CN106746356A - A kind of agricultural chemicals waste water processing system and handling process - Google Patents
A kind of agricultural chemicals waste water processing system and handling process Download PDFInfo
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- CN106746356A CN106746356A CN201710049552.5A CN201710049552A CN106746356A CN 106746356 A CN106746356 A CN 106746356A CN 201710049552 A CN201710049552 A CN 201710049552A CN 106746356 A CN106746356 A CN 106746356A
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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
- C02F1/24—Treatment of water, waste water, or sewage by flotation
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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
- C02F1/44—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis
- C02F1/442—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis by nanofiltration
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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
- C02F1/44—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis
- C02F1/444—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis by ultrafiltration or microfiltration
-
- 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
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
- C02F1/5281—Installations for water purification using chemical agents
-
- 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
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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
-
- 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
-
- 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
Abstract
The invention discloses a kind of agricultural chemicals waste water processing system, it is characterised in that：The structures such as water pot, the first booster pump, the second booster pump, high pressure NF membrane, catalytic oxidizing equipment, two grades of Aerobic Ponds are produced including regulating reservoir, coagulative precipitation tank, anaerobic pond, Aerobic Pond, second pond, surge tank, dehvery pump, tubular ultra-filtration membrane, ultrafiltration.Present invention additionally comprises a kind of pesticides waste water treatment process.Processing system of the present invention and handling process, for agricultural chemicals waste water treatment, it is possible to achieve agricultural chemicals waste water reaches national grade one discharge standard and realizes the reuse of part agricultural chemicals waste water；Simultaneously using tubular ultra-filtration membrane+high pressure nanofiltration membrane component treatment, secondary clarifier effluent is without pretreatment（Such as coagulating sedimentation, multi-medium filtering）, the advantages of system run all right and aquifer yield are big, the cleaning frequency is long.
Description
Technical field
The present invention relates to agricultural chemicals waste water process field, more particularly to a kind of agricultural chemicals waste water processing system and handling process.
Background technology
Agricultural chemicals has played vital effect in agricultural production, has effectively promoted the development of modern agriculture.But,
Substantial amounts of agricultural chemicals waste water can be produced in the production process of agricultural chemicals, according to incompletely statistics, the agriculture of national pesticide industry discharge every year
Medicine waste water is about more than ten00000000 tons, and wherein agricultural chemicals waste water handling rate is processed and up to standard only account for processed percent less than 10%
It is several.
Agricultural chemicals waste water has following several features：1) organic concentration is high, and the fluctuation of water outlet COD indexs is big and suspension content
It is high；2) pollutant component is complicated contains a large amount of inorganic salts simultaneously.Agricultural chemicals waste water is because have synthetic complicated component, and salt content is high
The problems such as, refractory organicses are strong, and the fluctuation of water outlet COD indexs is big and suspension content is high；Discharge of wastewater is difficult to reach country one always
Level discharge standard.
The conventional processing systems of current agricultural chemicals waste water are heavy for regulating reservoir-coagulative precipitation tank-anaerobic pond-one-level Aerobic Pond-two
Pond-flotation tank-- two grades of catalytic oxidizing equipment Aerobic Pond-three sinks pond-discharge.But because the product water of second pond is directly entered gas
Advanced oxidation is carried out in floating pond, catalytic oxidizing equipment, the load of catalytic oxidizing equipment is considerably increased, simultaneously because agricultural chemicals waste water
Complicated component, salt content is high, and the agricultural chemicals waste water after treatment is still difficult to reach national grade one discharge standard.At present, also there is knot
The pesticides waste water treatment process of the related film device of conjunction, but it is simultaneously also universal because the problems such as pre-processing difficulty, high energy consumption is difficult to
Obtain the long-term use of reasonably stability.
The content of the invention
Regarding to the issue above, reached it is an object of the invention to provide a kind of waste water that can be realized after treatment country-level
Discharge standard, and system run all right, cleaning frequency agricultural chemicals waste water processing system and handling process long.
To reach above-mentioned purpose, technical scheme proposed by the invention is：A kind of agricultural chemicals waste water processing system, its feature exists
In：Including the regulating reservoir being connected with agricultural chemicals waste water discharge tube by pipeline, the delivery port of described regulating reservoir is connected by pipeline
The water inlet of coagulative precipitation tank is connect, the delivery port of coagulative precipitation tank connects the water inlet of anaerobic pond by pipeline；Described anaerobism
The delivery port in pond connects one-level Aerobic Pond water inlet by pipeline, and the delivery port of described one-level Aerobic Pond connects two by pipeline
The water inlet in heavy pond；The delivery port of described second pond passes through the water inlet that pipeline connects surge tank, and described surge tank goes out
The mouth of a river is connected by pipeline with the water inlet of dehvery pump, and the delivery port of described dehvery pump passes through connecting pipe of pipeline formula milipore filter group
Part water inlet；The product mouth of a river of described tubular ultrafiltration membrane module connects ultrafiltration and produces water pot by pipeline；Water pot is produced in described ultrafiltration
Delivery port connects the water inlet of the first booster pump by pipeline, and the delivery port of the first described booster pump connects second by pipeline
The water inlet of booster pump；The delivery port of the second described booster pump connects high pressure nanofiltration membrane component water inlet by pipeline；It is described
The product water out of high pressure nanofiltration membrane component nanofiltration connected by pipeline produce water pot, the concentrated water of described high pressure nanofiltration membrane component goes out
Mouth connects the water inlet of the second booster pump by reflux line, and the water inlet of catalytic oxidizing equipment is connected by concentrating pipeline；Institute
The delivery port of the catalytic oxidizing equipment stated connects two grades of water inlets of Aerobic Pond；The heavy pond of delivery port connection three of described Aerobic Pond
Water inlet.
Preferably, the tubular ultra-filtration membrane molecular cut off in described tubular ultrafiltration membrane module is the dalton of 1-25 ten thousand.
Preferably, described high pressure nanofiltration membrane component is the high pressure resistant organic nanofiltration membrane component that pressure-resistant scope is 0-90bar；
Nanofiltration retaining molecular weight is 150-350 dalton.
Preferably, the first described booster pump is plunger displacement pump.
Preferably, the second described booster pump is high pressure resistant centrifugal pump.
Preferably, described tubular ultrafiltration membrane module German MEMOS companies produce with open cross-flow runner, from prop up
Support membrane-replaceable shell-tube type hyperfiltration membrane assembly, can effectively prevent membrane tube to be blocked using this kind of membrane module, and with product water
Amount is big, flux stabilized, cleaning frequency are long, can be with cleaning in two months once.
Preferably, the concentrated water outlet of described tubular ultrafiltration membrane module connects flotation tank water inlet by pipeline, described
The delivery port of flotation tank connects the water inlet of catalytic oxidizing equipment by pipeline.
Present invention additionally comprises the handling process after a kind of agricultural chemicals waste water biochemical treatment, it is characterised in that comprise the following steps：
Step 1：After the adjusted pond water quality adjustment of agricultural chemicals waste water, enter slow after sequentially passing through anaerobism, Aerobic Process for Treatment, sedimentation in secondary sedimentation tank
Rush in tank；
Step 2：Waste water in surge tank is input into tubular ultrafiltration membrane module by pipeline through dehvery pump, is obtained ultrafiltration and is produced water and ultrafiltration
Concentrated water；Tubular ultra-filtration membrane molecular cut off in described tubular ultrafiltration membrane module is the dalton of 1-25 ten thousand；
Step 3：Ultrafiltration produces water after the first booster pump and the second booster pump are pressurized to 70-80bar, into high pressure NF membrane group
High power circulation concentration is carried out in part, concentrated water returns to the water inlet circular treatment of the second booster pump in concentration process, to be concentrated to dense
Demagnification number obtains nanofiltration concentrated water after reaching 9-10 times and water is produced in nanofiltration, and water discharge or reuse are produced in nanofiltration；
Step 4：After carrying out advanced catalytic oxidation in nanofiltration concentrated water water inlet catalytic oxidizing equipment, obtain catalysis oxidation and produce water；Catalysis oxygen
Change and produce water again by after the oxidation of secondary oxidation pond, into after three heavy ponds precipitations, qualified discharge.
Preferably, described tubular ultrafiltration membrane module German MEMOS companies produce with open cross-flow runner, from prop up
Support membrane-replaceable shell-tube type hyperfiltration membrane assembly, can effectively prevent membrane tube to be blocked, and with aquifer yield is big, flux stabilized,
Cleaning frequency is long, can be with cleaning in two months once.
Preferably, described high pressure nanofiltration membrane component is the high pressure resistant organic nanofiltration membrane component that pressure-resistant scope is 0-90bar；
Nanofiltration retaining molecular weight is 150-350 dalton.
Preferably, also, by air-flotation process, solid impurity and suspension are removed, so including by the ultrafiltration concentrated water in step 2
The step of carrying out advanced oxidation into catalytic oxidizing equipment afterwards and process.
Using above-mentioned technical proposal, agricultural chemicals waste water processing system of the present invention and handling process, for agricultural chemicals waste water
Treatment, it is possible to achieve agricultural chemicals waste water reaches national grade one discharge standard and realizes the reuse of part agricultural chemicals waste water；Simultaneously using pipe
Formula milipore filter+high pressure nanofiltration membrane component treatment, secondary clarifier effluent is without pretreatment（Such as coagulating sedimentation, multi-medium filtering）, be
System is stable and the advantages of aquifer yield is big, the cleaning frequency is long.
Brief description of the drawings
Fig. 1 is agricultural chemicals waste water processing system schematic diagram of the present invention.
Specific embodiment
With reference to the accompanying drawings and detailed description, the present invention will be further described.
As shown in figure 1, agricultural chemicals waste water processing system of the present invention, including：By pipeline and agricultural chemicals waste water delivery pipe
The connected regulating reservoir 101 in road, the delivery port of regulating reservoir 101 connects the water inlet of coagulative precipitation tank 102, coagulating sedimentation by pipeline
The delivery port in pond 102 connects the water inlet of anaerobic pond 103 by pipeline；The delivery port of anaerobic pond 103 connects one-level by pipeline
The water inlet of Aerobic Pond 104, the delivery port of one-level Aerobic Pond 104 connects the water inlet of second pond 105 by pipeline；Second pond 105
Delivery port pass through pipeline connect surge tank 106 water inlet；
The delivery port of surge tank 106 is connected by pipeline with the water inlet of dehvery pump 107, and the delivery port of dehvery pump 107 is by pipe
Road connects the water inlet of tubular ultrafiltration membrane module 108；The product mouth of a river of tubular ultrafiltration membrane module 108 connects ultrafiltration and produces water by pipeline
Tank 109；The concentrated water outlet of tubular ultrafiltration membrane module 108 connects the water inlet of flotation tank 116, the water outlet of flotation tank 116 by pipeline
Mouth connects the water inlet of catalytic oxidizing equipment 117 by pipeline；Tubular ultrafiltration membrane module has anti-pollution, and water inlet is without especially locating
Reason, the advantages of the cleaning frequency is long, the tubular ultra-filtration membrane molecular cut off in tubular ultrafiltration membrane module in the present invention is 1-25 ten thousand
Dalton；Particularly preferred MEMOS companies of Germany product with open cross-flow runner, self-supporting membrane-replaceable shell-tube type milipore filter
Component, can effectively prevent membrane tube to be blocked using this kind of membrane module, and with aquifer yield is big, flux stabilized, the cleaning frequency
It is long, can be with cleaning in two months once；
The water inlet that the delivery port of water pot 109 connects the first booster pump 110 by pipeline, the water outlet of the first booster pump 110 are produced in ultrafiltration
Mouth connects the water inlet of the second booster pump 111 by pipeline；The delivery port of the second booster pump 111 connects high pressure nanofiltration by pipeline
The water inlet of membrane module 112；The product water out of high pressure nanofiltration membrane component 112 connects nanofiltration and produces water pot 113, described height by pipeline
The concentrated water outlet of nanofiltration membrane component 112 is pressed by the water inlet of the second booster pump 111 of connection of reflux line 114, by concentration tube
Road 115 connects the water inlet of catalytic oxidizing equipment 117；The delivery port of catalytic oxidizing equipment 117 connects entering for two grades of Aerobic Ponds 118
The mouth of a river；The heavy water inlet of pond 119 of delivery port connection three of Aerobic Pond 118；Wherein, high pressure nanofiltration membrane component 112 is preferably pressure-resistant model
Enclose the high pressure resistant organic nanofiltration membrane component for 0-90bar；Nanofiltration retaining molecular weight is 150-350 dalton；First booster pump
110 is plunger displacement pump；Second booster pump 111 is high pressure resistant centrifugal pump.
Handling process after agricultural chemicals waste water biochemical treatment of the present invention, for agricultural chemicals waste water treatment, including following step
Suddenly：
Step 1：After the adjusted pond water quality adjustment of agricultural chemicals waste water, enter slow after sequentially passing through anaerobism, Aerobic Process for Treatment, sedimentation in secondary sedimentation tank
Rush in tank；
Step 2：Waste water in surge tank is input into tubular ultrafiltration membrane module by pipeline through dehvery pump, is obtained ultrafiltration and is produced water and ultrafiltration
Concentrated water；Tubular ultra-filtration membrane molecular cut off in described tubular ultrafiltration membrane module is the dalton of 1-25 ten thousand；Tubular type ultrafiltration has
The advantages of anti-pollution, water inlet sewage specially treated, the tubular ultrafiltration membrane module of the step particularly preferably uses MEMOS companies of Germany
Produce with open cross-flow runner, self-supporting membrane-replaceable shell-tube type hyperfiltration membrane assembly, can effectively be prevented using the membrane module
Only membrane tube is blocked, and with aquifer yield is big, flux stabilized, cleaning frequency it is long, can be with cleaning in two months once；Step is produced
Ultrafiltration concentrated water can also be processed by flotation tank, remove solid impurity and suspension, carried out subsequently into catalytic oxidizing equipment
Advanced oxidation treatment；
Step 3：Ultrafiltration produces water after the first booster pump and the second booster pump are pressurized to 70-80bar, into high pressure NF membrane group
High power circulation concentration is carried out in part, concentrated water returns to the water inlet circular treatment of the second booster pump in concentration process, to be concentrated to dense
Demagnification number obtains nanofiltration concentrated water after reaching 9-10 times and water is produced in nanofiltration, and water discharge or reuse are produced in nanofiltration；High pressure nanofiltration membrane component is allowed
Monovalent salt and part small organic molecule pass through, and can effectively reduce the operating pressure of subsequent catalyst oxidation unit, while will have
Organic pollutants high power is concentrated, and greatly reduces the treatment water in subsequent catalyst oxidation and secondary oxidation pond, improves catalysis oxidation dress
The treatment effeciency with secondary oxidation pond is put, the waste water after treatment is reached national grade one discharge standard；The high pressure NF membrane of the step
Component is the high pressure resistant organic nanofiltration membrane component that pressure-resistant scope is 0-90bar；Nanofiltration retaining molecular weight is 150-350 dongles
；
Step 4：After carrying out advanced catalytic oxidation in nanofiltration concentrated water water inlet catalytic oxidizing equipment, obtain catalysis oxidation and produce water；Catalysis oxygen
Change and produce water again by after the oxidation of secondary oxidation pond, into after three heavy ponds precipitations, qualified discharge.
By specific implementation, using present system and technique for agricultural chemicals waste water treatment, water COD is produced in the nanofiltration after treatment
Stablize 50 below mg/l, SS stabilizations can meet national grade one discharge standard in 50 below mg/l, or even meet reuse requirement；
After the nanofiltration concentrated water for concentrating aoxidizes further organics removal by catalytic oxidizing equipment and secondary oxidation pond, ponds are sunk through three
COD stablizes 100 below mg/l after precipitation process, and SS stabilizations are produced water and also meet national grade one discharge standard in 10 below mg/l；
Tubular ultrafiltration membrane module of the present invention and high pressure nanofiltration membrane component are used simultaneously, and tubular ultrafiltration membrane module can be clear with 2 months
Wash once, nanofiltration thickening apparatus can be with a cleaning in month once；Greatly reduce cleaning cost, there is provided the stabilization of system operation
Property.
Although specifically showing and describing the present invention with reference to preferred embodiment, those skilled in the art should be bright
In vain, do not departing from the spirit and scope of the present invention that appended claims are limited, in the form and details to this hair
It is bright to make a variety of changes, it is protection scope of the present invention.
Claims (10)
1. a kind of agricultural chemicals waste water processing system, it is characterised in that：Including the tune being connected with agricultural chemicals waste water discharge tube by pipeline
Section pond, the delivery port of described regulating reservoir connects the water inlet of coagulative precipitation tank by pipeline, and the delivery port of coagulative precipitation tank leads to
Piping connects the water inlet of anaerobic pond；The delivery port of described anaerobic pond connects one-level Aerobic Pond water inlet, institute by pipeline
The delivery port of the one-level Aerobic Pond stated connects the water inlet of second pond by pipeline；The delivery port of described second pond passes through pipeline
The water inlet of surge tank is connected, the delivery port of described surge tank is connected by pipeline with the water inlet of dehvery pump, and described is defeated
Expect that the delivery port of pump passes through connecting pipe of pipeline formula hyperfiltration membrane assembly water inlet；The product mouth of a river of described tubular ultrafiltration membrane module passes through
Water pot is produced in pipeline connection ultrafiltration；The water inlet that water pot delivery port connects the first booster pump by pipeline is produced in described ultrafiltration, described
The first booster pump delivery port pass through pipeline connect the second booster pump water inlet；The delivery port of the second described booster pump leads to
Piping connects high pressure nanofiltration membrane component water inlet；The product water out of described high pressure nanofiltration membrane component connects nanofiltration by pipeline
Water pot is produced, the concentrated water outlet of described high pressure nanofiltration membrane component is connected the water inlet of the second booster pump by reflux line, passed through
Concentration pipeline connects the water inlet of catalytic oxidizing equipment；The delivery port of described catalytic oxidizing equipment connects entering for two grades of Aerobic Ponds
The mouth of a river；The heavy pond water inlet of delivery port connection three of described Aerobic Pond.
2. a kind of agricultural chemicals waste water processing system according to claim 1, it is characterised in that：Described tubular ultrafiltration membrane module
In tubular ultra-filtration membrane molecular cut off be the dalton of 1-25 ten thousand.
3. a kind of agricultural chemicals waste water processing system according to claim 1, it is characterised in that：Described high pressure nanofiltration membrane component
For pressure-resistant scope is the high pressure resistant organic nanofiltration membrane component of 0-90bar；Nanofiltration retaining molecular weight is 150-350 dalton.
4. a kind of agricultural chemicals waste water processing system according to claim 1, it is characterised in that：The first described booster pump is post
Plug pump, the second described booster pump is high pressure resistant centrifugal pump.
5. a kind of agricultural chemicals waste water processing system according to claim 1, it is characterised in that：Described tubular ultrafiltration membrane module
German MEMOS companies produce with open cross-flow runner, self-supporting membrane-replaceable shell-tube type hyperfiltration membrane assembly.
6. a kind of agricultural chemicals waste water processing system according to claim 1, it is characterised in that：Described tubular ultrafiltration membrane module
The concentrated water outlet water inlet that passes through pipeline connection flotation tank, the delivery port of described flotation tank connects catalysis oxidation by pipeline
The water inlet of device.
7. the handling process after a kind of agricultural chemicals waste water biochemical treatment, it is characterised in that comprise the following steps：
Step 1：After the adjusted pond water quality adjustment of agricultural chemicals waste water, enter slow after sequentially passing through anaerobism, Aerobic Process for Treatment, sedimentation in secondary sedimentation tank
Rush in tank；
Step 2：Waste water in surge tank is input into tubular ultrafiltration membrane module by pipeline through dehvery pump, is obtained ultrafiltration and is produced water and ultrafiltration
Concentrated water；Tubular ultra-filtration membrane molecular cut off in described tubular ultrafiltration membrane module is the dalton of 1-25 ten thousand；
Step 3：Ultrafiltration produces water after the first booster pump and the second booster pump are pressurized to 70-80bar, into high pressure NF membrane group
High power circulation concentration is carried out in part, concentrated water returns to the water inlet circular treatment of the second booster pump in concentration process, to be concentrated to dense
Demagnification number obtains nanofiltration concentrated water after reaching 9-10 times and water is produced in nanofiltration, and water discharge or reuse are produced in nanofiltration；
Step 4：After carrying out advanced catalytic oxidation in nanofiltration concentrated water water inlet catalytic oxidizing equipment, obtain catalysis oxidation and produce water；Catalysis oxygen
Change and produce water again by after the oxidation of secondary oxidation pond, into after three heavy ponds precipitations, qualified discharge.
8. the handling process after a kind of agricultural chemicals waste water biochemical treatment according to claim 7, it is characterised in that described pipe
The German MEMOS companies of formula hyperfiltration membrane assembly produce with open cross-flow runner, self-supporting membrane-replaceable shell-tube type milipore filter
Component.
9. the handling process after a kind of agricultural chemicals waste water biochemical treatment according to claim 7, it is characterised in that described height
Pressure nanofiltration membrane component is the high pressure resistant organic nanofiltration membrane component that pressure-resistant scope is 0-90bar；Nanofiltration retaining molecular weight is 150-
350 dalton.
10. the handling process after a kind of agricultural chemicals waste water biochemical treatment according to claim 7, it is characterised in that also include
By the ultrafiltration concentrated water in step 2 by air-flotation process, solid impurity and suspension are removed, carried out subsequently into catalytic oxidizing equipment
The step of advanced oxidation is processed.
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