder is added into reactor, and is passed through work
Industry CO2Reacted, the granularity of manganese powder is less than 180 mesh, every liter of waste water adds manganese powder 5g~30g, the stirring reaction time be 1h~
3h, reaction temperature is 25 DEG C~60 DEG C, CO2Pressure be 0.1MPa~1.0MPa, reacted waste water carries out solid-liquor separation, point
The manganese powder Returning reactor for separating out, the waste water lime cream or other alkaline matters after solid-liquor separation adjust its pH value to 6.8~
8.5,1h~3h is precipitated subsequently into sedimentation tank, irregularly to extract sludge out from sedimentation tank and filtered, filter cake makees dangerous solid
Waste treatment, filtrate returns sedimentation tank, and the supernatant waste water of sedimentation tank send anaerobic reactor, waste water to stop in anaerobic reactor
24h~120h, anaerobism temperature is 25 DEG C~55 DEG C, and the waste water after anaerobism is processed into biology aerobic pond room temperature, during Aerobic Process for Treatment
Between be 6h~16h, the waste water after Aerobic Process for Treatment enter sedimentation tank precipitate 1h~3h, irregularly from sedimentation tank extract out sludge carry out
Filter, filter cake makees dangerous disposition of solid waste, filtrate returns Aerobic Pond, and the supernatant waste water of sedimentation tank is sent at multi-layer biological filter tower
Reason, the filler of biological filtering tower combined working is activated carbon or porous ceramic grain, and filler gross thickness is 2m~6m, and the dominant bacteria of biological filtering tower combined working is light
The rhodopseudomonas in antibacterial are closed, 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
Qualified discharge or reuse.
Priority Applications (1)
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CN201611254339.XA CN106673311A (en) | 2016-12-30 | 2016-12-30 | Treatment method for chemical organic wastewater |
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CN201611254339.XA CN106673311A (en) | 2016-12-30 | 2016-12-30 | Treatment method for chemical organic wastewater |
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CN201611254339.XA Pending CN106673311A (en) | 2016-12-30 | 2016-12-30 | Treatment method for chemical organic 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 CN201611254339.XA patent/CN106673311A/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 |
---|
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: "《爱国卫生运动工作手册》", 31 July 1986, 湖南人民出版社 * |
蒋克彬: "《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 * |
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Application publication date: 20170517 |