CN107628680B - Water purifying agent for wastewater treatment and production method and use method thereof - Google Patents
Water purifying agent for wastewater treatment and production method and use method thereof Download PDFInfo
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Abstract
The invention discloses a water purifying agent for wastewater treatment, a production method and a use method thereof, belonging to the field of wastewater treatment. The flocculating agent comprises aluminum carbonate complex calcium silicate, zeolite powder, perlite powder and graphite thousand rock powder; the production method comprises the following steps: pulverizing the raw materials to below 60 mesh, mixing zeolite powder and perlite powder to obtain A, mixing graphite rock powder and A to obtain B, and mixing aluminum carbonate complex calcium silicate and B; the using method comprises the following steps: the water purifying agent is added into the wastewater to be fully stirred and mixed, and precipitate and supernatant are separated, wherein the adding amount of the water purifying agent is 0.1-0.3 percent of the amount of the wastewater. The water purifying agent overcomes the defects of high sewage treatment cost and poor purification effect in the prior art, can perform efficient flocculation treatment on high-pollution wastewater which is difficult to degrade by various microorganisms, has low manufacturing cost, can perform secondary utilization treatment on precipitates, and does not generate secondary pollution.
Description
Technical Field
The invention relates to the technical field of sewage treatment, in particular to a water purifying agent for wastewater treatment, a production method and a use method thereof.
Background
How to effectively purify and treat sewage and wastewater is a goal pursued in the industry all the time, and particularly, along with the rapid development of the Chinese breeding industry in recent years, the highly polluted livestock and poultry breeding sewage cannot be effectively treated, so that large-area pollution to soil around a breeding farm and natural water areas is caused, and the safety of local underground water is seriously influenced. How to carry out high-efficiency and low-cost purification treatment on high-pollution wastewater such as breeding and the like is the key point of research in the industry, and in view of the fact that pig raising and chicken raising and cattle raising industries are basically located in mountainous areas, suburban areas and other areas without basic sewage collection facilities, a sewage purification technology which is small in investment, fast in effect, capable of achieving the livestock and poultry breeding drainage standard of the ministry of environmental protection and free of secondary pollution is urgently needed.
Coagulation treatment is one of the key links in the current sewage treatment, can remove turbidity and dirt and reduce the pollution load of the subsequent sewage treatment, and a water purifying agent (flocculating agent) is a key factor for determining the coagulation treatment effect and has important influence on the running condition of the subsequent flow, the quality of final effluent, the cost and the like. Although a large number of flocculant products with different types exist in the market at present, the flocculant products have different using effects, and are still very lack of efficient, cheap and secondary pollution-free flocculant products.
Through search, a great number of patents have been published on the research of the flocculant, such as Chinese patent application No.: 2015104467421, filing date: 7, 23 months 2015, the name of the invention creation is: the application discloses a flocculant for a stevioside impurity removal process, which comprises the following raw materials in parts by weight: 10-20 parts of modified chitosan, 15-25 parts of modified lignin, 30-40 parts of polymeric ferric sulfate, 25-35 parts of aluminum citrate, 10-15 parts of magnesium sulfate, 20-30 parts of ferric polysilicate, 3-5 parts of porous perlite powder and 4-6 parts of zeolite powder; the application has the advantages that the flocculation reaction is fast, and the floccules are large in particle size and easy to separate; but the application is more suitable for removing impurities from stevioside and is not suitable for treating high-pollution wastewater such as livestock and poultry.
Disclosure of Invention
1. Technical problem to be solved by the invention
The invention aims to overcome the defects of higher sewage treatment cost and poor purification effect in the prior art, and provides a water purifying agent for wastewater treatment and a production method and a using method thereof.
2. Technical scheme
In order to achieve the purpose, the technical scheme provided by the invention is as follows:
the invention relates to a water purifying agent for wastewater treatment, which comprises aluminum carbonate complex calcium silicate and graphite rock powder.
Further, zeolite powder and perlite powder are also included.
Furthermore, the components comprise the following components in parts by mass:
aluminum carbonate-based complex calcium silicate: 50-70 parts of
Zeolite powder: 10-20 parts of
Perlite powder: 15-25 parts of
Graphite thousand rock powder: 5-10 parts.
The invention relates to a production method of a water purifying agent for wastewater treatment, which adds aluminum carbonate complex calcium silicate and graphite rock powder into raw materials.
Further, the method specifically comprises the following steps:
the method comprises the following steps: respectively crushing raw materials of aluminum carbonate complex calcium silicate, zeolite powder, perlite powder and graphite phyllite powder to be not more than 60 meshes;
step two, uniformly mixing and stirring 10-20 parts by mass of zeolite powder and 15-25 parts by mass of perlite powder to obtain a mixture A;
step three, uniformly mixing 5-10 parts by mass of graphite thousand rock powder and the mixture A, and stirring to obtain a mixture B;
and step four, uniformly mixing 50-70 parts by mass of the aluminum carbonate complex calcium silicate and the mixture B and stirring to obtain the calcium carbonate complex calcium silicate.
Further, in the first step, the raw material components are respectively crushed to 60 meshes.
Further, the mixing and stirring time is not less than 10min, and the mixing and stirring speed is not less than 60 n/min.
Further, the temperature of each mixing and stirring is above 25 ℃.
Further, the stirring humidity is below 30% in each mixing.
The invention relates to a method for using a water purifying agent for wastewater treatment, which comprises the steps of adding the water purifying agent for wastewater treatment into wastewater, fully stirring and mixing the wastewater, and separating out precipitate and supernatant, wherein the adding amount of the water purifying agent is 0.1-0.3% of the amount of the wastewater.
3. Advantageous effects
Compared with the prior art, the technical scheme provided by the invention has the following remarkable effects:
(1) the water purifier for treating waste water comprises aluminum carbonate complex calcium silicate, graphite rock powder, zeolite powder and perlite powder, various natural rock powder and mineral combination are matched, acid and alkali resistance is outstanding, strong adsorption and flocculation effects are achieved after repeated engineering verification, and coagulated precipitates can be directly used as solid fertilizers after dehydration or used after composting, so that full-cycle waste utilization is realized, and secondary pollution is avoided.
(2) The added aluminum carbonate complex calcium silicate has strong capacity of adsorbing COD component, phosphorus component, suspended matter component and metal component and storing the components in gaps and crystal structures of the natural rock powder, has strong nucleation effect, can quickly capture pollutants in water and coagulate and settle the pollutants, and ensures the efficient flocculation efficiency of the water purifying agent.
(3) The water purifying agent for wastewater treatment has strong capacity of adsorbing ammonia nitrogen components by matching with the added graphite phyllite powder, can effectively adsorb fine powder particles in water, combines high-efficiency adsorption and precipitation of zeolite powder and perlite powder on coarse powder particles in water, and can quickly adsorb and remove main pollutants in livestock and poultry sewage by virtue of mutual synergy of the components, so that BOD and COD of polluted water are remarkably improved.
(4) Compared with the conventional aluminum-series agglomerant or iron-series agglomerant, the agglomeration speed of the water purifier for wastewater treatment is greatly increased, the conventional aluminum-series agglomerant or iron-series agglomerant can be separated within 5-20min, and the agglomeration speed of the water purifier after addition is extremely high, and the polymer and treated water can be separated within 1-2 min.
(5) Compared with the conventional high-molecular coagulant, the water purifier for treating the wastewater of the invention does not use sulfuric acid and caustic soda, only needs 1 procedure when in use, and needs 2 to 4 procedures compared with the conventional high-molecular coagulant, the equipment and the cost are obviously reduced, the water purifier can improve the water quality of suspended solid substances, COD, hexane and the like, and the separated sludge is hydrophobic and easy to dewater, thereby being convenient to treat.
(6) According to the application method of the water purifying agent for wastewater treatment, the adding amount of the water purifying agent is only 0.1-0.3% of the amount of wastewater, the using amount is greatly reduced, only a simple water purifying agent feeding and mixing device is needed during use, a sewage treatment facility is not needed, the production cost is effectively reduced, the operation is simple, and the application is wide.
Drawings
FIG. 1 is a schematic flow chart showing a process for producing a water purifying agent for wastewater treatment according to the present invention.
Detailed Description
For a further understanding of the invention, reference should be made to the following detailed description taken in conjunction with the accompanying drawings.
The invention relates to a water purifying agent for wastewater treatment, which comprises aluminum carbonate complex calcium silicate, graphite rock powder, zeolite powder and perlite powder, and the water purifying agent comprises the following components in parts by mass:
aluminum carbonate-based complex calcium silicate: 50-70 parts of
Zeolite powder: 10-20 parts of
Perlite powder: 15-25 parts of
Graphite thousand rock powder: 5-10 parts.
The aluminum carbonate composite calcium silicate comprises a plurality of composite natural rock powders of hydrous aluminosilicate and aluminum carbonate, and can be processed by special natural volcanic ash containing zeolite, quartz, dolomite and the like, which is not described in detail; in addition, the mass part ratio of the aluminum carbonate complex calcium silicate to the graphite thousand rock powder is controlled to be (6-12): 1, the mass part content of the graphite thousand pieces of rock powder is 30-60% of the mass part of the zeolite powder, and the mass part ratio of the perlite powder to the zeolite powder is controlled to be (0.8-1.5): 1.
the water purifying agent disclosed by the invention utilizes combination of various natural rock powders and minerals to be matched, the acid and alkali resistance is relatively outstanding, and the water purifying agent has extremely strong adsorption and flocculation effects after repeated engineering verification, the added aluminum carbonate complex calcium silicate has strong capacity of adsorbing COD (chemical oxygen demand) components, phosphorus components, suspended matter components and metal components and storing the COD components, the phosphorus components, the suspended matter components and the metal components in gaps and crystal structures of the natural rock powders, and the aluminum carbonate complex calcium silicate has a strong nucleation effect and can quickly capture pollutants in water and condense and settle the pollutants; the added graphite phyllite powder has strong capacity of adsorbing ammonia nitrogen components, particularly can effectively adsorb fine powder particles in water, combines efficient adsorption and precipitation of zeolite powder and perlite powder on coarse powder particles in water, and can quickly adsorb and remove main pollutants (such as COD (chemical oxygen demand) components, ammonia nitrogen, total phosphorus, suspended matters, K, Cu, Zn metals and the like) in livestock and poultry sewage by combining the mutual synergy of the components, so that the BOD and the COD of the polluted water are obviously improved, 99 percent of sludge can be subjected to precipitation treatment, the reaction speed is extremely high, floccules are large, the dehydration property is good, and meanwhile, the water purifying agent is neutral, the pH value of the treated water does not need to be adjusted, and the application is more convenient; and secondly, the water purifying agent does not need auxiliary agents, is safe and efficient to use, also has bleaching and deodorizing effects, and can be directly used as solid fertilizer or composted after the condensed precipitate is dehydrated, so that full-cycle waste utilization is realized, and secondary pollution is not generated.
It should be noted that repeated engineering practice verifies that the water purifying agent has outstanding purification treatment effect on various high-pollution wastewater such as industrial wastewater, muddy slurry water in the field of civil engineering, lake and pond (blue-green algae) wastewater, colony house sludge water, livestock and poultry breeding wastewater and the like, compared with the conventional aluminum-series agglutinant (PAC) or iron-series agglutinant, the agglutination speed of the water purifying agent is greatly improved, the conventional aluminum-series agglutinant (PAC) or iron-series agglutinant can be separated within 5-20min, and the agglutination speed of the water purifying agent after being added is extremely high, and the polymer and the treated water can be separated only within 1-2 min; secondly, the conventional coagulant must maintain a proper pH value, and the acid and alkali resistance of the water purifying agent is compatible; thirdly, the water purifying agent is synthesized by JIS standard-reaching raw materials and natural minerals, is a harmless coagulant, and the treated water retains a plurality of minerals, has good influence on the environment and is beneficial to increase the growth of aquatic animal and plant groups, fishes and plankton; compared with the conventional high-molecular coagulant, the water purifier does not use sulfuric acid and caustic soda, only needs 1 procedure when in use, obviously reduces the using equipment and cost compared with the conventional high-molecular coagulant which needs 2 to 4 procedures, can improve the water quality of suspended solid substances, COD, hexane and the like, and can separate sludge with hydrophobicity and easy dehydration, thereby being convenient for treatment.
The present invention will be further described with reference to the following examples.
Example 1
The water purifying agent for wastewater treatment comprises aluminum carbonate complex calcium silicate and graphite rock powder, and also comprises zeolite powder and perlite powder, and the water purifying agent comprises the following components in parts by mass:
aluminum carbonate-based complex calcium silicate: 50 portions of
Zeolite powder: 10 portions of
Perlite powder: 15 portions of
Graphite thousand rock powder: 5 parts of the raw materials.
In this embodiment, the mass part ratio of the aluminum carbonate-based composite calcium silicate to the graphite thousand rock powder is controlled to be 10: 1, the mass part content of the graphite thousand pieces of rock powder is 50 percent of the mass part of the zeolite powder, and the mass part ratio of the perlite powder to the zeolite powder is 1.5: 1.
the production method of the water purifying agent for wastewater treatment in the embodiment adds the aluminum carbonate complex calcium silicate and the graphite thousand rock powder into the raw materials, and specifically comprises the following steps:
the method comprises the following steps: respectively crushing raw materials of aluminum carbonate complex calcium silicate, zeolite powder, perlite powder and graphite phyllite powder to 60 meshes; the aluminum carbonate complex calcium silicate has a remarkable nucleating effect when the granularity is 60 meshes, and can quickly capture pollutants in water and condense and settle the pollutants;
step two, uniformly mixing and stirring 10 parts by mass of zeolite powder and 15 parts by mass of perlite powder to obtain a mixture A;
step three, uniformly mixing 5 parts by mass of graphite thousand rock powder and the mixture A, and stirring to obtain a mixture B;
and step four, uniformly mixing 50 parts by mass of the aluminum carbonate complex calcium silicate and the mixture B, stirring to obtain the stable mixture, and storing the stable mixture in an environment with the temperature below 5 ℃.
In the steps, the mixing and stirring time is not less than 10min each time, the mixing and stirring speed is not less than 60n/min each time, the mixing and stirring temperature is more than 25 ℃ each time, and the mixing and stirring humidity is less than 30%, the characteristics of each component can be fully exerted by strictly controlling the mixing sequence and the mixing process parameters, and the finished water purifying agent can be effectively exerted finally.
The application method of the water purifying agent for wastewater treatment only needs a simple water purifying agent feeding and mixing device, does not need a sewage treatment facility, and is wide in application, the feeding amount of the water purifying agent is only 0.1% of the amount of wastewater, when the water purifying agent is used specifically, according to the fact that a dry powder feeding device can be adopted, the water purifying agent and the sewage to be treated are simultaneously fed into a pipeline mixer to be fully stirred and mixed, then precipitate and supernatant are separated, the supernatant is directly fed into the wastewater discharge standard of environmental protection, the precipitate enters a precipitation concentration tank, the water content is controlled to be below 50% through filter pressing after natural precipitation and dehydration, most of sludge generated during treatment of breeding sewage is nutrient components in excrement, the sludge can be directly mixed with other dry excrement to carry out composting utilization or serve as building materials for manufacturing tiles and the like, and full cyclic utilization is realized without secondary pollution.
The following is described with reference to specific examples:
case 1: the pig raising wastewater treatment of the experimental base of double-river Jiufeng mountain of animal husbandry academy of sciences of Chongqing city is to set a circulating stirring pump in a biogas slurry storage pool aiming at biogas slurry generated by biogas fermentation of pig manure, directly and continuously put the water purifying agent powder of the embodiment, and fully stir for 1 minute; the adding amount of the water purifying agent is 0.21 percent of the treated water amount. The biogas slurry detection value before treatment is as follows: 1930ppm COD, 375ppm ammonia nitrogen, 460ppm total nitrogen and 118ppm total phosphorus; after treatment, COD component, SS component, total phosphorus component and heavy metal ions in the sewage are obviously reduced, the treatment result directly reaches the livestock and poultry breeding sewage discharge standard GB18596-2001 of the department of environmental protection, and the measured value is as follows: COD310ppm, ammonia nitrogen 47ppm, total nitrogen 65ppm, total phosphorus 2.7ppm, chroma 50.
Case 2: in Chongqing Dairy cow farm biogas slurry wastewater from two rivers in certain dairy industry, indexes such as COD (2130ppm), ammonia nitrogen (430ppm), total nitrogen (530 ppm), total phosphorus (166ppm) and the like of the biogas slurry still seriously exceed standards, the existing biochemical treatment process is difficult to reach the standard, and the biogas slurry is regulated and improved by the local environmental protection agency for many times; the raw liquid is taken from the biogas slurry pool, the water purifying agent aqueous solution is used, and a micro-nano aerator is matched for stirring circulation, so that COD is reduced to below 300ppm, ammonia nitrogen is reduced to below 60ppm, total nitrogen is reduced to below 80ppm, and total phosphorus is reduced to below 2.0ppm within 2 minutes of reaction.
Example 2
Basically the same as example 1, except that the water purifying agent for wastewater treatment of the present embodiment includes aluminum carbonate complex calcium silicate and graphite thousand rock powder, and also includes zeolite powder and perlite powder, and each component is composed of the following components in parts by mass:
aluminum carbonate-based complex calcium silicate: 70 portions of
Zeolite powder: 20 portions of
Perlite powder: 25 portions of
Graphite thousand rock powder: 10 parts.
In this embodiment, the mass part ratio of the aluminum carbonate-based composite calcium silicate to the graphite thousand rock powder is controlled to be 7: 1, the mass part content of the graphite thousand pieces of rock powder is 50 percent of the mass part of the zeolite powder, and the mass part ratio of the perlite powder to the zeolite powder is 1.25: 1.
the production method of the water purifying agent for wastewater treatment in the embodiment adds the aluminum carbonate complex calcium silicate and the graphite thousand rock powder into the raw materials, and specifically comprises the following steps:
the method comprises the following steps: respectively pulverizing raw materials of aluminum carbonate complex calcium silicate, zeolite powder, perlite powder and graphite phyllite powder to below 60 meshes;
step two, uniformly mixing and stirring 20 parts by mass of zeolite powder and 25 parts by mass of perlite powder to obtain a mixture A;
step three, uniformly mixing 10 parts by mass of graphite thousand rock powder with the mixture A and stirring to obtain a mixture B;
and step four, uniformly mixing and stirring 70 parts by mass of the mixture of the aluminum carbonate complex calcium silicate and the B.
In the method for using the water purifying agent for wastewater treatment in the embodiment, the adding amount of the water purifying agent is only 0.2% of the amount of the wastewater.
Example 3
Basically the same as example 1, except that the water purifying agent for wastewater treatment of the present embodiment includes aluminum carbonate complex calcium silicate and graphite thousand rock powder, and also includes zeolite powder and perlite powder, and each component is composed of the following components in parts by mass:
aluminum carbonate-based complex calcium silicate: 60 portions of
Zeolite powder: 16 portions of
Perlite powder: 20 portions of
Graphite thousand rock powder: 7 parts.
In this embodiment, the mass part ratio of the aluminum carbonate-based composite calcium silicate to the graphite thousand rock powder is controlled to be 8.6: 1, the mass part content of the graphite thousand pieces of rock powder is 47 percent of that of the zeolite powder, and the mass part ratio of the perlite powder to the zeolite powder is 0.8: 1.
the production method of the water purifying agent for wastewater treatment in the embodiment adds the aluminum carbonate complex calcium silicate and the graphite thousand rock powder into the raw materials, and specifically comprises the following steps:
the method comprises the following steps: respectively pulverizing raw materials of aluminum carbonate complex calcium silicate, zeolite powder, perlite powder and graphite phyllite powder to below 60 meshes;
step two, uniformly mixing and stirring 16 parts by mass of zeolite powder and 20 parts by mass of perlite powder to obtain a mixture A;
step three, uniformly mixing and stirring 7 parts by mass of graphite thousand rock powder and the mixture A to obtain a mixture B;
step four, 60 parts by mass of the mixture of the aluminum carbonate complex calcium silicate and the B is uniformly mixed and stirred to obtain the calcium silicate powder,
in the method for using the water purifying agent for wastewater treatment in the embodiment, the adding amount of the water purifying agent is only 0.3% of the amount of the wastewater.
Example 4
Basically the same as example 1, except that the water purifying agent for wastewater treatment of the present embodiment includes aluminum carbonate complex calcium silicate and graphite thousand rock powder, and also includes zeolite powder and perlite powder, and each component is composed of the following components in parts by mass:
aluminum carbonate-based complex calcium silicate: 60 portions of
Zeolite powder: 17 portions of
Perlite powder: 15 portions of
Graphite thousand rock powder: 10 parts.
In this embodiment, the mass part ratio of the aluminum carbonate-based composite calcium silicate to the graphite thousand rock powder is controlled to be 6: 1, the mass part content of the graphite thousand pieces of rock powder is 60 percent of the mass part of the zeolite powder, and the mass part ratio of the perlite powder to the zeolite powder is 1.1: 1.
example 5
Basically the same as example 1, except that the water purifying agent for wastewater treatment of the present embodiment includes aluminum carbonate complex calcium silicate and graphite thousand rock powder, and also includes zeolite powder and perlite powder, and each component is composed of the following components in parts by mass:
aluminum carbonate-based complex calcium silicate: 59 portions of
Zeolite powder: 18 portions of
Perlite powder: 22 portions of
Graphite thousand rock powder: 5.4 parts.
In this embodiment, the mass part ratio of the aluminum carbonate-based composite calcium silicate to the graphite thousand rock powder is controlled to be 11: 1, the mass part content of the graphite thousand pieces of rock powder is 30 percent of that of the zeolite powder, and the mass part ratio of the perlite powder to the zeolite powder is 1.2: 1.
example 6
Basically the same as example 1, except that the water purifying agent for wastewater treatment of the present embodiment includes aluminum carbonate complex calcium silicate and graphite thousand rock powder, and also includes zeolite powder and perlite powder, and each component is composed of the following components in parts by mass:
aluminum carbonate-based complex calcium silicate: 60 portions of
Zeolite powder: 10 portions of
Perlite powder: 15 portions of
Graphite thousand rock powder: 5 parts of the raw materials.
In this embodiment, the mass part ratio of the aluminum carbonate-based composite calcium silicate to the graphite thousand rock powder is controlled to be 12: 1, the mass part content of the graphite thousand pieces of rock powder is 50 percent of the mass part of the zeolite powder, and the mass part ratio of the perlite powder to the zeolite powder is 1.5: 1.
the present invention and its embodiments have been described above schematically, without limitation, and what is shown in the drawings is only one of the embodiments of the present invention, and the actual structure is not limited thereto. Therefore, if the person skilled in the art receives the teaching, without departing from the spirit of the invention, the person skilled in the art shall not inventively design the similar structural modes and embodiments to the technical solution, but shall fall within the scope of the invention.
Claims (7)
1. A water purifying agent for wastewater treatment is characterized in that: comprises aluminum carbonate complex calcium silicate and graphite rock powder, and also comprises zeolite powder and perlite powder;
the composition comprises the following components in parts by mass:
aluminum carbonate-based complex calcium silicate: 50-70 parts of
Zeolite powder: 10-20 parts of
Perlite powder: 15-25 parts of
Graphite thousand rock powder: 5-10 parts;
and the mass part ratio of the aluminum carbonate complex calcium silicate to the graphite thousand rock powder is controlled to be (6-12): 1, the mass part content of the graphite thousand pieces of rock powder is 30-60% of the mass part of the zeolite powder, and the mass part ratio of the perlite powder to the zeolite powder is controlled to be (0.8-1.5): 1; the aluminum carbonate-based composite calcium silicate includes a composite natural rock powder of hydrous aluminosilicate and an aluminum carbonate salt; is prepared from natural volcanic ash containing zeolite, quartz and dolomite through processing.
2. A method for producing the water purifying agent for wastewater treatment as set forth in claim 1, characterized in that:
the method specifically comprises the following steps:
the method comprises the following steps: respectively crushing raw materials of aluminum carbonate complex calcium silicate, zeolite powder, perlite powder and graphite phyllite powder to be not more than 60 meshes;
step two, uniformly mixing and stirring 10-20 parts by mass of zeolite powder and 15-25 parts by mass of perlite powder to obtain a mixture A;
step three, uniformly mixing 5-10 parts by mass of graphite thousand rock powder and the mixture A, and stirring to obtain a mixture B;
and step four, uniformly mixing 50-70 parts by mass of the aluminum carbonate complex calcium silicate and the mixture B and stirring to obtain the calcium carbonate complex calcium silicate.
3. The method for producing a water purifying agent for wastewater treatment according to claim 2, characterized in that: in the first step, the raw material components are respectively crushed to 60 meshes.
4. The method for producing a water purifying agent for wastewater treatment according to claim 2, characterized in that: the mixing and stirring time is not less than 10min each time, and the mixing and stirring speed is not less than 60n/min each time.
5. The method for producing a water purifying agent for wastewater treatment according to claim 2, characterized in that: the temperature of each mixing and stirring is above 25 ℃.
6. The method for producing a water purifying agent for wastewater treatment according to claim 2, characterized in that: the mixing humidity is below 30% in each mixing.
7. A method for using a water purifying agent for wastewater treatment is characterized in that: a method for treating waste water comprising adding the water purifying agent for treating waste water according to any one of claims 1 to 2 to the waste water, sufficiently stirring and mixing the mixture, and separating the precipitate and the supernatant, wherein the amount of the water purifying agent added is 0.1 to 0.3% of the amount of the waste water.
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| CN104909424A (en) * | 2015-05-25 | 2015-09-16 | 常州大学 | Method for treatment of high concentration ammonia nitrogen in monosodium glutamate wastewater |
| CN105037460A (en) * | 2015-07-23 | 2015-11-11 | 蚌埠市华东生物科技有限公司 | Flocculating agent for impurity removal process of steviol glycosides |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104909424A (en) * | 2015-05-25 | 2015-09-16 | 常州大学 | Method for treatment of high concentration ammonia nitrogen in monosodium glutamate wastewater |
| CN105037460A (en) * | 2015-07-23 | 2015-11-11 | 蚌埠市华东生物科技有限公司 | Flocculating agent for impurity removal process of steviol glycosides |
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