CN105036297A - Biological treatment method and device for lowering sewage nitrogen and phosphorus content - Google Patents
Biological treatment method and device for lowering sewage nitrogen and phosphorus content Download PDFInfo
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- CN105036297A CN105036297A CN201510437345.8A CN201510437345A CN105036297A CN 105036297 A CN105036297 A CN 105036297A CN 201510437345 A CN201510437345 A CN 201510437345A CN 105036297 A CN105036297 A CN 105036297A
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Abstract
The invention relates to sewage treatment methods and devices, in particular to a biological treatment method and device for lowering the sewage nitrogen and phosphorus content. A carbon source is added into water, the ratio of C to N to P in water becomes 50:8:1-150:8:1, the temperature is kept from 5 DEG C to 40 DEG C, the PH value is 6-9, the reaction lasts for at least 1 hour, then, water is made to flow into a biofilter, the temperature is kept from 15 DEG C to 25 DEG C, and the standing time is 2-10 hours, so that biological sludge containing nitrogen and phosphorus and filtered water are formed, and are discharged out of the biofilter. According to the treatment method and structure, nitrogen and phosphorus in the sewage react with a carbon source to generate nutrient substances such as PHAs, PHB, PHV, PHH, starch and the like needed by bacteria, then the nutrient substances enter the biofilter, stagnation is performed, the bacteria absorb the nutrient substances to grow rapidly to form biological sludge sediment to be discharged, the concentration of nitrogen is decreased to be smaller than 0.5 mg/l, and the concentration of phosphorus is 0.1 g/L, the cost is low, and the effect is good.
Description
Technical field
The present invention relates to a kind of sewage disposal device, especially a kind of biological treatment and treatment unit reducing sewerage nitrogen and phosphor content.
Background technology
Sewage disposal is the significant process of process water pollutions.Adopt the method for physics, biology and chemistry to process with the solid pollutant in Separation of Water trade effluent and sanitary sewage and the organic pollutant reduced in water and nutrient rich (being mainly nitrogen, phosphorus compound), thus alleviate the pollution of sewage to environment.Water phosphorus compound surplus can cause a series of water body problem as body eutrophication.It is very crucial for their concentration being reduced to a rational level.The method price used at present is all quite expensive.And suitable method can simultaneously by nitrogen and phosphorus ligands now.
Summary of the invention
The object of the invention is to, a kind of soil removability is strong, easy to install, limit little reduction sewerage nitrogen and phosphor content biological treatment and treatment unit are provided.
The technical solution adopted for the present invention to solve the technical problems is: a kind of biological treatment reducing sewerage nitrogen and phosphor content, a certain amount of carbon source is dropped in water, the ratio of the C:N:P in water is made to become 50:8:1 to 150:8:1, keep temperature 5-40 degree, pH value 6-9, at least 1 hour reaction times, after forming the nutritive substance in sewage needed for bacterium, water body is flow in biological filter and keep temperature 15-25 degree, residence time 2-10 hour, form the biological sludge of Nitrogen-and Phosphorus-containing and the water after filtering, and discharge biological filter respectively.
Of the present inventionly to be further defined to: described carbon source is the organic compound of any one readily biodegradable.
Of the present inventionly to be further defined to: after dropping into carbon source, the optimum proportion of C:N:P is 120:8:1.
Of the present inventionly to be further defined to: after carbon source drops into, temperature of reaction the best is 20 degree, the optimum temps that biological filter is stagnated also is 20 degree.
Of the present inventionly to be further defined to: pH value is 7.2.
The structure of technical solution problem of the present invention is: a kind for the treatment of unit, comprises carbon source reaction container, biological filter, and carbon source reaction container is connected with biological filter, and carbon source reaction container is provided with water inlet and water outlet, and water outlet is communicated with biological filter
Of the present inventionly to be further defined to: biological filter comprises tank body, tank body is provided with import and outlet, import is communicated with water outlet, an aeration passage is provided with in the bottom of tank body, sheathed aeration tube in aeration passage, collection rising pipe is provided with at the top of tank body, collect rising pipe and be provided with gully-hole, collect rising pipe and outlet, be provided with an opening at the top of tank body, opening be provided with and observe lid, form porthole, position corresponding with the outlet of collecting rising pipe on tank body is provided with an acquisition port, is provided with a sewage draining exit in the bottom of tank body.
By above-mentioned treatment process and structure, first can by the nitrogen phosphorus in sewage by generating with the reaction of carbon source the nutritive substance that the bacterium such as PHAs, PHB, PHV, PHH and starch needs, then enter in biological filter, stagnate, the various nutritive substances that bacterium is generated by biological mode absorbed nitrogen phosphoric and the reaction of various carbon source, quick growth, formation biological sludge precipitates, discharge, just can complete the process to nitrogen phosphoric, and concentration can be reduced to nitrogen <0.5mg/L by the present invention, phosphorus 0.1g/L, cost is low, effective.
Accompanying drawing explanation
Fig. 1 is the structural representation of the present embodiment.
Embodiment
A kind of biological treatment reducing sewerage nitrogen and phosphor content of the present invention, its method is, a certain amount of carbon source is dropped in water, the ratio of the C:N:P in water is made to become 50:8:1 to 150:8:1, the optimum proportion 120:8:1 of C:N:P is adopted in the present embodiment, keep temperature 5-40 degree, optimum temps is adopted to be 20 degree in the present embodiment, pH value 6-9, best pH value is 7.2, at least 1 hour reaction times, in the present embodiment, the reaction times continues 2 hours, after forming the nutritive substance in sewage needed for bacterium, water body is flow in biological filter and keep temperature 15-25 degree, optimum temps is adopted to be 20 degree in the present embodiment, residence time 2-10 hour, the present embodiment stops 6 hours, form the biological sludge of Nitrogen-and Phosphorus-containing and the water after filtering, and discharge biological filter respectively.The carbon source adopted in the present embodiment is methyl alcohol, voltaile fatty acid or lipid.Certain biological lipid is usually more better because they can better absorb by bacterium.The carbon source kind that the present invention can adopt is very many.
Known with reference to figure 1, a kind for the treatment of unit of the present invention, comprise carbon source reaction container 6, biological filter, carbon source reaction container 6 is connected with biological filter, and carbon source reaction container 6 is provided with water inlet 61 and water outlet 62, and water outlet 61 is communicated with biological filter 62
Of the present inventionly to be further defined to: comprise tank body 1, tank body 1 is provided with import 11 and outlet 12, import 11 is communicated with water outlet 61, an aeration passage 2 is provided with in the bottom of tank body 1, sheathed aeration tube 3 in aeration passage 2, be provided with at the top of tank body 1 and collect rising pipe 4, collect rising pipe 4 and be provided with gully-hole 41, collect rising pipe 4 to be communicated with outlet 12, an opening is provided with at the top of tank body 1, opening is provided with and observes lid 14, form porthole 13, position corresponding with the outlet of collecting rising pipe 4 on tank body 1 is provided with an acquisition port 15, a sewage draining exit 16 is provided with in the bottom of tank body 1, a more thread-changing 31 for changing is respectively equipped with at the two ends of aeration tube 3, the more thread-changing 31 of both sides is separately positioned on import 11 and outlet 12 places, described aeration passage 2 arranged in parallel is in the bottom of tank body 1, described collection rising pipe 4 arranged in parallel is at the top of tank body 1, throw in tank body 1 and have large filler 5.
When the present invention uses, carbon source can be thrown in directly in the water body of sewage, also sewage can be drawn in carbon source reaction container 6, carry out reaction treatment, then output in biological filter and process, by carbon source reaction container, by the proportioning of water level and volume, what just become the ratio control of C:N:P is easy to, and can make standardized Sewage treatment systems.
Following table is the factor index scope needing in this technical process to control:
Known with reference to upper table, under the setting of corresponding environment and reaction parameter, microorganism (speed of growth of bacterium) can be improved, so overall process and reaction times can get a promotion, and finally can by content below the control 0.5mg/L of nitrogen, the content of phosphorus is at about 0.1g/L, compare with traditional nitrogen phosphorus treatment process, cost is very low, reaction times is also shorter, processed by the mode of biology, very environmental protection, can not secondary pollution, and effect will significantly better than other treatment process, other treatment process, can only by content below the control 5mg/L of nitrogen, the content of phosphorus is at about 0.5g/L.
Obviously, above-described embodiment is only used to done citing is clearly described, and the restriction not to embodiment.To those of ordinary skill in the art, can also make other changes in different forms on the basis of the above description.Here exhaustive without the need to also giving all embodiments.And thus the apparent change of extending out or variation be still in protection scope of the present invention.
Claims (7)
1. reduce a biological treatment for sewerage nitrogen and phosphor content, its method is as follows:
A certain amount of carbon source is dropped in water, the ratio of the C:N:P in water is made to become 50:8:1 to 150:8:1, keep temperature 5-40 degree, pH value 6-9, at least 1 hour reaction times, after forming the nutritive substance in sewage needed for bacterium, water body is flow in biological filter and keep temperature 15-25 degree, residence time 2-10 hour, forms the biological sludge of Nitrogen-and Phosphorus-containing and the water after filtering, and discharges biological filter respectively.
2. according to the biological treatment of reduction sewerage nitrogen and phosphor content according to claim 1, it is characterized in that: described carbon source is the organic compound of any one readily biodegradable.
3. according to the biological treatment of reduction sewerage nitrogen and phosphor content according to claim 1, it is characterized in that: after dropping into carbon source, the optimum proportion of C:N:P is 120:8:1.
4. according to the biological treatment of reduction sewerage nitrogen and phosphor content according to claim 1, it is characterized in that: after carbon source drops into, temperature of reaction the best is 20 degree, the optimum temps that biological filter is stagnated also is 20 degree.
5. according to the biological treatment of reduction sewerage nitrogen and phosphor content according to claim 1, it is characterized in that: pH value is 7.2.
6. a treatment unit, is characterized in that: comprise carbon source reaction container, biological filter, and carbon source reaction container is connected with biological filter, and carbon source reaction container is provided with water inlet and water outlet, and water outlet is communicated with biological filter.
7. according to treatment unit according to claim 6, it is characterized in that: biological filter comprises tank body, tank body is provided with import and outlet, import is communicated with water outlet, an aeration passage is provided with in the bottom of tank body, sheathed aeration tube in aeration passage, collection rising pipe is provided with at the top of tank body, collect rising pipe and be provided with gully-hole, collect rising pipe and outlet, an opening is provided with at the top of tank body, opening is provided with and observes lid, form porthole, position corresponding with the outlet of collecting rising pipe on tank body is provided with an acquisition port, a sewage draining exit is provided with in the bottom of tank body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201510437345.8A CN105036297A (en) | 2015-07-23 | 2015-07-23 | Biological treatment method and device for lowering sewage nitrogen and phosphorus content |
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| CN201510437345.8A CN105036297A (en) | 2015-07-23 | 2015-07-23 | Biological treatment method and device for lowering sewage nitrogen and phosphorus content |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1456520A (en) * | 2002-05-10 | 2003-11-19 | 中国科学院生态环境研究中心 | Micro-flocculation-deep bed direct filtering and synchronously dephosphorizing and nitrogen removing process for urban sewage |
| CN101264976A (en) * | 2008-04-28 | 2008-09-17 | 同济大学 | Carbon source supplement anoxic biology filter deep denitrogenation dephosphorization treatment system |
| CN101767919A (en) * | 2010-01-11 | 2010-07-07 | 中国水产科学研究院黄海水产研究所 | Microbial purification facility and method for water quality of intensive culture system of pond |
| CN201896099U (en) * | 2010-11-18 | 2011-07-13 | 无锡市德林环保设备有限公司 | Biological aerated filter |
-
2015
- 2015-07-23 CN CN201510437345.8A patent/CN105036297A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1456520A (en) * | 2002-05-10 | 2003-11-19 | 中国科学院生态环境研究中心 | Micro-flocculation-deep bed direct filtering and synchronously dephosphorizing and nitrogen removing process for urban sewage |
| CN101264976A (en) * | 2008-04-28 | 2008-09-17 | 同济大学 | Carbon source supplement anoxic biology filter deep denitrogenation dephosphorization treatment system |
| CN101767919A (en) * | 2010-01-11 | 2010-07-07 | 中国水产科学研究院黄海水产研究所 | Microbial purification facility and method for water quality of intensive culture system of pond |
| CN201896099U (en) * | 2010-11-18 | 2011-07-13 | 无锡市德林环保设备有限公司 | Biological aerated filter |
Non-Patent Citations (3)
| Title |
|---|
| 张自杰等: "《排水工程 下册（第四版）》", 30 June 2000, 中国建筑工业出版社 * |
| 袁敏等: "甲醇为碳源时生物滤池去除二级出水中氮、磷的研究 ", 《中国给水排水》 * |
| 袁敏等: "甲醇为碳源时生物滤池去除二级出水中氮、磷的研究", 《中国给水排水》 * |
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