CN106673317A - Treatment method of chemical industrial organic wastewater - Google Patents
Treatment method of chemical industrial organic wastewater Download PDFInfo
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- CN106673317A CN106673317A CN201611254687.7A CN201611254687A CN106673317A CN 106673317 A CN106673317 A CN 106673317A CN 201611254687 A CN201611254687 A CN 201611254687A CN 106673317 A CN106673317 A CN 106673317A
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- waste water
- sedimentation tank
- composite powder
- aluminum composite
- ferrum aluminum
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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
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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
- 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
- C02F2101/30—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
- 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
- C02F3/02—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
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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)
Abstract
The invention discloses a treatment method of chemical industrial organic wastewater. The method comprises the procedures of CO2 pressurization, and manganese powder reduction, anaerobic treatment, aerobic treatment and biofiler treatment under the action of an ultrasonic wave. The treated wastewater can be stably discharged up to 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 ferrum aluminum composite powder is added into reactor, and
It is passed through industrial CO2Reacted.The granularity of ferrum aluminum composite powder is less than 180 mesh, and the content of every kind of metal is not low in ferrum aluminum composite powder
In 5%(The ferrum aluminum composite powder that return is used is not limited), every liter of waste water addition ferrum aluminum composite powder 5g~30g.Make in ultrasound wave
With under, the mechanic whirl-nett reaction time is 10min~40min, and reaction temperature is 25 DEG C~60 DEG C, CO2Pressure be 0.1MPa~
1.0MPa, the power of every cubic metre of waste water input ultrasound wave is 2kW~8kW.Reacted waste water carries out solid-liquor separation, isolates
Ferrum aluminum composite powder Returning reactor.Waste water lime cream or other alkaline matters after solid-liquor separation adjusts 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 is made dangerous solid
Body waste treatment, filtrate returns sedimentation tank.The supernatant of sedimentation tank send anaerobic reactor.Waste water is stopped in anaerobic reactor
24h~120h, anaerobism temperature is 25 DEG C~55 DEG C.Waste water after anaerobism is processed into biology aerobic pond room temperature, during Aerobic Process for Treatment
Between be 6h~16h.Waste water after Aerobic Process for Treatment enters sedimentation tank and precipitates 1h~3h, and irregularly extracting sludge out from sedimentation tank is carried out
Filter, filter cake makees dangerous disposition of solid waste, 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 ferrum aluminum composite powder reduction reactor, waste water
In larger molecular organicses, particularly persistence organic pollutant(Containing phenyl ring and(Or)The Organic substance of heterocycle etc.)It is multiple by ferrum aluminum
Close the effect of the strong reduction free radical that powder reduction is produced and destroy, be that subsequent biochemical process creates favorable conditions.It is passed through pressure CO2
Purpose be to maintain ferrum aluminum composite powder to reduce suitable pH value(2.0~5.0), the effect for being input into ultrasound wave is the biography for accelerating reaction
Matter process.Waste water lime cream or other alkaline matters after reduction adjusts its pH value, to meet follow-up anaerobic and aerobic process
Requirement.In anaerobic processes, 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, 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 microorganism, especially
In the presence of being rhodopseudomonas, the pollutant such as further organics removal and nitrogen phosphorus, it is ensured that the waste water stably reaching standard after process
Discharge.
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 ferrum aluminum composite powder(30min、25℃、CO2Pressure 0.6MPa, every cubic metre of waste water input
Ultrasonic power 2kW, every liter of waste water add ferrum aluminum composite 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 55mg/L,
T-N13.9mg/L, T-P0.2mg/L, colourity 18.
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 ferrum aluminum composite powder(10min、40℃、CO2Pressure 0.1MPa, per cubic metre
Waste water input ultrasonic power 4kW, every liter of waste water add ferrum aluminum composite powder 5g), anaerobism(PH6.8,24h, 35 DEG C~55 DEG C), it is good
Oxygen(6h)And biological filtering tower combined working(Active carbon filler layer gross thickness 2m, hydraulic load 90m3/m2.d)The COD of water outlet after processCrFor
47mg/L, T-N12.7mg/L, T-P0.2mg/L, colourity 14.
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 ferrum aluminum composite powder is added into reactor, and
It is passed through industrial CO2Reacted, the granularity of ferrum aluminum composite powder is less than 180 mesh, and the content of every kind of metal is not low in ferrum aluminum composite powder
In 5%, every liter of waste water adds ferrum aluminum composite powder 5g~30g, under ul-trasonic irradiation, the mechanic whirl-nett reaction time be 10min~
40min, reaction temperature is 25 DEG C~60 DEG C, CO2Pressure be 0.1MPa~1.0MPa, every cubic metre of waste water input ultrasound wave
Power is 2kW~8kW, and reacted waste water carries out solid-liquor separation, the ferrum aluminum composite powder Returning reactor isolated, solid-liquor separation
Waste water lime cream or other alkaline matters afterwards adjusts its pH value to 6.8~8.5, and subsequently into sedimentation tank 1h~3h is precipitated,
Irregularly extract sludge out from sedimentation tank to be filtered, filter cake makees dangerous disposition of solid waste, filtrate returns sedimentation tank, precipitation
The supernatant waste water in pond send anaerobic reactor, waste water to stop 24h~120h in anaerobic reactor, and anaerobism temperature is 25 DEG C~55 DEG C,
Waste water after anaerobism is 6h~16h into the process of biology aerobic pond room temperature, Aerobic Process for Treatment time, and the waste water after Aerobic Process for Treatment is entered
Sedimentation tank precipitates 1h~3h, irregularly extracts sludge out from sedimentation tank and is filtered, and filter cake makees dangerous disposition of solid waste, filter
Liquid returns Aerobic Pond, and the supernatant waste water of sedimentation tank send multi-layer biological filter tower to process, and the filler of biological filtering tower combined working is activated carbon or porous
Haydite, filler gross thickness is 2m~6m, and the dominant bacteria of biological filtering tower combined working is the rhodopseudomonas in photosynthetic bacteria, biological filtering tower combined working
Hydraulic load is 30 m3/m2.d~90m3/m2.d, the standard water discharge discharge or reuse of biological filtering tower combined working.
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CN201611254687.7A CN106673317A (en) | 2016-12-30 | 2016-12-30 | Treatment method of chemical industrial organic wastewater |
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CN201611254687.7A CN106673317A (en) | 2016-12-30 | 2016-12-30 | Treatment method of chemical industrial 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 |
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2016
- 2016-12-30 CN CN201611254687.7A patent/CN106673317A/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 |
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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: "《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》", 31 July 2009 * |
陈武等: "《环境污染治理的电化学技术》", 31 March 2013, 石油工业出版社 * |
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