CN103723846A - Multistage filtering device for recovering nutrients in wastewater in livestock and poultry farm - Google Patents
Multistage filtering device for recovering nutrients in wastewater in livestock and poultry farm Download PDFInfo
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- CN103723846A CN103723846A CN201310703954.4A CN201310703954A CN103723846A CN 103723846 A CN103723846 A CN 103723846A CN 201310703954 A CN201310703954 A CN 201310703954A CN 103723846 A CN103723846 A CN 103723846A
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Abstract
The invention relates to a multistage filtering device for recovering nutrients in wastewater in a livestock and poultry farm. According to the wastewater treatment technical process, a wastewater tank (1), a booster pump (2), two stages of rought filter elements (3), a char filter element (4), a fine filter element (5), an ultrafilter (6), an intermediate tank (7), a booster second pump and low-pressure nanofiltration device (8), a booster third pump and high-pressure nanofiltration device (9), a water outlet pump (10) and a back flushing booster pump are sequentially connected in series from front to back; all the parts are connected in series by water pipes (11); valves (12) are arranged in the water pipes (11); each booster pump is provided with a matched pressure gauge (13). The device is specially used for treating and recycling the wastewater in the livestock and poultry farm, has the advantages of not only enabling the polluted wastewater to reach the standard to be drained after being treated, but also carrying out concentration utilization on nutrients in fecaluria, particularly can effectively solve the problem of wastewater outlet under the condition that the non-fertilization season of the planting industry is not matched with the planting and breeding industry, and has great significance on the aspects of prompting sustainable development of the scale breeding industry and protecting the environment.
Description
Technical field
The present invention relates to a kind of filtration unit, specifically to stock keeping poultry-farm fecaluria and wash-down water, the waste water after anaerobically fermenting carries out cascade filtration and reclaims the device of nutrient and qualified discharge water.
Background technology
Animal waste harmless treatment and recycling are developing direction and the inexorable trends that the filth disposals such as feces of livestock and poultry utilize.But China livestock and poultry farm householder will concentrate on rural area, have that improvement technology is single, tupe is backward, resource utilization is low and can not take into account the problems such as the comprehensive benefit of resources and environment.Pollution environment being produced in order to reduce livestock and poultry cultivation, country has formulated more strict < < livestock and poultry breeding industry pollution discharge standard > > (exposure draft) and has intended in order to substitute GB18596-2001.At present, methane engineering technology has been brought into play central role in livestock and poultry farms in scale movement ecology, minimizing processing and energy, recycling, is the main technique that China processes livestock breeding wastewater.
Anaerobic fermented liquid is that biogas engineering is processed the organic waste water that not yet reaches discharging standards producing after waste water of livestock poultry.But anaerobic fermented liquid or a kind of typical high-quality organic fertilizer, alkalescence on the weak side in being conventionally (the natural pond liquid pH that becomes thoroughly decomposed that produces methane phase is generally 7.08.5), decarburize loss (is mainly CH greatly
4and CO
2) outside, still retain 90% material nutrient component, in anaerobic fermented liquid, also contained abundant trace element (as Fe, Zn, Cu, B, Mo etc.), various plants growth hormone (as Plant hormones regulators,gibberellins, indolylacetic acid etc.), vitamin B group and some antibiotic etc.The fruits and vegetables nitrate content of using anaerobic fermented liquid reduces, Vc content improves, and quality obviously promotes.Also have report to disclose, anaerobic fermented liquid has good prevention effect to 23 of 19 kinds of crops kinds of diseases, 19 kinds of insect pests.Nutritive ingredient abundant in anaerobic fermented liquid promotes crop growth, the NH of higher concentration
3-h or NH
4 +, a large amount of V
b12, plant hormone is as Plant hormones regulators,gibberellins, indolylacetic acid and organic acid, particularly butyric acid, and pathogenic bacteria and insect pest are had and suppressed and killing action, crop disease-resistant insect pest ability strengthens.In addition, anaerobic fermented liquid also has the effect that improves soil organic matter content and enrich soil nitrogen nutrient.
In recent years, by membrane concentration isolation technique or membrane separation technique, combine to process fermentation waste water with conventional art and obtain good effect.Membrane concentration isolation technique is applied to the enrichment method of anaerobic fermented liquid, and improve and innovate concentration technique Processes and apparatus, realize the embrane method continuous concentration processing of anaerobic fermented liquid, both significantly reduced its volume, again enrichment nutritive ingredient wherein, to realizing, the strange land of anaerobic fermented liquid utilizes and anti-season is used, and thoroughly solves non-that with fertilizer season or breeding, not match anaerobic fermented liquid problem of outlet in situation significant.
Through retrieval, associated authorization patent about the wastewater treatment of large-scale cultivation field is more, as a kind of natural pond liquid precise filtering device and filter method (201110117871.8), the treatment process (201110211338.8) of pollution biogas slurry of poultry and livestock breeding, the method (201210301484.4) of a kind of natural pond liquid polycomponent whole process resource utilization, a kind of from the liquid of natural pond the method (200810061050.5) of separating biological medicine fertilizer effective component, livestock and poultry cultivation contamination biogas slurry ecological treatment apparatus and method (200810120398.7), natural pond liquid precipitate, aeration, filter, proportioning, increase water-soluble oxygen fertilizing equipment (200910146927.5) etc., but, have no so far and utilize multiple filtration unit, series connection ultrafiltration nanofiltration membrane component coupling assembling, for efficient, process intensive culture field waste water and recycle its effective nutritive ingredient, and effluent quality document announcement and Patent Application Publication that directly a set of equipment on hurdle is rushed in qualified discharge or reuse.
Summary of the invention
The technical problem to be solved in the present invention is to design a kind of Multistage filtering device of livestock and poultry farm waste water reclamation nutrient.
Solve the problems of the technologies described above and adopt following technical scheme:
1, the Multistage filtering device of this livestock and poultry farm waste water reclamation nutrient, comprise pond, tubing, strainer, topping-up pump and tensimeter, it is characterized in that being in series with successively from front to back wastewater disposal basin by sewage treatment technology process, topping-up pump, two-stage coarse filter element, charcoal filter core, essence filter core, ultra-fine filter, intermediate pool, supercharging two pumps and low pressure nanofiltration device, supercharging three pumps and high pressure nanofiltration device, outlet sump and back flushing topping-up pump, between each parts, there is hydraulic pipe series connection, in hydraulic pipe, there is valve, each topping-up pump all has supporting tensimeter, back flushing topping-up pump and ultra-fine filter, intermediate pool, between low pressure nanofiltration device and high pressure nanofiltration device, separately there are hydraulic pipe and the valve of the back flushing of being exclusively used in.
The specification of described coarse filter element, charcoal filter core and smart filter core is respectively 25-35 μ m, 5-10 μ m and 1-2 μ m.
Ultra-filtration membrane in described ultra-fine filter is polysulfone membrane, and specification is 50-150KD.
Nanofiltration membrane in described low pressure nanofiltration device and high pressure nanofiltration device is polyamide membrane, and specification is 200-500D, and pressure increases to respectively 4-5kg/cm
2and 9-11kg/cm
2.
The invention has the beneficial effects as follows: adopt livestock and poultry fecaluria, wash-down water, the foreign material of this device to livestock and poultry farm to carry out the waste water after anaerobically fermenting; by cascade filtration, concentrate; both plant's fecaluria water treatment of severe contamination can be become to qualified discharge water; drop into recycling; more can the nutrient in fecaluria is effectively concentrated; recycle, solve non-and do not match the breeding wastewater problem of outlet in situation with fertilizer season or breeding, significant to the Sustainable development of large-scale cultivation industry and environment protection.
Accompanying drawing explanation
Accompanying drawing is this apparatus structure schematic diagram.
Embodiment
The present invention is described in detail below in conjunction with embodiment and with reference to accompanying drawing: referring to accompanying drawing,
The Multistage filtering device of this livestock and poultry farm waste water reclamation nutrient, comprise pond, tubing 11, strainer, topping-up pump 2 and tensimeter 13, by sewage treatment technology process, be in series with successively from front to back wastewater disposal basin 1, topping-up pump 2, two-stage coarse filter element 3, charcoal filter core 4, essence filter core 5, ultra-fine filter 6, intermediate pool 7, supercharging two pumps and low pressure nanofiltration device 8, supercharging three pumps and high pressure nanofiltration device 9, outlet sump 10 and back flushing topping-up pump, between each parts, there is hydraulic pipe 11 to connect, in hydraulic pipe, there is valve 12, each topping-up pump all has supporting tensimeter 13, back flushing topping-up pump and ultra-fine filter, intermediate pool, between low pressure nanofiltration device and high pressure nanofiltration device, separately there are hydraulic pipe and the valve of the back flushing of being exclusively used in.
The specification of described coarse filter element 3, charcoal filter core 4 and smart filter core 5 is respectively 25-35 μ m, 5-10 μ m and 1-2 μ m.
Ultra-filtration membrane in described ultra-fine filter 6 is polysulfone membrane, and specification is 50-150KD.
Nanofiltration membrane in described low pressure nanofiltration device 8 and high pressure nanofiltration device 9 is polyamide membrane, and specification is 200-500D, and pressure increases to respectively 4-5kg/cm
2and 9-11kg/cm
2.
This device (on the same day separately application method patent) when concrete application, is undertaken by following step:
(1) waste water after pig farm fecaluria anaerobically fermenting collects: pig farm fecaluria and wash-down water are mixed into anaerobically fermenting pond, and the water outlet after anaerobically fermenting collects and after sand filtration, enters wastewater disposal basin:
(2) two-stage coarse filtration: the waste water in wastewater disposal basin is pumped into and carries out coarse filtration in front and back stages coarse filter element through water pump with pipe valve:
(3) charcoal filter and essence filter: carry out charcoal filter and essence filter in the filtrate inflow charcoal filter core after two-stage coarse filtration and smart filter core:
(4) ultrafiltration: the filtrate flow after charcoal filter and essence filter enters in ultra-filtration equipment to carry out ultrafiltration, and the filtrate after ultrafiltration flows into intermediate water tank:
(5) low pressure and high pressure nanofiltration: low pressure and high pressure nanofiltration device adopt two-stage tandem pattern, and the filtrate entering after ultrafiltration in intermediate water tank is pressurized to mould 4-5kg/cm through topping-up pump
2after to enter low pressure nanofiltration device concentrated, dense water continues to be pressurized to mould 9-11kg/cm by another topping-up pump
2after to enter high pressure nanofiltration device concentrated, concentrated stream returns intermediate water tank, then repeat the nanofiltration of low pressure-high pressure concentrated, until concentrated solution cycles of concentration reaches 15-25 doubly, then taking out concentrated solution stores or applies: water outlet reaches the < < of People's Republic of China (PRC) livestock and poultry breeding industry pollutant emission standard > > (GB185962001), flow into water tank, make backwashing water and the livestock and poultry farm wash-down water of the film device of equipment:
(6) back flushing: the piggery wastewater of a batch is through cascade filtration concentration and from taking out intermediate pool after concentrated solution, with the water outlet of low pressure-high pressure nanofiltration device, respectively ultra-filtration equipment, low pressure nanofiltration device and high pressure nanofiltration device are carried out to back flushing, wash-down water flows into intermediate water tank.
Below the result that adopts this device to carry out concrete test is described below:
(1) before utilizing this device to process, the each index of piggery wastewater is as follows: pH8.0, TN0.07%, NH
3-N429.7mg/L, TP0.05g/L, TK0.34g/L, turbidity 111.0NTU, specific conductivity 6760 μ s/cm, COD
cr953.8mg/L.
(2) after utilizing this device to process, the conventional nutritive ingredient of recovery is as follows:
(3) after utilizing this device to process, the Trace Elements of recovery is as follows:
(4) after utilizing this device to process, the active nutrient component of recovery is as follows:
(5) after utilizing this device to process, the plant-sourced hormone composition of recovery is as follows:
(6) after utilizing this device to process, effluent quality:
Claims (4)
1. the Multistage filtering device of a livestock and poultry farm waste water reclamation nutrient, comprise pond, tubing (11), strainer, topping-up pump (2) and tensimeter (13), it is characterized in that being in series with successively from front to back wastewater disposal basin (1) by sewage treatment technology process, topping-up pump (2), two-stage coarse filter element (3), charcoal filter core (4), essence filter core (5), ultra-fine filter (6), intermediate pool (7), supercharging two pumps and low pressure nanofiltration device (8), supercharging three pumps and high pressure nanofiltration device (9), outlet sump (10) and back flushing topping-up pump, between each parts, there is hydraulic pipe (11) series connection, in hydraulic pipe, there is valve (12), each topping-up pump all has supporting pressure Yuan (13), back flushing topping-up pump and ultra-fine filter, intermediate pool, between low pressure nanofiltration device and high pressure nanofiltration device, separately there are hydraulic pipe and the valve of the back flushing of being exclusively used in.
2. the Multistage filtering device of livestock and poultry farm waste water reclamation nutrient as claimed in claim 1, is characterized in that the specification of described coarse filter element (3), charcoal filter core (4) and smart filter core (5) is respectively 25-35 μ m, 5-10 μ m and 1-2 μ m.
3. the Multistage filtering device of livestock and poultry farm waste water reclamation nutrient as claimed in claim 1, is characterized in that the ultra-filtration membrane in described ultra-fine filter (6) is polysulfone membrane, and specification is 50-150KD.
4. the Multistage filtering device of livestock and poultry farm waste water reclamation nutrient as claimed in claim 1, it is characterized in that the nanofiltration membrane in described low pressure nanofiltration device (8) and high pressure nanofiltration device (9) is polyamide membrane, specification is 200-500D, and pressure increases to respectively 4-5kg/cm
2and 9-11kg/cm
2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310703954.4A CN103723846A (en) | 2013-12-19 | 2013-12-19 | Multistage filtering device for recovering nutrients in wastewater in livestock and poultry farm |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310703954.4A CN103723846A (en) | 2013-12-19 | 2013-12-19 | Multistage filtering device for recovering nutrients in wastewater in livestock and poultry farm |
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| Publication Number | Publication Date |
|---|---|
| CN103723846A true CN103723846A (en) | 2014-04-16 |
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ID=50448190
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104710030A (en) * | 2015-03-31 | 2015-06-17 | 浙江农林大学 | Anaerobic fermentation tank effluent filtering/concentrating/recovering device of livestock and poultry farm |
| CN105000761A (en) * | 2015-08-19 | 2015-10-28 | 福建省农业科学院农业生态研究所 | Method for removing nitrogen elements in high-density fish culture circulating water |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202465451U (en) * | 2011-11-30 | 2012-10-03 | 杭州市人民政府农村能源办公室 | Landfill leachate treatment system |
| CN202508925U (en) * | 2012-04-23 | 2012-10-31 | 宁波龙兴生态农业科技开发有限公司 | Biogas liquid biofiltration device |
-
2013
- 2013-12-19 CN CN201310703954.4A patent/CN103723846A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202465451U (en) * | 2011-11-30 | 2012-10-03 | 杭州市人民政府农村能源办公室 | Landfill leachate treatment system |
| CN202508925U (en) * | 2012-04-23 | 2012-10-31 | 宁波龙兴生态农业科技开发有限公司 | Biogas liquid biofiltration device |
Non-Patent Citations (1)
| Title |
|---|
| 韩瑾: ""沼液膜浓缩分离及其液肥混配技术研究"", 《中国优秀硕士学位论文全文数据库 工程科技Ⅰ辑》, no. 2, 15 December 2011 (2011-12-15) * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104710030A (en) * | 2015-03-31 | 2015-06-17 | 浙江农林大学 | Anaerobic fermentation tank effluent filtering/concentrating/recovering device of livestock and poultry farm |
| CN105000761A (en) * | 2015-08-19 | 2015-10-28 | 福建省农业科学院农业生态研究所 | Method for removing nitrogen elements in high-density fish culture circulating water |
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Application publication date: 20140416 |