CN106116064A - A kind of pesticide waste water treatment device and agricultural chemicals waste water processing method - Google Patents
A kind of pesticide waste water treatment device and agricultural chemicals waste water processing method Download PDFInfo
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- CN106116064A CN106116064A CN201610802503.XA CN201610802503A CN106116064A CN 106116064 A CN106116064 A CN 106116064A CN 201610802503 A CN201610802503 A CN 201610802503A CN 106116064 A CN106116064 A CN 106116064A
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- waste water
- agricultural chemicals
- chemicals waste
- reaction tank
- biochemical reaction
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- 239000002351 wastewater Substances 0.000 title claims abstract description 156
- 239000003905 agrochemical Substances 0.000 title claims abstract description 155
- 239000010914 pesticide waste Substances 0.000 title claims abstract description 24
- 238000003672 processing method Methods 0.000 title claims abstract description 21
- 238000004065 wastewater treatment Methods 0.000 title claims abstract description 19
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 claims abstract description 94
- 238000005842 biochemical reaction Methods 0.000 claims abstract description 94
- 238000007254 oxidation reaction Methods 0.000 claims abstract description 64
- 238000005728 strengthening Methods 0.000 claims abstract description 45
- 230000003647 oxidation Effects 0.000 claims abstract description 33
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 30
- 239000000126 substance Substances 0.000 claims abstract description 26
- 238000000034 method Methods 0.000 claims abstract description 23
- 230000003472 neutralizing effect Effects 0.000 claims abstract description 23
- XKMRRTOUMJRJIA-UHFFFAOYSA-N ammonia nh3 Chemical compound N.N XKMRRTOUMJRJIA-UHFFFAOYSA-N 0.000 claims description 20
- 238000006386 neutralization reaction Methods 0.000 claims description 20
- HEMHJVSKTPXQMS-UHFFFAOYSA-M sodium hydroxide Inorganic materials [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 17
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 14
- 229910052760 oxygen Inorganic materials 0.000 claims description 14
- 239000001301 oxygen Substances 0.000 claims description 14
- 239000003814 drug Substances 0.000 claims description 13
- QAOWNCQODCNURD-UHFFFAOYSA-N sulfuric acid group Chemical group S(O)(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims description 12
- AHEWZZJEDQVLOP-UHFFFAOYSA-N monobromobimane Chemical compound BrCC1=C(C)C(=O)N2N1C(C)=C(C)C2=O AHEWZZJEDQVLOP-UHFFFAOYSA-N 0.000 claims description 8
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 claims description 6
- 238000006243 chemical reaction Methods 0.000 claims description 6
- 239000000575 pesticide Substances 0.000 claims description 6
- AXCZMVOFGPJBDE-UHFFFAOYSA-L calcium dihydroxide Chemical compound [OH-].[OH-].[Ca+2] AXCZMVOFGPJBDE-UHFFFAOYSA-L 0.000 claims description 4
- 239000001257 hydrogen Substances 0.000 claims description 2
- 229910052739 hydrogen Inorganic materials 0.000 claims description 2
- -1 hydrogen Sodium hydroxide Chemical class 0.000 claims 1
- 238000010790 dilution Methods 0.000 abstract description 8
- 239000012895 dilution Substances 0.000 abstract description 8
- 230000000593 degrading effect Effects 0.000 abstract description 5
- 239000000243 solution Substances 0.000 description 15
- 150000003839 salts Chemical class 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- 244000005700 microbiome Species 0.000 description 5
- 241000894006 Bacteria Species 0.000 description 3
- 231100000614 poison Toxicity 0.000 description 3
- 230000007096 poisonous effect Effects 0.000 description 3
- 239000002253 acid Substances 0.000 description 2
- 206010059866 Drug resistance Diseases 0.000 description 1
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 238000012271 agricultural production Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000004071 biological effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 229940079593 drug Drugs 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000009432 framing Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000010802 sludge Substances 0.000 description 1
- 229910052717 sulfur Inorganic materials 0.000 description 1
- 239000011593 sulfur Substances 0.000 description 1
- 230000004083 survival effect Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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
- C02F1/66—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
- 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
- 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
- C02F2103/343—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 pharmaceutical industry, e.g. containing antibiotics
-
- 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
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/02—Aerobic 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 present invention provides a kind of pesticide waste water treatment device and agricultural chemicals waste water processing method, described pesticide waste water treatment device include neutralizing tank, circulation aerobic biochemical reaction tank, strengthening aerobic biochemical reaction tank, ozone oxidation reaction pond, connect the outlet in described ozone oxidation reaction pond and the water inlet of described circulation aerobic biochemical reaction tank connecting pipe and will part process after agricultural chemicals waste water discharge the discharge line in described ozone oxidation pond；Thus avoid can the biochemical Organic substance consumption to ozone, the biorefractory organic that the ozone in ozone oxidation reaction pond has more pointedly in degrading pesticide waste water, reduce the dosage of ozone, and then saved operating cost；Simultaneously, agricultural chemicals waste water in circulation aerobic biochemical reaction tank is diluted in passing back into circulation aerobic biochemical reaction tank again by the agricultural chemicals waste water part discharged in ozone oxidation reaction pond, without additionally adding dilution water, and the problem solving biochemical system anti-impact force difference.
Description
Technical field
The present invention relates to field of waste water treatment, particularly relate to a kind of ozone usage amount that can reduce and save dilution water simultaneously
Pesticide waste water treatment device and agricultural chemicals waste water processing method.
Background technology
Pesticide has played vital effect in agricultural production, has effectively promoted the development of modern agriculture.But,
Substantial amounts of agricultural chemicals waste water, according to incompletely statistics, the agriculture that whole nation pesticide industry discharges every year can be produced in the production process of pesticide
Medicine waste water is about tens00000000 tons, and wherein agricultural chemicals waste water handling rate is less than 10%, and processes and up to standard only account for processed percent
Several.
Agricultural chemicals waste water has following several feature: (1) organic concentration is high；(2) complicated component, change of water quality is big；(3) salt
Content is high；(4) hardly degraded organic substance content is high.At present, enterprise the most first uses materializing strategy agricultural chemicals waste water, useless to remove pesticide
Part hardly degraded organic substance in water, and improve the biodegradability of agricultural chemicals waste water, then use routine biochemistry system to agricultural chemicals waste water
Carry out biochemical treatment.
But, owing to the concentration of agricultural chemicals waste water is higher, materializing strategy needs to consume substantial amounts of medicament, and operating cost is higher；
Meanwhile, the activated sludge concentration of routine biochemistry system is low, and biology drug resistance is poor, and biochemical system is easily hit, therefore, and agricultural chemicals waste water
Biochemical system could be introduced after needing dilution for many times and carry out biochemical treatment, cause the waste of dilution water.
In view of this, it is necessary to provide a kind of new pesticide waste water treatment device and agricultural chemicals waste water processing method with in solution
State problem.
Summary of the invention
It is an object of the invention to provide a kind of ozone usage amount that can reduce to save at the agricultural chemicals waste water of dilution water simultaneously
Reason device and agricultural chemicals waste water processing method.
For achieving the above object, the present invention adopts the following technical scheme that a kind of pesticide waste water treatment device, including depending on
The neutralizing tank of secondary connection, in order to remove part in described agricultural chemicals waste water can biochemical organic circulation aerobic biochemical reaction tank,
In order to remove further in agricultural chemicals waste water can biochemical Organic substance and the strengthening aerobic biochemical reaction tank of ammonia nitrogen and in order to remove
The ozone oxidation reaction pond of biorefractory organic in agricultural chemicals waste water, described pesticide waste water treatment device also includes and described neutralizing tank
It is connected in described neutralizing tank, add charging device and the described circulation aerobic biochemical reaction tank neutralizing medicament and described
Strengthening aerobic biochemical reaction tank is all connected to carry to described circulation aerobic biochemical reaction tank and strengthening aerobic biochemical reaction tank
For air air compressing device, provide ozone to described ozone oxidation reaction pond for ozone equipment, to connect described ozone oxidation anti-
The connecting pipe of the water inlet of the outlet of Ying Chi and described circulation aerobic biochemical reaction tank and will part process after pesticide
Waste water discharges the discharge line in described ozone oxidation reaction pond；In agricultural chemicals waste water processing procedure, described agricultural chemicals waste water warp successively
Cross neutralizing tank, circulation aerobic biochemical reaction tank, strengthening aerobic biochemical reaction tank and ozone oxidation reaction pond.
As further improved technical scheme of the present invention, described strengthening aerobic biochemical reaction tank is in MBR, BAF, MBBR
One.
As further improved technical scheme of the present invention, the biological concentration in described circulation aerobic biochemical reaction tank is
3000mg/L~10000mg/L。
For achieving the above object, the present invention also provides at the agricultural chemicals waste water of a kind of above-mentioned pesticide waste water treatment device
Reason method, described agricultural chemicals waste water processing method comprises the steps:
S1: introduced by agricultural chemicals waste water in neutralizing tank, adds and neutralizes medicament and be neutralized, the pH value of regulation agricultural chemicals waste water between 6.0 ~
Between 8.0；
S2: be circulated aerobic treatment, to go in the agricultural chemicals waste water after neutralized is introduced circulation aerobic biochemical reaction tank
Except the part in agricultural chemicals waste water can biochemical Organic substance；
S3: carry out strengthening aerobic life in the agricultural chemicals waste water after circulation aerobic treatment is introduced strengthening aerobic biochemical reaction tank
Change processes, with remove further in agricultural chemicals waste water can biochemical Organic substance and ammonia nitrogen；
S4: the agricultural chemicals waste water after strengthening aerobic treatment is introduced ozone oxidation reaction pond and carries out ozone Oxidation Treatment, with
Remove the biorefractory organic in agricultural chemicals waste water；
S5: the agricultural chemicals waste water part after ozone Oxidation Treatment is back to circulate in aerobic biochemical reaction tank through connecting pipe,
Another part directly discharges through discharge line；The water yield wherein refluxed and self-neutralization tank enter in circulation aerobic biochemical reaction tank
The ratio of agricultural chemicals waste water is 1:1 ~ 5:1.
As further improved technical scheme of the present invention, described neutralization medicament is sulfuric acid solution, sodium hydroxide solution, salt
Acid solution or lime water.
As further improved technical scheme of the present invention, the biological concentration in described circulation aerobic biochemical reaction tank is
3000mg/L~10000mg/L。
As further improved technical scheme of the present invention, the dissolved oxygen in described circulation aerobic biochemical reaction tank is
1.5mg/L~4.0mg/L；It is 40 hours ~ 80 hours that agricultural chemicals waste water is circulated the time of aerobic treatment.
As further improved technical scheme of the present invention, the dissolved oxygen in described strengthening aerobic biochemical reaction tank is
2.0mg/L~6.0mg/L；Agricultural chemicals waste water carry out strengthen aerobic treatment time be 10 hours ~ 25 hours.
As further improved technical scheme of the present invention, the ozone dosage in described ozone oxidation reaction pond is
150mg/L~1000 mg/L；It is 2 hours ~ 6 hours that agricultural chemicals waste water carries out the time of ozone Oxidation Treatment.
As further improved technical scheme of the present invention, described strengthening aerobic biochemical reaction tank is in MBR, BAF, MBBR
One.
The invention has the beneficial effects as follows: the agricultural chemicals waste water in the present invention first sequentially passed through before carrying out ozone Oxidation Treatment
Circulation aerobic biochemical reaction tank and strengthening aerobic biochemical reaction tank carry out biochemical treatment with remove in agricultural chemicals waste water can be biochemical
Organic substance and ammonia nitrogen, described agricultural chemicals waste water is when carrying out ozone Oxidation Treatment, it is to avoid biochemical Organic substance can disappear ozone
Consumption, the biorefractory organic that the ozone in ozone oxidation reaction pond has more pointedly in degrading pesticide waste water, reduces
The dosage of ozone, and then saved operating cost；Meanwhile, the agricultural chemicals waste water part discharged in ozone oxidation reaction pond is again
The agricultural chemicals waste water entered self-neutralization tank in circulation aerobic biochemical reaction tank in passing back into circulation aerobic biochemical reaction tank carries out dilute
Release, it is not necessary to additionally add dilution water, not only reduce in the agricultural chemicals waste water that self-neutralization tank enters in circulation aerobic biochemical reaction tank
The concentration of poisonous and harmful substance, and the problem solving biochemical system anti-impact force difference.
Accompanying drawing explanation
Fig. 1 is the structural framing schematic diagram of the pesticide waste water treatment device in the present invention.
Fig. 2 is the flow chart of the agricultural chemicals waste water processing method in the present invention.
Detailed description of the invention
Describe the present invention below with reference to each embodiment shown in the drawings, refer to Fig. 1 to Fig. 2 institute
Show, for the better embodiment of the present invention.
Please join shown in Fig. 1, the present invention provides a kind of pesticide waste water treatment device, for processing the agricultural chemicals waste water of high concentration,
The COD of general agricultural chemicals waste water is 5000mg/L ~ 50000mg/L, and ammonia-nitrogen content is 50mg/L ~ 300mg/L, and salt content is 1% ~ 4%,
PH value is between 4 ~ 10.
Described processing means includes that neutralizing tank is connected with described neutralizing tank to add neutralization medicament in described neutralizing tank
Charging device, can biochemical organic circulation aerobic biochemical reaction tank, use in order to remove part in described agricultural chemicals waste water
With remove further in agricultural chemicals waste water can the strengthening aerobic biochemical reaction tank of biochemical Organic substance and ammonia nitrogen aerobic with described circulation
Biochemical reaction tank and described strengthening aerobic biochemical reaction tank are all connected with to described circulation aerobic biochemical reaction tank and strong
Change aerobic biochemical reaction tank and the air compressing device, anti-in order to remove the ozone oxidation of biorefractory organic in agricultural chemicals waste water of air is provided
Ying Chi, provide ozone to described ozone oxidation reaction pond for ozone equipment, connect the outlet in described ozone oxidation reaction pond
With the connecting pipe of the water inlet of described circulation aerobic biochemical reaction tank and will part process after agricultural chemicals waste water discharge described
The discharge line in ozone oxidation reaction pond.
Described neutralizing tank, circulation aerobic biochemical reaction tank, strengthening aerobic biochemical reaction tank and ozone oxidation reaction pond depend on
Secondary connection, in agricultural chemicals waste water processing procedure, described agricultural chemicals waste water sequentially pass through neutralizing tank regulation pH, through circulation aerobic biochemical anti-
Answer pond to remove the part in agricultural chemicals waste water biochemical Organic substance, strengthening aerobic biochemical reaction tank can remove ammonia nitrogen further and can give birth to
Change Organic substance, the biorefractory organic removing in agricultural chemicals waste water through ozone oxidation reaction pond, make the COD in the agricultural chemicals waste water of discharge
Less than 500mg/L, ammonia-nitrogen content is less than 35 mg/L simultaneously, reaches discharge standard, it is possible to discharge directly from described discharge line.
Described agricultural chemicals waste water first passes through circulation aerobic biochemical reaction tank and strengthening aerobic biochemical reaction tank utilizes renewable
Microorganism remove can biochemical Organic substance；Carry out ozone Oxidation Treatment again, it is to avoid can the biochemical Organic substance consumption to ozone, make
Ozone oxidation has more the biorefractory organic in degrading pesticide waste water pointedly, reduces the dosage of ozone, Jin Erjie
About operating cost.
Described charging device neutralizes medicament in order to add in described neutralizing tank, the pH value of regulation agricultural chemicals waste water between 6.0 ~
To meet microbe survival condition between 8.0, it is to avoid agricultural chemicals waste water is to circulation aerobic biochemical reaction tank and strengthening aerobic biochemical
Microorganism in reaction tank produces impact.
Biological concentration in described circulation aerobic biochemical reaction tank is 3000mg/L ~ 10000mg/L, and by described pneumatics
Device makes the dissolved oxygen in described circulation aerobic biochemical reaction tank be 1.5mg/L ~ 4.0mg/L, so that described circulation aerobic biochemical
Microorganism in reaction tank has the strongest biological activity, thus improves microorganism and to the adaptation ability of agricultural chemicals waste water and process effect
Rate, it is possible to remove the part in agricultural chemicals waste water can biochemical Organic substance, and expand the application model of circulation aerobic biochemical reaction tank
Enclosing, make circulation aerobic biochemical reaction tank processes the situation that load, load variations are all adapted to the agricultural chemicals waste water of high concentration.
Described strengthening aerobic biochemical reaction tank is the one in MBR, BAF, MBBR, aerobic strengthening agricultural chemicals waste water
During biochemical treatment, the dissolved oxygen in described strengthening aerobic biochemical reaction tank is made to be 2.0mg/L ~ 6.0mg/ by described air compressing device
L, the growth for microorganisms such as oligotrophic bacterias creates favorable conditions, and the part making in agricultural chemicals waste water residual can biochemical Organic substance energy
Enough continue to be degraded；Simultaneous Nitrification bacterium becomes main bacteria seed, can biochemical organic remove in agricultural chemicals waste water in degraded simultaneously
Ammonia nitrogen.
Described for ozone equipment for the ozone generating-device being connected with described ozone oxidation reaction pond or other can provide
The device of ozone, with when described agricultural chemicals waste water carries out ozone Oxidation Treatment, provides ozone to described ozone oxidation pond, makes described
Ozone dosage in ozone oxidation pond is 150mg/L ~ 1000mg/L, in order to biorefractory organic in degrading pesticide waste water.
The agricultural chemicals waste water processed through described ozone oxidation reaction pond has reached discharge standard, and a part is through communicating pipe
Road enters with the agricultural chemicals waste water entered self-neutralization tank in circulation aerobic biochemical reaction tank in being back to circulate aerobic biochemical reaction tank
Row dilution, it is not necessary to additionally add dilution water, the pesticide not only reduced in self-neutralization tank entrance circulation aerobic biochemical reaction tank gives up
The concentration of the poisonous and harmful substance in water, and the problem solving biochemical system anti-impact force difference；Another part is through discharge pipe
Road discharges.
Please join shown in Fig. 2, the present invention also provides for a kind of utilizing above-mentioned pesticide waste water treatment device to process agricultural chemicals waste water
Agricultural chemicals waste water processing method, described agricultural chemicals waste water processing method following steps:
S1: introduced by agricultural chemicals waste water in neutralizing tank, adds neutralization medicament and is neutralized, make the pH value of the agricultural chemicals waste water after neutralization be situated between
Between 6.0 ~ 8.0；
S2: be circulated aerobic treatment, to go in the agricultural chemicals waste water after neutralized is introduced circulation aerobic biochemical reaction tank
Except the part in agricultural chemicals waste water can biochemical Organic substance；
S3: carry out strengthening aerobic life in the agricultural chemicals waste water after circulation aerobic treatment is introduced strengthening aerobic biochemical reaction tank
Change processes, with remove further in agricultural chemicals waste water can biochemical Organic substance and ammonia nitrogen；
S4: the agricultural chemicals waste water after strengthening aerobic treatment is introduced ozone oxidation reaction pond and carries out ozone Oxidation Treatment, with
Remove the biorefractory organic in agricultural chemicals waste water.
S5: the agricultural chemicals waste water part after ozone Oxidation Treatment is back to circulate aerobic biochemical reaction tank through connecting pipe
In, another part directly discharges through discharge line；The water yield wherein refluxed and self-neutralization tank enter circulation aerobic biochemical reaction tank
The ratio of interior agricultural chemicals waste water is 1:1 ~ 5:1.
Further, described neutralization medicament is sulfuric acid solution, sodium hydroxide solution, hydrochloric acid solution or lime water, described sulfur
Acid solution, sodium hydroxide solution, hydrochloric acid solution, the concentration of lime water do not limit, and such as, the concentration of sulfuric acid solution can be 98%, hydrogen
The concentration of sodium hydroxide solution can be 32%, selects corresponding neutralization medicament pair according to the pH value of the agricultural chemicals waste water introducing neutralizing tank
Agricultural chemicals waste water is neutralized.
Further, the biological concentration in described circulation aerobic biochemical reaction tank is 3000mg/L ~ 10000mg/L, described
Dissolved oxygen in circulation aerobic biochemical reaction tank is 1.5mg/L ~ 4.0mg/L, and agricultural chemicals waste water is circulated aerobic treatment
Time is 40 hours ~ 80 hours, with remove in described agricultural chemicals waste water part can biochemical Organic substance.
Further, the dissolved oxygen in described strengthening aerobic biochemical reaction tank is 2.0mg/L ~ 6.0mg/L, and agricultural chemicals waste water enters
The time of row strengthening aerobic treatment is 10 hours ~ 25 hours, with remove further in agricultural chemicals waste water can biochemical Organic substance
And ammonia nitrogen.
Further, the ozone dosage in described ozone oxidation reaction pond is 150mg/L ~ 1000mg/L, agricultural chemicals waste water
The time carrying out ozone Oxidation Treatment is 2 hours ~ 6 hours, to remove the biorefractory organic in agricultural chemicals waste water, through ozone oxidation
The COD in agricultural chemicals waste water after process is less than 500mg/L, and ammonia-nitrogen content is less than 35 mg/L simultaneously, reaches discharge standard.
Below by the pesticide waste water treatment device illustrated with three detailed description of the invention in the present invention and agricultural chemicals waste water
Reason method.
In the first embodiment, the COD of pending agricultural chemicals waste water is 5000mg/L, and ammonia-nitrogen content is 100mg/L, salt
Content is 1.5%, and pH value is 4.0.
Use the processing means of the present invention, and according to the agricultural chemicals waste water processing method in the present invention, above-mentioned agricultural chemicals waste water is entered
Row processes, and in present embodiment, described strengthening aerobic biochemical reaction tank is MBR.Concrete process step is as follows:
Being introduced in neutralizing tank by above-mentioned agricultural chemicals waste water, and add the sodium hydroxide solution that concentration is 32% and be neutralized, regulation is described
The pH value of agricultural chemicals waste water is to 6.0；
It is circulated aerobic treatment 40 hours in agricultural chemicals waste water after neutralized is introduced circulation aerobic biochemical reaction tank, with
Time maintain circulation aerobic biochemical reaction tank in dissolved oxygen be 1.5mg/L ~ 4.0mg/L；
Carry out strengthening aerobic treatment 10 hours, simultaneously in agricultural chemicals waste water after circulation aerobic treatment is introduced MBR
Maintaining the dissolved oxygen in MBR is 2.0mg/L ~ 6.0mg/L；
Ozone Oxidation Treatment 2 is carried out little in agricultural chemicals waste water after strengthening aerobic treatment is introduced ozone oxidation reaction pond
Time, meanwhile, ozone dosage is 150mg/L；
An agricultural chemicals waste water part after ozone Oxidation Treatment is back to circulate in aerobic biochemical reaction tank, and another part is directly arranged
Put；The ratio of the water yield that the water yield wherein refluxed and self-neutralization tank enter the agricultural chemicals waste water in circulation aerobic biochemical reaction tank is 1:1.
As can be seen from Table 1, the COD in agricultural chemicals waste water after ozone Oxidation Treatment is less than 500mg/L, and ammonia nitrogen contains simultaneously
Amount, less than 35 mg/L, reaches discharge standard, and treatment effect is preferable.
In the second embodiment, the COD of pending agricultural chemicals waste water is 32000mg/L, and ammonia-nitrogen content is 300mg/L,
Salt content is 4%, and pH value is 9.5.
Use the processing means of the present invention, and according to the agricultural chemicals waste water processing method in the present invention, above-mentioned agricultural chemicals waste water is entered
Row processes, and in present embodiment, described strengthening aerobic biochemical reaction tank is BAF.Concrete process step is as follows:
Above-mentioned agricultural chemicals waste water is introduced in neutralizing tank, and adds sulfuric acid solution and be neutralized, regulate the pH value of described agricultural chemicals waste water
To 8.0；
It is circulated aerobic treatment 65 hours in agricultural chemicals waste water after neutralized is introduced circulation aerobic biochemical reaction tank, with
Time maintain circulation aerobic biochemical reaction tank in dissolved oxygen be 2.0mg/L ~ 4.0mg/L；
Carry out strengthening aerobic treatment 15 hours, simultaneously in agricultural chemicals waste water after circulation aerobic treatment is introduced BAF
Maintaining the dissolved oxygen in BAF is 2.0mg/L ~ 6.0mg/L；
Ozone Oxidation Treatment 5 is carried out little in agricultural chemicals waste water after strengthening aerobic treatment is introduced ozone oxidation reaction pond
Time, meanwhile, ozone dosage is 900mg/L；
An agricultural chemicals waste water part after ozone Oxidation Treatment is back to circulate in aerobic biochemical reaction tank, and another part is directly arranged
Put；The ratio of the water yield that the water yield wherein refluxed and self-neutralization tank enter the agricultural chemicals waste water in circulation aerobic biochemical reaction tank is 4:1.
As can be seen from Table 2, the COD in agricultural chemicals waste water after ozone Oxidation Treatment is less than 500mg/L, and ammonia nitrogen contains simultaneously
Amount, less than 35 mg/L, reaches discharge standard, and treatment effect is preferable.
In the 3rd embodiment, the COD of pending agricultural chemicals waste water is 50000mg/L, and ammonia-nitrogen content is 300mg/L,
Salt content is 3.5%, and pH value is 9.0.
Use the processing means of the present invention, and according to the agricultural chemicals waste water processing method in the present invention, above-mentioned agricultural chemicals waste water is entered
Row processes, and in present embodiment, described strengthening aerobic biochemical reaction tank is MBBR.Concrete process step is as follows:
Above-mentioned agricultural chemicals waste water is introduced in neutralizing tank, and adds sulfuric acid solution and be neutralized, regulate the pH value of described agricultural chemicals waste water
To 7.5；
It is circulated aerobic treatment 80 hours in agricultural chemicals waste water after neutralized is introduced circulation aerobic biochemical reaction tank, with
Time maintain circulation aerobic biochemical reaction tank in dissolved oxygen be 2.0mg/L ~ 4.0mg/L；
Carry out strengthening aerobic treatment 25 hours, simultaneously in agricultural chemicals waste water after circulation aerobic treatment is introduced MBBR
Maintaining the dissolved oxygen in MBBR is 2.0mg/L ~ 6.0mg/L；
Ozone Oxidation Treatment 6 is carried out little in agricultural chemicals waste water after strengthening aerobic treatment is introduced ozone oxidation reaction pond
Time, meanwhile, ozone dosage is 1000mg/L；
An agricultural chemicals waste water part after ozone Oxidation Treatment is back to circulate in aerobic biochemical reaction tank, and another part is directly arranged
Put；The ratio of the water yield that the water yield wherein refluxed and self-neutralization tank enter the agricultural chemicals waste water in circulation aerobic biochemical reaction tank is 1:5.
As can be seen from Table 3, the COD in agricultural chemicals waste water after ozone Oxidation Treatment is less than 500mg/L, and ammonia nitrogen contains simultaneously
Amount, less than 35 mg/L, reaches discharge standard, and treatment effect is preferable.
In sum, the agricultural chemicals waste water in the present invention first sequentially passed through the aerobic life of circulation before carrying out ozone Oxidation Treatment
Change reaction tank and strengthening aerobic biochemical reaction tank carry out biochemical treatment with remove in agricultural chemicals waste water can biochemical Organic substance and
Ammonia nitrogen, described agricultural chemicals waste water is when carrying out ozone Oxidation Treatment, it is to avoid can the biochemical Organic substance consumption to ozone, ozone oxidation
The biorefractory organic that ozone in reaction tank has more pointedly in degrading pesticide waste water, reduces adding of ozone
Amount, and then saved operating cost；Meanwhile, the agricultural chemicals waste water discharged in ozone oxidation reaction pond is partially into the aerobic life of circulation
The agricultural chemicals waste water entered self-neutralization tank in circulation aerobic biochemical reaction tank in changing reaction tank is diluted, it is not necessary to additionally add dilute
Release water, not only reduce self-neutralization tank and enter poisonous and harmful substance dense in the agricultural chemicals waste water in circulation aerobic biochemical reaction tank
Degree, and the problem solving biochemical system anti-impact force difference.
It is to be understood that, although this specification is been described by according to embodiment, but the most each embodiment only comprises one
Individual independent technical scheme, this narrating mode of description is only that for clarity sake those skilled in the art should will say
Bright book is as an entirety, and the technical scheme in each embodiment can also be through appropriately combined, and forming those skilled in the art can
With other embodiments understood.
The a series of detailed description of those listed above is only for the feasibility embodiment of the present invention specifically
Bright, they also are not used to limit the scope of the invention, all equivalent implementations made without departing from skill of the present invention spirit
Or change should be included within the scope of the present invention.
Claims (10)
1. a pesticide waste water treatment device, it is characterised in that: include the neutralizing tank being sequentially connected with, in order to remove described pesticide give up
Part in water can biochemical organic circulation aerobic biochemical reaction tank, in order to remove further can have by biochemistry in agricultural chemicals waste water
The strengthening aerobic biochemical reaction tank of machine thing and ammonia nitrogen and anti-in order to remove the ozone oxidation of biorefractory organic in agricultural chemicals waste water
Ying Chi, described pesticide waste water treatment device also includes being connected with described neutralizing tank to add neutralization medicament in described neutralizing tank
Charging device be all connected with described circulation aerobic biochemical reaction tank and described strengthening aerobic biochemical reaction tank with to described
Circulation aerobic biochemical reaction tank and strengthening aerobic biochemical reaction tank provide the air compressing device of air, to described ozone oxidation reaction
Pond provides the outlet for ozone equipment, connecting described ozone oxidation reaction pond of ozone and described circulation aerobic biochemical reaction tank
Water inlet connecting pipe and will part process after agricultural chemicals waste water discharge described ozone oxidation reaction pond discharge line；
In agricultural chemicals waste water processing procedure, described agricultural chemicals waste water sequentially passes through neutralizing tank, circulation aerobic biochemical reaction tank, strengthens aerobic life
Change reaction tank and ozone oxidation reaction pond.
2. pesticide waste water treatment device as claimed in claim 1, it is characterised in that: described strengthening aerobic biochemical reaction tank is
One in MBR, BAF, MBBR.
3. pesticide waste water treatment device as claimed in claim 1, it is characterised in that: in described circulation aerobic biochemical reaction tank
Biological concentration is 3000mg/L ~ 10000mg/L.
4. use in claim 1 ~ 3 an agricultural chemicals waste water processing method for pesticide waste water treatment device described in any one,
It is characterized in that: described agricultural chemicals waste water processing method comprises the steps:
S1: introduced by agricultural chemicals waste water in neutralizing tank, adds and neutralizes medicament and be neutralized, the pH value of regulation agricultural chemicals waste water between 6.0 ~
Between 8.0；
S2: be circulated aerobic treatment, to go in the agricultural chemicals waste water after neutralized is introduced circulation aerobic biochemical reaction tank
Except the part in agricultural chemicals waste water can biochemical Organic substance；
S3: carry out strengthening aerobic life in the agricultural chemicals waste water after circulation aerobic treatment is introduced strengthening aerobic biochemical reaction tank
Change processes, with remove further in agricultural chemicals waste water can biochemical Organic substance and ammonia nitrogen；
S4: the agricultural chemicals waste water after strengthening aerobic treatment is introduced ozone oxidation reaction pond and carries out ozone Oxidation Treatment, with
Remove the biorefractory organic in agricultural chemicals waste water；
S5: the agricultural chemicals waste water part after ozone Oxidation Treatment is back to circulate in aerobic biochemical reaction tank through connecting pipe,
Another part directly discharges through discharge line；The water yield wherein refluxed and self-neutralization tank enter in circulation aerobic biochemical reaction tank
The ratio of agricultural chemicals waste water is 1:1 ~ 5:1.
5. agricultural chemicals waste water processing method as claimed in claim 4, it is characterised in that: described neutralization medicament is sulfuric acid solution, hydrogen
Sodium hydroxide solution, hydrochloric acid solution or lime water.
6. agricultural chemicals waste water processing method as claimed in claim 4, it is characterised in that: in described circulation aerobic biochemical reaction tank
Biological concentration is 3000mg/L ~ 10000mg/L.
7. the agricultural chemicals waste water processing method as described in claim 4 or 6, it is characterised in that: described circulation aerobic biochemical reaction tank
Interior dissolved oxygen is 1.5mg/L ~ 4.0mg/L；It is 40 hours ~ 80 little that agricultural chemicals waste water is circulated the time of aerobic treatment
Time.
8. agricultural chemicals waste water processing method as claimed in claim 4, it is characterised in that: in described strengthening aerobic biochemical reaction tank
Dissolved oxygen is 2.0mg/L ~ 6.0mg/L；Agricultural chemicals waste water carry out strengthen aerobic treatment time be 10 hours ~ 25 hours.
9. agricultural chemicals waste water processing method as claimed in claim 4, it is characterised in that: the ozone in described ozone oxidation reaction pond
Dosage is 150mg/L ~ 1000 mg/L；It is 2 hours ~ 6 hours that agricultural chemicals waste water carries out the time of ozone Oxidation Treatment.
10. processing method as claimed in claim 4, it is characterised in that: described strengthening aerobic biochemical reaction tank is MBR, BAF,
One in MBBR.
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| CN201610802503.XA CN106116064A (en) | 2016-09-05 | 2016-09-05 | A kind of pesticide waste water treatment device and agricultural chemicals waste water processing method |
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| CN201610802503.XA CN106116064A (en) | 2016-09-05 | 2016-09-05 | A kind of pesticide waste water treatment device and agricultural chemicals waste water processing method |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111377577A (en) * | 2019-12-18 | 2020-07-07 | 华北水利水电大学 | Waste water treatment equipment for pesticide production |
| CN119038811A (en) * | 2024-10-09 | 2024-11-29 | 安徽华星化工有限公司 | Recycling recovery treatment method and system for herbicide pesticide wastewater |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111377577A (en) * | 2019-12-18 | 2020-07-07 | 华北水利水电大学 | Waste water treatment equipment for pesticide production |
| CN119038811A (en) * | 2024-10-09 | 2024-11-29 | 安徽华星化工有限公司 | Recycling recovery treatment method and system for herbicide pesticide wastewater |
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