CN108394942A - A kind of composite drug and preparation method thereof of river lake ecological management - Google Patents

A kind of composite drug and preparation method thereof of river lake ecological management Download PDF

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Publication number
CN108394942A
CN108394942A CN201810273082.5A CN201810273082A CN108394942A CN 108394942 A CN108394942 A CN 108394942A CN 201810273082 A CN201810273082 A CN 201810273082A CN 108394942 A CN108394942 A CN 108394942A
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parts
component
composite drug
weight
ecological management
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左红影
许桂贤
黄振方
许耀森
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Guangzhou Huanfa Environmental Protection Engineering Co Ltd
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Guangzhou Huanfa Environmental Protection Engineering Co Ltd
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    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00Treatment of water, waste water, or sewage
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00Treatment of water, waste water, or sewage
    • C02F1/28Treatment of water, waste water, or sewage by sorption
    • C02F1/281Treatment of water, waste water, or sewage by sorption using inorganic sorbents
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00Treatment of water, waste water, or sewage
    • C02F1/28Treatment of water, waste water, or sewage by sorption
    • C02F1/283Treatment of water, waste water, or sewage by sorption using coal, charred products, or inorganic mixtures containing them
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00Treatment of water, waste water, or sewage
    • C02F1/50Treatment of water, waste water, or sewage by addition or application of a germicide or by oligodynamic treatment
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00Treatment of water, waste water, or sewage
    • C02F1/52Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
    • C02F1/5236Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using inorganic agents
    • C02F1/5245Treatment 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
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00Treatment of water, waste water, or sewage
    • C02F1/52Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
    • C02F1/54Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using organic material
    • C02F1/56Macromolecular compounds
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00Treatment of water, waste water, or sewage
    • C02F1/72Treatment of water, waste water, or sewage by oxidation
    • C02F1/722Oxidation by peroxides
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00Treatment of water, waste water, or sewage
    • C02F1/72Treatment of water, waste water, or sewage by oxidation
    • C02F1/76Treatment of water, waste water, or sewage by oxidation with halogens or compounds of halogens
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2101/00Nature of the contaminant
    • C02F2101/10Inorganic compounds
    • C02F2101/105Phosphorus compounds
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2101/00Nature of the contaminant
    • C02F2101/10Inorganic compounds
    • C02F2101/16Nitrogen compounds, e.g. ammonia
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2101/00Nature of the contaminant
    • C02F2101/10Inorganic compounds
    • C02F2101/20Heavy metals or heavy metal compounds
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2101/00Nature of the contaminant
    • C02F2101/30Organic compounds
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2103/00Nature of the water, waste water, sewage or sludge to be treated
    • C02F2103/007Contaminated open waterways, rivers, lakes or ponds
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2209/00Controlling or monitoring parameters in water treatment
    • C02F2209/08Chemical Oxygen Demand [COD]; Biological Oxygen Demand [BOD]
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2209/00Controlling or monitoring parameters in water treatment
    • C02F2209/16Total nitrogen (tkN-N)
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02ATECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A20/00Water conservation; Efficient water supply; Efficient water use
    • Y02A20/40Protecting water resources
    • Y02A20/402River restoration

Abstract

A kind of composite drug and preparation method thereof of river lake ecological management, is related to river and lake restoration of the ecosystem field, and the component of the composite drug and the parts by weight of each component are 20 40 parts of coagulant, 5 20 parts of oxidant, 40 45 parts of diatom ooze, 10 20 parts of sawdust, 10 20 parts of kaolin, 5 10 parts of white carbon, 35 parts of fungicide, 10 30 parts of metal halide, 15 parts of calcium hydroxide, 3 10 parts of biomass carbon, 3 12 parts of starch, 5 18 parts of Chinese medical extract.The present invention provides a kind of reliable, fruitful composite drug for repairing contaminated water body for contaminated water body, the composite drug have the characteristics that control expense it is low, on environment without influence, utmostly degrade water pollutant, it can be with COD, content of beary metal, TP the or TN contents of Fast Persistence reduced in polluted-water, achievable water body is quickly limpid, restore water transparency, comprehensive treatment expense is low.

Description

A kind of composite drug and preparation method thereof of river lake ecological management
Technical field:
The present invention relates to river and lake restoration of the ecosystem fields, and in particular to the composite drug and its system of a kind of river lake ecological management Preparation Method.
Background technology:
Currently, with the development of industry, environmental pollution has become the problem urgently to be resolved hurrily of facing mankind, wherein river lake Water pollution problems in pool is even more to cause global concern.Because its object is complicated, property is stablized for organic contamination in waste water And be difficult to be degraded, these hazard of contaminant are big, difficulty of governance is high.It is industrial go heavy metal ion in water removal, virulent pathogens, There are many ways to bacterium, organic matter.Traditional physical treatment method is not effective sewage water treatment method, only because of them It by pollutant from being transferred in water body in other substances, and cannot degrade to pollutant, also will produce secondary pollution.Biology Although facture can be destroyed, degradation of contaminant, its degradation cycle is long, it is difficult to the pollutant of degrading texture complexity, and it is dirty Water treating pond takes up a large area, to limit its application industrially.Chemical method is because it can aoxidize, organic dirt in degradation water It contaminates object and is widely paid close attention to, but common oxidant (H2O2、KMnO4, chlorine etc.) because expensive, cannot recycle The shortcomings of and cannot be widely used.Therefore a kind of cheap there is an urgent need for seeking, effect on environment is small, and good sewage processing effect is answered Close medicament.
Invention content:
In place of overcoming above-mentioned the shortcomings of the prior art, and provide a kind of river lake ecology Composite drug of improvement and preparation method thereof.
The technical solution adopted by the present invention is:A kind of composite drug of river lake ecological management, the component of the composite drug And the parts by weight of each component are 20-40 parts of coagulant, 5-20 parts of oxidant, 40-45 parts of diatom ooze, 10-20 parts of sawdust, kaolinite It is 10-20 parts native, 5-10 parts of white carbon, 3-5 parts of fungicide, 10-30 parts of metal halide, 1-5 parts of calcium hydroxide, biomass carbon 3- 10 parts, 3-12 parts of starch, 5-18 parts of Chinese medical extract.
The component of the composite drug and the parts by weight of each component are 33-38 parts of coagulant, 7-13 parts of oxidant, diatom ooze 42-44 parts, 11-17 parts of sawdust, 14-18 parts of kaolin, 5-8 parts of white carbon, 4-5 parts of fungicide, 15-25 parts of metal halide, 1-3 parts of calcium hydroxide, 5-8 parts of biomass carbon, 6-10 parts of starch, 10-15 parts of Chinese medical extract.
The component of the coagulant and the parts by weight of each component are 5-8 parts of polymer alumina, poly (sodium aspartate) 5-7 Part, 2-7 parts of polyacrylamide, 5-10 parts of alum, 3-6 parts of polyacrylic acid, 5-8 parts of ferric sulfate, 3-7 parts of ferric-polysilicate, zinc oxide 0.5-1.5 parts, 1-3 parts of laruyl alcohol sodium phosphate, 3-7 parts of disodium ethylene diamine tetraacetate.
The component of the oxidant and the parts by weight of each component are 2-5 parts of sodium peroxide, 1-8 parts of sodium chlorate, secondary chlorine Sour calcium 2-7 parts, 0.5-1 parts of 2-steryl benzothiazole.
The component of the fungicide and the parts by weight of each component are 2-3 parts of kresoxim-methyl, 1-2 parts of zineb, ozone oil 5-6 parts, 5-6 parts of dodecyl sodium sulfate, 1-3 parts of antierythrite, 1-5 parts of dipotassium glycyrrhizinate.
The component of the metal halide and the parts by weight of each component are 5-15 parts of iron chloride, 4-10 parts of sodium chloride, 1-5 parts of calcium chloride.
The component of the Chinese medical extract and the parts by weight of each component are 1-3 parts of garden burnet, 1-3 parts of camphorwood leaf, trifoliate jewelvine 1-5 parts of root, 1-3 parts of the tuber of stemona, 1-4 parts of Folium Meliae.
Another aspect of the present invention provides a kind of method for the composite drug preparing river lake ecological management, including following step Suddenly:
Step 1:Required Chinese medicine is weighed according to component, is smashed to pieces, the Traditional Chinese drug mixture after smashing to pieces is added in extractor, and 60 Be soaked in water 1-3h under the conditions of DEG C, and heating and refluxing extraction 1-2h falls filter residue with strainer filtering, is dried through 70 DEG C, dried object is ground Fine powder is worn into, is sieved up to Chinese medical extract powder by 350-400 mesh;
Step 2:Remaining component is weighed according to the parts by weight of each component and is crushed, and 350-400 mesh is sieved after crushing, obtains To corresponding powder;
Step 3:Corresponding powder is mixed, and mixed powder is added under conditions of temperature is 100-120 DEG C Heat and separating twice, after cooling, pack are sealed to finished product.
Beneficial effects of the present invention are:The present invention provides a kind of reliable, fruitful use for contaminated water body In repair be contaminated water body composite drug, the composite drug have control expense it is low, on environment without influence, utmostly degrade The features such as water pollutant, the composite drug is easy to use, need to only be sprinkled upon composite drug on rivers and lakes or be dissolved in Water is sprayed at water surface, by cohesion, precipitation and decomposes various pollutants, pollutant is sunk to the bottom, without various The processing of water processing establishment loads, and reduces the installation cost and maintenance cost of project cost.Secondly, the present invention can quickly be held Continuous COD (COD), content of beary metal, TP (total phosphorus) or TN (total nitrogen) contents reduced in polluted-water, it can be achieved that Water body is quickly limpid, restores water transparency, and comprehensive treatment expense is low;In addition, the preparation method of the composite drug in the present invention Simply, at low cost, using simple, can be with large batch of production application.
Specific implementation mode:
Invention is further explained in conjunction with specific embodiments:
Embodiment one:
A kind of composite drug of river lake ecological management, the component of the composite drug and the parts by weight of each component are polymerization 5 parts of aluminium oxide, 6 parts of poly (sodium aspartate), 3 parts of polyacrylamide, 5 parts of alum, 3 parts of polyacrylic acid, 5 parts of ferric sulfate, polysilicon acid 4 parts of iron, 0.5 part of zinc oxide, 1 part of laruyl alcohol sodium phosphate, 7 parts of disodium ethylene diamine tetraacetate, 2 parts of sodium peroxide, sodium chlorate 1 Part, 3 parts of calcium hypochlorite, 0.5 part of 2-steryl benzothiazole, 40 parts of diatom ooze, 12 parts of sawdust, 11 parts of kaolin, white carbon 6 Part, 2 parts of kresoxim-methyl, 2 parts of zineb, 5 parts of ozone oil, 6 parts of dodecyl sodium sulfate, 1 part of antierythrite, 2 parts of dipotassium glycyrrhizinate, 14 parts of iron chloride, 5 parts of sodium chloride, 1 part of calcium chloride, 2 parts of calcium hydroxide, 4 parts of biomass carbon, 12 parts of starch, 1 part of garden burnet, camphorwood 2 parts of leaf, 1 part of derris root, 1 part of the tuber of stemona, 4 parts of Folium Meliae.
Embodiment two:
A kind of composite drug of river lake ecological management, the component of the composite drug and the parts by weight of each component are polymerization 7 parts of aluminium oxide, 6 parts of poly (sodium aspartate), 5 parts of polyacrylamide, 7 parts of alum, 5 parts of polyacrylic acid, 7 parts of ferric sulfate, polysilicon acid 5 parts of iron, 1 part of zinc oxide, 2 parts of laruyl alcohol sodium phosphate, 4 parts of disodium ethylene diamine tetraacetate, 3 parts of sodium peroxide, 5 parts of sodium chlorate, 6 parts of calcium hypochlorite, 0.7 part of 2-steryl benzothiazole, 42 parts of diatom ooze, 15 parts of sawdust, 14 parts of kaolin, 8 parts of white carbon, ether 3 parts of bacterium ester, 1 part of zineb, 6 parts of ozone oil, 5 parts of dodecyl sodium sulfate, 3 parts of antierythrite, 4 parts of dipotassium glycyrrhizinate, chlorination 5 parts of iron, 8 parts of sodium chloride, 5 parts of calcium chloride, 4 parts of calcium hydroxide, 8 parts of biomass carbon, 4 parts of starch, 3 parts of garden burnet, 2 parts of camphorwood leaf, 4 parts of derris root, 2 parts of the tuber of stemona, 2 parts of Folium Meliae.
Embodiment three
A kind of composite drug of river lake ecological management, the component of the composite drug and the parts by weight of each component are polymerization 8 parts of aluminium oxide, 7 parts of poly (sodium aspartate), 6 parts of polyacrylamide, 10 parts of alum, 6 parts of polyacrylic acid, 7 parts of ferric sulfate, polysilicon acid 7 parts of iron, 1.5 parts of zinc oxide, 2 parts of laruyl alcohol sodium phosphate, 3 parts of disodium ethylene diamine tetraacetate, 5 parts of sodium peroxide, sodium chlorate 8 Part, 6 parts of calcium hypochlorite, 0.9 part of 2-steryl benzothiazole, 45 parts of diatom ooze, 20 parts of sawdust, 18 parts of kaolin, white carbon 9 Part, 3 parts of kresoxim-methyl, 1 part of zineb, 5 parts of ozone oil, 6 parts of dodecyl sodium sulfate, 2 parts of antierythrite, 1 part of dipotassium glycyrrhizinate, 10 parts of iron chloride, 9 parts of sodium chloride, 4 parts of calcium chloride, 5 parts of calcium hydroxide, 10 parts of biomass carbon, 3 parts of starch, 3 parts of garden burnet, camphorwood 3 parts of leaf, 5 parts of derris root, 3 parts of the tuber of stemona, 1 part of Folium Meliae.
Composite drug in embodiment one, embodiment two and embodiment three can be prepared by following methods, system Preparation Method includes the following steps:
Step 1:Required Chinese medicine is weighed according to the component of each Chinese medicine, is smashed to pieces, the Traditional Chinese drug mixture addition after smashing to pieces carries It takes in tank, be soaked in water 1-3h under the conditions of 60 DEG C, and heating and refluxing extraction 1-2h falls filter residue with strainer filtering, is dried through 70 DEG C, will Dried object is ground into fine powder, is sieved up to Chinese medical extract powder by 350-400 mesh;
Step 2:Remaining component is weighed according to the parts by weight of each component and is crushed, and 350-400 mesh is sieved after crushing, obtains To corresponding powder;
Step 3:Corresponding powder is mixed, and mixed powder is added under conditions of temperature is 100-120 DEG C Heat and separating twice, after cooling, pack are sealed to finished product.
Embodiment one, embodiment two, the composite drug that embodiment three obtains and common sewage-treating agent are respectively used to Same pollution water quality is handled, taking that treated, water sample carries out every test, and test result is as follows shown in table one.
Table one:
As can be seen from the above table, the composite drug in the present invention has extraordinary place relative to common sewage-treating agent Effect is managed, has good improvement on indices, especially has in performance through the processed water quality of the composite drug The indices of the characteristics of high-efficient and lasting, water quality still can persistently be kept.
The present invention provides a kind of reliable, fruitful for repairing answering for contaminated water body for contaminated water body Close medicament, the composite drug have the characteristics that control expense it is low, on environment without influence, utmostly degrade water pollutant, this Composite drug is easy to use, and only composite drug need to be sprinkled upon on rivers and lakes or be dissolved in water is sprayed at water surface, leads to It crosses cohesion, precipitation and decomposes various pollutants, pollutant is sunk to the bottom, the processing without various water processing establishments is negative It carries, reduces the installation cost and maintenance cost of project cost.Secondly, the present invention can be in the reduction polluted-water of Fast Persistence COD (COD), content of beary metal, TP (total phosphorus) or TN (total nitrogen) contents, it can be achieved that water body is quickly limpid, restore water Body transparency, comprehensive treatment expense are low;In addition, the preparation method of the composite drug in the present invention it is simple, it is at low cost, use letter It is single, it can be with large batch of production application.
The preparation method and application of above-described embodiment and the non-limiting present invention, any person of an ordinary skill in the technical field couple Its appropriate variation or modification for being made all should be regarded as the scope of patent protection for not departing from the present invention.

Claims (8)

1. a kind of composite drug of river lake ecological management, it is characterised in that:The component of the composite drug and the weight of each component Number is 20-40 parts of coagulant, 5-20 parts of oxidant, 40-45 parts of diatom ooze, 10-20 parts of sawdust, 10-20 parts of kaolin, hard charcoal It is 5-10 parts black, 3-5 parts of fungicide, 10-30 parts of metal halide, 1-5 parts of calcium hydroxide, 3-10 parts of biomass carbon, starch 3-12 Part, 5-18 parts of Chinese medical extract.
2. the composite drug of river lake according to claim 1 ecological management, it is characterised in that:The component of the composite drug And the parts by weight of each component are 33-38 parts of coagulant, 7-13 parts of oxidant, 42-44 parts of diatom ooze, 11-17 parts of sawdust, kaolinite It is 14-18 parts native, 5-8 parts of white carbon, 4-5 parts of fungicide, 15-25 parts of metal halide, 1-3 parts of calcium hydroxide, biomass carbon 5-8 Part, 6-10 parts of starch, 10-15 parts of Chinese medical extract.
3. the composite drug of river lake according to claim 1 ecological management, it is characterised in that:The group of the coagulant The parts by weight of part and each component are 5-8 parts of polymer alumina, 5-7 parts of poly (sodium aspartate), 2-7 parts of polyacrylamide, alum 5-10 parts, 3-6 parts of polyacrylic acid, 5-8 parts of ferric sulfate, 3-7 parts of ferric-polysilicate, 0.5-1.5 parts of zinc oxide, laruyl alcohol sodium phosphate 1-3 parts, 3-7 parts of disodium ethylene diamine tetraacetate.
4. the composite drug of river lake according to claim 1 ecological management, it is characterised in that:The group of the oxidant The parts by weight of part and each component are 2-5 parts of sodium peroxide, 1-8 parts of sodium chlorate, 2-7 parts of calcium hypochlorite, 2- mercapto alcohol radical benzo thiophenes 0.5-1 parts of azoles.
5. the composite drug of river lake according to claim 1 ecological management, it is characterised in that:The group of the fungicide The parts by weight of part and each component are 2-3 parts of kresoxim-methyl, 1-2 parts of zineb, 5-6 parts of ozone oil, dodecyl sodium sulfate 5-6 Part, 1-3 parts of antierythrite, 1-5 parts of dipotassium glycyrrhizinate.
6. the composite drug of river lake according to claim 1 ecological management, it is characterised in that:The metal halide Component and each component parts by weight be 5-15 parts of iron chloride, 4-10 parts of sodium chloride, 1-5 parts of calcium chloride.
7. the composite drug of river lake according to claim 1 ecological management, it is characterised in that:The Chinese medical extract Component and each component parts by weight be 1-3 parts of garden burnet, 1-3 parts of camphorwood leaf, 1-5 parts of derris root, 1-3 parts of the tuber of stemona, Folium Meliae 1-4 parts.
8. the preparation method of the composite drug of any river lake ecological management of claim 1~7, it is characterised in that:Packet Include following steps:
Step 1:Required Chinese medicine is weighed according to component, is smashed to pieces, the Traditional Chinese drug mixture after smashing to pieces is added in extractor, 60 DEG C of items Be soaked in water 1-3h under part, and heating and refluxing extraction 1-2h falls filter residue with strainer filtering, is dried through 70 DEG C, dried object is ground into Fine powder is sieved by 350-400 mesh up to Chinese medical extract powder;
Step 2:Remaining component is weighed according to the parts by weight of each component and is crushed, and is smashed it through 350-400 mesh sieve, is obtained phase The powder answered;
Step 3:Corresponding powder is mixed, and by mixed powder temperature be 100-120 DEG C under conditions of heating and Separating twice, after cooling, pack are sealed to finished product.
CN201810273082.5A 2018-03-29 2018-03-29 A kind of composite drug and preparation method thereof of river lake ecological management Pending CN108394942A (en)

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CN109110834A (en) * 2018-08-28 2019-01-01 中国水产科学研究院淡水渔业研究中心 A kind of prevention and control largemouth bass megathermal period stress restoration of the ecosystem cream and its application
CN110316835A (en) * 2019-07-03 2019-10-11 合山市春旭环保科技有限责任公司 A kind of high efficiency composition high polymer coagulant and preparation method thereof
CN110316835B (en) * 2019-07-03 2022-03-29 合山市春旭环保科技有限责任公司 High-efficiency composite polymeric flocculant and preparation method thereof

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