CN111718025A - Coagulant aid for advanced wastewater treatment, preparation method thereof and advanced wastewater treatment method by membrane treatment - Google Patents
Coagulant aid for advanced wastewater treatment, preparation method thereof and advanced wastewater treatment method by membrane treatment Download PDFInfo
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- CN111718025A CN111718025A CN202010557555.1A CN202010557555A CN111718025A CN 111718025 A CN111718025 A CN 111718025A CN 202010557555 A CN202010557555 A CN 202010557555A CN 111718025 A CN111718025 A CN 111718025A
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/52—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
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/44—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis
- C02F1/444—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis by ultrafiltration or microfiltration
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/52—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
- C02F1/5245—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using inorganic agents using basic salts, e.g. of aluminium and iron
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/06—Contaminated groundwater or leachate
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Abstract
The invention discloses a coagulant aid for advanced wastewater treatment, a preparation method thereof and a method for advanced wastewater treatment by membrane treatment, wherein the coagulant aid comprises the following components in percentage by weight: an agent A: 2 to 20 percent of ferric salt, 0.5 to 10 percent of aluminum salt, 0.5 to 5 percent of polyaluminium, 0.1 to 2 percent of polyferric and the balance of water; and (2) agent B: 0.1 to 5 percent of persulfate and the balance of water; c, agent C: hypochlorite 0.1-20 wt% and water for the rest. The advanced wastewater treatment coagulant aid disclosed by the invention is applicable to wastewater with the pH range of 3-10, can be directly used without adjusting the pH of most wastewater, is wide in application range, and can be used for remarkably reducing pollutants such as organic matters, total phosphorus, chromaticity and the like of the wastewater.
Description
Technical Field
The invention relates to a coagulant aid for advanced wastewater treatment, a preparation method thereof and a method for advanced wastewater treatment by membrane treatment, belonging to the field of water treatment.
Background
With the implementation of ten water treatment methods, a water pollution prevention method and a new environment protection method, the discharge standard of wastewater treatment is gradually increased, the membrane treatment process technology is widely applied to various fields of wastewater advanced treatment, but the wastewater after membrane treatment also contains partial inorganic salts and organic matters which are difficult to biodegrade, has high chromaticity, and can be discharged after reaching the standard by further treatment.
At present, the advanced treatment of the ultrafiltration effluent mainly comprises an ozone oxidation technology, a Fenton oxidation technology, a photocatalysis technology or an ultrasonic oxidation technology. The ozone oxidation technology has the problems of low ozone utilization rate, high operation cost, insufficient oxidation capacity, low treatment effect and the like. The Fenton oxidation technology has the problems of low hydrogen peroxide utilization rate, high operation cost, large medicament dosage, large slag amount and the like. The photocatalytic technology or the ultrasonic oxidation technology is adopted alone, so that a good treatment effect is difficult to achieve. Under the trend of improving the discharge standard of water treatment, the search for new advanced treatment technology becomes the subject of urgent research.
Disclosure of Invention
In view of the above technical problems, a first object of the present invention is to provide a coagulant aid for advanced wastewater treatment, a second object of the present invention is to provide a method for preparing the coagulant aid, and a third object of the present invention is to provide a method for advanced wastewater treatment by membrane treatment, which can significantly reduce pollutants such as organic matters, total phosphorus, and chromaticity in wastewater.
In order to achieve the first object, the technical scheme of the invention is as follows: the coagulant aid for advanced wastewater treatment is characterized by comprising the following components in percentage by weight:
an agent A: 2 to 20 percent of ferric salt, 0.5 to 10 percent of aluminum salt, 0.5 to 5 percent of polyaluminium, 0.1 to 2 percent of polyferric and the balance of water;
and (2) agent B: 0.1 to 5 percent of persulfate and the balance of water;
c, agent C: hypochlorite 0.1-20 wt% and water for the rest.
In the scheme, the method comprises the following steps: the ferric salt is one or two of ferric trichloride and ferric sulfate.
In the scheme, the method comprises the following steps: the aluminum salt is one or more of aluminum sulfate, aluminum chloride and aluminum potassium sulfate dodecahydrate.
In the scheme, the method comprises the following steps: the polyaluminium is one or two of polyaluminium sulfate and polyaluminium chloride.
In the scheme, the method comprises the following steps: the polyferric is one or two of polyferric sulfate and polyferric chloride.
In the scheme, the method comprises the following steps: the persulfate is one or more of potassium persulfate, sodium persulfate, potassium hydrogen persulfate and sodium hydrogen persulfate.
In the scheme, the method comprises the following steps: the hypochlorite is one or more of sodium hypochlorite, calcium hypochlorite and potassium hypochlorite.
The second object of the present invention is achieved by: the preparation method of the coagulant aid for advanced wastewater treatment is characterized by comprising the following steps:
(1) weighing the components according to the mass respectively, and placing for later use;
(2) firstly, adding part of water of the agent A into a mixer, starting stirring at the stirring speed of 150-200r/min, sequentially and slowly adding weighed ferric salt, aluminum salt, polyaluminium and polyferric, wherein the material adding interval time is 5-10min, adding the rest of water after all the materials are added, and continuously stirring for 10-20min to ensure that the materials are fully mixed to obtain the agent A;
(3) firstly, adding part of water of the agent B into a mixer, starting stirring at the stirring speed of 150-200r/min, slowly adding the weighed persulfate, adding the rest of water, and continuously stirring for 10-20min to ensure that the materials are fully mixed to obtain the agent B;
(4) firstly, adding part of water of the agent C into a mixer, starting stirring at the stirring speed of 150-;
(5) and respectively sealing and subpackaging the agent A, the agent B and the agent C, and warehousing after inspection and qualification.
The third object of the present invention is achieved by: a method for advanced treatment of membrane treatment wastewater is characterized by comprising the following steps: controlling the pH value of the wastewater treated by the membrane to be 3-10, respectively adding the agent A, the agent B and the agent C into the wastewater in sequence, stirring and reacting for 1-10min after each agent is added, then adding the next agent, reacting for 20-60min after all the agents are added, and discharging after the pH value of the wastewater is adjusted to be 8.0.
In the scheme, the method comprises the following steps: the wastewater is the ultrafiltration effluent of kitchen waste fermentation wastewater or the ultrafiltration effluent of household garbage landfill leachate. The coagulant aid prepared by the invention has good treatment effect on the ultrafiltration effluent of the kitchen waste fermentation wastewater and the ultrafiltration effluent treatment of the domestic waste landfill leachate, and obviously reduces pollutants such as organic matters, total phosphorus, chromaticity and the like in the wastewater. The coagulant aid has wide pH range suitable for wastewater, strong adaptability to ultrafiltration effluent temperature and the like, improves the treatment effect of the coagulant, reduces the running cost, is simple to operate, and does not need additional equipment.
Has the advantages that: the advanced wastewater treatment coagulant aid disclosed by the invention is applicable to wastewater with the pH range of 3-10, can be directly used without adjusting the pH of most wastewater, is wide in application range, and can be used for remarkably reducing pollutants such as organic matters, total phosphorus, chromaticity and the like of the wastewater.
Detailed Description
The invention is further illustrated by the following examples:
examples 1
Coagulant aid, according to agent a: 2% of ferric trichloride, 5% of aluminum sulfate, 5% of polyaluminium chloride, 1% of polyferric sulfate and 87% of water.
And (2) agent B: 1% of potassium persulfate, 1% of sodium hydrogen persulfate and 98% of water.
C, agent C: sodium hypochlorite 2% and water 98%.
The preparation method comprises the following steps:
s1, weighing the components according to the mass respectively, and placing for later use;
s2, firstly adding 50% of water of the agent A into a mixer, starting stirring, and slowly adding the weighed ferric salt, aluminum salt, polyaluminium and polyferric at the stirring speed of 150-200r/min, wherein the adding interval time of the materials is 5min, after all the materials are added, adding the rest of water, and continuously stirring for 10-20min to ensure that the materials are fully mixed to obtain the agent A.
S3, firstly adding 50% of water of the B agent into a mixer, starting stirring at the stirring speed of 150-200r/min, slowly adding the weighed persulfate, then adding the rest of water, and continuously stirring for 10-20min to ensure that the materials are fully mixed to obtain the B agent.
S4, firstly adding 50% of water of the C agent into a mixer, starting stirring at the stirring speed of 150-.
And S5, sealing and subpackaging the agent A, the agent B and the agent C respectively, and warehousing after inspection and qualification.
Coagulant aid prepared in example 1 for treating various waste waters
The ultrafiltration effluent of the kitchen waste fermentation wastewater is taken from a certain kitchen waste treatment plant in Chongqing, the CODCr is 202mg/L, the chroma is 640 times, and the total phosphorus is 86 mg/L.
Putting 500mL of the solution into a beaker, starting stirring, simultaneously adding 5mL of the agent A, adding 8mL of the agent B after reacting for 1min, adding 10mL of the agent C after reacting for 1min, reacting for 30min after all the agents are added, adjusting the pH value of the wastewater to be 8.0, precipitating for 2h, and taking the supernatant to measure that the CODCr is 78mg/L, the chroma is 32 times, and the total phosphorus is 2.6 mg/L.
The ultrafiltration effluent of the domestic garbage landfill leachate is taken from a certain domestic garbage landfill leachate treatment plant in Chongqing, the CODCr is 315mg/L, the chroma is 800 times, and the total phosphorus is 76 mg/L.
Putting 500mL of the solution into a beaker, starting stirring, simultaneously adding 6mL of the agent A, adding 10mL of the agent B after reacting for 1min, adding 10mL of the agent C after reacting for 1min, reacting for 30min after all the agents are added, adjusting the pH value of the wastewater to be 8.0, taking supernatant after precipitating for 2h, and measuring the CODCr to be 85mg/L, the chroma to be 16 times and the total phosphorus to be 2.5 mg/L.
EXAMPLES example 2
Coagulant aid, according to agent a: 5% of ferric sulfate, 5% of ferric chloride, 0.5% of aluminum chloride, 2.0% of polyaluminum sulfate, 0.5% of polyferric chloride and 87% of water.
And (2) agent B: 2% of sodium persulfate, 1% of potassium hydrogen persulfate and 97% of water.
C, agent C: 8% of sodium hypochlorite, 2% of potassium hypochlorite and 90% of water.
The preparation method comprises the following steps:
s1, weighing the components according to the mass respectively, and placing for later use.
S2, firstly adding 50% of water of the agent A into a mixer, starting stirring, and slowly adding the weighed ferric salt, aluminum salt, polyaluminium and polyferric at the stirring speed of 150-200r/min, wherein the adding interval time of the materials is 10min, after all the materials are added, adding the rest of water, and continuously stirring for 10-20min to ensure that the materials are fully mixed to obtain the agent A.
S3, firstly adding 50% of water of the B agent into a mixer, starting stirring at the stirring speed of 150-200r/min, slowly adding the weighed persulfate, then adding the rest of water, and continuously stirring for 10-20min to ensure that the materials are fully mixed to obtain the B agent.
S4, firstly adding 50% of water of the C agent into a mixer, starting stirring at the stirring speed of 150-.
And S5, sealing and subpackaging the agent A, the agent B and the agent C respectively, and warehousing after inspection and qualification.
Coagulant aid of example 2 treatment of various wastewaters
The ultrafiltration effluent of the kitchen waste fermentation wastewater is taken from a certain kitchen waste treatment plant in Chongqing, the CODCr is 202mg/L, the chroma is 640 times, and the total phosphorus is 86 mg/L.
Putting 500mL of the solution into a beaker, starting stirring, simultaneously adding 2mL of the agent A, adding 5mL of the agent B after reacting for 10min, adding 5mL of the agent C after reacting for 10min, reacting for 20min after all the agents are added, adjusting the pH value of the wastewater to be 8.0, taking supernatant after precipitating for 2h, and measuring the CODCr to be 85mg/L, the chroma to be 16 times and the total phosphorus to be 2.0 mg/L.
The ultrafiltration effluent of the domestic garbage landfill leachate is taken from a certain domestic garbage landfill leachate treatment plant in Chongqing, the CODCr is 315mg/L, the chroma is 800 times, and the total phosphorus is 76 mg/L.
Putting 500mL of the solution into a beaker, starting stirring, simultaneously adding 3mL of the agent A, adding 6mL of the agent B after reacting for 2min, adding 7mL of the agent C after reacting for 2min, reacting for 60min after all the agents are added, adjusting the pH value of the wastewater to be 8.0, taking supernatant after precipitating for 2h, and measuring the CODCr to be 92mg/L, the chroma to be 32 times and the total phosphorus to be 1.8 mg/L.
EXAMPLE 3
Coagulant aid, according to agent a: 20% of ferric trichloride, 10% of aluminum sulfate dodecahydrate, 0.5% of polyaluminum chloride, 2% of polymeric ferric sulfate and 67.5% of water.
And (2) agent B: 2% of potassium persulfate, 1% of sodium persulfate, 2% of potassium hydrogen persulfate and 95% of water.
C, agent C: 15% of sodium hypochlorite, 5% of calcium hypochlorite and 80% of water.
The preparation method comprises the following steps:
s1, weighing the components according to the mass respectively, and placing for later use.
S2, firstly adding 50% of water of the agent A into a mixer, starting stirring, and slowly adding the weighed ferric salt, aluminum salt, polyaluminium and polyferric at the stirring speed of 150-200r/min, wherein the adding interval time of the materials is 8min, after all the materials are added, adding the rest of water, and continuously stirring for 10-20min to ensure that the materials are fully mixed to obtain the agent A.
S3, firstly adding 50% of water of the B agent into a mixer, starting stirring at the stirring speed of 150-200r/min, slowly adding the weighed persulfate, then adding the rest of water, and continuously stirring for 10-20min to ensure that the materials are fully mixed to obtain the B agent.
S4, firstly adding 50% of water of the C agent into a mixer, starting stirring at the stirring speed of 150-.
And S5, sealing and subpackaging the agent A, the agent B and the agent C respectively, and warehousing after inspection and qualification.
Example 3 coagulant aid prepared for treating wastewater
The ultrafiltration effluent of the kitchen waste fermentation wastewater is taken from a certain kitchen waste treatment plant in Chongqing, the CODCr is 202mg/L, the chroma is 640 times, and the total phosphorus is 86 mg/L.
Putting 500mL of the solution into a beaker, starting stirring, adding 4mL of the agent A at the same time, adding 3mL of the agent B after reacting for 1min, adding 3mL of the agent C after reacting for 1min, reacting for 30min after all the agents are added, adjusting the pH value of the wastewater to be 8.0, taking supernatant after precipitating for 2h, and measuring that the CODCr is 73mg/L, the chroma is 16 times and the total phosphorus is 1.5 mg/L.
The ultrafiltration effluent of the domestic garbage landfill leachate is taken from a certain domestic garbage landfill leachate treatment plant in Chongqing, the CODCr is 315mg/L, the chroma is 800 times, and the total phosphorus is 76 mg/L. Putting 500mL of the solution into a beaker, starting stirring, simultaneously adding 5mL of the agent A, adding 3.5mL of the agent B after reacting for 1min, adding 4mL of the agent C after reacting for 1min, reacting for 30min after all the agents are added, adjusting the pH value of the wastewater to be 8.0, taking supernatant after precipitating for 2h, and measuring that the CODCr is 86mg/L, the chroma is 16 times, and the total phosphorus is 2.0 mg/L.
Example 4
Coagulant aid, according to agent a: 15% of ferric trichloride, 8% of aluminum sulfate dodecahydrate, 4% of polyaluminium chloride, 0.1% of polyferric sulfate and 72.9% of water.
And (2) agent B: 0.1 percent of potassium persulfate and the balance of water.
C, agent C: 0.1% of sodium hypochlorite and the balance of water.
The preparation method comprises the following steps:
s1, weighing the components according to the mass respectively, and placing for later use.
S2, firstly adding 50% of water of the agent A into a mixer, starting stirring, and slowly adding the weighed ferric salt, aluminum salt, polyaluminium and polyferric at the stirring speed of 150-200r/min, wherein the adding interval time of the materials is 5min, after all the materials are added, adding the rest of water, and continuously stirring for 10-20min to ensure that the materials are fully mixed to obtain the agent A.
S3, firstly adding 50% of water of the B agent into a mixer, starting stirring at the stirring speed of 150-200r/min, slowly adding the weighed persulfate, then adding the rest of water, and continuously stirring for 10-20min to ensure that the materials are fully mixed to obtain the B agent.
S4, firstly adding 50% of water of the C agent into a mixer, starting stirring at the stirring speed of 150-.
And S5, sealing and subpackaging the agent A, the agent B and the agent C respectively, and warehousing after inspection and qualification.
Example 4 the coagulant aid prepared was used to treat wastewater
The ultrafiltration effluent of the kitchen waste fermentation wastewater is taken from a certain kitchen waste treatment plant in Chongqing, the CODCr is 202mg/L, the chroma is 640 times, and the total phosphorus is 86 mg/L.
Putting 500mL of the solution into a beaker, starting stirring, adding 4mL of the agent A at the same time, adding 3mL of the agent B after reacting for 1min, adding 3mL of the agent C after reacting for 1min, reacting for 30min after all the agents are added, adjusting the pH value of the wastewater to be 8.0, precipitating for 2h, and taking the supernatant to measure that the CODCr is 71mg/L, the chroma is 25 times, and the total phosphorus is 1.6 mg/L.
The ultrafiltration effluent of the domestic garbage landfill leachate is taken from a certain domestic garbage landfill leachate treatment plant in Chongqing, the CODCr is 315mg/L, the chroma is 800 times, and the total phosphorus is 76 mg/L. Putting 500mL of the solution into a beaker, starting stirring, simultaneously adding 5mL of the agent A, adding 3.5mL of the agent B after reacting for 1min, adding 4mL of the agent C after reacting for 1min, reacting for 30min after all the agents are added, adjusting the pH value of the wastewater to be 8.0, taking supernatant after precipitating for 2h, and measuring that the CODCr is 84mg/L, the chroma is 17 times, and the total phosphorus is 2.85 mg/L.
The present invention is not limited to the above-described embodiments, and those skilled in the art will understand that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.
Claims (10)
1. The coagulant aid for advanced wastewater treatment is characterized by comprising the following components in percentage by weight:
an agent A: 2 to 20 percent of ferric salt, 0.5 to 10 percent of aluminum salt, 0.5 to 5 percent of polyaluminium, 0.1 to 2 percent of polyferric and the balance of water;
and (2) agent B: 0.1 to 5 percent of persulfate and the balance of water;
c, agent C: hypochlorite 0.1-20 wt% and water for the rest.
2. The advanced wastewater treatment coagulant aid according to claim 1, wherein: the ferric salt is one or two of ferric trichloride and ferric sulfate.
3. The advanced wastewater treatment coagulant aid according to claim 1, wherein: the aluminum salt is one or more of aluminum sulfate, aluminum chloride and aluminum potassium sulfate dodecahydrate.
4. The advanced wastewater treatment coagulant aid according to claim 1, wherein: the polyaluminium is one or two of polyaluminium sulfate and polyaluminium chloride.
5. The advanced wastewater treatment coagulant aid according to claim 1, wherein: the polyferric is one or two of polyferric sulfate and polyferric chloride.
6. The advanced wastewater treatment coagulant aid according to any one of claims 1 to 5, wherein: the persulfate is one or more of potassium persulfate, sodium persulfate, potassium hydrogen persulfate and sodium hydrogen persulfate.
7. The advanced wastewater treatment coagulant aid according to claim 6, wherein: the hypochlorite is one or more of sodium hypochlorite, calcium hypochlorite and potassium hypochlorite.
8. A method for preparing the coagulant aid for the advanced treatment of wastewater as defined in any one of claims 1 to 7, which comprises the following steps:
(1) weighing the components according to the mass respectively, and placing for later use;
(2) firstly, adding part of water of the agent A into a mixer, starting stirring at the stirring speed of 150-200r/min, sequentially and slowly adding weighed ferric salt, aluminum salt, polyaluminium and polyferric, wherein the material adding interval time is 5-10min, adding the rest of water after all the materials are added, and continuously stirring for 10-20min to ensure that the materials are fully mixed to obtain the agent A;
(3) firstly, adding part of water of the agent B into a mixer, starting stirring at the stirring speed of 150-200r/min, slowly adding the weighed persulfate, adding the rest of water, and continuously stirring for 10-20min to ensure that the materials are fully mixed to obtain the agent B;
(4) firstly, adding part of water of the agent C into a mixer, starting stirring at the stirring speed of 150-;
(5) and respectively sealing and subpackaging the agent A, the agent B and the agent C, and warehousing after inspection and qualification.
9. A method for advanced treatment of membrane treatment wastewater is characterized by comprising the following steps: controlling the pH value of the wastewater treated by the membrane to be 3-10, respectively adding the agent A, the agent B and the agent C into the wastewater in sequence, stirring and reacting for 1-10min after each agent is added, then adding the next agent, reacting for 20-60min after all the agents are added, and discharging after the pH value of the wastewater is adjusted to be 8.0.
10. The method for advanced treatment of membrane treatment wastewater according to claim 9, characterized in that: the wastewater is the ultrafiltration effluent of kitchen waste fermentation wastewater or the ultrafiltration effluent of household garbage landfill leachate.
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102050533A (en) * | 2009-10-29 | 2011-05-11 | 中国石油化工股份有限公司 | Method for treating and recycling circulating water and sewage |
| CN103241813A (en) * | 2012-02-02 | 2013-08-14 | 安徽赛科环保科技有限公司 | Preparation method for oxide composite flocculant |
| CN103253836A (en) * | 2013-06-07 | 2013-08-21 | 光大环保科技发展（北京）有限公司 | Deep purification and treatment device and method of landfill leachate |
| WO2015062881A1 (en) * | 2013-11-01 | 2015-05-07 | Unilever N.V. | Composition for purification of water |
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- 2020-06-16 CN CN202010557555.1A patent/CN111718025A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102050533A (en) * | 2009-10-29 | 2011-05-11 | 中国石油化工股份有限公司 | Method for treating and recycling circulating water and sewage |
| CN103241813A (en) * | 2012-02-02 | 2013-08-14 | 安徽赛科环保科技有限公司 | Preparation method for oxide composite flocculant |
| CN103253836A (en) * | 2013-06-07 | 2013-08-21 | 光大环保科技发展（北京）有限公司 | Deep purification and treatment device and method of landfill leachate |
| WO2015062881A1 (en) * | 2013-11-01 | 2015-05-07 | Unilever N.V. | Composition for purification of water |
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