CN113402114A - Breed waste water integrated processing system rich in heavy metal ion - Google Patents
Breed waste water integrated processing system rich in heavy metal ion Download PDFInfo
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- CN113402114A CN113402114A CN202110654059.2A CN202110654059A CN113402114A CN 113402114 A CN113402114 A CN 113402114A CN 202110654059 A CN202110654059 A CN 202110654059A CN 113402114 A CN113402114 A CN 113402114A
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- 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
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- 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
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- 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
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- 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
- C02F1/42—Treatment of water, waste water, or sewage by ion-exchange
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- 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
- C02F1/50—Treatment of water, waste water, or sewage by addition or application of a germicide or by oligodynamic treatment
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- 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
- C02F1/72—Treatment of water, waste water, or sewage by oxidation
- C02F1/725—Treatment of water, waste water, or sewage by oxidation by catalytic oxidation
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- 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
- C02F1/72—Treatment of water, waste water, or sewage by oxidation
- C02F1/78—Treatment of water, waste water, or sewage by oxidation with ozone
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- 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
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- 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
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- 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
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- 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
- C02F2101/30—Organic compounds
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- 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
- C02F2103/20—Nature of the water, waste water, sewage or sludge to be treated from animal husbandry
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2209/00—Controlling or monitoring parameters in water treatment
- C02F2209/40—Liquid flow rate
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2303/00—Specific treatment goals
- C02F2303/04—Disinfection
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- 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
- C02F3/322—Biological treatment of water, waste water, or sewage characterised by the animals or plants used, e.g. algae use of algae
Abstract
The invention discloses a comprehensive treatment system for aquaculture wastewater rich in heavy metal ions, which is characterized in that the comprehensive treatment system for aquaculture wastewater is integrally designed, so that the aquaculture wastewater is subjected to solid-liquid separation, sterilization, disinfection, catalytic degradation, heavy metal ion adsorption and biological purification in the comprehensive treatment system, and the comprehensive treatment system for aquaculture wastewater has a siphon back-flushing function, so that the service life of a filter layer is effectively prolonged; and the algae can be cultured in the biological purification area, N, P elements can be efficiently consumed, and the produced chlorella and myriophyllum can be used as high-quality culture feed, so that the effect of resource recycling is achieved.
Description
Technical Field
The invention relates to a rural pollution treatment technology, in particular to a comprehensive treatment system for breeding wastewater rich in heavy metal ions.
Background
The rural non-point source pollution refers to pollution caused by that dissolved or solid pollutants enter a receiving water body (river, lake, reservoir and gulf) from unspecified regions under the action of rainfall and runoff scouring by farmland surface runoff, farmland drainage and underground leakage.
The main causes of rural non-point source pollution are as follows: 1. the excessive use of the fertilizer causes problems of water eutrophication and soil acidification; 2. the problems of water pollution and the like caused by the overuse of pesticides and the random abandonment of pesticide bag packages; 3. the problems of water pollution, air malodor and the like caused by a large amount of excrement brought by livestock and poultry breeding; 4. the excessive straws are burnt to cause the problems of soil hardening, air quality deterioration and the like.
With the continuous development of economy, the supply level of society is continuously enriched, and the demand of meat and poultry eggs stimulates the rapid development of livestock and poultry breeding industry. However, a large amount of excrement is also generated and is mainly discharged into a water body to form culture wastewater, so that water body pollution and eutrophication are caused.
Meanwhile, the aquaculture wastewater has the characteristics of more suspended matters, high organic matter concentration, large bacterial amount and complex types, and the aquaculture wastewater is easy to complex heavy metal ions in the land and water body due to the high organic matter concentration and the high nitrogen and phosphorus content, so that the aquaculture wastewater rich in the heavy metal ions is formed.
In the prior art, some technologies are used for treating eutrophication of aquaculture wastewater, some technologies are used for treating heavy metal ions in the aquaculture wastewater, and almost no comprehensive treatment technology is used for treating the aquaculture wastewater.
Therefore, the comprehensive treatment system for the aquaculture wastewater rich in the heavy metal ions is developed, the comprehensive treatment system for the aquaculture wastewater is integrally designed, so that the aquaculture wastewater can be subjected to solid-liquid separation, sterilization and disinfection, catalytic degradation, heavy metal ion adsorption and biological purification in the comprehensive treatment system, and the comprehensive treatment system for the aquaculture wastewater has a siphon back-flushing function, so that the service life of a filter layer is effectively prolonged.
Disclosure of Invention
The invention discloses a comprehensive treatment system for aquaculture wastewater rich in heavy metal ions, which is integrally designed, so that the aquaculture wastewater is subjected to solid-liquid separation, sterilization, disinfection, catalytic degradation, heavy metal ion adsorption and biological purification in the comprehensive treatment system, and the comprehensive treatment system for aquaculture wastewater has a siphon back-flushing function, so that the service life of a filter layer is effectively prolonged.
A comprehensive treatment system for aquaculture wastewater rich in heavy metal ions comprises a purifier 1, wherein a siphon device 2 is arranged in the center of the purifier 1; the siphon device 2 comprises a conical partition plate 3, a sewage inlet 4, an inlet valve 19, a siphon ascending pipe 5, a siphon inclined pipe 6, a siphon descending pipe 7 and a siphon water seal device 8, the siphon device 2 is connected with the purifier 1 in a sealing mode through the conical partition plate 3, the sewage inlet 4 is communicated with the siphon ascending pipe 5 through the inlet valve 19, and the end portion of the siphon descending pipe 7 is located inside the siphon water seal device 8 and can form a water seal; the purifier 1 is positioned at the lower part of the conical partition plate 3 and sequentially comprises a filtering layer 10 and a water collecting area 11 from top to bottom, and the purifier 1 is positioned at the upper part of the conical partition plate 3 and sequentially comprises a catalyst fixing layer 13, a heavy metal adsorption layer 15 and a biological purification area 16 from bottom to top; the water collecting area 11 with catalyst fixed bed 13 passes through communicating pipe 12 intercommunication, communicating pipe 12 is located catalyst fixed bed 13's exit below is equipped with air-blowing mouth 14, clarifier 1 is in the top in biological purification district 16 is equipped with purified water outlet 17.
Further, the purifier 1 is open.
Further, the siphon water seal 8 is provided with a backwash water outlet 9.
Furthermore, a flow monitoring device 18 is arranged at the high point of the siphon inclined pipe 6.
Further, the material of the filter layer 10 is quartz sand.
Further, the material used by the catalyst fixed layer 13 is a spherical catalyst JXHH-ODC06 or JXHH-ODC 07.
Further, the material used for the heavy metal adsorption layer 15 is diatomite or weak acid type cation exchange resin.
Further, the gas blown by the air blowing port 14 is a mixed gas with the volume ratio of air to ozone being 2-8: 3-5.
Further, algae, preferably chlorella or foxtail algae, are grown in the biological purification zone 16 to consume N, P elements.
The invention has the advantages that:
1. according to the invention, solid-liquid separation of the aquaculture wastewater is realized through the filter layer, and the filter layer can be backwashed through the siphon device, so that the service life of the filter layer is effectively prolonged, and the maintenance workload of the filter layer is reduced;
2. the invention synchronously realizes the sterilization and disinfection of the aquaculture wastewater and the catalytic degradation of organic matters through the matching of the catalyst fixing layer and ozone, and leads the coated heavy metal ions to be broken and dissociated;
3. according to the invention, free heavy metal ions are adsorbed and removed through the heavy metal adsorption layer, the method is efficient and convenient, and the adsorption material is easy to replace;
4. the invention utilizes the biological purification area to culture algae, which not only can efficiently consume N, P elements, but also can produce chlorella and myriophyllum as high-quality culture feed to achieve the effect of resource recycling.
Drawings
FIG. 1 is a schematic cross-sectional view of an integrated treatment system of the present invention;
in the figure, 1-purifier, 2-siphon device, 3-conical partition, 4-sewage inlet, 5-siphon ascending pipe, 6-siphon inclined pipe, 7-siphon descending pipe, 8-siphon water sealer, 9-backwash water outlet, 10-filtering layer, 11-water collecting zone, 12-communicating pipe, 13-catalyst fixing layer, 14-air blowing port, 15-heavy metal adsorption layer, 16-biological purification zone, 17-purified water outlet, 18-flow monitoring device and 19-inlet valve
Detailed Description
Example 1
The invention will now be described with reference to the accompanying drawings.
As shown in figure 1, the comprehensive treatment system for the aquaculture wastewater rich in heavy metal ions comprises a purifier 1, wherein a siphon device 2 is arranged in the center of the purifier 1; the siphon device 2 comprises a conical partition plate 3, a sewage inlet 4, an inlet valve 19, a siphon ascending pipe 5, a siphon inclined pipe 6, a siphon descending pipe 7 and a siphon water seal device 8, the siphon device 2 is connected with the purifier 1 in a sealing way through the conical partition plate 3, the sewage inlet 4 is communicated with the siphon ascending pipe 5 through the inlet valve 19, and the end part of the siphon descending pipe 7 is positioned inside the siphon water seal device 8 and can form a water seal; the purifier 1 is positioned at the lower part of the conical partition plate 3 and sequentially comprises a filtering layer 10 and a water collecting area 11 from top to bottom, and the purifier 1 is positioned at the upper part of the conical partition plate 3 and sequentially comprises a catalyst fixing layer 13, a heavy metal adsorption layer 15 and a biological purification area 16 from bottom to top; the water collecting area 11 is communicated with the catalyst fixed layer 13 through a communicating pipe 12, an air blowing port 14 is arranged below the outlet of the catalyst fixed layer 13 of the communicating pipe 12, and a purified water outlet 17 is arranged at the top of the biological purification area 16 of the purifier 1.
The purifier 1 is arranged in an open way, the siphon water seal device 8 is provided with a back flushing water outlet 9, and the high point of the siphon inclined pipe 6 is provided with a flow monitoring device 18.
The material used by the filter layer 10 is quartz sand, the material used by the catalyst fixing layer 13 is a spherical catalyst JXHH-ODC06, and the material used by the heavy metal adsorption layer 15 is determined according to the concentration of heavy metal ions in the aquaculture wastewater: when the heavy metal content of the aquaculture wastewater is low, the purpose of adsorbing and removing heavy metal ions can be achieved by taking the diatomite as the heavy metal adsorption layer 15; when the heavy metal content of the aquaculture wastewater is high, weak acid type cation exchange resin is used as the heavy metal adsorption layer 15 to efficiently adsorb and remove heavy metal ions.
The gas blown from the air blowing port 14 is mixed gas with the volume ratio of air to ozone being 2-8: 3-5, and the cost can be effectively reduced by using the mixed gas; when the organic matter content of the aquaculture wastewater is higher, the ozone concentration can be correspondingly improved.
Algae are cultured in the biological purification area 16 to consume N, P elements, and the algae are preferably chlorella and myriophyllum which can be used as high-quality culture feed.
The working modes of the invention are as follows:
the aquaculture wastewater enters the purifier 1 through the sewage inlet 4, the siphon ascending pipe 5 and the conical partition plate 3 in sequence, suspended matters are filtered through the filter layer 10, the aquaculture wastewater with the filtered suspended matters is collected in the water collection area 11, and the aquaculture wastewater enters the catalyst fixing layer 13 through the potential energy difference and the communicating pipe 12; the proportion of ozone blown by the air blowing port 14 is adjusted according to the concentration of organic matters in the aquaculture wastewater, and the aquaculture wastewater is sterilized and disinfected and the organic matters are degraded under the action of the catalyst fixing layer 13; because the organic matter is decomposed, the coated heavy metal ions are broken into complexes and dissociated, and the heavy metal ions are adsorbed and removed through the heavy metal adsorption layer 15; the cultivation wastewater without heavy metal ions continues to enter the biological purification area 16, and N, P elements are consumed under the action of the cultivated algae.
When the filter layer 10 is slowly blocked, the required pressure difference of the filter layer 10 is continuously increased, so that the liquid level of the culture wastewater in the siphon ascending pipe 5 is continuously lifted, when the liquid level is higher than the high point of the siphon inclined pipe 6, the culture wastewater is discharged into the siphon water seal device 8 through the siphon descending pipe 7 to form a communicating device, meanwhile, the inlet valve 19 is closed, and the liquid in the purifier 1 is backflushed to the filter layer 10 through siphon, so that the aim of backflushing and purifying the filter layer 10 is fulfilled.
The flow monitoring device 18 is arranged at the high point of the siphon inclined pipe 6, and the inlet valve 19 can be automatically closed through the detection result of the flow monitoring device 18 during back flushing.
The comprehensive treatment system for the aquaculture wastewater rich in the heavy metal ions is designed integrally, so that the aquaculture wastewater can be subjected to solid-liquid separation, sterilization, disinfection, catalytic degradation, heavy metal ion adsorption and biological purification in the comprehensive treatment system, and has a siphon back-flushing function, so that the effect of resource recycling is achieved.
And finally: the terms "upper", "lower", "left" and "right" are used for convenience only to describe the corresponding relationship of the components, and the above description is only a preferred embodiment of the present invention and not intended to limit the present invention, and any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. The utility model provides a breed waste water integrated processing system who is rich in heavy metal ion which characterized in that: the comprehensive treatment system for the aquaculture wastewater comprises a purifier (1), wherein a siphon device (2) is arranged in the center of the purifier (1); the siphon device (2) comprises a conical partition plate (3), a sewage inlet (4), an inlet valve (19), a siphon ascending pipe (5), a siphon inclined pipe (6), a siphon descending pipe (7) and a siphon water seal device (8), the siphon device (2) is hermetically connected with the purifier (1) through the conical partition plate (3), the sewage inlet (4) is communicated with the siphon ascending pipe (5) through the inlet valve (19), and the end part of the siphon descending pipe (7) is positioned in the siphon water seal device (8) and can form a water seal; the purifier (1) is positioned at the lower part of the conical partition plate (3) and sequentially provided with a filtering layer (10) and a water collecting area (11) from top to bottom, and the purifier (1) is positioned at the upper part of the conical partition plate (3) and sequentially provided with a catalyst fixing layer (13), a heavy metal adsorption layer (15) and a biological purification area (16) from bottom to top; the water collecting area (11) is communicated with the catalyst fixing layer (13) through a communicating pipe (12), the communicating pipe (12) is located a blowing port (14) is arranged below an outlet of the catalyst fixing layer (13), and the purifier (1) is arranged at the top of the biological purification area (16) and is provided with a purified water outlet (17).
2. The aquaculture wastewater comprehensive treatment system according to claim 1, characterized in that: the purifier (1) is arranged in an open manner.
3. The aquaculture wastewater comprehensive treatment system according to claim 1, characterized in that: the siphon water seal (8) is provided with a back flush water outlet (9).
4. The aquaculture wastewater comprehensive treatment system according to claim 1, characterized in that: and a flow monitoring device (18) is arranged at the high point of the siphon inclined pipe (6).
5. The aquaculture wastewater comprehensive treatment system according to claim 1, characterized in that: the filtering layer (10) is made of quartz sand.
6. The aquaculture wastewater comprehensive treatment system according to claim 1, characterized in that: the material used by the catalyst fixed layer (13) is a spherical catalyst JXHH-ODC06 or JXHH-ODC 07.
7. The aquaculture wastewater comprehensive treatment system according to claim 1, characterized in that: the heavy metal adsorption layer (15) is made of diatomite or weak acid type cation exchange resin.
8. The aquaculture wastewater comprehensive treatment system according to claim 1, characterized in that: the air blown by the air blowing port (14) is mixed gas with the volume ratio of air to ozone being 2-8: 3-5.
9. The comprehensive aquaculture wastewater treatment system according to any one of claims 1 to 8, wherein: algae is grown in the biological purification zone (16) to consume N, P elements.
10. The aquaculture wastewater comprehensive treatment system according to claim 9, characterized in that: the algae is Chlorella or Foliumet Setaria.
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| 吴卫飞等: "养殖废水处理技术进展", 《资源节约与环保》 * |
| 吴卫飞等: "养殖废水处理技术进展", 《资源节约与环保》, no. 9, 25 September 2019 (2019-09-25), pages 90 - 91 * |
| 贾晓刚: "工厂化养殖中的水循环处理", 《齐鲁渔业》, no. 02, 15 February 2010 (2010-02-15), pages 47 - 50 * |
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