CN107777837A - Pesticide chemical waste water treatment process - Google Patents
Pesticide chemical waste water treatment process Download PDFInfo
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- CN107777837A CN107777837A CN201710944631.2A CN201710944631A CN107777837A CN 107777837 A CN107777837 A CN 107777837A CN 201710944631 A CN201710944631 A CN 201710944631A CN 107777837 A CN107777837 A CN 107777837A
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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
- C02F1/28—Treatment of water, waste water, or sewage by sorption
- C02F1/283—Treatment of water, waste water, or sewage by sorption using coal, charred products, or inorganic mixtures containing them
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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
- C02F1/46—Treatment of water, waste water, or sewage by electrochemical methods
- C02F1/461—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis
- C02F1/46104—Devices therefor; Their operating or servicing
- C02F1/46176—Galvanic cells
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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
- C02F1/46—Treatment of water, waste water, or sewage by electrochemical methods
- C02F1/461—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis
- C02F1/467—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis by electrochemical disinfection; by electrooxydation or by electroreduction
- C02F1/4672—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis by electrochemical disinfection; by electrooxydation or by electroreduction by electrooxydation
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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
- C02F1/72—Treatment of water, waste water, or sewage by oxidation
- C02F1/722—Oxidation by peroxides
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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
- C02F1/72—Treatment of water, waste water, or sewage by oxidation
- C02F1/725—Treatment of water, waste water, or sewage by oxidation by catalytic oxidation
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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
- C02F1/72—Treatment of water, waste water, or sewage by oxidation
- C02F1/76—Treatment of water, waste water, or sewage by oxidation with halogens or compounds of halogens
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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
- C02F2301/08—Multistage treatments, e.g. repetition of the same process step under different conditions
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2305/00—Use of specific compounds during water treatment
- C02F2305/02—Specific form of oxidant
- C02F2305/026—Fenton's reagent
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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
- C02F3/10—Packings; Fillings; Grids
- C02F3/105—Characterized by the chemical composition
- C02F3/106—Carbonaceous materials
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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
- C02F3/2806—Anaerobic processes using solid supports for microorganisms
Abstract
The invention discloses a kind of pesticide chemical waste water treatment process, is related to technical field of waste water processing, and pesticide chemical waste water treatment process includes procedure below：PH regulations, light electrolysis, catalysis oxidation, LBQ one-levels are aerobic, LBQ ABR anaerobism, LBQ two levels are aerobic, AOP, BAF, deep oxidation；Pesticide chemical waste water treatment process is more preferable, processing chemical engineering sewage faster, more environmentally friendly, waste water is reduced to endanger environment and the mankind, all things on earth life is made, active response country to the policy of environmentally friendly strict demand, intends carrying out upgrading to existing waste water disposal facility in recent years.After technology upgrading transformation, waste water processing station can stable and high effective operation, and operating cost reduces, and automaticity is high.
Description
Technical field：
The present invention relates to technical field of waste water processing, and in particular to pesticide chemical enterprise produces the handling process of waste water.
Background technology：
At present, the pollution of pesticide industry mostlys come from the waste water discharged in production process, according to statistics, national agricultural chemicals work
About 1.5 hundred million tons of the annual waste discharge of industry, draining, product washings, equipment and mill floor mainly in production process it is clear
Wash water etc..The waste water of pesticide industry has the characteristics that：
(1) organic concentration is high, poisons big.The COD of synthetic wastewater generally in tens of thousands of more than mg/L, is sometimes even up to
Hundreds of thousands mg/L.
(2) pollutant component is complicated.By taking the production waste water of organophosphorus pesticide as an example, not only containing substantial amounts of organophosphor and two
Valency sulphur (when waste water COD is 3000mg/L, organic phosphorus concentration is up to 200mg/L, and divalence sulphur concentration is more than 300mg/L), and
Also contain substantial amounts of building-up process in it is unreacted in ask body, accessory substance, such as the waste water of DDVP, parathion-methyl is cutd open
Analysis, 9 kinds identified organise in platform thing, and 2 kinds are active compound, and 6 kinds are active compound catabolite, and one kind is other aromatic compounds.
(3) recalcitrant substance is more.As Methochloride gives up, as inlet COD concentration 1000mg/L, 24h, COD are stopped
Clearance is only 50%~54%, while activated sludge is gradually loose.Contain two sulphur caused by the building-up processes such as Rogor, malathion
The waste water of substituted phosphate class compound also belongs to waste water difficult for biological degradation.
(4) ton product wastewater discharge is big, and due to the problems such as production technology is unstable, operational administrative, causes waste water
Water quality, water are unstable, and certain difficulty is brought for the processing of waste water.
It is conventional because treatment effect is bad although current most domestic insecticide factory has established wastewater treatment equipment
The two stage treatment method floor space of pretreatment plus biochemistry is big, operating cost is high.Therefore, it is difficult to ensure that all facilities can be normal
Operating, exploitation, popularization processing method is simple, operating cost is low, the new method of wastewater treatment of high treating effect is the task of top priority.
The content of the invention：
The technical problems to be solved by the invention are to provide pesticide chemical waste water treatment process, it is more preferable, faster, it is more environmentally friendly
Processing chemical engineering sewage, reduce waste water and environment and the mankind endangered, make all things on earth life, active response country is in recent years to environmental protection
The policy of strict demand, intend carrying out upgrading to existing waste water disposal facility.After technology upgrading transformation, waste water processing station can
Stable and high effective operation, and operating cost reduces, automaticity is high.
The technical problems to be solved by the invention are realized using following technical scheme：
Pesticide chemical waste water treatment process：Pesticide chemical waste water treatment process includes procedure below：
PH regulations, light electrolysis, catalysis oxidation, LBQ- one-levels are aerobic, LBQ-ABR anaerobism, LBQ- two levels are aerobic, AOP, aeration
Biofilter, deep oxidation.
1st, carry out deamination is collected separately in high ammonia-nitrogen wastewater, and using negative pressure deamination or normal temperature stripping ammonia, rear progress materialization is located in advance
Reason, wastewater treatment, 731~1341mg/L of water outlet ammonia nitrogen after processing are carried out by biochemical process；
2nd, hydrogen peroxide (levels 20-40%) of the cyanide wastewater through 2~5% mass percents of addition, with flow 200
Catalysis and micro-electrolysis tower ml/hour is pumped into, catalysis and micro-electrolysis carries out wastewater treatment by biochemical process, and the rear acid-base accommodation that carries out is urged
After changing light electrolysis, LBQ-ABR biochemical process, LBQ anaerobic techniques are subsequently used, LBQ aerobic process removes to COD, and control LBQ detests
Oxygen technique is to COD clearances >=55%, LBQ aerobic process to COD clearance >=65%；
3rd, wastewater treatment is carried out by biochemical process after waste water, other waste water mix with deamination waste water after recovery dimethylamine；
Light electrolysis, then pre- catalysis oxidation are first carried out, follow-up aeration, then the rear directly progress continuous aerobic process of LBQ-, COD is removed, to COD
Clearance is controlled >=80%；
4th, SBR/ outputted aerobic waters, which are collected, carries out two level Fenton oxidation, removes COD；It is follow-up to carry out two level LBQ-SBR, continue
COD is removed, controls water outlet COD≤200mg/L, water outlet ammonia nitrogen<25mg/L.
Wherein described high ammonia-nitrogen wastewater carries out ammonia still process pretreatment, makes to be less than 150mg/ into the ammonia nitrogen in biochemical system waste water
L, total nitrogen are less than 300mg/L, it is ensured that the C/N of biochemical section is than that rationally, can realize removal of the biochemical section to COD and ammonia nitrogen；In technique
Progress dimethylamine recycling preferential to dimethylamine waste water, alleviates in waste water low molecule organic amine to the negative shadow of biosystem
Ring, in low concentration, it is only necessary to which the shorter biological metabolism time is allowed to ammonification.
Processing material is subjected to materialized pretreatment after the step 1, the catalysis and micro-electrolysis and catalysis that materialized pretreatment uses
Combination technique is aoxidized, the first step make use of the reproducibility of iron, the electrochemistry collective effect of iron by iron carbon galvanic interaction
Light electrolysis purifies waste water, i.e., under the conditions of existing for acid and metallic catalyst, is internally formed numerous micro-current reactor, makes
Organic matter in waste water is reduced oxidation in the presence of micro-current；Catalysis oxidation utilizes rail carbon micro-electrolytic processes dissolving afterwards
Ferrous ion makees catalyst, adds clean oxidation agent hydrogen peroxide, forms class fenton systems, further catalytic oxidation-reduction waste water
In organic matter, be allowed to chain rupture, broken ring；Afterwards carry out waste water in and coagulating sedimentation.
The feature of comprehensive agricultural chemicals waste water, the biochemical process is using one-level aerobe aeration, hydrolysis acidification, hydrolysis acid
Change, the process combination that two level aerobe aeration, chemical advanced oxidation and physical chemistry are aoxidized, is aerated；The first order is aerobic (just
Expose) effect in the S2- contained in alkaline waste water, the effect being metabolized by bio-aeration forms positive sulfate radical, reduces
The generation for the solid waste that materializing strategy is brought；It is and preferentially biological to the organic matter with bio-toxicity in the first order is aerobic
Degraded, reduce bio-toxicity；The aerobic HRT of the first order is less than 24h, controls water outlet COD≤3000mg/L, COD clearance >=50%,
The first order is aerobic to be combined microbe to screen technology with biomembrane reaction technology, with the addition of in Aerobic Pond effectively compound microbial and
The Powdered Activated Carbon that reaming is modified, strengthen microorganism and the mixing mass transfer intensity of carrier and waste water, realize noxious material in waste water
Degraded.
Containing organic amine and heterocycle type organic, it is necessary to make organic amine and miscellaneous by efficient hydrolysis acidification in the waste water
Ring type organic ammonification, progress two level is aerobic afterwards, passes through the organic matter in microbial degradation waste water；Three-level is aerobic again thoroughly goes
Except most organic amine ammonification in waste water, ammonia nitrogen is discharged, now the BOD in waste water is almost depleted；Afterwards using chemistry
Advanced oxidation and the method for physical chemistry oxidation are further degraded to organic matter remaining in waste water, are improved B/C ratios, are improved
BOD in waste water, and this section realizes chemical dephosphorization；Finally by BAF to the residual organic substances and ammonia in waste water
Nitrogen removes.
The LBQ-ABR anaerobic techniques are combined microbe to screen technology with anaerobic reactor engineering technology, in anaerobic pond
Effectively compound microbial and the granular activated carbon (volcanic rock) that reaming is modified are with the addition of, is given up for high concentration saliferous organic chemical industry
The efficient anaerobe reaction process of water process development；Using LBQ-ABR itself deflection plate the characteristics of, give full play to indigo plant must
The multifarious feature of clear complex microorganism, corresponding dominant population is formed in each cut-off, realized in anaerobism section efficient
The decomposition chain of hydrolysis acidification, it is acidified the hydrolysis of organic matter in waste water.
The two level is aerobic using microbe to screen technology is combined with biomembrane reaction technology, and height is with the addition of in Aerobic Pond
Complex microorganism and the Powdered Activated Carbon of reaming modification are imitated, strengthens microorganism and the mixing mass transfer intensity of carrier and waste water.
Fenton oxidation technologies are used in the biochemical process section, is aoxidized by fenton and further improved in waste water
BOD cuts down COD simultaneously, controls influent COD≤800mg/L, water outlet COD300mg/L, and chemistry is carried out during neutralization precipitation
Dephosphorization, ensure that water outlet total phosphorus is up to standard, meet the requirements.
The three-level is aerobic mainly to caused ammonia nitrogen after the ammonia nitrogen in waste water and FEOL ammonification nitrify instead
Should, ammonia nitrogen is removed, while remaining organic matter is degraded, it is ensured that the COD and ammonia nitrogen in waste water are up to standard, control ammonia nitrogen water inlet
Less than 200mg/L, water outlet ammonia nitrogen is less than 15mg/L.
The biochemical treatment, increase afterwards NaClO and charcoal absorption oxidizing process further reduce pollutant discharge it is dense
Degree, it is 51.2~72.8% to control the COD clearances under the conditions of 100~200mg/L of COD water inlets, water outlet COD50~100mg/L.
The beneficial effects of the invention are as follows：The characteristics of for waste water, with reference to the technical requirements of handling process of the present invention, the present invention
With advantages below：
(1) handling process of system has specific aim, the stable pollutant effectively removed in waste water, it is ensured that system reaches
The requirement of discharge standard；
(2) because pesticide chemical waste water quality, water is complicated, content of organics is high the characteristics of, processing system, which has, efficiently may be used
The water quality leaned on, runoff investigation unit, can protect the even running of subsequent processing units；
(3) reasonability of the treatment facility of waste water treatment process and structures, the workload of investment and construction is reduced；
(4) excess sludge of biological wastewater treatment employs efficient mechanical dehydration mode, reduces Treatment of Sludge part
Labor intensity and occupation of land；
(5) chemical agent needed for processing system is simplified the daily management of processing system, brought using conventional medicament
The economic benefit of effect；
(6) processing procedure uses advanced reliable system equipment, reduces the workload of system maintenance, the extension device life-span,
To ensure the long-term normal operation of system；Processing system should have flexible regulating power, adapt to the needs of production.
Brief description of the drawings
Fig. 1 is sewage treatment technology process figure；
Embodiment：
In order that the technical means, the inventive features, the objects and the advantages of the present invention are easy to understand, tie below
Specific embodiment is closed, the present invention is expanded on further.
Embodiment 1：
The technical problems to be solved by the invention are realized using following technical scheme：
Pesticide chemical waste water treatment process：Pesticide chemical waste water treatment process includes procedure below：
PH regulations, light electrolysis, catalysis oxidation, LBQ- one-levels are aerobic, LBQ-ABR anaerobism, LBQ- two levels are aerobic, AOP, aeration
Biofilter, deep oxidation；
1st, carry out deamination is collected separately in high ammonia-nitrogen wastewater, and using negative pressure deamination or normal temperature stripping ammonia, rear progress materialization is located in advance
Reason, wastewater treatment, 731~1341mg/L of water outlet ammonia nitrogen after processing are carried out by biochemical process；
2nd, cyanide wastewater is through adding the hydrogen peroxide (levels 20%) of 2% mass percent, with 200 milliliters of flow/
Hour is pumped into catalysis and micro-electrolysis tower, and catalysis and micro-electrolysis carries out wastewater treatment by biochemical process, and rear progress acid-base accommodation catalysis is micro-
After electrolysis, follow-up to use LBQ-ABR biochemical process, LBQ anaerobic techniques, LBQ aerobic process is to COD removals, control LBQ anaerobism
Technique is to COD clearances >=55%, LBQ aerobic process to COD clearance >=65%；
3rd, wastewater treatment is carried out by biochemical process after waste water, other waste water mix with deamination waste water after recovery dimethylamine；
Light electrolysis, then pre- catalysis oxidation are first carried out, follow-up aeration, then the rear directly progress continuous aerobic process of LBQ-, COD is removed, to COD
Clearance is controlled >=80%；
4th, SBR/ outputted aerobic waters, which are collected, carries out two level Fenton oxidation, removes COD；It is follow-up to carry out two level LBQ-SBR, continue
COD is removed, controls water outlet COD≤200mg/L, water outlet ammonia nitrogen<25mg/L.
Wherein described high ammonia-nitrogen wastewater carries out ammonia still process pretreatment, makes to be less than 150mg/ into the ammonia nitrogen in biochemical system waste water
L, total nitrogen are less than 300mg/L, it is ensured that the C/N of biochemical section is than that rationally, can realize removal of the biochemical section to COD and ammonia nitrogen；In technique
Progress dimethylamine recycling preferential to dimethylamine waste water, alleviates in waste water low molecule organic amine to the negative shadow of biosystem
Ring, in low concentration, it is only necessary to which the shorter biological metabolism time is allowed to ammonification.
Processing material is subjected to materialized pretreatment after the step 1, the catalysis and micro-electrolysis and catalysis that materialized pretreatment uses
Combination technique is aoxidized, the first step make use of the reproducibility of iron, the electrochemistry collective effect of iron by iron carbon galvanic interaction
Light electrolysis purifies waste water, i.e., under the conditions of existing for acid and metallic catalyst, is internally formed numerous micro-current reactor, makes
Organic matter in waste water is reduced oxidation in the presence of micro-current；Catalysis oxidation utilizes rail carbon micro-electrolytic processes dissolving afterwards
Ferrous ion makees catalyst, adds clean oxidation agent hydrogen peroxide, forms class fenton systems, further catalytic oxidation-reduction waste water
In organic matter, be allowed to chain rupture, broken ring；Afterwards carry out waste water in and coagulating sedimentation.
The feature of comprehensive agricultural chemicals waste water, the biochemical process is using one-level aerobe aeration, hydrolysis acidification, hydrolysis acid
Change, the process combination that two level aerobe aeration, chemical advanced oxidation and physical chemistry are aoxidized, is aerated；The first order is aerobic (just
Expose) effect in the S2- contained in alkaline waste water, the effect being metabolized by bio-aeration forms positive sulfate radical, reduces
The generation for the solid waste that materializing strategy is brought；It is and preferentially biological to the organic matter with bio-toxicity in the first order is aerobic
Degraded, reduce bio-toxicity；The aerobic HRT of the first order is less than 24h, controls water outlet COD≤3000mg/L, COD clearance >=50%,
The first order is aerobic to be combined microbe to screen technology with biomembrane reaction technology, with the addition of in Aerobic Pond effectively compound microbial and
The Powdered Activated Carbon that reaming is modified, strengthen microorganism and the mixing mass transfer intensity of carrier and waste water, realize noxious material in waste water
Degraded.
Containing organic amine and heterocycle type organic, it is necessary to make organic amine and miscellaneous by efficient hydrolysis acidification in the waste water
Ring type organic ammonification, progress two level is aerobic afterwards, passes through the organic matter in microbial degradation waste water；Three-level is aerobic again thoroughly goes
Except most organic amine ammonification in waste water, ammonia nitrogen is discharged, now the BOD in waste water is almost depleted；Afterwards using chemistry
Advanced oxidation and the method for physical chemistry oxidation are further degraded to organic matter remaining in waste water, are improved B/C ratios, are improved
BOD in waste water, and this section realizes chemical dephosphorization；Finally by BAF to the residual organic substances and ammonia in waste water
Nitrogen removes.
The LBQ-ABR anaerobic techniques are combined microbe to screen technology with anaerobic reactor engineering technology, in anaerobic pond
Effectively compound microbial and the granular activated carbon (volcanic rock) that reaming is modified are with the addition of, is given up for high concentration saliferous organic chemical industry
The efficient anaerobe reaction process of water process development；Using LBQ-ABR itself deflection plate the characteristics of, give full play to indigo plant must
The multifarious feature of clear complex microorganism, corresponding dominant population is formed in each cut-off, realized in anaerobism section efficient
The decomposition chain of hydrolysis acidification, it is acidified the hydrolysis of organic matter in waste water.
The two level is aerobic using microbe to screen technology is combined with biomembrane reaction technology, and height is with the addition of in Aerobic Pond
Complex microorganism and the Powdered Activated Carbon of reaming modification are imitated, strengthens microorganism and the mixing mass transfer intensity of carrier and waste water.
Fenton oxidation technologies are used in the biochemical process section, is aoxidized by fenton and further improved in waste water
BOD cuts down COD simultaneously, controls influent COD≤800mg/L, water outlet COD300mg/L, and chemistry is carried out during neutralization precipitation
Dephosphorization, ensure that water outlet total phosphorus is up to standard, meet the requirements.
The three-level is aerobic mainly to caused ammonia nitrogen after the ammonia nitrogen in waste water and FEOL ammonification nitrify instead
Should, ammonia nitrogen is removed, while remaining organic matter is degraded, it is ensured that the COD and ammonia nitrogen in waste water are up to standard, control ammonia nitrogen water inlet
Less than 200mg/L, water outlet ammonia nitrogen is less than 15mg/L.
The biochemical treatment, increase afterwards NaClO and charcoal absorption oxidizing process further reduce pollutant discharge it is dense
Degree, it is 51.2~72.8% to control the COD clearances under the conditions of 100~200mg/L of COD water inlets, water outlet COD50~100mg/L.
Embodiment 2：
The technical problems to be solved by the invention are realized using following technical scheme：
Pesticide chemical waste water treatment process：Pesticide chemical waste water treatment process includes procedure below：
PH regulations, light electrolysis, catalysis oxidation, LBQ- one-levels are aerobic, LBQ-ABR anaerobism, LBQ- two levels are aerobic, AOP, aeration
Biofilter, deep oxidation；
1st, carry out deamination is collected separately in high ammonia-nitrogen wastewater, and using negative pressure deamination or normal temperature stripping ammonia, rear progress materialization is located in advance
Reason, wastewater treatment, 731~1341mg/L of water outlet ammonia nitrogen after processing are carried out by biochemical process；
2nd, cyanide wastewater is through adding the hydrogen peroxide (levels 25%) of 3% mass percent, with 200 milliliters of flow/
Hour is pumped into catalysis and micro-electrolysis tower, and catalysis and micro-electrolysis carries out wastewater treatment by biochemical process, and rear progress acid-base accommodation catalysis is micro-
After electrolysis, follow-up to use LBQ-ABR biochemical process, LBQ anaerobic techniques, LBQ aerobic process is to COD removals, control LBQ anaerobism
Technique is to COD clearances >=55%, LBQ aerobic process to COD clearance >=65%；
3rd, wastewater treatment is carried out by biochemical process after waste water, other waste water mix with deamination waste water after recovery dimethylamine；
Light electrolysis, then pre- catalysis oxidation are first carried out, follow-up aeration, then the rear directly progress continuous aerobic process of LBQ-, COD is removed, to COD
Clearance is controlled >=80%；
4th, SBR/ outputted aerobic waters, which are collected, carries out two level Fenton oxidation, removes COD；It is follow-up to carry out two level LBQ-SBR, continue
Except COD, water outlet COD≤200mg/L, water outlet ammonia nitrogen are controlled<25mg/L.
Wherein described high ammonia-nitrogen wastewater carries out ammonia still process pretreatment, makes to be less than 150mg/ into the ammonia nitrogen in biochemical system waste water
L, total nitrogen are less than 300mg/L, it is ensured that the C/N of biochemical section is than that rationally, can realize removal of the biochemical section to COD and ammonia nitrogen；In technique
Progress dimethylamine recycling preferential to dimethylamine waste water, alleviates in waste water low molecule organic amine to the negative shadow of biosystem
Ring, in low concentration, it is only necessary to which the shorter biological metabolism time is allowed to ammonification.
Processing material is subjected to materialized pretreatment after the step 1, the catalysis and micro-electrolysis and catalysis that materialized pretreatment uses
Combination technique is aoxidized, the first step make use of the reproducibility of iron, the electrochemistry collective effect of iron by iron carbon galvanic interaction
Light electrolysis purifies waste water, i.e., under the conditions of existing for acid and metallic catalyst, is internally formed numerous micro-current reactor, makes
Organic matter in waste water is reduced oxidation in the presence of micro-current；Catalysis oxidation utilizes rail carbon micro-electrolytic processes dissolving afterwards
Ferrous ion makees catalyst, adds clean oxidation agent hydrogen peroxide, forms class fenton systems, further catalytic oxidation-reduction waste water
In organic matter, be allowed to chain rupture, broken ring；Afterwards carry out waste water in and coagulating sedimentation.
The feature of comprehensive agricultural chemicals waste water, the biochemical process is using one-level aerobe aeration, hydrolysis acidification, hydrolysis acid
Change, the process combination that two level aerobe aeration, chemical advanced oxidation and physical chemistry are aoxidized, is aerated；The first order is aerobic (just
Expose) effect in the S2- contained in alkaline waste water, the effect being metabolized by bio-aeration forms positive sulfate radical, reduces
The generation for the solid waste that materializing strategy is brought；It is and preferentially biological to the organic matter with bio-toxicity in the first order is aerobic
Degraded, reduce bio-toxicity；The aerobic HRT of the first order is less than 24h, controls water outlet COD≤3000mg/L, COD clearance >=50%,
The first order is aerobic to be combined microbe to screen technology with biomembrane reaction technology, with the addition of in Aerobic Pond effectively compound microbial and
The Powdered Activated Carbon that reaming is modified, strengthen microorganism and the mixing mass transfer intensity of carrier and waste water, realize noxious material in waste water
Degraded.
Containing organic amine and heterocycle type organic, it is necessary to make organic amine and miscellaneous by efficient hydrolysis acidification in the waste water
Ring type organic ammonification, progress two level is aerobic afterwards, passes through the organic matter in microbial degradation waste water；Three-level is aerobic again thoroughly goes
Except most organic amine ammonification in waste water, ammonia nitrogen is discharged, now the BOD in waste water is almost depleted；Afterwards using chemistry
Advanced oxidation and the method for physical chemistry oxidation are further degraded to organic matter remaining in waste water, are improved B/C ratios, are improved
BOD in waste water, and this section realizes chemical dephosphorization；Finally by BAF to the residual organic substances and ammonia in waste water
Nitrogen removes.
The LBQ-ABR anaerobic techniques are combined microbe to screen technology with anaerobic reactor engineering technology, in anaerobic pond
Effectively compound microbial and the granular activated carbon (volcanic rock) that reaming is modified are with the addition of, is given up for high concentration saliferous organic chemical industry
The efficient anaerobe reaction process of water process development；Using LBQ-ABR itself deflection plate the characteristics of, give full play to indigo plant must
The multifarious feature of clear complex microorganism, corresponding dominant population is formed in each cut-off, realized in anaerobism section efficient
The decomposition chain of hydrolysis acidification, it is acidified the hydrolysis of organic matter in waste water.
The two level is aerobic using microbe to screen technology is combined with biomembrane reaction technology, and height is with the addition of in Aerobic Pond
Complex microorganism and the Powdered Activated Carbon of reaming modification are imitated, strengthens microorganism and the mixing mass transfer intensity of carrier and waste water.
Fenton oxidation technologies are used in the biochemical process section, is aoxidized by fenton and further improved in waste water
BOD cuts down COD simultaneously, controls influent COD≤800mg/L, water outlet COD300mg/L, and chemistry is carried out during neutralization precipitation
Dephosphorization, ensure that water outlet total phosphorus is up to standard, meet the requirements.
The three-level is aerobic mainly to caused ammonia nitrogen after the ammonia nitrogen in waste water and FEOL ammonification nitrify instead
Should, ammonia nitrogen is removed, while remaining organic matter is degraded, it is ensured that the COD and ammonia nitrogen in waste water are up to standard, control ammonia nitrogen water inlet
Less than 200mg/L, water outlet ammonia nitrogen is less than 15mg/L.
The biochemical treatment, increase afterwards NaClO and charcoal absorption oxidizing process further reduce pollutant discharge it is dense
Degree, it is 51.2~72.8% to control the COD clearances under the conditions of 100~200mg/L of COD water inlets, water outlet COD50~100mg/L.
It is as follows by embodiment 1 and the handling process of embodiment 2, detection wastewater treatment each stage each parametric results：
The water treatment effect of table 1
From embodiment 1 and the testing result of embodiment 2, wastewater from chemical industry passes through pesticide chemical waste water treatment process, waste water
By ammonia nitrogen 36927mg/L in original waste water, water outlet 13627mg/L is less than 15mg/L by the processing water outlet ammonia nitrogen that touches the mark, and goes out
Water<100mg/L, wastewater discharge standard is reached by handling process, reduce waste water and environment and the mankind are endangered, make all things on earth life, product
Pole response country to the policy of environmentally friendly strict demand, intends carrying out upgrading, technology to existing waste water disposal facility in recent years
After upgrading, waste water processing station can stable and high effective operation, and operating cost reduces, and automaticity is high.
The general principle and principal character and advantages of the present invention of the present invention has been shown and described above.The technology of the industry
Personnel are it should be appreciated that the present invention is not limited to the above embodiments, and the simply explanation described in above-described embodiment and specification is originally
The principle of invention, without departing from the spirit and scope of the present invention, various changes and modifications of the present invention are possible, these changes
Change and improvement all fall within the protetion scope of the claimed invention.The claimed scope of the invention by appended claims and its
Equivalent thereof.
Claims (6)
- A kind of 1. pesticide chemical waste water treatment process, it is characterised in that：Pesticide chemical waste water treatment process includes procedure below：PH regulations, light electrolysis, catalysis oxidation, LBQ- one-levels are aerobic, LBQ-ABR anaerobism, LBQ- two levels are aerobic, AOP, aeration and biological Filter tank, deep oxidation.
- 2. pesticide chemical waste water treatment process according to claim 1, it is characterised in that：Pesticide chemical waste water treatment process Comprise the following steps：(1) carry out deamination is collected separately in high ammonia-nitrogen wastewater, using negative pressure deamination or normal temperature stripping ammonia, carries out materialized pretreatment afterwards, Wastewater treatment, 731~1341mg/L of water outlet ammonia nitrogen after processing are carried out by biochemical process；(2) hydrogen peroxide (levels 20-40%) of the cyanide wastewater through 2~5% mass percents of addition, with the milli of flow 200 Catalysis and micro-electrolysis tower l/h is pumped into, catalysis and micro-electrolysis passes through biochemical process and carries out wastewater treatment, rear to carry out acid-base accommodation catalysis After light electrolysis, follow-up to use LBQ-ABR biochemical process, LBQ anaerobic techniques, LBQ aerobic process is to COD removals, control LBQ anaerobism Technique is to COD clearances >=55%, LBQ aerobic process to COD clearance >=65%；(3) wastewater treatment is carried out by biochemical process after waste water, other waste water mix with deamination waste water after recovery dimethylamine；It is advanced Row light electrolysis, then pre- catalysis oxidation, follow-up aeration, then the rear directly progress continuous aerobic process of LBQ-, remove COD, COD are removed Rate is controlled >=80%；(4) SBR/ outputted aerobic waters, which are collected, carries out two level Fenton oxidation, removes COD；It is follow-up to carry out two level LBQ-SBR, continue to remove COD, control water outlet COD≤200mg/L, water outlet ammonia nitrogen<25mg/L.
- 3. pesticide chemical waste water treatment process according to claim 2, it is characterised in that：Wherein described high ammonia-nitrogen wastewater enters Row ammonia still process pre-processes, and makes to be less than 150mg/L into the ammonia nitrogen in biochemical system waste water, total nitrogen is less than 300mg/L, it is ensured that biochemical section C/N is than that rationally, can realize removal of the biochemical section to COD and ammonia nitrogen；Progress dimethylamine recovery preferential to dimethylamine waste water in technique Processing, alleviate negative effect to biosystem of low molecule organic amine in waste water, in low concentration, it is only necessary to shorter biological generation Thanking to the time is allowed to ammonification.
- 4. pesticide chemical waste water treatment process according to claim 2, it is characterised in that：By processed material after the step 1 Material carries out materialized pretreatment, and the catalysis and micro-electrolysis and catalysis oxidation combination technique, the first step that materialized pretreatment uses pass through iron carbon Galvanic interaction, the reproducibility of iron, the electrochemistry collective effect of iron make use of to carry out light electrolysis purification waste water, i.e., in acid and gold Under the conditions of metal catalyst is existing, numerous micro-current reactor is internally formed, makes the organic matter in waste water in the work of micro-current Oxidation is reduced under；The ferrous ion that catalysis oxidation is dissolved using rail carbon micro-electrolytic processes afterwards makees catalyst, adds cleaning Oxidant hydrogen peroxide, class fenton systems are formed, the organic matter in further catalytic oxidation-reduction waste water, be allowed to chain rupture, broken ring； Afterwards carry out waste water in and coagulating sedimentation.
- 5. pesticide chemical waste water treatment process according to claim 2, it is characterised in that：The feature of comprehensive agricultural chemicals waste water, The biochemical process is advanced using one-level aerobe aeration, hydrolysis acidification, hydrolysis acidification, two level aerobe aeration, chemistry Oxidation and physical chemistry oxidation, the process combination of aeration；The effect of the first order aerobic (just exposing) is containing in alkaline waste water S2-, by bio-aeration be metabolized effect form positive sulfate radical, reduce the production for the solid waste that materializing strategy is brought It is raw；And it is preferentially biodegradable to the organic matter with bio-toxicity in the first order is aerobic, reduce bio-toxicity；The first order is aerobic HRT is less than 24h, controls water outlet COD≤3000mg/L, COD clearance >=50%, the first order it is aerobic by microbe to screen technology with Biomembrane reaction technology is combined, and effectively compound microbial and the Powdered Activated Carbon that reaming is modified are with the addition of in Aerobic Pond, is strengthened micro- Biology and the mixing mass transfer intensity of carrier and waste water, realize the degraded of noxious material in waste water.
- 6. pesticide chemical waste water treatment process according to claim 2, it is characterised in that：Contain organic amine in the waste water With heterocycle type organic, it is necessary to make organic amine and heterocycle type organic ammonification by efficient hydrolysis acidification, two level is carried out afterwards It is aerobic, pass through the organic matter in microbial degradation waste water；Three-level is aerobic again thoroughly removes most organic amine ammonification in waste water, Ammonia nitrogen is discharged, now the BOD in waste water is almost depleted；The method aoxidized afterwards using chemical advanced oxidation and physical chemistry Organic matter remaining in waste water is further degraded, improves B/C ratios, improves the BOD in waste water, and this section realizes chemistry Dephosphorization；Finally by BAF to the residual organic substances and ammonia nitrogen removal in waste water.
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| CN112390335A (en) * | 2020-11-02 | 2021-02-23 | 广西金妙松环保工程有限公司 | Efficient phosphorus removal filler medium capable of generating micro-potential and preparation method thereof |
| CN113371881A (en) * | 2021-06-22 | 2021-09-10 | 中石化南京化工研究院有限公司 | Treatment method of process wastewater generated in one-step synthesis of N-phenylmaleimide |
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