CN111039414B - Biological purification system - Google Patents
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- CN111039414B CN111039414B CN201811247925.0A CN201811247925A CN111039414B CN 111039414 B CN111039414 B CN 111039414B CN 201811247925 A CN201811247925 A CN 201811247925A CN 111039414 B CN111039414 B CN 111039414B
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- 238000000746 purification Methods 0.000 title claims abstract description 46
- 239000000463 material Substances 0.000 claims abstract description 48
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 45
- 238000011065 in-situ storage Methods 0.000 claims abstract description 30
- 239000004744 fabric Substances 0.000 claims abstract description 23
- 239000000835 fiber Substances 0.000 claims abstract description 21
- 230000004913 activation Effects 0.000 claims abstract description 19
- 239000010445 mica Substances 0.000 claims abstract description 14
- 229910052618 mica group Inorganic materials 0.000 claims abstract description 14
- 239000000843 powder Substances 0.000 claims abstract description 14
- 235000012239 silicon dioxide Nutrition 0.000 claims abstract description 6
- 229910001220 stainless steel Inorganic materials 0.000 claims abstract description 6
- 239000010935 stainless steel Substances 0.000 claims abstract description 6
- 239000000203 mixture Substances 0.000 claims abstract description 4
- RMAQACBXLXPBSY-UHFFFAOYSA-N silicic acid Chemical compound O[Si](O)(O)O RMAQACBXLXPBSY-UHFFFAOYSA-N 0.000 claims abstract description 4
- 239000005543 nano-size silicon particle Substances 0.000 claims abstract description 3
- 238000005273 aeration Methods 0.000 claims description 11
- 230000003213 activating effect Effects 0.000 claims description 10
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- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 3
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 claims description 3
- 239000011575 calcium Substances 0.000 claims description 3
- 229910052791 calcium Inorganic materials 0.000 claims description 3
- 229910052799 carbon Inorganic materials 0.000 claims description 3
- 239000011777 magnesium Substances 0.000 claims description 3
- 229910052749 magnesium Inorganic materials 0.000 claims description 3
- 229910052710 silicon Inorganic materials 0.000 claims description 3
- 239000010703 silicon Substances 0.000 claims description 3
- 229910052712 strontium Inorganic materials 0.000 claims description 3
- CIOAGBVUUVVLOB-UHFFFAOYSA-N strontium atom Chemical compound [Sr] CIOAGBVUUVVLOB-UHFFFAOYSA-N 0.000 claims description 3
- 239000013049 sediment Substances 0.000 claims description 2
- 239000011149 active material Substances 0.000 claims 1
- 238000009434 installation Methods 0.000 abstract description 2
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- 239000010865 sewage Substances 0.000 description 31
- 230000000694 effects Effects 0.000 description 14
- 239000000377 silicon dioxide Substances 0.000 description 13
- 238000000034 method Methods 0.000 description 11
- XKMRRTOUMJRJIA-UHFFFAOYSA-N ammonia nh3 Chemical compound N.N XKMRRTOUMJRJIA-UHFFFAOYSA-N 0.000 description 9
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 9
- 229910052760 oxygen Inorganic materials 0.000 description 9
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- 241000196324 Embryophyta Species 0.000 description 7
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- 238000001914 filtration Methods 0.000 description 5
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- 235000015097 nutrients Nutrition 0.000 description 5
- 230000008569 process Effects 0.000 description 5
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 3
- 230000009471 action Effects 0.000 description 3
- 229910052757 nitrogen Inorganic materials 0.000 description 3
- 229910052698 phosphorus Inorganic materials 0.000 description 3
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- 239000010802 sludge Substances 0.000 description 3
- 238000001179 sorption measurement Methods 0.000 description 3
- 239000010963 304 stainless steel Substances 0.000 description 2
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 2
- 241000894006 Bacteria Species 0.000 description 2
- 241000238631 Hexapoda Species 0.000 description 2
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- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- 229910000589 SAE 304 stainless steel Inorganic materials 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 235000016709 nutrition Nutrition 0.000 description 2
- 230000035764 nutrition Effects 0.000 description 2
- 239000005416 organic matter Substances 0.000 description 2
- 239000002957 persistent organic pollutant Substances 0.000 description 2
- 239000010902 straw Substances 0.000 description 2
- 239000002351 wastewater Substances 0.000 description 2
- 241000186361 Actinobacteria <class> Species 0.000 description 1
- 241000251468 Actinopterygii Species 0.000 description 1
- 241000143060 Americamysis bahia Species 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 1
- 239000005909 Kieselgur Substances 0.000 description 1
- 241001465754 Metazoa Species 0.000 description 1
- FWLDLPLBLLYROD-UHFFFAOYSA-N N.[N].[O] Chemical compound N.[N].[O] FWLDLPLBLLYROD-UHFFFAOYSA-N 0.000 description 1
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 description 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- 241001148470 aerobic bacillus Species 0.000 description 1
- 230000005791 algae growth Effects 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 229910021529 ammonia Inorganic materials 0.000 description 1
- 238000009360 aquaculture Methods 0.000 description 1
- 244000144974 aquaculture Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 239000000969 carrier Substances 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
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- 238000012851 eutrophication Methods 0.000 description 1
- 230000012010 growth Effects 0.000 description 1
- 238000002513 implantation Methods 0.000 description 1
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- 229910052742 iron Inorganic materials 0.000 description 1
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- 238000011160 research Methods 0.000 description 1
- 238000002791 soaking Methods 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
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- 229910052717 sulfur Inorganic materials 0.000 description 1
- 239000011593 sulfur Substances 0.000 description 1
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- 239000011573 trace mineral Substances 0.000 description 1
- 235000013619 trace mineral Nutrition 0.000 description 1
- 241001148471 unidentified anaerobic bacterium Species 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
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/34—Biological treatment of water, waste water, or sewage characterised by the microorganisms used
-
- 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
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/007—Contaminated open waterways, rivers, lakes or ponds
Abstract
The invention discloses a biological purification system, which comprises at least two layers of filter frames and filter cloth positioned on each layer of filter frame, wherein two or more layers of filter cloth are fixed on the filter frames after being externally fixed with stainless steel meshes with certain strength or latticed materials made of other materials, an in-situ microecological activation material is filled between the two layers of filter cloth, and the in-situ microecological activation material is selected from one or a mixture of more of fermented fibers, nano silicon dioxide, superfine multilayer mica powder, monosilicic acid and superfine diatomite. The biological purification system has low cost and convenient installation and maintenance.
Description
Technical Field
The invention relates to the technical field of water body purification, in particular to a biological purification system.
Background
With the rapid development of national economy, sewage collection and treatment facilities are seriously lagged, so that a large amount of sewage is directly introduced into a river, and the water quality standards of most rivers and lakes can not meet the requirement of examination at present, so that measures need to be taken for treatment.
At the present stage, water body purification mainly adopts two modes, one mode is an aeration biological filter; the other is a biological floating island.
An aeration biological filter pool, called BAF for short, is a novel sewage treatment process by a biomembrane method developed in Europe and America at the end of the 80 s, is greatly developed in the early 90 s, has the maximum scale of dozens of thousands of tons per day, and can be developed into a process capable of removing nitrogen and phosphorus. The process has the effects of removing SS, COD, BOD, nitrification, denitrification, dephosphorization and removing AOX (harmful substances). The aeration biological filter tank is a new process integrating biological oxidation and suspended solid interception. Compared with the common activated sludge method, the biological aerated filter has the advantages of high organic load, small occupied area (1/3 of the common activated sludge method), less investment (30 percent saved), no sludge expansion, high oxygen transmission efficiency, good effluent quality and the like, but has a strict requirement on inlet water SS (generally requiring SS to be less than or equal to 100mg/L, preferably less than or equal to 60mg/L), so that the inlet water needs to be pretreated.
The biological floating island is also called artificial floating island and ecological floating bed (ecological floating island). The method is characterized in that an efficient artificial ecosystem is established by taking aquatic plants as a main body, applying the technical principle of soilless culture, taking high polymer materials and the like as carriers and matrixes and applying the principle of intergrowth relationship among species and full utilization of a water space ecological niche and a nutrition ecological niche so as to reduce the pollution load in the water body. Namely: the method comprises the steps of splicing, combining and building a special light biological carrier into a required area or geometric shape according to different design requirements, putting the special light biological carrier into a damaged water body, planting screened and domesticated aquatic (terrestrial) plants with strong functions of absorbing organic pollutants in water into a prefabricated floating carrier planting tank, enabling the plants to grow in an environment similar to soilless culture, enabling plant root systems to naturally extend and suspend in the water body, adsorbing and absorbing organic pollutants such as ammonia, nitrogen, phosphorus and the like in the water, providing survival and attachment conditions for fishes, shrimps, insects and microorganisms in the water body, and releasing compounds for inhibiting algae growth. Under the combined action of plants, animals, insects and microorganisms, the environmental water quality is purified, and the purpose of restoring and rebuilding a water body ecological system is achieved. The method has the following defects: the sewage discharged from the water outlets around the water body (including domestic sewage discharge outlets, rainwater discharge outlets carrying pollutants and industrial sewage discharge outlets without sewage interception) cannot be directly and timely treated, and particularly, after a large amount of sewage enters the water body after a large amount of sewage is discharged and rainstorm rain, the water body is still inevitably polluted. Biological floating islands can only be used to remediate bodies of water with relatively low pollution indices.
Disclosure of Invention
In order to solve the problem that the water body needs to be pretreated or only can be used for restoring the water body with relatively low pollution index in the existing water body purification mode, the invention aims to provide a biological purification system.
In order to achieve the purpose, the invention adopts the following technical scheme: a biological purification system comprises at least two layers of filter frames and filter cloth positioned on each layer of filter frame, wherein an in-situ microecological activation material is filled between the two layers of filter cloth, and the in-situ microecological activation material is selected from one or a mixture of more of fermentation fibers, nano silicon dioxide, superfine multilayer mica powder, monosilicic acid and superfine diatomite.
The fermented fiber is prepared by deeply fermenting the straws, and the fermented fiber is used in a large amount, so that the problem that the straws are not burnt by government is solved, and the energy is saved and the consumption is reduced.
The in-situ micro-ecological activating material adopts a superfine structure, has large specific surface area and good adsorption effect, and improves the sewage purification efficiency.
The in-situ micro-ecological activating material provides nutrient substances and trace elements necessary for the growth of microorganisms, such as carbon sources, magnesium, calcium, strontium, silicon, sulfur, iron, nickel, copper and the like, while the domestic and aquaculture sewage pollutants are rich in nitrogen, phosphorus, sodium, potassium and the like required by the microorganisms, and when the eutrophication condition of the water body is formed, the microorganisms and the in-situ micro-ecological activating material act to form a biological filter membrane, so that the biological filter membrane has the effects of adsorption and filtration.
Wherein, the in-situ micro-ecological activation material contains 1 to 70 percent of silicon, 1 to 40 percent of carbon, 1 to 20 percent of calcium, 0.1 to 10 percent of magnesium and 0.1 to 2 percent of strontium.
When the adsorbed organic matters are enriched, microorganisms in the environment can be quickly activated, and the microorganisms absorb nutrient substances in the in-situ micro-ecological activation material, quickly grow and decompose the organic matters; and when the organic matter is insufficient, the microorganisms enter a dormant state and wait for the next activation.
The biological purification system has multiple effects of adsorbing, filtering and decomposing organic matters.
Preferably, the biological purification system further comprises a plate frame, and the filter frame is embedded in the plate frame.
A large amount of microorganisms exist in the riverbed bottom mud, so that the purification capacity of the biological purification system is improved.
Wherein, be provided with aeration equipment in the biological purification system, aeration equipment is located the sheet frame outside.
The aeration device is used for aeration and oxygenation, and simultaneously, the uniformity of the water body is improved.
Wherein the filter cloth is selected from non-woven fabrics, chemical fibers or stainless steel ultra-filter screens. The two or more layers of filter cloth are fixed on the filter frame after being externally fixed by stainless steel nets with certain strength or latticed materials made of other materials.
Preferably, a biological floating island is further arranged in the biological purification system, and the biological floating island is positioned in the plate frame.
Preferably, the plate frame is provided with a plurality of bio-bags, and the bio-bags are filled with in-situ microorganism activating materials.
The biological bag is an excellent carrier for microbe enrichment and slow release, and ensures that microbes cannot lose microbes due to the flowing of the river water body, the microbial purification capacity is ensured, even after flood drainage, the microbial purification capacity in the river still exists, and the in-situ microbial activation material in the biological filter frame and the biological bag can automatically activate the microbes in the water body, so that the establishment of microbial ecological balance is promoted.
The in-situ microorganism activating materials between the filter cloth and in the biological bags can provide nutrient substances to microorganisms in the water supply environment, including bacteria, actinomycetes, prokaryotes and the like, so that the microorganisms can be rapidly propagated, the in-situ treatment of pollutants can be realized through the aerobic denitrification of the microorganisms and the establishment of a high-efficiency food chain, the ecological system can be restored, and the self-cleaning capability of the water body can be restored.
The biological purification system of the invention utilizes the microorganisms in the environment to purify the sewage, when the water body is rich in organic matters, the microorganisms are activated, the microorganisms rapidly grow under the action of nutrient substances provided by in-situ microorganism activation materials, adsorb, filter and decompose the organic matters in the sewage, and treat the sewage on site, the organic matters in the water body are poor, and the microorganisms are in a dormant state at the moment and wait for the next activation.
The biological purification system is activated in situ according to the water body condition, and only the plate frame and/or the biological bag needs to be integrally replaced after the biological purification system is used for a period of time, so that the biological purification system is convenient to replace.
Compared with the prior art, the invention has the following beneficial effects: the biological purification system has low cost and convenient installation and maintenance; the biological purification system activates microorganisms in the water body through the in-situ microorganism activation materials between the filter cloth and in the biological bags to establish a micro-ecological balance system, and the in-situ microorganism activation materials and the microorganisms in the water body form a biological filter membrane, so that the biological purification system has multiple effects of adsorbing, filtering and decomposing organic matters and has a good purification effect.
Detailed Description
The existing biological purification system needs frequent replacement of a biological membrane so as to obtain better filtering effect; or active mud is injected into the biological pond, organic matters are decomposed through the active mud, but the active mud needs to be replaced frequently, and the operation is complex. The inventor finds that through long-term experimental research, the plate frame is arranged, the filter frame is embedded in the plate frame, the filter cloth is arranged in the filter frame, an in-situ microorganism activating material for providing nutrition for microorganisms is filled between every two filter cloths, when organic matter-rich sewage is discharged into the plate frame, the microorganisms in the environment are activated and rapidly grow under the action of the in-situ microorganism activating material to form a biological filter membrane, and the biological filter membrane has adsorption and filtration effects; when the sewage without organic matters is discharged into the plate frame, the microorganisms enter a dormant state to wait for being activated next time. The in-situ microbial activation material needs to be replaced after being absorbed by microbes for a long time and repeatedly, only the plate frame and/or the biological bag needs to be replaced integrally at the moment, and the replacement process is simple, convenient and quick.
The utility model provides a biological purification system, includes at least two layers of sheet frames, the filter frame is established to the sheet frame embeds, be located and set up the filter cloth on every layer of filter frame, sewage flows in from one side of filter frame, the opposite side flows, in order to increase the filter effect, connect the riverbed bed sediment with the bottom of sheet frame, the filter cloth is selected from non-woven fabrics, chemical fiber or stainless steel ultra filter screen, it has the little ecological activation material of normal position to fill between two layers of filter cloth, the little ecological activation material of normal position is selected from the fermentation fibre, nano silica, superfine multilayer mica powder, monosilicic acid, the mixture of one or more in the superfine diatomaceous earth. The two or more layers of filter cloth are fixed on the filter frame after being externally fixed by stainless steel nets with certain strength or latticed materials made of other materials.
When the amount of the discharged sewage is large, strains can be put into the plate frame, so that the three-dimensional implantation and propagation of aerobic, facultative and anaerobic bacteria are realized, and pollutants can be rapidly decomposed.
An aeration device is arranged in the biological purification system and is positioned outside the plate frame. The aeration device can aerate and supply oxygen to provide an oxygen-enriched environment for aerobic bacteria, accelerate sewage flow and improve the uniformity of sewage.
The biological purification system is also provided with a biological floating island which is positioned in the plate frame. The biological floating island bears aquatic plants, the ornamental value of the aquatic plants is enhanced, and meanwhile, microorganisms are assisted to absorb and purify pollutants in a water body.
In order to increase the sewage purification speed, a plurality of biological bags are arranged on the plate frame, and in-situ microorganism activating materials are filled in the biological bags. After a period of time, the in-situ microorganism activating material in the biological bag is completely consumed, and the biological bag needs to be replaced, so that the operation is convenient and quick.
When the device is used, the plate frame is arranged at the sewage outlet, the in-situ micro-ecological activated material in the plate frame and on the plate frame provides nutrient components for microorganisms in the environment, the microorganisms grow rapidly, the microorganisms and the in-situ micro-ecological activated material form a biological filter membrane, and pollutants are adsorbed, filtered and decomposed to achieve the aim of purifying sewage.
Application example 1
200 kg of domestic sewage with the pH value of 7.8, the dissolved oxygen index of 1.6mg/L, the ammonia nitrogen index of 8mg/L and the total P index of 0.6mg/L, CODCr55 of 78mg/L is taken. A double-layer filter frame with the square meter of 0.1 is prepared by using a national standard non-woven fabric of 500g as filter cloth and a 10-mesh national standard 304 stainless steel net as filter cloth fixing material, and the following materials are respectively selected as in-situ micro-ecological activation materials and are arranged between the filter cloth. The domestic sewage flows in from one side of the filter frame at the flow speed of 2 kilograms per minute, flows out from the other side, and is detected on the outflow side, and the selected materials and the detection result are shown in table 1.
TABLE 1
| Waste water | pH | Dissolved oxygen/(mg/L) | Ammonia nitrogen/(mg/L) | Total P/(mg/L) | CODCr/(mg/L) | |
| 7.8 | 1.6 | 8 | 0.6 | 78 | ||
| Material | pH | Dissolved oxygen (mg/L) | Ammonia nitrogen (mg/L) | Total P (mg/L) | CODCr(mg/L) | |
| 1 | 100 nm silica | 7.6 | 1.9 | 3.0 | 0.52 | 39 |
| 2 | 1000 mesh silica | 7.7 | 1.9 | 4.0 | 0.53 | 52 |
| 3 | 10-20 mesh fermented fiber | 7.8 | 1.9 | 6.0 | 0.57 | 66 |
| 4 | 40-60 mesh fermented fiber | 7.8 | 1.9 | 5.7 | 0.54 | 62 |
| 5 | 450-600 mesh diatomite | 7.7 | 1.9 | 4.2 | 0.4 | 45 |
| 6 | 800-1000 mesh diatomite | 7.7 | 1.9 | 4.1 | 0.39 | 44 |
| 7 | 450-600 mesh multilayer mica powder | 7.9 | 1.9 | 4.1 | 0.37 | 43 |
| 8 | 800-1000-mesh multilayer mica powder | 7.9 | 1.9 | 4.0 | 0.36 | 43 |
| 9 | Mixed Material 1 | 7.8 | 1.9 | 3.6 | 0.34 | 39 |
| 10 | Mixed Material 2 | 7.7 | 1.9 | 2.9 | 0.29 | 28 |
Wherein the mixed material 1 comprises 20 percent of 100 nanometer silica, 10 percent of 40-60 mesh fermented fiber, 30 percent of 450-mesh 600-mesh diatomite and 40 percent of 450-mesh 600-mesh multilayer mica powder, and the mixed material 2 comprises 40 percent of 100 nanometer silica, 10 percent of 40-60-mesh fermented fiber, 30 percent of 450-mesh 600-mesh diatomite and 20 percent of 450-mesh 600-mesh multilayer mica powder.
As can be seen from Table 1, when 100 nm silica, 1000 mesh silica, 10-20 mesh fermented fiber, 40-60 mesh fermented fiber, 450-600 mesh diatomite, 800-1000 mesh diatomite, 450-600 mesh multilayer mica powder and 800-1000 mesh multilayer mica powder are used independently, ammonia nitrogen, total P and COD in sewage can be reducedCrWherein the effect of 100 nanometer silicon dioxide is better than that of 1000 mesh silicon dioxide, the effect of 40-60 mesh fermentation fiber is better than that of 10-20 mesh fermentation fiber, and when the nanometer silicon dioxide, the 40-60 mesh fermentation fiber, 450-600 mesh diatomite and 450-600 mesh multilayer mica powder are mixed by 40%: 10%: 30%: when 20 percent of the components are used together, the treatment effect is best, the ammonia nitrogen in the sewage is reduced to 2.9mg/L from 8mg/L, the total P is reduced to 0.29mg/L from 0.6mg/L, and the COD isCrThe concentration is reduced from 78mg/L to 28 mg/L.
Application example 2
A biological purification system is prepared by using a national standard 500g non-woven fabric as filter cloth and a 10-mesh national standard 304 stainless steel net as filter cloth fixing materials to prepare a double-layer filter frame with the square meter of 0.1, and respectively selecting the following materials as in-situ micro-ecological activation materials to be arranged between the filter cloth. Diluting domestic sewage with the pH value of 7.8, the dissolved oxygen index of 1.6mg/L, the ammonia nitrogen index of 8mg/L and the total P index of 0.6mg/L, CODCr55 of 78mg/L by one time, respectively soaking the biological purification system for 48 hours, and taking out for later use. 10 kg of domestic sewage with the pH value of 7.9, the dissolved oxygen index of 1.5mg/L, the ammonia nitrogen index of 9mg/L and the total P index of 0.7mg/L, CODCr55 of 67mg/L is taken to flow into the biological purification system at the flow rate of 2 kg/minute, and the outflow side is detected, wherein the detection results are shown in Table 2.
TABLE 2
| Waste water | pH | Dissolved oxygen/(mg/L) | Ammonia nitrogen/(mg/L) | Total P/(mg/L) | CODCr/(mg/L) | |
| 7.9 | 1.5 | 9 | 0.7 | 67 | ||
| Material | pH | Dissolved oxygen | Ammonia nitrogen | Total P | CODCr | |
| 1 | 100 nm silica | 7.7 | 2.0 | 1.4 | 0.43 | 26 |
| 2 | 1000 mesh silica | 7.7 | 2.0 | 2.2 | 0.43 | 35 |
| 3 | 10-20 mesh fermented fiber | 7.9 | 1.9 | 2.5 | 0.45 | 37 |
| 4 | 40-60 mesh fermented fiber | 7.9 | 1.9 | 1.5 | 0.43 | 27 |
| 5 | 450-600 mesh diatomite | 7.7 | 1.9 | 1.2 | 0.32 | 23 |
| 6 | 800-1000 mesh diatomite | 7.7 | 1.9 | 1.1 | 0.32 | 22 |
| 7 | 450-600 mesh multilayer mica powder | 7.9 | 1.9 | 1.1 | 0.26 | 19 |
| 8 | 800-1000-mesh multilayer mica powder | 7.9 | 1.9 | 1.0 | 0.24 | 17 |
| 9 | Mixed Material 1 | 7.8 | 1.9 | 0.7 | 0.17 | 9 |
| 10 | Mixed material 2 | 7.8 | 2.0 | 0.3 | 0.16 | 5 |
As can be seen from Table 2, the biological purification system after being soaked in the sewage still has the water purification function, and the effect of recycling the biological purification system of the invention is reflected. Wherein 100 percent of nano-silica, 40-60 meshes of fermentation fiber, 450-mesh 600-mesh diatomite and 450-mesh 600-mesh multilayer mica powder are mixed by 40 percent: 10%: 30%: when 20 percent of the components are used together, the treatment effect is best, the ammonia nitrogen in the sewage is reduced to 0.3mg/L from 9mg/L, the total P is reduced to 0.16mg/L from 0.7mg/L, and the COD is highCrThe concentration is reduced from 67mg/L to 5 mg/L.
The foregoing detailed description is given by way of example only, to better enable one of ordinary skill in the art to understand the patent, and is not to be construed as limiting the scope of what is encompassed by the patent; any equivalent alterations or modifications made according to the spirit of the disclosure of this patent are intended to be included in the scope of this patent.
Claims (7)
1. A biological purification system is characterized by comprising at least two filter frames and filter cloth positioned on each filter frame, wherein an in-situ microecological activation material is filled between the two filter cloth layers, and the in-situ microecological activation material is selected from one or a mixture of more of fermented fibers, nano silicon dioxide, superfine multilayer mica powder, monosilicic acid and superfine diatomite;
the in-situ micro-ecological activating material contains 1-70% of silicon, 1-40% of carbon, 1-20% of calcium, 0.1-10% of magnesium and 0.1-2% of strontium.
2. The biological purification system of claim 1, further comprising a plate frame, wherein the filter frame is embedded in the plate frame.
3. The biological purification system as claimed in claim 1, wherein the filter cloth is selected from a non-woven fabric, a chemical fiber or a stainless steel ultra-filter screen.
4. The biological purification system of claim 1, further comprising a bio-floating island disposed within the filter frame.
5. The biological purification system as recited in claim 2 wherein the plate frame is located in the riverbed sediment.
6. The biological purification system as recited in claim 5, wherein an aeration device is provided in the biological purification system, the aeration device being located outside the panel frame.
7. The biological purification system as claimed in claim 5, wherein the panel frame is provided with a plurality of bio-bags filled with in-situ micro-ecologically active material.
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Denomination of invention: A Biological Purification System Effective date of registration: 20231010 Granted publication date: 20220701 Pledgee: Shanghai Rural Commercial Bank Co.,Ltd. Songjiang sub branch Pledgor: SHANGHAI THAIYN BIO-TECH CO.,LTD. Registration number: Y2023310000636 |