CN111517382A - Lake and river water body treatment particle containing silicon-calcium-magnesium minerals and preparation method and application method thereof - Google Patents
Lake and river water body treatment particle containing silicon-calcium-magnesium minerals and preparation method and application method thereof Download PDFInfo
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- CN111517382A CN111517382A CN202010309203.4A CN202010309203A CN111517382A CN 111517382 A CN111517382 A CN 111517382A CN 202010309203 A CN202010309203 A CN 202010309203A CN 111517382 A CN111517382 A CN 111517382A
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 105
- 239000002245 particle Substances 0.000 title claims abstract description 36
- 229910001607 magnesium mineral Inorganic materials 0.000 title claims abstract description 32
- LAZOHFXCELVBBV-UHFFFAOYSA-N [Mg].[Ca].[Si] Chemical compound [Mg].[Ca].[Si] LAZOHFXCELVBBV-UHFFFAOYSA-N 0.000 title claims description 13
- 238000002360 preparation method Methods 0.000 title claims description 11
- 238000000034 method Methods 0.000 title description 8
- 239000010456 wollastonite Substances 0.000 claims abstract description 30
- 229910052882 wollastonite Inorganic materials 0.000 claims abstract description 27
- 239000011777 magnesium Substances 0.000 claims abstract description 25
- 229910052749 magnesium Inorganic materials 0.000 claims abstract description 25
- 239000011575 calcium Substances 0.000 claims abstract description 24
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 claims abstract description 23
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 claims abstract description 22
- GUJOJGAPFQRJSV-UHFFFAOYSA-N dialuminum;dioxosilane;oxygen(2-);hydrate Chemical compound O.[O-2].[O-2].[O-2].[Al+3].[Al+3].O=[Si]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O GUJOJGAPFQRJSV-UHFFFAOYSA-N 0.000 claims abstract description 22
- 229910052901 montmorillonite Inorganic materials 0.000 claims abstract description 22
- 229910052710 silicon Inorganic materials 0.000 claims abstract description 22
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims abstract description 20
- 239000010703 silicon Substances 0.000 claims abstract description 20
- 229910001576 calcium mineral Inorganic materials 0.000 claims abstract description 19
- 229920001661 Chitosan Polymers 0.000 claims abstract description 15
- 239000010881 fly ash Substances 0.000 claims abstract description 15
- 239000010902 straw Substances 0.000 claims abstract description 15
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 claims abstract description 14
- 238000001354 calcination Methods 0.000 claims abstract description 9
- 238000010438 heat treatment Methods 0.000 claims abstract description 9
- 238000002156 mixing Methods 0.000 claims abstract description 9
- 229910052500 inorganic mineral Inorganic materials 0.000 claims abstract description 7
- 239000011707 mineral Substances 0.000 claims abstract description 7
- 239000000843 powder Substances 0.000 claims description 44
- 238000007873 sieving Methods 0.000 claims description 15
- 239000001095 magnesium carbonate Substances 0.000 claims description 12
- ZLNQQNXFFQJAID-UHFFFAOYSA-L magnesium carbonate Chemical group [Mg+2].[O-]C([O-])=O ZLNQQNXFFQJAID-UHFFFAOYSA-L 0.000 claims description 12
- 229910000021 magnesium carbonate Inorganic materials 0.000 claims description 12
- 235000014380 magnesium carbonate Nutrition 0.000 claims description 12
- 239000010459 dolomite Substances 0.000 claims description 10
- 229910000514 dolomite Inorganic materials 0.000 claims description 10
- 239000008187 granular material Substances 0.000 claims description 9
- 241000196324 Embryophyta Species 0.000 claims description 7
- 238000001816 cooling Methods 0.000 claims description 7
- 238000005469 granulation Methods 0.000 claims description 7
- 230000003179 granulation Effects 0.000 claims description 7
- 238000003756 stirring Methods 0.000 claims description 7
- 238000005303 weighing Methods 0.000 claims description 7
- 235000010755 mineral Nutrition 0.000 claims description 6
- 239000011148 porous material Substances 0.000 claims description 6
- 239000002994 raw material Substances 0.000 claims description 4
- 244000105624 Arachis hypogaea Species 0.000 claims description 3
- 241000209134 Arundinaria Species 0.000 claims description 3
- 235000005273 Canna coccinea Nutrition 0.000 claims description 3
- 240000008555 Canna flaccida Species 0.000 claims description 3
- 240000003826 Eichhornia crassipes Species 0.000 claims description 3
- 244000207740 Lemna minor Species 0.000 claims description 3
- 235000006439 Lemna minor Nutrition 0.000 claims description 3
- 241000209490 Nymphaea Species 0.000 claims description 3
- 235000016791 Nymphaea odorata subsp odorata Nutrition 0.000 claims description 3
- 235000014676 Phragmites communis Nutrition 0.000 claims description 3
- 235000001855 Portulaca oleracea Nutrition 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 3
- 235000020232 peanut Nutrition 0.000 claims description 3
- 235000017060 Arachis glabrata Nutrition 0.000 claims description 2
- 235000010777 Arachis hypogaea Nutrition 0.000 claims description 2
- 235000018262 Arachis monticola Nutrition 0.000 claims description 2
- 229910052791 calcium Inorganic materials 0.000 claims 5
- 230000000694 effects Effects 0.000 abstract description 7
- 239000003344 environmental pollutant Substances 0.000 abstract description 6
- 231100000719 pollutant Toxicity 0.000 abstract description 6
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 abstract description 4
- 229910052698 phosphorus Inorganic materials 0.000 abstract description 4
- 239000011574 phosphorus Substances 0.000 abstract description 4
- XKMRRTOUMJRJIA-UHFFFAOYSA-N ammonia nh3 Chemical compound N.N XKMRRTOUMJRJIA-UHFFFAOYSA-N 0.000 abstract description 3
- 238000000227 grinding Methods 0.000 abstract description 2
- 150000003568 thioethers Chemical class 0.000 abstract description 2
- 239000010865 sewage Substances 0.000 description 6
- 230000009286 beneficial effect Effects 0.000 description 5
- 230000000052 comparative effect Effects 0.000 description 5
- 238000010298 pulverizing process Methods 0.000 description 5
- 238000000746 purification Methods 0.000 description 5
- 239000000126 substance Substances 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 238000012851 eutrophication Methods 0.000 description 2
- 239000002351 wastewater Substances 0.000 description 2
- 239000003643 water by type Substances 0.000 description 2
- 238000003911 water pollution Methods 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 241000195493 Cryptophyta Species 0.000 description 1
- 241000282414 Homo sapiens Species 0.000 description 1
- 241000192710 Microcystis aeruginosa Species 0.000 description 1
- UCKMPCXJQFINFW-UHFFFAOYSA-N Sulphide Chemical compound [S-2] UCKMPCXJQFINFW-UHFFFAOYSA-N 0.000 description 1
- 238000005273 aeration Methods 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 239000005442 atmospheric precipitation Substances 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 238000010790 dilution Methods 0.000 description 1
- 239000012895 dilution Substances 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000005189 flocculation Methods 0.000 description 1
- 230000016615 flocculation Effects 0.000 description 1
- 239000003673 groundwater Substances 0.000 description 1
- 229910001385 heavy metal Inorganic materials 0.000 description 1
- 244000144972 livestock Species 0.000 description 1
- 239000010871 livestock manure Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 235000015097 nutrients Nutrition 0.000 description 1
- 238000006213 oxygenation reaction Methods 0.000 description 1
- 244000144977 poultry Species 0.000 description 1
- 230000001376 precipitating effect Effects 0.000 description 1
- 238000004062 sedimentation Methods 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000002352 surface water Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- 239000003403 water pollutant 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
- C02F1/00—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
- C02F1/28—Treatment of water, waste water, or sewage by sorption
- C02F1/281—Treatment of water, waste water, or sewage by sorption using inorganic sorbents
-
- 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
- C02F1/28—Treatment of water, waste water, or sewage by sorption
- C02F1/286—Treatment of water, waste water, or sewage by sorption using natural organic sorbents or derivatives thereof
-
- 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
- C02F1/52—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
-
- 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
- C02F1/5263—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using natural chemical compounds
-
- 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
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/10—Inorganic compounds
- C02F2101/101—Sulfur compounds
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/10—Inorganic compounds
- C02F2101/105—Phosphorus compounds
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/10—Inorganic compounds
- C02F2101/16—Nitrogen compounds, e.g. ammonia
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/10—Inorganic compounds
- C02F2101/20—Heavy metals or heavy metal compounds
Landscapes
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Hydrology & Water Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Biotechnology (AREA)
- Botany (AREA)
- Biodiversity & Conservation Biology (AREA)
- Microbiology (AREA)
- Water Treatment By Sorption (AREA)
- Separation Of Suspended Particles By Flocculating Agents (AREA)
Abstract
The invention discloses a lake and river water body treatment particle containing silicon, calcium and magnesium minerals, which consists of 30-50 parts of wollastonite, 20-35 parts of magnesium-containing ore, 5-10 parts of montmorillonite, 15-20 parts of fly ash, 10-20 parts of straw, 5-15 parts of polyaluminium chloride and 10-20 parts of chitosan; the lake and river water treatment particles containing the silicon, calcium and magnesium minerals are prepared by the steps of grinding, heating, calcining and the like, and are formed by mixing wollastonite, magnesium-containing ores and other natural minerals, so that pollutants can be effectively promoted to be degraded, flocculated and settled, the turbidity of the water body is reduced, the biotoxicity effect is eliminated, and the water quality is improved; the product has certain removal capacity on total phosphorus, ammonia nitrogen and sulfides in the water body, can comprehensively ensure the improvement of the water quality of the water body, and has stable and long-acting measures; the product of the invention has low cost, convenient use and wide application range, and is suitable for water bodies with different pollution degrees.
Description
Technical Field
The invention relates to the technical field of polluted water body treatment, in particular to lake and river water body treatment particles containing silicon, calcium and magnesium minerals and a preparation method and an application method thereof.
Background
With the rapid development of economy in China, the continuous expansion of urban scale and the increase of population, the sewage discharge amount is increasing day by day, and the water environment is damaged by pollution, so that the available water resources meeting the water quality standard are greatly reduced. The outstanding water pollution problem in China at present is that the water pollutant load exceeds the self-purification capacity and the bearing capacity of an aqueous ecological system, and the eutrophication of water bodies in rivers and lakes is caused. Eutrophication of water quality occurs not only in closed or semi-closed waters such as lakes, reservoirs and gulfs, but also in stagnant urban inland river small bodies, rivers such as semi-closed creeks and rivers, and estuary waters. Therefore, how to treat the water body pollution and realize the sustainable utilization of water resources is a problem which needs to be solved urgently for realizing the sustainable development of the economy and the society in China.
The surface water bodies such as rivers, lakes and the like are gathering places for discharging various sewage, the sewage discharge is increased due to the aggravation of production and living activities of human beings, the dilution and purification effects of the river and lake water bodies are greatly weakened and exceed the self-purification capacity limit of the river and lake water bodies, so that pollutants are deposited in the water, on one hand, the water bodies are polluted and black and smelly, and on the other hand, the algae are overgrown and flooded. Even if thorough sewage interception and dredging are carried out, because rivers and lakes are an open water environment, the standard-reaching wastewater discharged after being treated by urban sewage treatment plants and the standard-reaching wastewater discharged after being treated by the sewage generated by industrial enterprises and livestock and poultry centralized farms still contain certain pollutants; the livestock manure scattered in vast rural areas is difficult to avoid artificial waste disposal, and organic matters, nitrogen, phosphorus and other nutrient substances in surface soil flow into surface runoff caused by rainfall, snow and other atmospheric precipitation, and water quality of water bodies in rivers and lakes is polluted again after a long time due to continuous evaporation of the water bodies in the rivers and lakes, so that the problem of pollution of the water bodies in the rivers and lakes cannot be solved once and for all.
In view of the current situation that most of the water bodies in rivers and lakes are polluted or seriously polluted and the pollution still exists for a long time, the direct water body pollution treatment and purification and ecological restoration of the polluted water bodies in rivers and lakes are very necessary and urgent, the water pollution treatment and ecological environment restoration technologies which are generally adopted at present for intercepting and dredging, conducting water diversion and water changing to build large-range water flow circulation and conducting dynamic aeration and oxygenation all have the disadvantages of high energy consumption and carbon emission increase, large investment, high operation cost and large resource and energy consumption occupation,
therefore, the technical problems to be solved by the technical personnel in the field are urgently needed to provide the energy-saving emission-reducing type particles for treating the water bodies of the lakes and the rivers, which have the advantages of low investment, economy and applicability and energy conservation.
Disclosure of Invention
In view of the above, the invention provides the lake and river water body treatment particles containing the silicon, calcium and magnesium minerals, which are economical and applicable and have good treatment effect.
In order to achieve the purpose, the invention adopts the following technical scheme:
a lake and river water body treatment particle containing silicon, calcium and magnesium minerals is composed of the following raw materials in parts by weight: 30-50 parts of wollastonite, 20-35 parts of magnesium-containing ore, 5-10 parts of montmorillonite, 15-20 parts of fly ash, 10-20 parts of straw, 5-15 parts of polyaluminium chloride and 10-20 parts of chitosan.
Compared with the prior art, the invention has the beneficial effects that: the invention is formed by mixing wollastonite, magnesium-containing ore and other natural minerals, can effectively promote the degradation and flocculation sedimentation of pollutants, reduce the turbidity of water, eliminate the biotoxicity effect and improve the water quality; the invention takes natural mineral substances as main components, and does not need large-scale construction equipment; the product has certain removal capacity on total phosphorus, ammonia nitrogen and sulfides in the water body, can comprehensively ensure the improvement of the water quality of the water body, and has stable and long-acting measures; the product of the invention has low cost, convenient use and wide application range, and can be suitable for water bodies with different pollution degrees; the particles of the present invention are suitable for water blooms, red tides and water sources polluted by various pollutants in reservoirs, rivers, natural lakes, groundwater.
Further, the magnesium-containing ore is magnesite or dolomite.
Furthermore, the MgO content in the magnesite is more than 40 percent or the MgO content in the dolomite is more than 20 percent.
Adopt above-mentioned further beneficial effect to lie in: the magnesite or dolomite can be well combined with the wollastonite, so that the silicon-calcium-magnesium minerals are used for absorbing and precipitating pollutants such as total phosphorus, ammonia nitrogen, sulfide and the like, experiments prove that the effect of singly using the magnesite or dolomite on water body restoration is poor, and the best water body treatment effect can be achieved within the limited range of the invention.
Further, SiO in the wollastonite2The content is more than 35 percent, and the content of CaO is more than 30 percent.
The invention also provides a preparation method of the particles for treating the lake and river water bodies containing the silicon, calcium and magnesium minerals, which comprises the following steps:
(1) weighing the raw materials according to the lake and river water body treatment particles;
(2) crushing wollastonite, magnesium-containing ore and montmorillonite powder and sieving the crushed materials with a 100-mesh and 200-mesh sieve;
(3) mixing wollastonite powder, magnesium-containing ore powder and montmorillonite powder with fly ash, straws, polyaluminium chloride and chitosan, heating for 20-40min at the temperature of 160-180 ℃, and after cooling, carrying out secondary crushing and sieving with a 200-mesh and 300-mesh sieve for later use;
(4) adding water into the powder sieved in the step (3) until the powder is stably formed, uniformly stirring the powder, and performing wet roller granulation to obtain granular balls;
(5) and (4) calcining the granular balls in the step (4) in a high-temperature furnace at the temperature of 1000-1400 ℃ for 3-5h to obtain the lake and river water body treatment granules containing the silicon-calcium-magnesium minerals.
The invention has the beneficial effects that: the preparation method of the water treatment granule is simple, and the water treatment granule can be obtained only by grinding, sieving, heating and calcining.
The invention also provides an application method of the lake and river water body treatment particles containing the silicon, calcium and magnesium minerals in the treatment of the lake and river water body.
The application method comprises the following steps:
1) laying two layers of light shielding films on the surface of a water body, wherein the light shielding films are provided with air holes, and the air holes of the two layers of light shielding films are staggered;
2) the prepared lake and river water body treatment particles containing the silicon-calcium-magnesium minerals are uniformly scattered between two shading films, and 40-60 particles are put in each square meter of shading film.
The invention has the beneficial effects that: the invention adopts the shading film to filter the water body, and simultaneously the treatment particles are placed in the middle, and the invention realizes the purification of the water body by a simple using method.
Further, the pore diameter of the air pore is 2-8cm, and the pore density is 100-2。
Furthermore, the application method also comprises the step of controlling the water bodies of the lakes and the rivers by combining with planting of the aquatic ecological plant landscape.
Furthermore, the aquatic ecological plant landscape is one or more of duckweed, water peanut, water hyacinth, canna, water lily, cane shoot and reed.
Adopt above-mentioned further beneficial effect to lie in: the invention can be used for assisting in planting aquatic ecological plant landscape, assisting in absorbing heavy metals and other substances in the water body and improving the water surface environment while treating the water body.
Detailed Description
The technical solutions in the embodiments of the present invention will be 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.
Firstly, carrying out component analysis and detection on the adopted magnesite, dolomite and wollastonite, wherein the detection result shows that the MgO content in the adopted magnesite is more than 40 percent, and the MgO content in the adopted dolomite is more than 20 percent; SiO in wollastonite2The content is more than 35 percent, and the content of CaO is more than 30 percent.
Example 1
The preparation method of the lake and river water body treatment particles containing the silicon, calcium and magnesium minerals comprises the following steps:
(1) weighing 30 parts of wollastonite, 35 parts of magnesite, 5 parts of montmorillonite, 15 parts of fly ash, 20 parts of straw, 15 parts of polychloride and 10 parts of chitosan;
(2) crushing wollastonite, magnesium-containing ore and montmorillonite and sieving by a 100-mesh sieve;
(3) mixing wollastonite powder, magnesium-containing ore powder and montmorillonite powder with fly ash, straw, polyaluminium chloride and chitosan, heating at 180 deg.C for 40min, cooling, pulverizing again, and sieving with 200 mesh sieve;
(4) adding water into the powder sieved in the step (3) until the powder is stably formed, uniformly stirring the powder, and performing wet roller granulation to obtain granular balls;
(5) and (4) calcining the granular balls in the step (4) in a high-temperature furnace at 1400 ℃ for 3h to obtain the lake and river water body treatment granules containing the silicon-calcium-magnesium minerals.
Example 2
The preparation method of the lake and river water body treatment particles containing the silicon, calcium and magnesium minerals comprises the following steps:
(1) weighing 50 parts of wollastonite, 20 parts of dolomite, 10 parts of montmorillonite, 15 parts of fly ash, 10 parts of straw, 5 parts of polyaluminium chloride and 20 parts of chitosan;
(2) crushing wollastonite, magnesium-containing ore and montmorillonite and sieving by a 200-mesh sieve;
(3) mixing wollastonite powder, magnesium-containing ore powder and montmorillonite powder with fly ash, straw, polyaluminium chloride and chitosan, heating at 160 deg.C for 20min, cooling, pulverizing again, and sieving with 300 mesh sieve;
(4) adding water into the powder sieved in the step (3) until the powder is stably formed, uniformly stirring the powder, and performing wet roller granulation to obtain granular balls;
(5) and (4) calcining the granular balls in the step (4) in a high-temperature furnace at 1000 ℃ for 5 hours to obtain the lake and river water body treatment granules containing the silicon-calcium-magnesium minerals.
Example 3
The preparation method of the lake and river water body treatment particles containing the silicon, calcium and magnesium minerals comprises the following steps:
(1) weighing 40 parts of wollastonite, 28 parts of magnesite, 7 parts of montmorillonite, 18 parts of fly ash, 15 parts of straw, 10 parts of polyaluminium chloride and 15 parts of chitosan;
(2) crushing wollastonite, magnesium-containing ore and montmorillonite and sieving the crushed materials with a 150-mesh sieve;
(3) mixing wollastonite powder, magnesium-containing ore powder and montmorillonite powder with fly ash, straw, polyaluminium chloride and chitosan, heating at 170 deg.C for 30min, cooling, pulverizing again, and sieving with 250 mesh sieve;
(4) adding water into the powder sieved in the step (3) until the powder is stably formed, uniformly stirring the powder, and performing wet roller granulation to obtain granular balls;
(5) and (4) calcining the granular balls in the step (4) in a high-temperature furnace at 1200 ℃ for 4 hours to obtain the lake and river water body treatment granules containing the silicon-calcium-magnesium minerals.
Example 4
The preparation method of the lake and river water body treatment particles containing the silicon, calcium and magnesium minerals comprises the following steps:
(1) weighing 45 parts of wollastonite, 25 parts of dolomite, 8 parts of montmorillonite, 16 parts of fly ash, 12 parts of straw, 12 parts of polyaluminium chloride and 12 parts of chitosan;
(2) crushing wollastonite, magnesium-containing ore and montmorillonite and sieving by a 120-mesh sieve;
(3) mixing wollastonite powder, magnesium-containing ore powder and montmorillonite powder with fly ash, straw, polyaluminium chloride and chitosan, heating at 175 ℃ for 25min, cooling, pulverizing again, and sieving with 200 mesh sieve;
(4) adding water into the powder sieved in the step (3) until the powder is stably formed, uniformly stirring the powder, and performing wet roller granulation to obtain granular balls;
(5) and (4) calcining the granular balls in the step (4) in a high-temperature furnace at 1350 ℃ for 3h to obtain the lake and river water body treatment granules containing the silicon-calcium-magnesium minerals.
Example 5
The preparation method of the lake and river water body treatment particles containing the silicon, calcium and magnesium minerals comprises the following steps:
(1) weighing 35 parts of wollastonite, 35 parts of magnesite, 5 parts of montmorillonite, 20 parts of fly ash, 15 parts of straw, 10 parts of polyaluminium chloride and 20 parts of chitosan;
(2) crushing wollastonite, magnesium-containing ore and montmorillonite and sieving by a 100-mesh sieve;
(3) mixing wollastonite powder, magnesium-containing ore powder and montmorillonite powder with fly ash, straw, polyaluminium chloride and chitosan, heating at 180 deg.C for 20min, cooling, pulverizing again, and sieving with 300 mesh sieve;
(4) adding water into the powder sieved in the step (3) until the powder is stably formed, uniformly stirring the powder, and performing wet roller granulation to obtain granular balls;
(5) and (4) calcining the granular balls in the step (4) in a high-temperature furnace at 1150 ℃ for 4 hours to obtain the lake and river water body treatment granules containing the silicon-calcium-magnesium minerals.
Test example 1
The polluted water bodies of rivers and lakes are selected, and the lake and river water body treatment particles containing the silicon, calcium and magnesium minerals prepared in the embodiments 1 to 5 of the invention are used in the same basin by the following method:
1) laying two layers of light shielding films on the surface of a water body, wherein the light shielding films are provided with gas-water holes, the gas-water holes of the two layers of light shielding films are staggered, the aperture of the water hole is 2-8cm, and the hole density is 100-300 pieces/m2；
2) The prepared lake and river water body treatment particles containing the silicon-calcium-magnesium minerals are uniformly scattered between two shading films, and 40-60 particles are put in each square meter of shading film.
3) The water bodies of the lakes and the rivers are treated by combining with planting of the aquatic ecological plant landscape; the aquatic ecological plant landscape is mixed planting of duckweed, water peanuts, water hyacinth, canna, water lily, cane shoots and reed.
Meanwhile, according to the scheme in the example 1, a comparative example 1 and a comparative example 2 are respectively arranged, wherein wollastonite is not contained in the comparative example 1, and magnesite is not contained in the comparative example 2.
The experimental results of test example 1 are shown in table 1;
TABLE 1 Experimental results of examples 1-5 and comparative examples 1-2
Claims (10)
1. The particles for treating the lake and river water containing the silicon, calcium and magnesium minerals are characterized by comprising the following raw materials in parts by weight: 30-50 parts of wollastonite, 20-35 parts of magnesium-containing ore, 5-10 parts of montmorillonite, 15-20 parts of fly ash, 10-20 parts of straw, 5-15 parts of polyaluminium chloride and 10-20 parts of chitosan.
2. The lake river water body treatment particle containing the minerals of calcium, calcium and magnesium, as claimed in claim 1, wherein the magnesium-containing ore is magnesite or dolomite.
3. The particle for treating the water bodies of lakes and rivers, which contains the silicon, calcium and magnesium minerals, as claimed in claim 1, wherein SiO in the wollastonite2The content is more than 35 percent, and the content of CaO is more than 30 percent.
4. The lake river water body treatment particle containing the minerals of silicon, calcium and magnesium as claimed in claim 2, wherein the MgO content in the magnesite is more than 40% or the MgO content in the dolomite is more than 20%.
5. A preparation method of lake and river water body treatment particles containing silicon, calcium and magnesium minerals is characterized by comprising the following steps:
(1) weighing the raw materials according to the lake and river water body treatment particles of any one of claims 1 to 4;
(2) crushing wollastonite, magnesium-containing ore and montmorillonite powder and sieving the crushed materials with a 100-mesh and 200-mesh sieve;
(3) mixing wollastonite powder, magnesium-containing ore powder and montmorillonite powder with fly ash, straws, polyaluminium chloride and chitosan, heating for 20-40min at the temperature of 160-180 ℃, and after cooling, carrying out secondary crushing and sieving with a 200-mesh and 300-mesh sieve for later use;
(4) adding water into the powder sieved in the step (3) until the powder is stably formed, uniformly stirring the powder, and performing wet roller granulation to obtain granular balls;
(5) and (4) calcining the granular balls in the step (4) in a high-temperature furnace at the temperature of 1000-1400 ℃ for 3-5h to obtain the lake and river water body treatment granules containing the silicon-calcium-magnesium minerals.
6. The use of the particles for treating lake and river water bodies containing Si, Ca and Mg minerals according to any one of claims 1 to 4 for treating lake and river water bodies.
7. The application of the particles for treating the water bodies of lakes and rivers, which contain the silicon, calcium and magnesium minerals, according to claim 6, is characterized by comprising the following steps:
1) laying two layers of light shielding films on the surface of a water body, wherein the light shielding films are provided with air holes, and the air holes of the two layers of light shielding films are staggered;
2) the prepared lake and river water body treatment particles containing the silicon-calcium-magnesium minerals are uniformly scattered between two shading films, and 40-60 particles are put in each square meter of shading film.
8. The application of the particles for treating lake, river and water body containing Si, Ca and Mg minerals as claimed in claim 7, wherein the pore diameter of the gas pores is 2-8cm, and the pore density is 100-2。
9. The application of the particles for treating the water bodies of lakes and rivers, which contain the silicon, calcium and magnesium minerals, according to claim 7, is characterized by further comprising the step of treating the water bodies of lakes and rivers by combining with the planting of aquatic ecological plant landscape.
10. The use of the particles for treating water bodies of lakes and rivers containing silicon, calcium and magnesium minerals as claimed in claim 9, wherein the aquatic ecological plant landscape is one or more of duckweed, water peanut, water hyacinth, canna, water lily, cane shoot and reed.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN118142501A (en) * | 2024-05-11 | 2024-06-07 | 山东高速环保科技有限公司 | Light composite sewage treatment material and preparation method thereof |
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| WO2009157681A2 (en) * | 2008-06-24 | 2009-12-30 | Lumilite Co., Ltd. | Water quality improvement composition containing eco-friendly active natural minerals and method of manufacturing the same |
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