CN110655246A - Method for reducing and removing phosphate in domestic sewage through sponge iron - Google Patents
Method for reducing and removing phosphate in domestic sewage through sponge iron Download PDFInfo
- Publication number
- CN110655246A CN110655246A CN201911127528.4A CN201911127528A CN110655246A CN 110655246 A CN110655246 A CN 110655246A CN 201911127528 A CN201911127528 A CN 201911127528A CN 110655246 A CN110655246 A CN 110655246A
- Authority
- CN
- China
- Prior art keywords
- domestic sewage
- sponge iron
- sewage
- phosphate
- flocculating agent
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 title claims abstract description 68
- 239000010865 sewage Substances 0.000 title claims abstract description 59
- 229910052742 iron Inorganic materials 0.000 title claims abstract description 34
- 238000000034 method Methods 0.000 title claims abstract description 28
- 229910019142 PO4 Inorganic materials 0.000 title claims abstract description 26
- 239000010452 phosphate Substances 0.000 title claims abstract description 26
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 title claims abstract description 25
- 238000005273 aeration Methods 0.000 claims abstract description 19
- 239000008394 flocculating agent Substances 0.000 claims abstract description 16
- 239000002351 wastewater Substances 0.000 claims abstract description 15
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 14
- 230000015556 catabolic process Effects 0.000 claims abstract description 7
- 238000006731 degradation reaction Methods 0.000 claims abstract description 7
- 238000007599 discharging Methods 0.000 claims abstract description 7
- 239000010954 inorganic particle Substances 0.000 claims abstract description 7
- 230000001678 irradiating effect Effects 0.000 claims abstract description 7
- VSCWAEJMTAWNJL-UHFFFAOYSA-K aluminium trichloride Chemical compound Cl[Al](Cl)Cl VSCWAEJMTAWNJL-UHFFFAOYSA-K 0.000 claims description 8
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 claims description 7
- RUTXIHLAWFEWGM-UHFFFAOYSA-H iron(3+) sulfate Chemical compound [Fe+3].[Fe+3].[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O RUTXIHLAWFEWGM-UHFFFAOYSA-H 0.000 claims description 7
- 229910000360 iron(III) sulfate Inorganic materials 0.000 claims description 7
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 claims description 6
- 239000002245 particle Substances 0.000 claims description 6
- 229910021578 Iron(III) chloride Inorganic materials 0.000 claims description 4
- DIZPMCHEQGEION-UHFFFAOYSA-H aluminium sulfate (anhydrous) Chemical compound [Al+3].[Al+3].[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O DIZPMCHEQGEION-UHFFFAOYSA-H 0.000 claims description 4
- RBTARNINKXHZNM-UHFFFAOYSA-K iron trichloride Chemical compound Cl[Fe](Cl)Cl RBTARNINKXHZNM-UHFFFAOYSA-K 0.000 claims description 4
- 229940037003 alum Drugs 0.000 claims description 3
- NQXWGWZJXJUMQB-UHFFFAOYSA-K iron trichloride hexahydrate Chemical compound O.O.O.O.O.O.[Cl-].Cl[Fe+]Cl NQXWGWZJXJUMQB-UHFFFAOYSA-K 0.000 claims description 3
- SURQXAFEQWPFPV-UHFFFAOYSA-L iron(2+) sulfate heptahydrate Chemical compound O.O.O.O.O.O.O.[Fe+2].[O-]S([O-])(=O)=O SURQXAFEQWPFPV-UHFFFAOYSA-L 0.000 claims description 3
- 239000004615 ingredient Substances 0.000 abstract description 4
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 16
- 239000011574 phosphorus Substances 0.000 description 16
- 229910052698 phosphorus Inorganic materials 0.000 description 16
- 238000012851 eutrophication Methods 0.000 description 3
- 241000195493 Cryptophyta Species 0.000 description 2
- 238000009388 chemical precipitation Methods 0.000 description 2
- 238000005406 washing Methods 0.000 description 2
- 241000894006 Bacteria Species 0.000 description 1
- 235000008733 Citrus aurantifolia Nutrition 0.000 description 1
- 235000011941 Tilia x europaea Nutrition 0.000 description 1
- AZDRQVAHHNSJOQ-UHFFFAOYSA-N alumane Chemical class [AlH3] AZDRQVAHHNSJOQ-UHFFFAOYSA-N 0.000 description 1
- 235000011128 aluminium sulphate Nutrition 0.000 description 1
- 239000001164 aluminium sulphate Substances 0.000 description 1
- ANBBXQWFNXMHLD-UHFFFAOYSA-N aluminum;sodium;oxygen(2-) Chemical compound [O-2].[O-2].[Na+].[Al+3] ANBBXQWFNXMHLD-UHFFFAOYSA-N 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010170 biological method Methods 0.000 description 1
- 159000000007 calcium salts Chemical class 0.000 description 1
- BUACSMWVFUNQET-UHFFFAOYSA-H dialuminum;trisulfate;hydrate Chemical compound O.[Al+3].[Al+3].[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O BUACSMWVFUNQET-UHFFFAOYSA-H 0.000 description 1
- 229960002089 ferrous chloride Drugs 0.000 description 1
- 235000003891 ferrous sulphate Nutrition 0.000 description 1
- 239000011790 ferrous sulphate Substances 0.000 description 1
- 239000010794 food waste Substances 0.000 description 1
- 150000002505 iron Chemical class 0.000 description 1
- NMCUIPGRVMDVDB-UHFFFAOYSA-L iron dichloride Chemical compound Cl[Fe]Cl NMCUIPGRVMDVDB-UHFFFAOYSA-L 0.000 description 1
- 239000004571 lime Substances 0.000 description 1
- 229910021645 metal ion Inorganic materials 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 235000015097 nutrients Nutrition 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 229910001388 sodium aluminate Inorganic materials 0.000 description 1
- 229910021653 sulphate ion Inorganic materials 0.000 description 1
- 230000004083 survival effect Effects 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
- C02F9/00—Multistage 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
- C02F1/001—Processes for the treatment of water whereby the filtration technique is of importance
-
- 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
- C02F1/30—Treatment of water, waste water, or sewage by irradiation
- C02F1/32—Treatment of water, waste water, or sewage by irradiation with ultraviolet light
-
- 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
- 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
- C02F7/00—Aeration of stretches of water
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Physical Water Treatments (AREA)
- Separation Of Suspended Particles By Flocculating Agents (AREA)
- Removal Of Specific Substances (AREA)
Abstract
The invention discloses a method for reducing and removing phosphate in domestic sewage through sponge iron, which is implemented according to the following steps: discharging domestic sewage of each household into a primary reservoir through a sewage discharge pipeline, wherein a coarse-grid filter screen is arranged at the intersection of each pipeline; the weight ratio of the ingredients is 1L: adding a flocculating agent into the wastewater according to the proportion of 35-40g of the flocculating agent to settle most suspended matters and inorganic particles in the wastewater; introducing the treated sewage into an aeration tank, and irradiating ultraviolet light into the aeration tank for 12-18 h; the treated sewage is pumped into a filter column with sponge iron inside through a water pump, so that the degradation of phosphate in the domestic sewage can be realized; the first-stage reservoir is a common reservoir, the cost of the flocculating agent, the aeration tank, the filter column and the ultraviolet light is low, the first-stage reservoir can be recycled, and the first-stage reservoir is suitable for large-scale treatment of domestic sewage.
Description
Technical Field
The invention belongs to the technical field of domestic sewage treatment processes, and particularly relates to a method for reducing phosphate in domestic sewage through sponge iron.
Background
Domestic sewage often contains a large amount of phosphorus, and discharge into a water body can cause excessive propagation of algae, cause eutrophication of the water body and deteriorate water quality. In domestic sewage, 80% of phosphorus is excreted by human bodies, and the rest is from washing wastewater and food waste residues. Wherein the phosphorus-containing washing powder is a main source of domestic phosphorus-containing sewage.
Phosphorus is a key nutrient causing eutrophication of water bodies. The eutrophication of the water body not only can cause the excessive growth of algae in the water, but also can cause the rapid reduction of the oxygen content of the water body, thereby influencing the survival of aquatic organisms such as fishes.
Common phosphorus removal methods in the prior art include: chemical precipitation method: the chemical precipitation method for removing phosphorus mainly refers to a method for removing phosphorus in wastewater by using metal ions generated by calcium salt, iron salt, aluminum salt and the like and phosphate radical to generate insoluble phosphate precipitate. Lime, aluminium sulphate, sodium aluminate, ferric chloride, ferric sulphate, ferrous sulphate and ferrous chloride are most commonly used, but the process is costly and the results are not ideal. The biological method comprises the following steps: the biological phosphorus removal is based on the principle that phosphorus-feeding bacteria absorb and release phosphorus under aerobic and anaerobic conditions, and phosphorus removal is realized by the alternate operation of the aerobic and anaerobic conditions. The method can remove up to 90 percent of phosphorus in the wastewater under proper conditions. However, generally speaking, the biological phosphorus removal process has poor operation stability and strong dependence, and when the content of organic matters in the wastewater is low or the phosphorus content exceeds 0mg/L, the effluent hardly meets the discharge standard of phosphorus, so that secondary phosphorus removal treatment is often required for the effluent.
Disclosure of Invention
The invention aims to provide a method for removing phosphate in domestic sewage through sponge iron, which can reduce the cost for removing the phosphate in the domestic sewage.
The technical scheme adopted by the invention is as follows: a method for reducing phosphate in domestic sewage through sponge iron is implemented according to the following steps:
step 1, discharging domestic sewage of each household into a primary reservoir through a sewage discharge pipeline, wherein a coarse-grid filter screen is arranged at the intersection of each pipeline;
step 2, adding 1L of: adding a flocculating agent into the wastewater according to the proportion of 35-40g of the flocculating agent to settle most suspended matters and inorganic particles in the wastewater;
step 3, introducing the sewage treated in the step 2 into an aeration tank, and irradiating ultraviolet light into the aeration tank for 12-18 hours;
and 4, introducing the sewage treated in the step 3 into a filter column with sponge iron arranged inside through a water pump, so as to realize the degradation of phosphate in the domestic sewage.
The invention is also characterized in that:
step 1, the grid specification of the coarse grid filter screen is 1-3cm x 1-3 cm.
Step 2, the flocculating agent is aluminum sulfate, aluminum chloride, ferric sulfate, ferric chloride, alum and FeCl3.6H2O, FeSO4.7H2O andone or more of ferric sulfate, polyaluminum chloride, polyaluminum sulfate, polyferric chloride and polyferric sulfate are mixed in any ratio.
The wavelength of the ultraviolet lamp light irradiated in the step 3 is 200-280 nm.
And 4, the height of the filter column is 2-3m, the inner diameter of the filter column is 0.5-1m, the height of the sponge iron is 1.5-1.8m, and the particle size of the sponge iron is 1-3 mm.
The invention has the beneficial effects that:
the method for removing phosphate in domestic sewage through sponge iron is characterized in that a first-stage reservoir is a common reservoir, the cost of a flocculating agent, an aeration tank, a filter column and ultraviolet light is low, the flocculating agent, the aeration tank, the filter column and the ultraviolet light can be recycled, and the method is suitable for large-scale treatment of the domestic sewage.
Detailed Description
The present invention will be described in detail with reference to the following embodiments.
The invention relates to a method for reducing and removing phosphate in domestic sewage through sponge iron, which is implemented according to the following steps:
step 1, discharging domestic sewage of each household into a primary reservoir through a sewage discharge pipeline, wherein a coarse-grid filter screen is arranged at the intersection of each pipeline; the mesh specification of the coarse mesh filter screen is 1-3cm x 1-3 cm;
step 2, adding 1L of: adding a flocculating agent into the wastewater according to the proportion of 35-40g of the flocculating agent to settle most suspended matters and inorganic particles in the wastewater;
the flocculating agent is aluminum sulfate, aluminum chloride, ferric sulfate, ferric chloride, alum and FeCl3.6H2O, FeSO4.7H2O and one or more of ferric sulfate, polyaluminium chloride, polyaluminium sulfate, polyferric chloride and polyferric sulfate in any ratio.
Step 3, introducing the sewage treated in the step 2 into an aeration tank, and irradiating ultraviolet light into the aeration tank for 12-18 hours; the wavelength of the ultraviolet lamp light is 200 and 280 nm;
step 4, introducing the treated sewage into a filter column with sponge iron inside through a water pump, so as to realize the degradation of phosphate in the domestic sewage; the height of the filter column is 2-3m, the inner diameter of the filter column is 0.5-1m, the height of the sponge iron is 1.5-1.8m, and the particle size of the sponge iron is 1-3 mm.
Example 1
A method for reducing phosphate in domestic sewage through sponge iron is implemented according to the following steps: discharging domestic sewage of each household into a primary reservoir through a sewage discharge pipeline, wherein a coarse-grid filter screen is arranged at the intersection of each pipeline; the grid specification of the coarse grid filter screen is 1cm by 1 cm; the weight ratio of the ingredients is 1L: adding aluminum sulfate into 35g of flocculant to settle most suspended matters and inorganic particles in the wastewater; introducing the treated sewage into an aeration tank, and irradiating ultraviolet light into the aeration tank for 12 hours; the wavelength of the ultraviolet lamp light is 200 nm; the treated sewage is pumped into a filter column with sponge iron inside through a water pump, so that the degradation of phosphate in the domestic sewage can be realized; the height of the filter column is 2m, the inner diameter of the filter column is 0.5m, the height of the sponge iron is 1.5m, and the particle size of the sponge iron is 1 mm.
Example 2
A method for reducing phosphate in domestic sewage through sponge iron is implemented according to the following steps: discharging domestic sewage of each household into a primary reservoir through a sewage discharge pipeline, wherein a coarse-grid filter screen is arranged at the intersection of each pipeline; the grid specification of the coarse grid filter screen is 2cm by 2 cm; the weight ratio of the ingredients is 1L: adding a mixture of aluminum chloride and ferric sulfate in a mass ratio of 1:1 into 37g of flocculant to serve as the flocculant, so that most suspended matters and inorganic particles in the wastewater are settled; introducing the treated sewage into an aeration tank, and irradiating ultraviolet light for 15 hours in the aeration tank; the wavelength of the ultraviolet lamp light is 240 nm; the treated sewage is pumped into a filter column with sponge iron inside through a water pump, so that the degradation of phosphate in the domestic sewage can be realized; the height of the filter column is 2.5m, the inner diameter of the filter column is 0.8m, the height of the sponge iron is 1.7m, and the particle size of the sponge iron is 2 mm.
Example 3
A method for reducing phosphate in domestic sewage through sponge iron is implemented according to the following steps: discharging domestic sewage of each household into a primary reservoir through a sewage discharge pipeline, wherein a coarse-grid filter screen is arranged at the intersection of each pipeline; the grid specification of the coarse grid filter screen is 3cm by 3 cm;the weight ratio of the ingredients is 1L: FeCl is added into 40g of flocculant3.6H2And O, settling most suspended matters and inorganic particles in the wastewater. Introducing the treated sewage into an aeration tank, and irradiating ultraviolet light into the aeration tank for 18 hours; the wavelength of the ultraviolet lamp light is 280 nm; the treated sewage is pumped into a filter column with sponge iron inside through a water pump, so that the degradation of phosphate in the domestic sewage can be realized; the height of the filter column is 3m, the inner diameter of the filter column is 1m, the height of the sponge iron is 1.8m, and the particle size of the sponge iron is 3 mm.
Through the mode, the method for removing phosphate in domestic sewage through sponge iron, disclosed by the invention, has the advantages that the primary reservoir is a common reservoir, the cost of the flocculating agent, the aeration tank, the filter column and the ultraviolet lamp light is low, the flocculating agent, the aeration tank, the filter column and the ultraviolet lamp light can be recycled, and the method is suitable for large-scale treatment of the domestic sewage.
Claims (5)
1. A method for reducing phosphate in domestic sewage through sponge iron is characterized by comprising the following steps:
step 1, discharging domestic sewage of each household into a primary reservoir through a sewage discharge pipeline, wherein a coarse-grid filter screen is arranged at the intersection of each pipeline;
step 2, adding 1L of: adding a flocculating agent into the wastewater according to the proportion of 35-40g of the flocculating agent to settle most suspended matters and inorganic particles in the wastewater;
step 3, introducing the sewage treated in the step 2 into an aeration tank, and irradiating ultraviolet light into the aeration tank for 12-18 hours;
and 4, introducing the sewage treated in the step 3 into a filter column with sponge iron arranged inside through a water pump, so as to realize the degradation of phosphate in the domestic sewage.
2. The method for removing phosphate from domestic sewage by using sponge iron as claimed in claim 1, wherein the mesh size of said coarse mesh sieve in step 1 is 1-3cm x 1-3 cm.
3. The method of claim 1, wherein the phosphate in the domestic sewage is reduced by using sponge ironThe method is characterized in that the flocculating agent in the step 2 is aluminum sulfate, aluminum chloride, ferric sulfate, ferric chloride, alum and FeCl3.6H2O, FeSO4.7H2O and one or more of ferric sulfate, polyaluminium chloride, polyaluminium sulfate, polyferric chloride and polyferric sulfate in any ratio.
4. The method as claimed in claim 1, wherein the irradiation wavelength of the UV light in step 3 is 200-280 nm.
5. The method for removing phosphate in domestic sewage through sponge iron as claimed in claim 1, wherein step 4, the height of the filter column is 2-3m, the inner diameter of the filter column is 0.5-1m, the height of the sponge iron is 1.5-1.8m, and the particle size of the sponge iron is 1-3 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911127528.4A CN110655246A (en) | 2019-11-18 | 2019-11-18 | Method for reducing and removing phosphate in domestic sewage through sponge iron |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911127528.4A CN110655246A (en) | 2019-11-18 | 2019-11-18 | Method for reducing and removing phosphate in domestic sewage through sponge iron |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110655246A true CN110655246A (en) | 2020-01-07 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911127528.4A Withdrawn CN110655246A (en) | 2019-11-18 | 2019-11-18 | Method for reducing and removing phosphate in domestic sewage through sponge iron |
Country Status (1)
| Country | Link |
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| CN (1) | CN110655246A (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB191406855A (en) * | 1914-03-18 | 1915-03-18 | Lucien Linden | Improvements in the Sterilisation, Filtration and similar Treatment of Liquids. |
| KR20020078005A (en) * | 2001-04-04 | 2002-10-18 | 김동석 | Small-Scale Waste Treatment Apparatus |
| JP2007268338A (en) * | 2006-03-30 | 2007-10-18 | Green Japan:Kk | Method for removing phosphorus included underwater |
| CN101318723A (en) * | 2008-07-15 | 2008-12-10 | 陈俊敏 | Artificial rapid infiltration pool and uses thereof |
| CN203319820U (en) * | 2013-04-27 | 2013-12-04 | 山东鼎信石化新能源科技运营股份有限公司 | Manually high-efficiency fast sewage infiltration treatment system |
| CN106186594A (en) * | 2016-09-21 | 2016-12-07 | 东莞市联洲知识产权运营管理有限公司 | The processing method of one way of life waste water high-efficiency denitrogenation dephosphorizing |
| CN106311161A (en) * | 2016-09-22 | 2017-01-11 | 东莞市联洲知识产权运营管理有限公司 | Efficient treatment method of phosphorus wastewater |
| CN107445396A (en) * | 2017-08-19 | 2017-12-08 | 陈佳露 | A kind of smart city sewage disposal device |
-
2019
- 2019-11-18 CN CN201911127528.4A patent/CN110655246A/en not_active Withdrawn
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB191406855A (en) * | 1914-03-18 | 1915-03-18 | Lucien Linden | Improvements in the Sterilisation, Filtration and similar Treatment of Liquids. |
| KR20020078005A (en) * | 2001-04-04 | 2002-10-18 | 김동석 | Small-Scale Waste Treatment Apparatus |
| JP2007268338A (en) * | 2006-03-30 | 2007-10-18 | Green Japan:Kk | Method for removing phosphorus included underwater |
| CN101318723A (en) * | 2008-07-15 | 2008-12-10 | 陈俊敏 | Artificial rapid infiltration pool and uses thereof |
| CN203319820U (en) * | 2013-04-27 | 2013-12-04 | 山东鼎信石化新能源科技运营股份有限公司 | Manually high-efficiency fast sewage infiltration treatment system |
| CN106186594A (en) * | 2016-09-21 | 2016-12-07 | 东莞市联洲知识产权运营管理有限公司 | The processing method of one way of life waste water high-efficiency denitrogenation dephosphorizing |
| CN106311161A (en) * | 2016-09-22 | 2017-01-11 | 东莞市联洲知识产权运营管理有限公司 | Efficient treatment method of phosphorus wastewater |
| CN107445396A (en) * | 2017-08-19 | 2017-12-08 | 陈佳露 | A kind of smart city sewage disposal device |
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| Title |
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| RUI XUE等: "Study of phosphorus removal by using sponge iron adsorption", 《WATER AIR SOIL POLLUT》 * |
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