CN112960848A - Water body blue algae and green algae treatment method with synergistic effect - Google Patents
Water body blue algae and green algae treatment method with synergistic effect Download PDFInfo
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- 241000195493 Cryptophyta Species 0.000 title claims abstract description 45
- 241000195628 Chlorophyta Species 0.000 title claims abstract description 42
- 238000000034 method Methods 0.000 title claims abstract description 24
- 230000002195 synergetic effect Effects 0.000 title claims abstract description 18
- 238000011282 treatment Methods 0.000 title claims abstract description 18
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 22
- 239000000126 substance Substances 0.000 claims abstract description 19
- 239000008394 flocculating agent Substances 0.000 claims abstract description 18
- 239000003619 algicide Substances 0.000 claims abstract description 17
- 238000011221 initial treatment Methods 0.000 claims abstract description 9
- 241000196324 Embryophyta Species 0.000 claims description 25
- 239000000701 coagulant Substances 0.000 claims description 25
- 229940037003 alum Drugs 0.000 claims description 15
- YRIZYWQGELRKNT-UHFFFAOYSA-N 1,3,5-trichloro-1,3,5-triazinane-2,4,6-trione Chemical compound ClN1C(=O)N(Cl)C(=O)N(Cl)C1=O YRIZYWQGELRKNT-UHFFFAOYSA-N 0.000 claims description 10
- 229910021578 Iron(III) chloride Inorganic materials 0.000 claims description 10
- ROHFNLRQFUQHCH-YFKPBYRVSA-N L-leucine Chemical compound CC(C)C[C@H](N)C(O)=O ROHFNLRQFUQHCH-YFKPBYRVSA-N 0.000 claims description 10
- DIZPMCHEQGEION-UHFFFAOYSA-H aluminium sulfate (anhydrous) Chemical compound [Al+3].[Al+3].[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O DIZPMCHEQGEION-UHFFFAOYSA-H 0.000 claims description 10
- VSCWAEJMTAWNJL-UHFFFAOYSA-K aluminium trichloride Chemical compound Cl[Al](Cl)Cl VSCWAEJMTAWNJL-UHFFFAOYSA-K 0.000 claims description 10
- RBTARNINKXHZNM-UHFFFAOYSA-K iron trichloride Chemical compound Cl[Fe](Cl)Cl RBTARNINKXHZNM-UHFFFAOYSA-K 0.000 claims description 10
- RUTXIHLAWFEWGM-UHFFFAOYSA-H iron(3+) sulfate Chemical compound [Fe+3].[Fe+3].[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O RUTXIHLAWFEWGM-UHFFFAOYSA-H 0.000 claims description 10
- 229910000360 iron(III) sulfate Inorganic materials 0.000 claims description 10
- 229950009390 symclosene Drugs 0.000 claims description 10
- 241000192700 Cyanobacteria Species 0.000 claims description 6
- KCXVZYZYPLLWCC-UHFFFAOYSA-N EDTA Chemical compound OC(=O)CN(CC(O)=O)CCN(CC(O)=O)CC(O)=O KCXVZYZYPLLWCC-UHFFFAOYSA-N 0.000 claims description 5
- 240000006053 Garcinia mangostana Species 0.000 claims description 5
- 235000017048 Garcinia mangostana Nutrition 0.000 claims description 5
- 239000004395 L-leucine Substances 0.000 claims description 5
- 235000019454 L-leucine Nutrition 0.000 claims description 5
- 241000209490 Nymphaea Species 0.000 claims description 5
- 235000016791 Nymphaea odorata subsp odorata Nutrition 0.000 claims description 5
- 235000003283 Pachira macrocarpa Nutrition 0.000 claims description 5
- 235000008331 Pinus X rigitaeda Nutrition 0.000 claims description 5
- 235000011613 Pinus brutia Nutrition 0.000 claims description 5
- 241000018646 Pinus brutia Species 0.000 claims description 5
- 239000004698 Polyethylene Substances 0.000 claims description 5
- 235000014364 Trapa natans Nutrition 0.000 claims description 5
- ZEMWIYASLJTEHQ-UHFFFAOYSA-J aluminum;sodium;disulfate;dodecahydrate Chemical compound O.O.O.O.O.O.O.O.O.O.O.O.[Na+].[Al+3].[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O ZEMWIYASLJTEHQ-UHFFFAOYSA-J 0.000 claims description 5
- 229960001484 edetic acid Drugs 0.000 claims description 5
- 235000003891 ferrous sulphate Nutrition 0.000 claims description 5
- 239000011790 ferrous sulphate Substances 0.000 claims description 5
- BAUYGSIQEAFULO-UHFFFAOYSA-L iron(2+) sulfate (anhydrous) Chemical compound [Fe+2].[O-]S([O-])(=O)=O BAUYGSIQEAFULO-UHFFFAOYSA-L 0.000 claims description 5
- 229910000359 iron(II) sulfate Inorganic materials 0.000 claims description 5
- 229960003136 leucine Drugs 0.000 claims description 5
- -1 polyethylene Polymers 0.000 claims description 5
- 229920000573 polyethylene Polymers 0.000 claims description 5
- 239000002994 raw material Substances 0.000 claims description 5
- 235000009165 saligot Nutrition 0.000 claims description 5
- 229910001388 sodium aluminate Inorganic materials 0.000 claims description 5
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- 240000002853 Nelumbo nucifera Species 0.000 claims description 2
- 235000006508 Nelumbo nucifera Nutrition 0.000 claims description 2
- 235000006510 Nelumbo pentapetala Nutrition 0.000 claims description 2
- 240000001085 Trapa natans Species 0.000 claims 1
- 230000002378 acidificating effect Effects 0.000 abstract description 2
- 241001083492 Trapa Species 0.000 description 4
- 229940109850 royal jelly Drugs 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
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- 239000010865 sewage Substances 0.000 description 2
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
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- 239000012528 membrane Substances 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 229910052698 phosphorus Inorganic materials 0.000 description 1
- 239000011574 phosphorus 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
- C02F1/40—Devices for separating or removing fatty or oily substances or similar floating material
-
- 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
- C02F1/50—Treatment of water, waste water, or sewage by addition or application of a germicide or by oligodynamic treatment
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
- C02F1/5236—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using inorganic agents
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/66—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
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/32—Biological treatment of water, waste water, or sewage characterised by the animals or plants used, e.g. algae
- C02F3/322—Biological treatment of water, waste water, or sewage characterised by the animals or plants used, e.g. algae use of algae
-
- 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
- C02F3/32—Biological treatment of water, waste water, or sewage characterised by the animals or plants used, e.g. algae
- C02F3/327—Biological treatment of water, waste water, or sewage characterised by the animals or plants used, e.g. algae characterised by animals and plants
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)
- Separation Of Suspended Particles By Flocculating Agents (AREA)
Abstract
The invention discloses a method for treating blue algae and green algae in water with a synergistic effect, which comprises the following steps: primary treatment of blue algae and green algae: throwing plant ash and a flocculating agent into a water body, wherein the throwing amount of the plant ash is 20-25 g/L, and the adding amount of the flocculating agent is 18-22 g/L; after 5-7 days of throwing the plant ash, removing water surface floating objects on the surface of the water body in a mechanical mode, and introducing CO2 into the water; fine treatment of blue algae and green algae: adding a chemical algaecide into the primarily treated water body for fine algae removal, wherein the addition amount of the chemical algaecide is 40-70 mg/L, and the core technical route is that CO2 is added to acidify the polluted water body, the pH value of the water is reduced, an acidic environment is caused, the growth of blue algae and green algae is inhibited, and then the blue algae and the green algae are treated by adding the chemical treatment agent, so that the process is simple and is worthy of popularization.
Description
Technical Field
The invention relates to the technical field of sewage treatment, in particular to a method for treating blue algae and green algae in a water body with a synergistic effect.
Background
At present, sewage treatment plants and general ecological treatment methods are mainly biochemical methods, the final products are reclaimed water which cannot be drunk and cannot be recharged with underground water, and if the ultra-membrane technology is used for further treatment, the cost is quite high, so that a method for treating blue-green algae in water with synergistic effect is needed.
Disclosure of Invention
The invention aims to provide a method for treating blue algae and green algae in water with a synergistic effect, so as to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme:
a method for treating blue algae and green algae in water with a synergistic effect comprises the following steps:
s1: primary treatment of blue algae and green algae: throwing plant ash and a flocculating agent into a water body, wherein the throwing amount of the plant ash is 20-25 g/L, and the adding amount of the flocculating agent is 18-22 g/L;
s2: after the plant ash in the step S1 is thrown for 5-7 days, floating objects on the surface of the water body are removed in a mechanical mode, CO2 is introduced into the water, and the pH value of the water body is adjusted to 5.8-6.5;
s3: fine treatment of blue algae and green algae: adding a chemical algaecide into the primarily treated water body for fine algae removal, wherein the addition amount of the chemical algaecide is 40-70 mg/L;
s4: treating organic matters in the water body: adding a coagulant into the finely treated water body, and simultaneously adjusting the pH of the water body to 6.5-7.5, wherein the addition amount of the coagulant is 50-80 mg/L;
s5: further purifying the water quality: and putting the water floating plants into the water body to further purify the water quality.
As a further scheme of the invention: the flocculating agent in the step S1 is an inorganic flocculating agent, and the inorganic flocculating agent is one or more of aluminum sulfate, aluminum chloride, ferric sulfate and ferric chloride.
As a further scheme of the invention: the chemical algaecide in the step S3 comprises a blue algae treating agent and a green algae treating agent respectively, wherein the blue algae treating agent consists of the following raw materials: 58-65 parts of mangosteen shell, 23-27 parts of polyethylene, 0.6-0.9 part of L-leucine, 0.4-0.6 part of ethylene diamine tetraacetic acid and 17-22 parts of pine needle, wherein the green algae treating agent comprises trichloroisocyanuric acid and alum.
As a further scheme of the invention: the mass ratio of the trichloroisocyanuric acid to the alum is 0.5-1.0: 0.2-0.5.
As a further scheme of the invention: the coagulant in the step S4 is any one of aluminum sulfate, ferric chloride, ferrous sulfate, alum, sodium aluminate and ferric sulfate.
As a further scheme of the invention: the coagulant is alum.
As a further scheme of the invention: the addition amount of the coagulant is 60-75 mg/L.
As a further scheme of the invention: the floating plant in water in step S5 is selected from one or more of diatom, water lily, royal lotus, water chestnut, hooknut, and Japanese apple.
Compared with the prior art, the invention has the beneficial effects that: the invention provides a method for treating blue algae and green algae in a water body with a synergistic effect, which has the core technical route that CO2 is added to acidify the polluted water body, the pH value of water is reduced, an acidic environment is caused, the growth of the blue algae and the green algae is inhibited, then the blue algae and the green algae are treated by adding a chemical treatment agent, the blue algae and the green algae in the water body are comprehensively and thoroughly treated, meanwhile, the harm degree to the water body is lower, the comprehensive improvement of the water body quality is realized, the process is simple, and the method is worthy of popularization.
Detailed Description
The technical solutions in the embodiments of the present invention are clearly and completely described below, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The first embodiment is as follows:
a method for treating blue algae and green algae in water with a synergistic effect comprises the following steps:
s1: primary treatment of blue algae and green algae: throwing plant ash and a flocculating agent into the pond, wherein the throwing amount of the plant ash is 20g/L, and the adding amount of the flocculating agent is 18 g/L;
s2: after 5 days of throwing the plant ash in the step S1, removing floating objects on the surface of the water body by a mechanical mode, introducing CO2 into the water, and adjusting the pH value of the water body to 5.8-6.5;
s3: fine treatment of blue algae and green algae: adding a chemical algaecide into the water body subjected to primary treatment for fine algae removal, wherein the addition amount of the chemical algaecide is 40 mg/L;
s4: treating organic matters in the water body: adding a coagulant into the finely treated water body, and simultaneously adjusting the pH of the water body to 6.5-7.5, wherein the addition amount of the coagulant is 50 mg/L;
s5: further purifying the water quality: and putting the water floating plants into the water body to further purify the water quality.
The flocculant in the step S1 is an inorganic flocculant, the inorganic flocculant is one or more of aluminum sulfate, aluminum chloride, ferric sulfate and ferric chloride, the chemical algaecide in the step S3 respectively comprises a blue algae treating agent and a green algae treating agent, and the blue algae treating agent consists of the following raw materials: 58 parts of mangosteen shell, 23 parts of polyethylene, 0.6 part of L-leucine, 0.4 part of ethylene diamine tetraacetic acid and 17 parts of pine needle, wherein the green alga treating agent comprises trichloroisocyanuric acid and alum, and the mass ratio of the trichloroisocyanuric acid to the alum is 0.5: 0.2, the coagulant in the step S4 is one of aluminum sulfate, ferric chloride, ferrous sulfate, alum, sodium aluminate and ferric sulfate, the coagulant is alum, the addition amount of the coagulant is 60mg/L, and the floating plants in the water body in the step S5 are one or more of diatom, water lily, royal jelly, water chestnut, hot vegetable and Japanese apple.
Example two:
a method for treating blue algae and green algae in water with a synergistic effect comprises the following steps:
s1: primary treatment of blue algae and green algae: throwing plant ash and a flocculating agent into the reservoir, wherein the throwing amount of the plant ash is 25g/L, and the adding amount of the flocculating agent is 22 g/L;
s2: after the plant ash in the step S1 is thrown for 7 days, floating objects on the surface of the water body are removed by a mechanical mode, CO2 is introduced into the water, and the pH value of the water body is adjusted to 5.8-6.5;
s3: fine treatment of blue algae and green algae: adding a chemical algaecide into the water body subjected to primary treatment for fine algae removal, wherein the addition amount of the chemical algaecide is 70 mg/L;
s4: treating organic matters in the water body: adding a coagulant into the finely treated water body, and simultaneously adjusting the pH of the water body to 6.5-7.5, wherein the addition amount of the coagulant is 80 mg/L;
s5: further purifying the water quality: and putting the water floating plants into the water body to further purify the water quality.
The flocculant in the step S1 is an inorganic flocculant, the inorganic flocculant is one or more of aluminum sulfate, aluminum chloride, ferric sulfate and ferric chloride, the chemical algaecide in the step S3 respectively comprises a blue algae treating agent and a green algae treating agent, and the blue algae treating agent consists of the following raw materials: 65 parts of mangosteen shell, 27 parts of polyethylene, 0.9 part of L-leucine, 0.6 part of ethylene diamine tetraacetic acid and 22 parts of pine needle, wherein the green alga treating agent comprises trichloroisocyanuric acid and alum, and the mass ratio of the trichloroisocyanuric acid to the alum is 1.0: 0.5, the coagulant in the step S4 is any one of aluminum sulfate, ferric chloride, ferrous sulfate, alum, sodium aluminate and ferric sulfate, the coagulant is alum, the addition amount of the coagulant is 75mg/L, and the floating plants in the water body in the step S5 are any one or more of diatom, water lily, royal jelly, water chestnut, hot vegetable and Japanese apple.
Example three:
a method for treating blue algae and green algae in water with a synergistic effect comprises the following steps:
s1: primary treatment of blue algae and green algae: throwing plant ash and a flocculating agent into the river channel, wherein the throwing amount of the plant ash is 23g/L, and the adding amount of the flocculating agent is 20 g/L;
s2: after the plant ash in the step S1 is thrown for 6 days, floating objects on the surface of the water body are removed by a mechanical mode, CO2 is introduced into the water, and the pH value of the water body is adjusted to 5.8-6.5;
s3: fine treatment of blue algae and green algae: adding a chemical algaecide into the water body subjected to primary treatment for fine algae removal, wherein the addition amount of the chemical algaecide is 55 mg/L;
s4: treating organic matters in the water body: adding a coagulant into the finely treated water body, and simultaneously adjusting the pH of the water body to 6.5-7.5, wherein the addition amount of the coagulant is 65 mg/L;
s5: further purifying the water quality: and putting the water floating plants into the water body to further purify the water quality.
The flocculant in the step S1 is an inorganic flocculant, the inorganic flocculant is one or more of aluminum sulfate, aluminum chloride, ferric sulfate and ferric chloride, the chemical algaecide in the step S3 respectively comprises a blue algae treating agent and a green algae treating agent, and the blue algae treating agent consists of the following raw materials: 61 parts of mangosteen shell, 25 parts of polyethylene, 0.8 part of L-leucine, 0.5 part of ethylene diamine tetraacetic acid and 20 parts of pine needle, wherein the green alga treating agent comprises trichloroisocyanuric acid and alum, and the mass ratio of the trichloroisocyanuric acid to the alum is 0.7: 0.4, the coagulant in the step S4 is any one of aluminum sulfate, ferric chloride, ferrous sulfate, alum, sodium aluminate and ferric sulfate, the coagulant is alum, the addition amount of the coagulant is 68mg/L, and the floating plants in the water body in the step S5 are any one or more of diatom, water lily, royal jelly, water chestnut, hot vegetable and Japanese apple.
The nitrogen content, phosphorus content and COD content were measured in example one, example two and example three, respectively, as shown in the following table:
after the treatment by the method, the water body is clear and transparent, and no green algae can grow after five months.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.
Claims (8)
1. A method for treating blue algae and green algae in water with a synergistic effect is characterized by comprising the following steps:
s1: primary treatment of blue algae and green algae: throwing plant ash and a flocculating agent into a water body, wherein the throwing amount of the plant ash is 20-25 g/L, and the adding amount of the flocculating agent is 18-22 g/L;
s2: after the plant ash in the step S1 is thrown for 5-7 days, floating objects on the surface of the water body are removed in a mechanical mode, CO2 is introduced into the water, and the pH value of the water body is adjusted to 5.8-6.5;
s3: fine treatment of blue algae and green algae: adding a chemical algaecide into the primarily treated water body for fine algae removal, wherein the addition amount of the chemical algaecide is 40-70 mg/L;
s4: treating organic matters in the water body: adding a coagulant into the finely treated water body, and simultaneously adjusting the pH of the water body to 6.5-7.5, wherein the addition amount of the coagulant is 50-80 mg/L;
s5: further purifying the water quality: and putting the water floating plants into the water body to further purify the water quality.
2. The method for treating cyanobacteria and green algae in water with synergistic effect as claimed in claim 1, wherein the flocculating agent in step S1 is an inorganic flocculating agent, and the inorganic flocculating agent is one or more of aluminum sulfate, aluminum chloride, ferric sulfate and ferric chloride.
3. The method for treating cyanobacteria and green algae in water with synergistic effect as claimed in claim 2, wherein the chemical algaecide in step S3 comprises a cyanobacteria treatment agent and a green algae treatment agent respectively, wherein the cyanobacteria treatment agent comprises the following raw materials: 58-65 parts of mangosteen shell, 23-27 parts of polyethylene, 0.6-0.9 part of L-leucine, 0.4-0.6 part of ethylene diamine tetraacetic acid and 17-22 parts of pine needle, wherein the green algae treating agent comprises trichloroisocyanuric acid and alum.
4. The method for treating blue algae and green algae in water with synergistic effect according to claim 3, wherein the mass ratio of trichloroisocyanuric acid to alum is 0.5-1.0: 0.2-0.5.
5. The method for treating blue algae and green algae in water body with synergistic effect according to claim 4, wherein the coagulant in step S4 is any one of aluminum sulfate, ferric chloride, ferrous sulfate, alum, sodium aluminate and ferric sulfate.
6. The method for treating cyanobacteria and green algae in water with synergistic effect according to claim 5, wherein the coagulant is alum.
7. The method for treating blue algae and green algae in water with synergistic effect according to claim 6, wherein the addition amount of the coagulant is 60-75 mg/L.
8. The method of claim 7, wherein the floating plants in the water in step S5 are selected from one or more of diatom, water lily, royal lotus, water chestnut, Xingxing vegetable, and Tian-shaped apple.
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Cited By (1)
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|---|---|---|---|---|
| CN114671546A (en) * | 2022-04-02 | 2022-06-28 | 中国科学院水生生物研究所 | Method for removing algae in water body by enhanced coagulation for eliminating algae-derived organic matter inhibition |
| CN114671546B (en) * | 2022-04-02 | 2023-11-03 | 中国科学院水生生物研究所 | Method for removing algae in water body by reinforced coagulation by eliminating inhibition of algae-derived organic matters |
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Application publication date: 20210615 |