CN109574378A - A kind of low cost agricultural chemicals waste water processing optimization technique - Google Patents
A kind of low cost agricultural chemicals waste water processing optimization technique Download PDFInfo
- Publication number
- CN109574378A CN109574378A CN201811390620.5A CN201811390620A CN109574378A CN 109574378 A CN109574378 A CN 109574378A CN 201811390620 A CN201811390620 A CN 201811390620A CN 109574378 A CN109574378 A CN 109574378A
- Authority
- CN
- China
- Prior art keywords
- waste water
- agricultural chemicals
- chemicals waste
- pond
- water
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- 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
-
- 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
- C02F1/001—Processes for the treatment of water whereby the filtration technique is of importance
-
- 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
-
- 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
- C02F1/78—Treatment of water, waste water, or sewage by oxidation with ozone
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F2001/007—Processes including a sedimentation step
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/30—Organic compounds
- C02F2101/306—Pesticides
-
- 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
- C02F2305/06—Nutrients for stimulating the growth of microorganisms
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/30—Aerobic and anaerobic processes
Landscapes
- 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)
Abstract
The invention discloses a kind of comprehensive processing techniques of agricultural chemicals waste water, including following process flow: agricultural chemicals waste water is after first order reaction, it is aoxidized in advance by ozone oxidation pond, it is discharged using subsequent processing, the sludge generated in agricultural chemicals waste water treatment process will be handled by Treatment of Sludge process.It is used at present it is more be Fenton-photocatalysis treatment, but operating cost height limits the use of this method.Catalytic ozonation material requested expense only needs the light-catalysed one third of Fenton-, for operation expense also below other modes, effluent quality can satisfy in " agricultural chemicals waste water comprehensive discharge standard " GB8978-1996 Sewage Water Emissions highest allowable value in level-one A standard.CODr removal rate the time needed for shortening reaction, improves the efficiency of wastewater treatment, greatly has compressed cost up to 95%, and compared with other modes.
Description
Technical field
The invention belongs to agricultural chemicals waste water processing technology field, in particular to inexpensive agricultural chemicals waste water handles optimization technique.
Background technique
China is agricultural production big country, during agricultural production, it is unavoidable it is a large amount of use pesticide.Pesticide producing is useless
Water mainly has following various features:
The mass concentration of organic matter is high: COD (cholesterol oxidase) is usually arrived in thousands of mg/L comprehensive agricultural chemicals waste water before treatment
Between tens of thousands of mg/L, and the COD of synthetic wastewater may be up to tens of thousands of mg/L, sometimes even up to hundreds of thousands during pesticide producing
Mg/L or more.
Pollutant component is sufficiently complex: pesticide producing is related to many organic chemical reactions, not only contains original in many waste water
Expect ingredient, and contains many by-products, intermediate product.
Toxicity is big, difficult for biological degradation: contain trichloropyridine alcohol, diethylin ancymidol etc. in chlopyrifos production waste water,
It is the difficult compound being degraded by microorganisms.Simultaneously in some waste water in addition to containing pesticide and intermediate, also containing phenyl ring class,
The noxious materials such as phenol, arsenic, mercury inhibit biodegrade.
Foul smelling and penetrating odor: it is irritant to the respiratory tract and mucous membrane of people, it can produce poisoning symptom when serious, endanger
Evil health.
Water quality, water are unstable: due to the problems such as production technology is unstable, operational administrative, causing a ton product discharge of wastewater
Amount is big, brings certain difficulty for wastewater treatment.
The effect of pesticide causes it to have biggish demand, while its generated waste water also greatly increases, with a kind of low
The mode of cost improves the problem of processing capacity is at standing in the breach.Ozonation technology can make the pollutant oxygen in agricultural chemicals waste water
Change and decompose, be usually used in reducing BOD, COD, decoloration, deodorization, taste removal sterilize, kill algae, remove iron, manganese, cyanogen, phenol.
Summary of the invention
The technical issues of solution: the application mainly proposes a kind of inexpensive agricultural chemicals waste water processing optimization technique, solves existing
Have production technology present in technology it is unstable, it is irritant to the respiratory tract and mucous membrane of people, cause a ton product wastewater discharge
The technical problems such as big, the process operation is simple, and treatment effect is good, and effluent quality can satisfy " agricultural chemicals waste water comprehensive discharge mark
It is quasi- " Sewage Water Emissions highest allowable value in level-one A standard in GB8978-1996.
Technical solution:
A kind of low cost agricultural chemicals waste water processing optimization technique, steps are as follows:
The first step, agricultural chemicals waste water pretreatment: agricultural chemicals waste water is entered in grid by discharge of pipes, and first passing through grid will be in agricultural chemicals waste water
Solid impurity filter removal, then agricultural chemicals waste water is sent into conditioning tank by lift pump room and carry out water quality adjustment, adjusts water
Agricultural chemicals waste water after matter, which flows into vertical sedimentation tank, to be handled, and carries out oxygen by ozone oxidation pond after physics sedimentation
Change；
Second step, microbiological treatment；The agricultural chemicals waste water that ozone oxidation pond aoxidized further adjusts pesticide by hydrolysis acidification pool
After the biodegradability of waste water, by the biodegrade in the pond A/O, then by being discharged after sedimentation in secondary sedimentation tank；
Step 3: secondary settling tank discharge agricultural chemicals waste water in second step is further precipitated, sludge returns again under the action of slush pump
To the pond A/O；
4th step, terminal drainage: will be in vertical sedimentation tank, ozone oxidation pond, hydrolysis acidification pool, the pond A/O and secondary settling tank pond body
Deposit and sludge, which are discharged into storage basin, to be mixed, then by being dehydrated outward transport between sludge dewatering.
As a preferred technical solution of the present invention: the conditioning tank is made into flat, is stirred with compressed air, to prevent
Precipitating；It is equipped with flusher, overflow mechanism in conditioning tank, excludes floating material device and watering defoaming device, flusher list
It is solely laid with along bottom of pond, overflow mechanism is located at 0.2 meter of pond body coboundary, and the water of overflow leads back to adjusting by reflux line
Pond；It excludes floating material device back and forth to be run by Mechanical Driven on water surface surface layer, floating material is collected together with solid waste after excluding
Processing；Watering defoaming device is laid in above pond body at 0.1 meter, is uniformly sprayed to pond body by running water pipe water supply, all dresses
Set surface setting waterproof layer；Aeration quantity needed for conditioning tank is 1.5-3.0m3Air/(m2Pool surface is long-pending h), effective water of conditioning tank
1.5 ~ 2m is taken deeply, and longitudinal baffle spacing is 1 ~ 1.5m.
As a preferred technical solution of the present invention: being additionally provided with nutritive salt supplementary device in the conditioning tank, adjusting
Na is added in pond2CO3、NaHCO3Or NaOH carries out pH coarse adjustment, carries out pH fine tuning using pipe stirrer and quantitative acid dosing alkali pump,
Nutritive salt is added while dosing.
As a preferred technical solution of the present invention: the nutritive salt is nitrogen salt and microcosmic salt.
As a preferred technical solution of the present invention: being equipped with bubble tower in the ozone reactor, agricultural chemicals waste water is from tower
Jacking enters, and sprays downwards through spray equipment, and ozone then enters from the micropore disperser of tower bottom, at the rising of micro-bubble state
It is discharged from tower top, the throwing amount of ozone is 10-20mg/L, and time of contact is 5-20min.
As a preferred technical solution of the present invention: the hydrolysis acidification pool uses total water inlet tube, caliber DN200, pond
Bottom branch formula water distribution, branch pipe DN100, aperture of uniformly arranging on branch pipe is water outlet, and branch pipe is apart from bottom of pond 100mm, uniform cloth
It sets in bottom of pond, the agricultural chemicals waste water in hydrolysis acidification pool is by adding alkali that the PH of agricultural chemicals waste water is transferred to 5.5 ~ 6.5, water temperature > 25
DEG C, water distribution: enter distributing hole flow velocity v=0.20~0.23m/s of reaction zone, hydraulic detention time: 6~8h by water distributing area.
As a preferred technical solution of the present invention: use the pond Round Sump A/O, agricultural chemicals waste water first into people anoxic zone,
Aerobic zone is entered back into, the mixed liquor of aerobic zone and the precipitating sludge of secondary settling tank flow back into anoxic zone simultaneously.
As a preferred technical solution of the present invention: depth is flooded away from bottom of pond 0.2m using blast aeration in the aerobic zone
3.8m is spent, oxygen transfer rate EA=20% calculates 25 DEG C of temperature, practical oxygen demand is converted into the oxygen demand D ' under standard state, is adopted
When with blast aeration tank, air demand >=3m of every cubic metre of agricultural chemicals waste water is handled3。
As a preferred technical solution of the present invention: the blast aeration design uses the periosteum type micro-hole of I type D=300
Aerator, service area 1.0m2/.
As a preferred technical solution of the present invention: the sewage is flowed into from the pond A/O front end, is flowed down in gravity stream effect
It rearward exporting, is symmetrical structure at left and right sides of pond, sewage first passes through anoxic zone, it is circulated under hydraulic set promotion,
Lead to aerobic zone by two discharge outlet, oxygen is aerated under the action of air blower uniformly through 36 aerators.
The utility model has the advantages that herein described low cost agricultural chemicals waste water processing optimization technique is using above technical scheme and existing skill
Art is compared, and is had following technical effect that
1, the mode that ozone oxidation pond shifts to an earlier date is proved in simulation test practical.
2, under this technique, first is that saving the processing time, efficiency is improved, cost is in addition greatly reduced.
3, treatment effect is good, and discharge of wastewater executes level-one A mark in " agricultural chemicals waste water comprehensive discharge standard " GB8978-1996
Sewage Water Emissions highest allowable value in standard.
4, pass through simulated experiment data measured, wastewater influent water-quality COD cr=11520, BOD5=260, SS=320, NH4-N
=170, effluent quality CODcr=66.4, BOD5=24.6, SS=8.3, NH4-N=12.5 after processing meet country
GB8978-1996 first discharge standard.
Detailed description of the invention:
Fig. 1 is the process flow chart that the application is implemented.
Fig. 2 is the pond the application A/O air pipe line layout drawing.
Fig. 3 is the application hydrolysis acidification pool design parameter figure.
Specific embodiment
Specific embodiments of the present invention will be described in further detail with reference to the accompanying drawings of the specification.
Embodiment 1
A kind of low cost agricultural chemicals waste water processing optimization technique, preprocessing process enter agricultural chemicals waste water in grid by discharge of pipes,
Grid is first passed through by the solid impurity filtering removal in agricultural chemicals waste water, agricultural chemicals waste water is then sent by conditioning tank by lift pump room
Middle carry out water quality adjustment, conditioning tank are made into flat, are stirred with compressed air, to prevent from precipitating；In conditioning tank be equipped with flusher,
Overflow mechanism, exclude floating material device and watering defoaming device, flusher individually along bottom of pond be laid with, overflow mechanism be located at away from
At 0.2 meter from pond body coboundary, the water of overflow leads back to conditioning tank by reflux line；Floating material device is excluded by Mechanical Driven
It is back and forth run on water surface surface layer, the collection processing together with solid waste after floating material excludes；Watering defoaming device is laid in pond body
At 0.1 meter of top, uniformly sprayed to pond body by running water pipe water supply, waterproof layer is arranged in all apparatus surfaces；Needed for conditioning tank
Aeration quantity is 1.5-3.0m3Air/(m2H), the available depth of conditioning tank takes 1.5 ~ 2m to pool surface product, and longitudinal baffle spacing is
1~1.5m.It is additionally provided with nutritive salt supplementary device in the conditioning tank, Na is added in conditioning tank2CO3、NaHCO3Or NaOH is carried out
PH coarse adjustment carries out pH fine tuning using pipe stirrer and quantitative acid dosing alkali pump, nutritive salt, the nutrition is added while dosing
Salt is nitrogen salt and microcosmic salt.
Agricultural chemicals waste water after regulating water quality, which flows into vertical sedimentation tank, to be handled, and passes through ozone after physics sedimentation
Oxidation pond is aoxidized, and ozone can make the pollutant oxygenolysis in agricultural chemicals waste water, is usually used in reducing BOD, COD, is decolourized, removes
Smelly, taste removal sterilizes, kills algae, removes iron, manganese, cyanogen, phenol；Be equipped with bubble tower in the ozone reactor, agricultural chemicals waste water from tower top into
Enter, sprayed downwards through spray equipment, ozone then enters from the micropore disperser of tower bottom, at the rising of micro-bubble state from tower
Top row goes out, and the throwing amount of ozone is generally 10-20mg/L, and time of contact is 5-20min, and treatment effect is reachable: BOD5 is reduced
60%—70%；COD:50% -70%；Synthetic surface active material reduces by 90%；Carcinogen reduces by 80%, and blast aeration design is adopted
With the periosteum micro-porous aerator of I type D=300, service area 1.0m2/.
The agricultural chemicals waste water that ozone oxidation pond aoxidized further adjusts the biodegradability of agricultural chemicals waste water by hydrolysis acidification pool
Afterwards, by the biodegrade in the pond A/O, then by being discharged after sedimentation in secondary sedimentation tank；The hydrolysis acidification pool uses total water inlet tube, caliber
DN200, bottom of pond bifurcated water distribution, branch pipe DN100, aperture of uniformly arranging on branch pipe is water outlet, and branch pipe is apart from bottom of pond
100mm is evenly arranged in bottom of pond, the agricultural chemicals waste water in hydrolysis acidification pool by add alkali the PH of agricultural chemicals waste water is transferred to 5.5 ~
6.5, water is greater than 25 DEG C, water distribution: entering distributing hole flow velocity v=0.20~0.23m/s of reaction zone by water distributing area, when hydraulic retention
Between: 6~8h.Preferably, the agricultural chemicals waste water in hydrolysis acidification pool is by adding alkali that the PH of agricultural chemicals waste water is transferred to 6, the sewage
It is flowed into from the pond A/O front end, flows down in gravity stream effect and rearward export, be symmetrical structure at left and right sides of pond, sewage first passes through
Anoxic zone circulates under hydraulic set promotion, leads to aerobic zone by two discharge outlet, oxygen is under the action of air blower
It is aerated uniformly through 36 aerators.
In entire Hydrolysis Acidification, 80% or more water inlet suspended matter is hydrolyzed into solable matter, by macromolecules degradation
It for small molecule, is not only macromolecular substances difficult to degrade and is degraded, and be discharged BOD5/ COD ratio improves, and reduces subsequent
The oxygen demand and aeration time of biological treatment.
Agricultural chemicals waste water after hydrolysis acidification pool comes out enters the pond A/O, and using the pond Round Sump A/O, agricultural chemicals waste water is first into people
Anoxic zone enters back into aerobic zone, discharge agricultural chemicals waste water is further precipitated, partial sludge comes back under the action of slush pump
The pond A/O.The mixed liquor of aerobic zone and the precipitating sludge of secondary settling tank flow back into anoxic zone simultaneously, ensure that anoxic zone and aerobic zone
In have enough biomass, and flow back into the product NO3-N and NO2-N of nitrification in aerobic zone in anoxic zone.
The aerobic zone uses blast aeration, and away from bottom of pond 0.2m, depth of immersion 3.8m, oxygen transfer rate EA=20% calculates temperature
25 DEG C of degree, is converted into the oxygen demand D ' under standard state for practical oxygen demand, when using blast aeration tank, handles every cubic metre of agriculture
The air demand of medicine waste water is no less than 3m3, design parameter is as shown in figure 3, blast aeration design uses the periosteum formula of I type D=300
Micro-hole aerator, service area 1.0m2/.
Treated, and agricultural chemicals waste water enters in secondary settling tank is precipitated, and the agricultural chemicals waste water after precipitating enters terminal processes row
It puts, sludge comes back to the pond A/O under the action of slush pump.
By in vertical sedimentation tank, ozone oxidation pond, hydrolysis acidification pool, the pond A/O and secondary settling tank pond body deposit and
Sludge is discharged into storage basin and is mixed, then by being dehydrated outward transport between sludge dewatering.
Embodiment 2
A kind of low cost agricultural chemicals waste water processing optimization technique, preprocessing process enter agricultural chemicals waste water in grid by discharge of pipes,
Grid is first passed through by the solid impurity filtering removal in agricultural chemicals waste water, agricultural chemicals waste water is then sent by conditioning tank by lift pump room
Middle carry out water quality adjustment, be equipped in the conditioning tank flusher, overflow mechanism, exclude floating material device, foamite system and
Waterproof layers are arranged in watering defoaming device, all apparatus surfaces；Conditioning tank is made into flat, is stirred with compressed air, to prevent from sinking
It forms sediment；Required aeration quantity is about 1.5m3Air/(m2H), the available depth of conditioning tank takes 1.5m to pool surface product, between longitudinal baffle
Away from for 1m.It is additionally provided with nutritive salt supplementary device in the conditioning tank, Na is added in conditioning tank2CO3、NaHCO3Or NaOH is carried out
PH coarse adjustment carries out PH fine tuning using pipe stirrer and quantitative acid dosing alkali pump, nutritive salt, the nutrition is added while dosing
Salt is nitrogen and phosphorus.
Agricultural chemicals waste water after regulating water quality, which flows into vertical sedimentation tank, to be handled, and passes through ozone after physics sedimentation
Oxidation pond is aoxidized, and ozone can make the pollutant oxygenolysis in agricultural chemicals waste water, is usually used in reducing BOD, COD, is decolourized, removes
Smelly, taste removal sterilizes, kills algae, removes iron, manganese, cyanogen, phenol；Be equipped with bubble tower in the ozone reactor, agricultural chemicals waste water from tower top into
Enter, sprayed downwards through spray equipment, ozone then enters from the micropore disperser of tower bottom, at the rising of micro-bubble state from tower
Top row goes out, and the throwing amount of ozone is generally 10mg/L, time of contact 5min, and treatment effect is reachable: BOD5 reduces by 60%%；COD:
50%；Synthetic surface active material reduces by 90%；Carcinogen reduces by 80%.
The agricultural chemicals waste water that ozone oxidation pond aoxidized further adjusts the biodegradability of agricultural chemicals waste water by hydrolysis acidification pool
Afterwards, by the biodegrade in the pond A/O, then by being discharged after sedimentation in secondary sedimentation tank；The hydrolysis acidification pool uses total water inlet tube, caliber
DN200, bottom of pond bifurcated water distribution, branch pipe DN100, aperture of uniformly arranging on branch pipe is water outlet, and branch pipe is apart from bottom of pond
100mm is evenly arranged in bottom of pond, and the agricultural chemicals waste water in hydrolysis acidification pool is by adding alkali that the PH of agricultural chemicals waste water is transferred to 5.5, water
Greater than 25 DEG C, water distribution: enter the distributing hole flow velocity v=0.20m/s of reaction zone, hydraulic detention time: 6h by water distributing area.As excellent
It selecting, by adding alkali that the PH of agricultural chemicals waste water is transferred to 6, the sewage flows into the agricultural chemicals waste water in hydrolysis acidification pool from the pond A/O front end,
It flows down in gravity stream effect and rearward exports, be symmetrical structure at left and right sides of pond, sewage first passes through anoxic zone, in hydraulic set
It is circulated under promotion, leads to aerobic zone by two discharge outlet, oxygen is aerated under the action of air blower uniformly through 36
Device is aerated.
In entire Hydrolysis Acidification, 80% or more water inlet suspended matter is hydrolyzed into solable matter, by macromolecules degradation
It for small molecule, is not only macromolecular substances difficult to degrade and is degraded, and be discharged BOD5/ COD ratio improves, and reduces subsequent
The oxygen demand and aeration time of biological treatment.
Agricultural chemicals waste water after hydrolysis acidification pool comes out enters the pond A/O, and using the pond Round Sump A/O, agricultural chemicals waste water is first into people
Anoxic zone enters back into aerobic zone, discharge agricultural chemicals waste water is further precipitated, partial sludge comes back under the action of slush pump
The pond A/O.The mixed liquor of aerobic zone and the precipitating sludge of secondary settling tank flow back into anoxic zone simultaneously, ensure that anoxic zone and aerobic zone
In have enough biomass, and flow back into the product NO3-N and NO2-N of nitrification in aerobic zone in anoxic zone.
The aerobic zone uses blast aeration, and away from bottom of pond 0.2m, depth of immersion 3.8m, oxygen transfer rate EA=20% calculates temperature
25 DEG C of degree, is converted into the oxygen demand D ' under standard state for practical oxygen demand, when using blast aeration tank, handles every cubic metre of agriculture
The air demand of medicine waste water is no less than 3m3, design parameter is as shown in figure 3, blast aeration design uses the periosteum formula of I type D=300
Micro-hole aerator, service area 1.0m2/.
Treated, and agricultural chemicals waste water enters in secondary settling tank is precipitated, and the agricultural chemicals waste water after precipitating enters terminal processes row
It puts, partial sludge comes back to the pond A/O under the action of slush pump.
By in vertical sedimentation tank, ozone oxidation pond, hydrolysis acidification pool, the pond A/O and secondary settling tank pond body deposit and
Sludge is discharged into storage basin and is mixed, then by being dehydrated outward transport between sludge dewatering.
Embodiment 3
A kind of low cost agricultural chemicals waste water processing optimization technique, preprocessing process enter agricultural chemicals waste water in grid by discharge of pipes,
Grid is first passed through by the solid impurity filtering removal in agricultural chemicals waste water, agricultural chemicals waste water is then sent by conditioning tank by lift pump room
Middle carry out water quality adjustment, be equipped in the conditioning tank flusher, overflow mechanism, exclude floating material device, foamite system and
Waterproof layers are arranged in watering defoaming device, all apparatus surfaces；Conditioning tank is made into flat, is stirred with compressed air, to prevent from sinking
It forms sediment；Required aeration quantity is about 3.0m3Air/(m2H), the available depth of conditioning tank takes 2m, longitudinal baffle spacing to pool surface product
For 1.5m.It is additionally provided with nutritive salt supplementary device in the conditioning tank, Na is added in conditioning tank2CO3、NaHCO3Or NaOH is carried out
PH coarse adjustment carries out PH fine tuning using pipe stirrer and quantitative acid dosing alkali pump, nutritive salt, the nutrition is added while dosing
Salt is nitrogen and phosphorus.
Agricultural chemicals waste water after regulating water quality, which flows into vertical sedimentation tank, to be handled, and passes through ozone after physics sedimentation
Oxidation pond is aoxidized, and ozone can make the pollutant oxygenolysis in agricultural chemicals waste water, is usually used in reducing BOD, COD, is decolourized, removes
Smelly, taste removal sterilizes, kills algae, removes iron, manganese, cyanogen, phenol；Be equipped with bubble tower in the ozone reactor, agricultural chemicals waste water from tower top into
Enter, sprayed downwards through spray equipment, ozone then enters from the micropore disperser of tower bottom, at the rising of micro-bubble state from tower
Top row goes out, and the throwing amount of ozone is generally 20mg/L, time of contact 20min, and treatment effect is reachable: BOD5 reduces by 70%；COD:
70%；Synthetic surface active material reduces by 90%；Carcinogen reduces by 80%.
After agricultural chemicals waste water further adjusts the biodegradability of agricultural chemicals waste water by hydrolysis acidification pool, by the biology in the pond A/O
Degradation, then by being discharged after sedimentation in secondary sedimentation tank；The hydrolysis acidification pool uses total water inlet tube, caliber DN200, and bottom of pond bifurcated is matched
Water, branch pipe DN100, aperture of uniformly arranging on branch pipe is water outlet, and branch pipe is evenly arranged in bottom of pond apart from bottom of pond 100mm,
Agricultural chemicals waste water in hydrolysis acidification pool is by adding alkali that the PH of agricultural chemicals waste water is transferred to 6.5, and water is greater than 25 DEG C, water distribution: by water distributing area
Into the distributing hole flow velocity v=0.23m/s of reaction zone, hydraulic detention time: 8h.Preferably, the pesticide in hydrolysis acidification pool
Waste water is by adding alkali that the PH of agricultural chemicals waste water is transferred to 6.
In entire Hydrolysis Acidification, 80% or more water inlet suspended matter is hydrolyzed into solable matter, by macromolecules degradation
It for small molecule, is not only macromolecular substances difficult to degrade and is degraded, and be discharged BOD5/ COD ratio improves, and reduces subsequent
The oxygen demand and aeration time of biological treatment.
Agricultural chemicals waste water after hydrolysis acidification pool comes out enters the pond A/O, and using the pond Round Sump A/O, agricultural chemicals waste water is first into people
Anoxic zone enters back into aerobic zone, discharge agricultural chemicals waste water is further precipitated, partial sludge comes back under the action of slush pump
The pond A/O.The mixed liquor of aerobic zone and the precipitating sludge of secondary settling tank flow back into anoxic zone simultaneously, ensure that anoxic zone and aerobic zone
In have enough biomass, and flow back into the product NO3-N and NO2-N of nitrification in aerobic zone in anoxic zone.
The aerobic zone uses blast aeration, and away from bottom of pond 0.2m, depth of immersion 3.8m, oxygen transfer rate EA=20% calculates temperature
25 DEG C of degree, is converted into the oxygen demand D ' under standard state for practical oxygen demand, when using blast aeration tank, handles every cubic metre of agriculture
The air demand of medicine waste water is no less than 3m3, design parameter is as shown in figure 3, blast aeration design uses the periosteum formula of I type D=300
Micro-hole aerator, service area 1.0m2/.
Treated, and agricultural chemicals waste water enters in secondary settling tank is precipitated, and the agricultural chemicals waste water after precipitating enters terminal processes row
It puts, partial sludge comes back to the pond A/O under the action of slush pump.
By in vertical sedimentation tank, ozone oxidation pond, hydrolysis acidification pool, the pond A/O and secondary settling tank pond body deposit and
Sludge is discharged into storage basin and is mixed, then by being dehydrated outward transport between sludge dewatering.
Embodiment 4
A kind of low cost agricultural chemicals waste water processing optimization technique, preprocessing process enter agricultural chemicals waste water in grid by discharge of pipes,
Grid is first passed through by the solid impurity filtering removal in agricultural chemicals waste water, agricultural chemicals waste water is then sent by conditioning tank by lift pump room
Middle carry out water quality adjustment, be equipped in the conditioning tank flusher, overflow mechanism, exclude floating material device, foamite system and
Waterproof layers are arranged in watering defoaming device, all apparatus surfaces；Conditioning tank is made into flat, is stirred with compressed air, to prevent from sinking
It forms sediment；Required aeration quantity is about 2.0m3Air/(m2H), the available depth of conditioning tank takes 1.8m to pool surface product, between longitudinal baffle
Away from for 1.2m.It is additionally provided with nutritive salt supplementary device in the conditioning tank, Na is added in conditioning tank2CO3、NaHCO3Or NaOH into
Row PH coarse adjustment carries out PH fine tuning using pipe stirrer and quantitative acid dosing alkali pump, nutritive salt, the battalion is added while dosing
Supporting salt is nitrogen and phosphorus.
Agricultural chemicals waste water after regulating water quality, which flows into vertical sedimentation tank, to be handled, and passes through ozone after physics sedimentation
Oxidation pond is aoxidized, and ozone can make the pollutant oxygenolysis in agricultural chemicals waste water, is usually used in reducing BOD, COD, is decolourized, removes
Smelly, taste removal sterilizes, kills algae, removes iron, manganese, cyanogen, phenol；Be equipped with bubble tower in the ozone reactor, agricultural chemicals waste water from tower top into
Enter, sprayed downwards through spray equipment, ozone then enters from the micropore disperser of tower bottom, at the rising of micro-bubble state from tower
Top row goes out, and the throwing amount of ozone is generally 15mg/L, time of contact 15min, and treatment effect is reachable: BOD5 reduces by 65%；COD:
60%；Synthetic surface active material reduces by 90%；Carcinogen reduces by 80%.
After agricultural chemicals waste water further adjusts the biodegradability of agricultural chemicals waste water by hydrolysis acidification pool, by the biology in the pond A/O
Degradation, then by being discharged after sedimentation in secondary sedimentation tank；The hydrolysis acidification pool uses total water inlet tube, caliber DN200, and bottom of pond bifurcated is matched
Water, branch pipe DN100, aperture of uniformly arranging on branch pipe is water outlet, and branch pipe is evenly arranged in bottom of pond apart from bottom of pond 100mm,
Agricultural chemicals waste water in hydrolysis acidification pool is by adding alkali that the PH of agricultural chemicals waste water is transferred to 6, and water is greater than 25 DEG C, water distribution: by water distributing area into
Enter the distributing hole flow velocity v=0.22m/s of reaction zone, hydraulic detention time: 7h.Preferably, the pesticide in hydrolysis acidification pool is useless
Water is by adding alkali that the PH of agricultural chemicals waste water is transferred to 6.
In entire Hydrolysis Acidification, 80% or more water inlet suspended matter is hydrolyzed into solable matter, by macromolecules degradation
It for small molecule, is not only macromolecular substances difficult to degrade and is degraded, and be discharged BOD5/ COD ratio improves, and reduces subsequent
The oxygen demand and aeration time of biological treatment.
Agricultural chemicals waste water after hydrolysis acidification pool comes out enters the pond A/O, and using the pond Round Sump A/O, agricultural chemicals waste water is first into people
Anoxic zone enters back into aerobic zone, discharge agricultural chemicals waste water is further precipitated, partial sludge comes back under the action of slush pump
The pond A/O.The mixed liquor of aerobic zone and the precipitating sludge of secondary settling tank flow back into anoxic zone simultaneously, ensure that anoxic zone and aerobic zone
In have enough biomass, and flow back into the product NO3-N and NO2-N of nitrification in aerobic zone in anoxic zone.
The aerobic zone uses blast aeration, and away from bottom of pond 0.2m, depth of immersion 3.8m, oxygen transfer rate EA=20% calculates temperature
25 DEG C of degree, is converted into the oxygen demand D ' under standard state for practical oxygen demand, when using blast aeration tank, handles every cubic metre of agriculture
The air demand of medicine waste water is no less than 3m3, design parameter is as shown in figure 3, blast aeration design uses the periosteum formula of I type D=300
Micro-hole aerator, service area 1.0m2/.
Treated, and agricultural chemicals waste water enters in secondary settling tank is precipitated, and the agricultural chemicals waste water after precipitating enters terminal processes row
It puts, partial sludge comes back to the pond A/O under the action of slush pump.
By in vertical sedimentation tank, ozone oxidation pond, hydrolysis acidification pool, the pond A/O and secondary settling tank pond body deposit and
Sludge is discharged into storage basin and is mixed, then by being dehydrated outward transport between sludge dewatering.
In addition to above-mentioned implementation, there are also other embodiments, all sides formed using same replacement or equivalents by the present invention
Case is fallen within the scope of protection required by the present invention.
Embodiments of the present invention are explained in detail above in conjunction with attached drawing, but the present invention is not limited to above-mentioned implementations
Mode within the knowledge of a person skilled in the art can also be without departing from the purpose of the present invention
It makes a variety of changes.
Claims (10)
1. a kind of low cost agricultural chemicals waste water handles optimization technique, which is characterized in that steps are as follows:
The first step, agricultural chemicals waste water pretreatment: agricultural chemicals waste water is entered in grid by discharge of pipes, and first passing through grid will be in agricultural chemicals waste water
Solid impurity filter removal, then agricultural chemicals waste water is sent into conditioning tank by lift pump room and carry out water quality adjustment, adjusts water
Agricultural chemicals waste water after matter, which flows into vertical sedimentation tank, to be handled, and carries out oxygen by ozone oxidation pond after physics sedimentation
Change；
Second step, microbiological treatment；The agricultural chemicals waste water that ozone oxidation pond aoxidized further adjusts pesticide by hydrolysis acidification pool
After the biodegradability of waste water, by the biodegrade in the pond A/O, then by being discharged after sedimentation in secondary sedimentation tank；
Step 3: secondary settling tank discharge agricultural chemicals waste water in second step is further precipitated, sludge returns again under the action of slush pump
To the pond A/O；
4th step, terminal drainage: will be in vertical sedimentation tank, ozone oxidation pond, hydrolysis acidification pool, the pond A/O and secondary settling tank pond body
Deposit and sludge, which are discharged into storage basin, to be mixed, then by being dehydrated outward transport between sludge dewatering.
2. low cost agricultural chemicals waste water according to claim 1 handles optimization technique, it is characterised in that: the conditioning tank is made into
It is flat, it is stirred with compressed air, to prevent from precipitating；In conditioning tank be equipped with flusher, overflow mechanism, exclude floating material device with
And watering defoaming device, flusher are individually laid with along bottom of pond, overflow mechanism is located at 0.2 meter of pond body coboundary, overflow
Water conditioning tank is led back to by reflux line；It excludes floating material device back and forth to be run by Mechanical Driven on water surface surface layer, float
The collection processing together with solid waste after object excludes；Watering defoaming device is laid in above pond body at 0.1 meter, passes through running water pipe
Water supply is uniformly sprayed to pond body, and waterproof layer is arranged in all apparatus surfaces；Aeration quantity needed for conditioning tank is 1.5-3.0m3Air/(m2
H), the available depth of conditioning tank takes 1.5 ~ 2m to pool surface product, and longitudinal baffle spacing is 1 ~ 1.5m.
3. low cost agricultural chemicals waste water according to claim 1 handles optimization technique, it is characterised in that: in the conditioning tank also
Equipped with nutritive salt supplementary device, Na is added in conditioning tank2CO3、NaHCO3Or NaOH carries out pH coarse adjustment, using pipe stirrer
PH fine tuning is carried out with quantitative acid dosing alkali pump, adds nutritive salt while dosing.
4. low cost agricultural chemicals waste water according to claim 3 handles optimization technique, it is characterised in that: the nutritive salt is nitrogen
Salt and microcosmic salt.
5. low cost agricultural chemicals waste water according to claim 1 handles optimization technique, it is characterised in that: the ozone reactor
Interior to be equipped with bubble tower, agricultural chemicals waste water enters from tower top, sprays downwards through spray equipment, ozone is then from the micropore disperser of tower bottom
Into at the rising of micro-bubble state from tower top discharge, the throwing amount of ozone is 10-20mg/L, and time of contact is 5-
20min。
6. low cost agricultural chemicals waste water according to claim 1 handles optimization technique, it is characterised in that: the hydrolysis acidification pool
Using total water inlet tube, caliber DN200, bottom of pond bifurcated water distribution, branch pipe DN100, aperture of uniformly arranging on branch pipe is water outlet,
Branch pipe is evenly arranged in bottom of pond apart from bottom of pond 100mm, and the agricultural chemicals waste water in hydrolysis acidification pool is by adding alkali by agricultural chemicals waste water
PH is transferred to 5.5 ~ 6.5, and 25 DEG C of water temperature >, water distribution: being entered distributing hole flow velocity v=0.20~0.23m/s of reaction zone by water distributing area,
Hydraulic detention time: 6~8h.
7. low cost agricultural chemicals waste water according to claim 1 handles optimization technique, it is characterised in that: use Round Sump A/O
Pond, agricultural chemicals waste water into people anoxic zone, enter back into aerobic zone first, and the mixed liquor of aerobic zone and the precipitating sludge of secondary settling tank return simultaneously
It flows in anoxic zone.
8. low cost agricultural chemicals waste water according to claim 1 handles optimization technique, it is characterised in that: the aerobic zone uses
Blast aeration, away from bottom of pond 0.2m, depth of immersion 3.8m, oxygen transfer rate EA=20% calculates 25 DEG C of temperature, practical oxygen demand is converted
At the oxygen demand D ' under standard state, when using blast aeration tank, air demand >=3m of every cubic metre of agricultural chemicals waste water is handled3。
9. low cost agricultural chemicals waste water according to claim 1 handles optimization technique, it is characterised in that: the blast aeration is set
Meter uses the periosteum micro-porous aerator of I type D=300, service area 1.0m2/.
10. low cost agricultural chemicals waste water according to claim 1 handles optimization technique, it is characterised in that: the sewage is from A/O
Pond front end flows into, and flows down in gravity stream effect and rearward exports, be symmetrical structure at left and right sides of pond, sewage first passes through anoxic
Area circulates under hydraulic set promotion, leads to aerobic zone by two discharge outlet, oxygen is uniform under the action of air blower
It is aerated by 36 aerators.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811390620.5A CN109574378A (en) | 2018-11-21 | 2018-11-21 | A kind of low cost agricultural chemicals waste water processing optimization technique |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811390620.5A CN109574378A (en) | 2018-11-21 | 2018-11-21 | A kind of low cost agricultural chemicals waste water processing optimization technique |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109574378A true CN109574378A (en) | 2019-04-05 |
Family
ID=65923273
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811390620.5A Pending CN109574378A (en) | 2018-11-21 | 2018-11-21 | A kind of low cost agricultural chemicals waste water processing optimization technique |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109574378A (en) |
Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202880987U (en) * | 2012-11-23 | 2013-04-17 | 南京格洛特环境工程有限公司 | Catalytic oxidation tower for treating rare earth wastewater |
| CN205347112U (en) * | 2015-12-21 | 2016-06-29 | 厦门聚龙腾威环境工程技术有限公司 | Printing and dyeing wastewater treatment system |
| CN206173177U (en) * | 2016-10-22 | 2017-05-17 | 台州市环源环保工程有限公司 | Adhesive organic wastewater system |
| CN107032561A (en) * | 2017-05-10 | 2017-08-11 | 中海油能源发展股份有限公司北京安全环保工程技术研究院 | A kind of coal chemical industry wastewater zero emission treatment method and system |
| CN107176760A (en) * | 2017-06-26 | 2017-09-19 | 中电环保股份有限公司 | A kind of high salt advance for the treatment of process of cyanide-bearing effluent and processing system |
| CN107265794A (en) * | 2017-08-16 | 2017-10-20 | 中煤平朔集团有限公司 | A kind of processing of gasification of poor coal waste water at recycle device and its recovery with using method |
| CN206736028U (en) * | 2017-04-27 | 2017-12-12 | 东莞市科达环保工程有限公司 | A kind of electroplating wastewater advanced treatment system |
| CN107555736A (en) * | 2017-10-31 | 2018-01-09 | 张福权 | A kind of industrial waste water disposal device |
| CN107640871A (en) * | 2017-10-24 | 2018-01-30 | 张郁婷 | A kind of raising sewage disposal process |
| CN108101314A (en) * | 2018-01-10 | 2018-06-01 | 福建省致青生态环保有限公司 | A kind of comprehensive treatment Application way of livestock breeding wastewater |
| CN207748905U (en) * | 2017-11-29 | 2018-08-21 | 宁夏绿色之星环保工程有限公司 | A kind of novel ozone oxidized tower |
| CN207775018U (en) * | 2017-12-08 | 2018-08-28 | 湖北澳格森化工有限公司 | A effluent disposal system for organic synthesis |
-
2018
- 2018-11-21 CN CN201811390620.5A patent/CN109574378A/en active Pending
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202880987U (en) * | 2012-11-23 | 2013-04-17 | 南京格洛特环境工程有限公司 | Catalytic oxidation tower for treating rare earth wastewater |
| CN205347112U (en) * | 2015-12-21 | 2016-06-29 | 厦门聚龙腾威环境工程技术有限公司 | Printing and dyeing wastewater treatment system |
| CN206173177U (en) * | 2016-10-22 | 2017-05-17 | 台州市环源环保工程有限公司 | Adhesive organic wastewater system |
| CN206736028U (en) * | 2017-04-27 | 2017-12-12 | 东莞市科达环保工程有限公司 | A kind of electroplating wastewater advanced treatment system |
| CN107032561A (en) * | 2017-05-10 | 2017-08-11 | 中海油能源发展股份有限公司北京安全环保工程技术研究院 | A kind of coal chemical industry wastewater zero emission treatment method and system |
| CN107176760A (en) * | 2017-06-26 | 2017-09-19 | 中电环保股份有限公司 | A kind of high salt advance for the treatment of process of cyanide-bearing effluent and processing system |
| CN107265794A (en) * | 2017-08-16 | 2017-10-20 | 中煤平朔集团有限公司 | A kind of processing of gasification of poor coal waste water at recycle device and its recovery with using method |
| CN107640871A (en) * | 2017-10-24 | 2018-01-30 | 张郁婷 | A kind of raising sewage disposal process |
| CN107555736A (en) * | 2017-10-31 | 2018-01-09 | 张福权 | A kind of industrial waste water disposal device |
| CN207748905U (en) * | 2017-11-29 | 2018-08-21 | 宁夏绿色之星环保工程有限公司 | A kind of novel ozone oxidized tower |
| CN207775018U (en) * | 2017-12-08 | 2018-08-28 | 湖北澳格森化工有限公司 | A effluent disposal system for organic synthesis |
| CN108101314A (en) * | 2018-01-10 | 2018-06-01 | 福建省致青生态环保有限公司 | A kind of comprehensive treatment Application way of livestock breeding wastewater |
Non-Patent Citations (2)
| Title |
|---|
| 林永波 等: "《基础水污染控制工程》", 30 November 2010 * |
| 薛鹏程等: "农药废水处理工程实例", 《水处理技术》 * |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103435224A (en) | Waste water treatment technology for livestock breeding | |
| CN106430847B (en) | Intensive pig raising wastewater treatment equipment | |
| CN102775025A (en) | Municipal life wastewater treatment system with high efficiency and low energy consumption | |
| US20140061124A1 (en) | Effluent treatment process and plant | |
| CN106430845A (en) | Kitchen garbage wastewater treatment apparatus | |
| CN108083437A (en) | A kind of rural domestic sewage treating device and treatment process | |
| CN109650645A (en) | Integrated rural domestic sewage treatment device and sewage water treatment method | |
| CN108128986A (en) | Integrated multistage AO decentralized sewage treatment devices and method | |
| CN108383320A (en) | A kind of integrated processing method of livestock breeding wastewater | |
| CN110054351B (en) | Adopt three-dimensional electrolysis and AAO technology to handle purification tank of dispersed sewage | |
| CN214167711U (en) | Blow-up deoxidation MBR membrane culture wastewater treatment equipment | |
| CN106517520A (en) | MBBR continuous flow sequencing batch sewage treatment device and method thereof | |
| CN210559933U (en) | Rural sewage treatment device of integration | |
| CN108569824A (en) | A kind of starch gourmet powder waste water biochemistry intensive treatment system and technique | |
| CN105036819A (en) | Facility for producing earthworm breeding loam by utilizing aquaculture sewage and method | |
| CN208071544U (en) | A kind of railway communication system production wastewater treatment system | |
| CN111018263A (en) | Interface cutting biological purification sewage treatment device | |
| CN206680346U (en) | A kind of waste water advanced removal of carbon and nitrogen processing unit | |
| CN216377850U (en) | Combined vertical tank type sewage treatment equipment | |
| CN215480427U (en) | Domestic sewage integration treatment facility | |
| CN212222737U (en) | Pesticide effluent treatment plant | |
| CN205222939U (en) | Sewage treatment plant carries mark and reforms transform composite set | |
| KR100336263B1 (en) | Apparatus for treating waste water | |
| CN109574378A (en) | A kind of low cost agricultural chemicals waste water processing optimization technique | |
| CN208933075U (en) | A kind of garbage leachate treatment device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190405 |
|
| RJ01 | Rejection of invention patent application after publication |