CN103408190B - Sewage disposal system - Google Patents
Sewage disposal system Download PDFInfo
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- CN103408190B CN103408190B CN201310328677.3A CN201310328677A CN103408190B CN 103408190 B CN103408190 B CN 103408190B CN 201310328677 A CN201310328677 A CN 201310328677A CN 103408190 B CN103408190 B CN 103408190B
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Abstract
The invention discloses a kind of sewage disposal system, including as follows: collecting pit, methane-generating pit: methane-generating pit is connected with collecting pit by charging aperture, this methane-generating pit is an airtight pond, and bottom is equipped with impervious barrier, in methane-generating pit, place Excreta or sewage etc., in methane-generating pit after fermentation, automatically form biogas residue layer, biogas slurry layer and biogas layer, be respectively equipped with the slag notch, liquid outlet and the gas collection mouth that connect with biogas residue layer, biogas slurry layer and biogas layer at methane-generating pit periphery；Deslagging pond: deslagging pond is connected with slag notch by pipeline；Biogas slurry collecting pit: biogas slurry collecting pit is connected with methane-generating pit by liquid outlet；Biogas slurry cleaning system is connected with biogas slurry collecting pit。The sewage disposal system of the present invention, by sewage is focused on, effectively utilize produced biogas, biogas slurry and biogas residue, realize the comprehensive utilization of sewage, simultaneously by rational pipe design, realizing automatic grain slag to separate, sewage intercepting well rate is high, and engineering construction cost is low, high financial profit and easy large-scale promotion。
Description
Technical field
The present invention relates to sewage treatment area, particularly to a kind of sewage disposal system for animal husbandry。
Background technology
China has huge animal husbandry industrial chain, for promoting that national development and raising farmers' income are made that great contribution。But, in view of the restriction of China's present stage agricultural science and technology level, while producing, substantial amounts of sewage is directly discharged into rivers, causes serious pollution。Therefore, using for reference Experience in Development both domestic and external, China starts greatly develop green agriculture and build ecological environmental-protection cultivation。Wherein, after including a kind of Excreta by the mankind and animal or sewage collecting fermentation, obtain biogas and the sewage disposal system of various energy utilization device is set around biogas。Present stage, this sewage disposal system remains on a small scale and the application of little scope, and major part methane-generating pit is sewage is carried out regeneration unilaterally, and after obtaining biogas, remaining biogas slurry and biogas residue are abandoned as waste material。It addition, biogas residue and biogas slurry are often deposited on bottom methane-generating pit, biogas slurry and biogas residue mix and are difficult to separate, it is necessary to human at periodic intervals salvages that separate after cleaning can be further with。The utilization rate of sewage is still very low, and engineering construction cost is high, and economic benefit is low, it is difficult to large-scale promotion。Meanwhile, the sewage after process is often difficult to reach discharge standard, causes severe contamination。
Summary of the invention
The present invention is directed to the defect of above-mentioned prior art, it is provided that a kind of novel sewage disposal system, can realize automatic grain slag and separate, sewage intercepting well rate is high, and engineering construction cost is low, high financial profit and easy large-scale promotion。
According to an aspect of the present invention, it is provided that a kind of sewage disposal system, including as follows: collecting pit: be used for collecting Excreta or sewage；Methane-generating pit: methane-generating pit is connected with collecting pit by charging aperture, this methane-generating pit is an airtight pond, and bottom is equipped with impervious barrier, Excreta or sewage is placed in methane-generating pit, in methane-generating pit after fermentation, automatically form biogas residue layer, biogas slurry layer and biogas layer, be respectively equipped with the slag notch, liquid outlet and the gas collection mouth that connect with biogas residue layer, biogas slurry layer and biogas layer at methane-generating pit periphery；Deslagging pond: described deslagging pond is connected with slag notch by pipeline, for discharging the biogas residue of methane-generating pit；Biogas slurry collecting pit: described biogas slurry collecting pit is connected with methane-generating pit by liquid outlet, is used for storing biogas slurry；Biogas slurry cleaning system: described biogas slurry cleaning system is connected with biogas slurry collecting pit, carries out decontamination cycle utilization to the biogas slurry discharged。
Further, biogas slurry cleaning system includes the acid-alkali accommodation pond, sedimentation tank, anoxic pond, Aeration tank, biological reaction pool, float sedimentation tank and the photocatalyst system that are sequentially connected with, wherein acid-alkali accommodation pond is connected with biogas slurry collecting pit, the outlet that described photocatalyst system is provided with。
Further, photocatalyst system is connected with fish pond or other use terminals by outlet。
Further, the job step of biogas slurry cleaning system is: a, biogas slurry is input into from biogas slurry collecting pit acid-alkali accommodation pond, the pH of biogas slurry is adjusted or balanced by acid-alkali accommodation pond so that it is reaches to meet the demand of growth of microorganism, and is conducive to follow-up flocculation sediment；B, biogas slurry enter sedimentation tank, use flocculant to be got off by the biogas residue coagulation sedimentation suspended in biogas slurry；C, through sedimentation tank precipitate after, biogas slurry sequentially enters anoxic pond, Aeration tank realizes denitrification effect；D, then pass through biological reaction pool oxidation Decomposition Organic substance or poisonous substance, sewage is carried out deep purifying；E, remove the solid suspension of residual in biogas slurry by float sedimentation tank；F, then through photocatalyst system, biogas slurry is decoloured, and effectively kill the antibacterial in biogas slurry；G, after above-mentioned process, discharge water can be fully achieved Livestock pollution thing discharge standard, and flow out via outlet and utilize, and so achieves sewage purification and recycles。
Further, also comprising the steps b-1: the biogas residue precipitated becomes a blob of slag after filter pressing, be used for making compoiste fertilizer in above-mentioned step b, the waste liquid of extrusion is collected by pipeline and is back to biogas slurry collecting pit。
Further, deslagging pond is connected by Residue extraction pipeline with slag notch, is provided with valve in one end that described Residue extraction pipeline connects with biogas residue pond, and the biogas residue collected by biogas residue pond becomes a blob of slag by pressure filter filter pressing, for making compoiste fertilizer, described waste liquid is collected by pipeline and is back to biogas slurry collecting pit。
Further, gas collection mouth is communicated to biogas generator or biogas burner。
Further, biogas burner includes marsh gas stove, biogas lamp, Marsh gas water heater and biogas heat-insulating lamp。
Further, methane-generating pit stops fermentation time no less than 30 days, and with the above-mentioned time for a cycle, regularly the biogas residue in methane-generating pit is expelled to deslagging pond。
Further, methane-generating pit is provided with multiple charging aperture, and described charging aperture is communicated to methane-generating pit by underground piping。
The workflow of sewage disposal system is: collecting pit collects Excreta or sewage, by charging aperture, the Excreta collected or sewage are sent into methane-generating pit to ferment, in whole process, under the effect of air pressure and gravity, biogas can be gathered in the upper strata of methane-generating pit, biogas slurry is gathered in the middle level of methane-generating pit, biogas residue is deposited in the bottom of methane-generating pit, biogas slurry enters biogas slurry collecting pit by liquid outlet, by biogas slurry cleaning system, biogas slurry is carried out purified treatment and draw standard compliant scrubbing water, biogas connects biogas generator by gas outlet or biogas burner uses, biogas residue enters deslagging pond by Residue extraction pipeline, biogas residue carries out filter pressing, the biogas slurry being press-filtered out flows into biogas slurry collecting pit and carries out purification utilization, compoiste fertilizer made by a remaining blob of slag。
Beneficial effects of the present invention: the sewage disposal system of the present invention includes collecting pit, methane-generating pit, biogas residue pond, biogas slurry pond, gas collection mouth and biogas slurry cleaning system。Collecting pit is used for collecting sewage；Collected Excreta or sewage are fermented by methane-generating pit, obtain biogas residue, biogas slurry and biogas。Owing to methane-generating pit is an airtight space, under the effect of air pressure and gravity, biogas can be gathered in the upper strata of methane-generating pit, and biogas slurry is gathered in the middle level of methane-generating pit, and biogas residue is deposited in the bottom of methane-generating pit。Biogas is discharged by being located at the gas collection mouth on methane-generating pit upper strata, biogas slurry is discharged by being located at the liquid outlet in methane-generating pit middle level, the biogas residue of bottom is under the dual function of air pressure inside and gravity, it is extruded, and discharged by the scum pipe of methane-generating pit bottom, realize grain slag whereby to separate, it is not necessary to artificial salvaging is cleared up and separated；Biogas residue is collected by biogas residue pond, prepares next step processing；Gas collection mouth is used for exporting biogas produced by methane-generating pit, and biogas slurry flows into biogas slurry cleaning system through liquid outlet and carries out purifying and recycling。The sewage disposal system of the present invention, by sewage is focused on, and effectively utilize produced biogas, biogas slurry and biogas residue, realize the comprehensive utilization of sewage, simultaneously by rational pipe design, realizing automatic grain slag to divide, sewage intercepting well rate is high, and engineering construction cost is low, high financial profit and easy large-scale promotion。
Accompanying drawing explanation
Fig. 1 is the structural representation of the sewage disposal system of one embodiment of the present invention
Fig. 2 is the schematic flow sheet of the sewage disposal system of one embodiment of the present invention。
Detailed description of the invention
Below in conjunction with accompanying drawing, the present invention is further detailed explanation。
Fig. 1 and Fig. 2 show schematically show the sewage disposal system according to one embodiment of the present invention。
As it is shown in figure 1, sewage disposal system includes as follows:
Collecting pit: be used for collecting Excreta or sewage；
Methane-generating pit: methane-generating pit is provided with multiple charging aperture, charging aperture is communicated to collecting pit by underground piping, this methane-generating pit is an airtight pond, and bottom is equipped with impervious barrier, Excreta or sewage is placed in methane-generating pit, methane-generating pit ferments, general fermentation period is 30 days, also can according to practical situation (such as temperature, humidity etc.) adjust the fermentation period time to reach the ferment effect of the best, methane-generating pit automatically forms biogas residue layer after fermentation, biogas slurry layer and biogas layer, it is respectively equipped with and biogas residue layer at methane-generating pit periphery, the slag notch that biogas slurry layer connects with biogas layer, liquid outlet and gas collection mouth, gas collection mouth is communicated to biogas generator or biogas burner, biogas burner includes marsh gas stove, biogas lamp, Marsh gas water heater and biogas heat-insulating lamp。According further to the time of fermentation period, regularly the biogas residue in methane-generating pit is expelled to deslagging pond；
Deslagging pond: deslagging pond is connected by Residue extraction pipeline with slag notch, the one end connected with biogas residue pond at described Residue extraction pipeline is provided with valve, biogas residue collected by biogas residue pond becomes a blob of slag by pressure filter filter pressing, is used for making compoiste fertilizer, and described waste liquid is collected by pipeline and is back to biogas slurry collecting pit。
Biogas slurry collecting pit: described biogas slurry collecting pit is connected with methane-generating pit by liquid outlet, is used for storing biogas slurry；
Biogas slurry cleaning system: biogas slurry cleaning system includes the acid-alkali accommodation pond, sedimentation tank, anoxic pond, Aeration tank, biological reaction pool, float sedimentation tank, photocatalyst system and the fish pond that are sequentially connected with, wherein acid-alkali accommodation pond is connected with biogas slurry collecting pit, described photocatalyst system is connected with fish pond by the outlet being provided with, and the biogas slurry discharged is carried out decontamination cycle utilization。
Job step in above-mentioned biogas slurry cleaning system is: a, biogas slurry is input into from biogas slurry collecting pit acid-alkali accommodation pond, and the pH of biogas slurry is adjusted or balanced by acid-alkali accommodation pond so that it is reaches to meet the demand of growth of microorganism, and is conducive to follow-up flocculation sediment；B, biogas slurry enter sedimentation tank, use flocculant to be got off by the biogas residue coagulation sedimentation suspended in biogas slurry；The biogas residue precipitated becomes a blob of slag after filter pressing, is used for making compoiste fertilizer, and the waste liquid of extrusion is collected by pipeline and is back to biogas slurry collecting pit；C, through sedimentation tank precipitate after, biogas slurry sequentially enters anoxic pond, Aeration tank realizes denitrification effect；D, then pass through biological reaction pool oxidation Decomposition Organic substance or poisonous substance, sewage is carried out deep purifying；E, remove the solid suspension of residual in biogas slurry by sedimentation tank；F, then through photocatalyst system, biogas slurry is decoloured, and effectively kill the antibacterial in biogas slurry；G, after above-mentioned process, discharge water can be fully achieved Livestock pollution thing discharge standard, and flows into fish pond via outlet, it is achieved that sewage purification also recycles。Concrete water outlet data following (unit: mg/L)
As shown in Figure 2: the workflow of above-mentioned sewage disposal system, collecting pit collects Excreta or sewage, by charging aperture, the Excreta collected or sewage are sent into methane-generating pit to ferment, in whole process, under the effect of air pressure and gravity, biogas can be gathered in the upper strata of methane-generating pit, biogas slurry is gathered in the middle level of methane-generating pit, biogas residue is deposited in the bottom of methane-generating pit, biogas slurry enters biogas slurry collecting pit by liquid outlet, by biogas slurry cleaning system, biogas slurry is carried out purified treatment and draw standard compliant scrubbing water, biogas connects biogas generator by gas outlet or biogas burner uses, biogas residue enters deslagging pond by Residue extraction pipeline, biogas residue carries out filter pressing, the waste liquid being press-filtered out flows into biogas slurry collecting pit and carries out purification utilization, compoiste fertilizer made by a remaining blob of slag。
The sewage disposal system of the present embodiment, the capacity of methane-generating pit is 10000 cubic metres, day processes 300 tons of sewage, daily output biogas more than 2000 cubic metre, and it is provided with two biogas generators, every day generates electricity about 3600 degree, sewage fermentation produces biogas and is used for generating electricity, can turn waste into wealth, it is achieved recycling of garbage, be that plant is energy-conservation, reduce discharging, the effective way of potentiation。
The foregoing is only a kind of preferred implementation of the present invention。For the person of ordinary skill of the art, without departing from the concept of the premise of the invention, it is also possible to make some deformation and improvement, belong to protection scope of the present invention。
Claims (8)
1. sewage disposal system, it is characterised in that include as follows: collecting pit: be used for collecting Excreta or sewage；Methane-generating pit: methane-generating pit is connected with collecting pit by charging aperture, this methane-generating pit is an airtight pond, and bottom is equipped with impervious barrier, Excreta or sewage is placed in methane-generating pit, in methane-generating pit after fermentation, automatically form biogas residue layer, biogas slurry layer and biogas layer, be respectively equipped with the slag notch, liquid outlet and the gas collection mouth that connect with biogas residue layer, biogas slurry layer and biogas layer at methane-generating pit periphery；Deslagging pond: described deslagging pond is connected with slag notch by pipeline, for discharging the biogas residue of methane-generating pit；Biogas slurry collecting pit: described biogas slurry collecting pit is connected with methane-generating pit by liquid outlet, is used for storing biogas slurry；Biogas slurry cleaning system: described biogas slurry cleaning system is connected with biogas slurry collecting pit, carries out decontamination cycle utilization to the biogas slurry discharged；Described biogas slurry cleaning system includes the acid-alkali accommodation pond, sedimentation tank, anoxic pond, Aeration tank, biological reaction pool, float sedimentation tank and the photocatalyst system that are sequentially connected with, wherein acid-alkali accommodation pond is connected with biogas slurry collecting pit, and described photocatalyst system is provided with outlet；The job step of described biogas slurry cleaning system is: a, biogas slurry is input into from biogas slurry collecting pit acid-alkali accommodation pond, and the pH of biogas slurry is adjusted or balanced by acid-alkali accommodation pond so that it is reaches to meet the demand of growth of microorganism, and is conducive to follow-up flocculation sediment；B, biogas slurry enter sedimentation tank, use flocculant to be got off by the biogas residue coagulation sedimentation suspended in biogas slurry；C, through sedimentation tank precipitate after, biogas slurry sequentially enters anoxic pond, Aeration tank realizes denitrification effect；D, then pass through biological reaction pool oxidation Decomposition Organic substance or poisonous substance, sewage is carried out deep purifying；E, remove the solid suspension of residual in biogas slurry by float sedimentation tank；F, then through photocatalyst system, biogas slurry is decoloured, and effectively kill the antibacterial in biogas slurry；G, after above-mentioned process, discharge water can be fully achieved Livestock pollution thing discharge standard, and flow out via outlet and utilize, and so achieves sewage purification and recycles。
2. sewage disposal system according to claim 1, it is characterized in that, described step b also comprises the steps b-1: the biogas residue precipitated becomes a blob of slag after filter pressing, is used for making compoiste fertilizer, and the waste liquid of extrusion is collected by pipeline and is back to biogas slurry collecting pit。
3. sewage disposal system according to claim 2, it is characterized in that, described deslagging pond is connected by Residue extraction pipeline with slag notch, the one end connected with biogas residue pond at described Residue extraction pipeline is provided with valve, biogas residue collected by described biogas residue pond becomes a blob of slag by pressure filter filter pressing, for making compoiste fertilizer, the waste liquid of extrusion is collected by pipeline and is back to biogas slurry collecting pit。
4. sewage disposal system according to claim 3, it is characterised in that described gas collection mouth is communicated to biogas generator or biogas burner。
5. sewage disposal system according to claim 4, it is characterised in that described biogas burner includes marsh gas stove, biogas lamp, Marsh gas water heater and biogas heat-insulating lamp。
6. sewage disposal system according to claim 5, it is characterised in that stop fermentation time in described methane-generating pit no less than 30 days, and with the above-mentioned time for a cycle, regularly the biogas residue in methane-generating pit is expelled to deslagging pond。
7. sewage disposal system according to claim 6, it is characterised in that described methane-generating pit is provided with multiple charging aperture, and described charging aperture is communicated to collecting pit by underground piping。
8. the workflow of sewage disposal system according to claim 7, it is characterized in that, collecting pit collects Excreta or sewage, by charging aperture, the Excreta collected or sewage are sent into methane-generating pit to ferment, in whole process, under the effect of air pressure and gravity, biogas can be gathered in the upper strata of methane-generating pit, biogas slurry is gathered in the middle level of methane-generating pit, biogas residue is deposited in the bottom of methane-generating pit, biogas slurry enters biogas slurry collecting pit by liquid outlet, by biogas slurry cleaning system, biogas slurry is carried out purified treatment and draw standard compliant scrubbing water, biogas connects biogas generator by gas outlet or biogas burner uses, biogas residue enters deslagging pond by Residue extraction pipeline, biogas residue carries out filter pressing, the biogas slurry being press-filtered out flows into biogas slurry collecting pit and carries out purified treatment, compoiste fertilizer made by a remaining blob of slag。
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| CN108658247A (en) * | 2018-05-21 | 2018-10-16 | 李霞芬 | Sewage disposal system |
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| CN104944486B (en) * | 2015-07-20 | 2017-05-17 | 周俊云 | Multifunctional sewage or waste water treatment equipment |
| CN105036477A (en) * | 2015-08-05 | 2015-11-11 | 枞阳县宇瑞环保科技有限公司 | Winery sewage treatment method |
| CN107235751A (en) * | 2016-03-28 | 2017-10-10 | 农业部规划设计研究院 | A kind of high-valued processing method of biogas slurry and biogas residue |
| CN106630282A (en) * | 2016-12-26 | 2017-05-10 | 航天凯天环保科技股份有限公司 | Method for treating biogas slurry in USR (up-flow solid reactor) methane tank |
| CN107117782B (en) * | 2017-07-03 | 2020-07-31 | 福建东森节能环保科技股份有限公司 | Zero-pollution emission treatment system and method for livestock and poultry breeding industry |
| CN107555710A (en) * | 2017-08-31 | 2018-01-09 | 宋宏婷 | Cultivate waste material ecological treatment system and method |
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Effective date of registration: 20160719 Address after: 516000 Guangdong city in Huizhou Province Ma Xinle Industrial Zone Guangshan road Xingmu building four floor Patentee after: HUIZHOU XINGMU ENVIRONMENTAL PROTECTION TECHNOLOGY CO., LTD. Address before: 516000 Ma Wai, Huicheng District, Guangdong, Huizhou Patentee before: Huizhou Xingmu Animal Husbandry Development Co., Ltd. |
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Address after: 516000, four floor, Xingmu building, Guang Shan Road, Xinle industrial area, Ma An Town, Huizhou, Guangdong. Patentee after: Huizhou Xingmu environmental protection Polytron Technologies Inc Address before: 516000, four floor, Xingmu building, Guang Shan Road, Xinle industrial area, Ma An Town, Huizhou, Guangdong. Patentee before: HUIZHOU XINGMU ENVIRONMENTAL PROTECTION TECHNOLOGY CO., LTD. |