CN106698831A - Treatment method of chemical engineering organic wastewater - Google Patents
Treatment method of chemical engineering organic wastewater Download PDFInfo
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- CN106698831A CN106698831A CN201611256052.0A CN201611256052A CN106698831A CN 106698831 A CN106698831 A CN 106698831A CN 201611256052 A CN201611256052 A CN 201611256052A CN 106698831 A CN106698831 A CN 106698831A
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- waste water
- sedimentation basin
- composite powder
- zinc composite
- iron zinc
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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
- 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
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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
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/34—Nature of the water, waste water, sewage or sludge to be treated from industrial activities not provided for in groups C02F2103/12 - C02F2103/32
- C02F2103/36—Nature of the water, waste water, sewage or sludge to be treated from industrial activities not provided for in groups C02F2103/12 - C02F2103/32 from the manufacture of organic 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
- 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
- C02F2303/00—Specific treatment goals
- C02F2303/24—Separation of coarse particles, e.g. by using sieves or screens
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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)
- Treatment Of Water By Oxidation Or Reduction (AREA)
- Water Treatment By Electricity Or Magnetism (AREA)
Abstract
A treatment method of chemical engineering organic wastewater, disclosed in the invention, comprises the processes of CO2 pressurized iron and zinc composite powder reduction, anaerobic treatment, aerobic treatment and biological filtration tower treatment, and treated wastewater is discharged after stably reaching standards.
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 matter 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.Contain persistence organic pollutant at present
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 biological treatment.In advanced oxidation preprocessing process, sulfuric 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, influences biological treatment effect, and waste water is difficult to stably reaching standard discharge.Exploitation secondary pollution is small, 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 small, can be steady
Determine the processing method of the chemical industrial organic wastewater of qualified discharge, it is characterised in that after pH value is more than into 5.0, and the regulation of adjusted pond
Chemical industrial organic wastewater feeding voltage-resistant reactor containing persistence organic pollutant, reactor is added by cleaning iron zinc composite powder, and
It is passed through industrial CO2Reacted.The granularity of iron zinc composite powder is less than 180 mesh, and the content of each metal is not in iron zinc composite powder
Less than 5%（The iron zinc composite powder that return is used is not limited）.Every liter of waste water adds iron zinc composite powder 5g~30g, stirring reaction
Time be 1h~3h, reaction temperature be 25 DEG C~60 DEG C, CO2Pressure be 0.1MPa~1.0MPa.Reacted waste water is carried out
Solid-liquor separation, the iron zinc composite powder Returning reactor isolated.Waste water milk of lime or other alkaline matters after solid-liquor separation
Its pH value to 6.8~8.5 is adjusted, 1h~3h is precipitated subsequently into sedimentation basin, irregularly extracting sludge out from sedimentation basin was carried out
Filter, filter cake makees dangerous disposition of solid waste, and filtrate returns to sedimentation basin.The supernatant waste water of sedimentation basin send anaerobic reactor.Waste water
24h~120h is stopped in anaerobic reactor, anaerobism temperature is 25 DEG C~55 DEG C.Waste water after anaerobism enters biology aerobic pond normal temperature
Treatment, the Aerobic Process for Treatment time is 6h~16h.Waste water after Aerobic Process for Treatment enters sedimentation basin and precipitates 1h~3h, irregularly from precipitation
Extract sludge in pond out to be filtered, filter cake makees dangerous disposition of solid waste, filtrate returns to Aerobic Pond.The supernatant waste water of sedimentation basin
Multi-layer biological filter tower is sent to process.The filler of biological filtering tower combined working is activated carbon or porous ceramic grain, is 1.0m~2.0m, total thickness per thickness degree
It is 2m~6m to spend.The dominant bacteria of biological filtering tower combined working is the red pseudomonas in photosynthetic bacteria（Rhodopseudomonas）.It is biological
The hydraulic load of filter tower 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 chemical industrial organic wastewater enters iron zinc composite powder reduction reactor, waste water
In larger molecular organicses, particularly persistence organic pollutant（Containing phenyl ring and（Or）The organic matter of heterocycle etc.）It is multiple by iron zinc
Close the effect of the strong reduction free radical that powder reduction is produced and destroy, be that subsequent biochemical treatment creates favorable conditions.It is passed through pressure CO2
Purpose be to maintain iron zinc composite powder to reduce suitable pH value（2.0~5.0）, waste water milk of lime or other alkalescence after reduction
Material adjusts its pH value, to meet the requirement of follow-up anaerobic and aerobic process.Through the waste water of aforementioned processing in anaerobic processes, 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, while going to denitrogenate the pollutants such as phosphorus.Waste water is most laggard
Enter activated carbon or porous ceramic grain biological filtering tower combined working, in the presence of microorganism, particularly red pseudomonas, further organics removal
With the pollutant such as nitrogen phosphorus, it is ensured that the waste water stably reaching standard discharge after treatment.
Relative to existing method（Iron-carbon micro-electrolysis, metal powder reduction, Fenton methods etc.）, outstanding advantages of the invention are to adopt
Use CO2Make acidulant instead of now widely used sulfuric acid, 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 stabilization after treatment 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）, reduced through iron zinc composite powder（1h、40℃、CO2Pressure 0.6MPa, every liter of waste water add iron zinc to answer
Close 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 treatmentCrIt is 55mg/L, T-N15.2mg/L, T-P0.2mg/L, colourity 14.
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）, reduced through iron zinc composite powder（3h、25℃、CO2Pressure 0.1MPa, every liter of waste water are added
Iron zinc composite 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 total thickness
Degree 2m, hydraulic load 90m3/m2.d）The COD of water outlet after treatmentCrIt is 40mg/L, T-N11.7mg/L, T-P0.5mg/L, colourity
16。
Claims (1)
1. a kind of processing method of chemical industrial organic wastewater, it is characterised in that after pH value is more than into 5.0, and the regulation of adjusted pond
Chemical industrial organic wastewater feeding voltage-resistant reactor containing persistence organic pollutant, reactor is added by cleaning iron zinc composite powder, and
It is passed through industrial CO2Reacted, the granularity of iron zinc composite powder is less than 180 mesh, the content of each metal is not in iron zinc composite powder
Less than 5%, every liter of waste water adds iron zinc composite powder 5g~30g, and the stirring reaction time is 1h~3h, and reaction 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 zinc composite powder isolated is returned
Reactor, waste water milk of lime or other alkaline matters after solid-liquor separation adjust its pH value to 6.8~8.5, subsequently into heavy
1h~3h is precipitated in shallow lake pond, is irregularly extracted sludge out from sedimentation basin and is filtered, and filter cake makees dangerous disposition of solid waste, filtrate
Sedimentation basin is returned to, the supernatant waste water of sedimentation basin send anaerobic reactor, waste water to stop 24h~120h, anaerobism temperature in anaerobic reactor
It is 25 DEG C~55 DEG C to spend, and the waste water after anaerobism is into the treatment of biology aerobic pond normal temperature, and the Aerobic Process for Treatment time is 6h~16h, aerobic
Waste water after treatment enters sedimentation basin and precipitates 1h~3h, irregularly extracts sludge out from sedimentation basin and is filtered, and filter cake is made dangerous
Disposition of solid waste, filtrate returns to Aerobic Pond, the supernatant waste water of sedimentation basin send multi-layer biological filter tower to process, and biological filtering tower combined working is filled out
Expect to be activated carbon or porous ceramic grain, filler gross thickness is 2m~6m, and the dominant bacteria of biological filtering tower combined working is the red vacation in photosynthetic bacteria
Monad, 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.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611256052.0A CN106698831A (en) | 2016-12-30 | 2016-12-30 | Treatment method of chemical engineering organic wastewater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611256052.0A CN106698831A (en) | 2016-12-30 | 2016-12-30 | Treatment method of chemical engineering organic wastewater |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106698831A true CN106698831A (en) | 2017-05-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611256052.0A Pending CN106698831A (en) | 2016-12-30 | 2016-12-30 | Treatment method of chemical engineering organic wastewater |
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| Country | Link |
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| CN (1) | CN106698831A (en) |
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 CN201611256052.0A patent/CN106698831A/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 * |
| 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》", 30 July 2009 * |
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