CN104692600A - Method for filtering, concentrating and recycling water drained from anaerobic fermentation pond of livestock and poultry farm - Google Patents
Method for filtering, concentrating and recycling water drained from anaerobic fermentation pond of livestock and poultry farm Download PDFInfo
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Abstract
The invention discloses a method for filtering, concentrating and recycling water drained from an anaerobic fermentation pond of a livestock and poultry farm. The method for filtering, concentrating and recycling the water drained from the anaerobic fermentation pond of the livestock and poultry farm includes the following steps: S1, gathering waste water generated after anaerobic fermentation is carried out on excrement and urine in the pig farm, wherein the excrement and the urine in the pig farm and washing water are mixed to enter the anaerobic fermentation pond, and the water drained after anaerobic fermentation is carried out is filtered through sand to be gathered to enter a waste water pond; dry distillation is carried out on left residues, and livestock excrement active carbon, livestock excrement carbon and fuel gas formed by carrying out splitting decomposition on livestock excrement mixtures are obtained after dry distillation is carried out; S2, carrying out dual coarse filtering, wherein the waste water in the waster water pond is pumped by a water pump through a pipe valve into a front coarse filter element and a back coarse filter element to be coarsely filtered; S3, carrying out carbon filtering and fine filtering, wherein the filter liquor obtained after dual coarse filtering flows into a carbon filter element and a fine filter element for carbon filtering and fine filtering; S4, carrying out ultra-filtering, wherein the filter liquor obtained after carbon filtering and fine filtering flows into an ultra-filtering device for ultra-filtering, and the filter liquor obtained after ultra-filtering flows into a middle water tank; S5, carrying out standing, and discharging liquid; S6, carrying out low-pressure and high-pressure nano-filtering; S7, carrying out back washing, wherein back washing water flows into the middle water tank.
Description
Technical field
The present invention relates to animal waste innoxious process for treating field, the method for particularly a kind of livestock and poultry farm anaerobically fermenting pond water outlet filtering and concentrating recovery.
Background technology
Animal waste harmless treatment and recycling are developing direction and the inexorable trend of the filth disposal utilizations such as feces of livestock and poultry.But China livestock and poultry farm householder will concentrate on rural area, there is the problems such as the comprehensive benefit that Treatment process is single, tupe is backward, resource utilization is low and can not take into account resources and environment.In order to reduce the pollution that livestock and poultry cultivation produces environment, country has formulated more strict " livestock and poultry breeding industry pollution discharge standard " (exposure draft) and has intended in order to alternative GB18596-2001.At present, methane engineering technology has played central role in livestock and poultry farms in scale movement ecology, minimizing process and energy, recycling, is the main technique of China's process livestock breeding wastewater.
Anaerobic fermented liquid is the organic waste water not yet reaching discharging standards produced after biogas engineering process waste water of livestock poultry.But anaerobic fermented liquid or a kind of typical high-quality organic fertilizer, usually alkalescence on the weak side (the natural pond liquid pH that becomes thoroughly decomposed in methane phase stage is generally 7.0-8.5) in being, decarburize loss comparatively large (mainly CH4 and CO2) outward, still remain 90% material nutrient component, also containing 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. in anaerobic fermented liquid.The fruits and vegetables nitrate content using anaerobic fermented liquid reduces, Vc content improves, and quality obviously promotes.Report announcement in addition, 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, NH3-H or NH4+ of higher concentration, a large amount of VB12, plant hormone are as Plant hormones regulators,gibberellins, indolylacetic acid and organic acid, particularly butyric acid, have suppression and killing action to pathogenic bacteria and insect pest, crop disease-resistant insect pest ability strengthens.In addition, anaerobic fermented liquid also has the effect improving soil organic matter content and enrich soil nitrogen nutrient.
In recent years, to combine with conventional art by membrane concentration isolation technique or membrane separation technique and process fermentation waste water and obtain good effect.Membrane concentration isolation technique is applied to the enrichment method of anaerobic fermented liquid, and reformed AHP concentration technique Processes and apparatus, realize the embrane method continuous concentration process of anaerobic fermented liquid, both its volume was significantly decreased, be enriched again nutritive ingredient wherein, utilize and anti-season use the strange land realizing anaerobic fermented liquid, the anaerobic fermented liquid problem of outlet thoroughly solved under non-fertile season or breeding not matching situation is significant.
Through retrieval, associated authorization patent about Large-scale pig farm wastewater treatment 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 method (200810061050.5) of separating biological medicine fertilizer effective component from the liquid of natural pond, 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 efficiently processing Intensive Farm of Pig Raising waste water and recycling its effective nutritive ingredient, and effluent quality directly qualified discharge or reuse can rush the methodology on hurdle and the report of equipment and patent application openly.
Summary of the invention
The invention provides a kind of method that livestock and poultry farm anaerobically fermenting pond water outlet filtering and concentrating reclaims, the method that described livestock and poultry farm anaerobically fermenting pond water outlet filtering and concentrating reclaims comprises the steps:
Waste water after S1, 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 enters wastewater disposal basin after sand filtration; Remaining filter residue is carried out destructive distillation, after destructive distillation, obtains the combustion gas that animal manure gac, animal manure carbon and the cracking of animal manure mixture are formed;
S2, two-stage coarse filtration: with pipe valve the waste water in wastewater disposal basin pumped in front and back stages coarse filter element through water pump and carry out coarse filtration;
The filter of S3, charcoal and essence filter: the filtrate after two-stage coarse filtration flows in charcoal filter core and smart filter core carries out charcoal filter and essence filter;
S4, 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;
S5, to leave standstill: by adding microbial preparation 20 grams in the filtrate after every cubic metre of ultrafiltration at every turn, throw in 3 every day, throw in 5 days continuously, then left standstill for 1 week, liquid is discharged;
S6, low pressure and high pressure nanofiltration: enter filtrate in intermediate water tank after ultrafiltration and be pressurized to through topping-up pump and enter low pressure nanofiltration device after mould 4-5kg/cm2 and concentrate, dense water concentrates by entering high pressure nanofiltration device after another topping-up pump repressurize to mould 9-11kg/cm2, concentrated stream returns intermediate water tank, recirculation is carried out low pressure-high pressure nanofiltration and is concentrated, until concentrated solution cycles of concentration reaches 15-25 doubly, then take out concentrated solution storage or application; Water outlet reaches the People's Republic of China (PRC) " livestock and poultry breeding industry pollutant emission standard " (GB18596-2001), flows into water tank, makes film device wash-down water and the swinery wash-down water of equipment;
S7, back flushing: the piggery wastewater of a batch is through cascade filtration concentration and after taking out concentrated solution, carry out back flushing respectively with the water outlet of low pressure-high pressure nanofiltration device to ultra-filtration equipment, low pressure nanofiltration device and high pressure nanofiltration device, wash-down water flows into intermediate water tank.
In the method that livestock and poultry farm anaerobically fermenting pond water outlet filtering and concentrating of the present invention reclaims,
Described microbial preparation is made up of activeconstituents and carrier; Described activeconstituents is made up of the raw material bacterium of following weight parts: nitrococcus 9 parts, thiobacillus denitrificans 6 parts, Pseudomonas stutzeri 8 parts, Sphingomonas 7 parts, Acidithiobacillus ferrooxidans strain GF 8 parts, Bacillus licheniformis 8 parts, Phanerochaete chrysosporium 4 parts, Arthrobacter globiformis 2 parts, rhodococcus 2 parts, bacillus cereus 1 part; Described carrier by turfy soil, sawdust and diatomite according to 3: 2: 1 mass ratio be mixed to get; The preparation method of described microbial preparation is: by described activeconstituents and described carrier according to 1: 1 weight ratio mix, stir, cryodrying at then putting 4 DEG C, after dry, water content control is at 2-5%.
In the method that livestock and poultry farm anaerobically fermenting pond water outlet filtering and concentrating of the present invention reclaims, in described step S1, destructive distillation treating processes is included in low-temperature zone preheating 3-4h, at middle-temperature section process 2 ~ 2.5h, at high temperature section process 1 ~ 3h; Described low temperature is 170 ~ 220 DEG C; Described middle temperature is 550 ~ 580 DEG C; Described high temperature is 1100 ~ 1200 DEG C.
The method that livestock and poultry farm anaerobically fermenting pond water outlet filtering and concentrating of the present invention reclaims, by carrying out destructive distillation to the residue after anaerobically fermenting, obtain the combustion gas that animal manure gac, animal manure carbon and the cracking of animal manure mixture are formed after destructive distillation, make use of the heat energy in residue fully; Then by a series for the treatment of processess such as two-stage coarse filtration, charcoal filter and essence filter, ultrafiltration, standing, low pressure and high pressure nanofiltration, back flushinges; qualified discharge water is become to drop into recycling the urine water treatment of the pig farm of severe contamination; more the nutrient in Wastewater from Pig Farm can be utilized by effective concentration and recovery; solve the breeding wastewater problem of outlet do not matched in non-fertilizer season or breeding in situation, to the Sustainable development of large-scale cultivation industry and environment protection significant.
Embodiment
The method that livestock and poultry farm anaerobically fermenting pond water outlet filtering and concentrating reclaims, the method that described livestock and poultry farm anaerobically fermenting pond water outlet filtering and concentrating reclaims comprises the steps:
Waste water after S1, 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 enters wastewater disposal basin after sand filtration; Remaining filter residue is carried out destructive distillation, after destructive distillation, obtains the combustion gas that animal manure gac, animal manure carbon and the cracking of animal manure mixture are formed;
S2, two-stage coarse filtration: with pipe valve the waste water in wastewater disposal basin pumped in front and back stages coarse filter element through water pump and carry out coarse filtration; , coarse filter element specification is 25-35 μm.
The filter of S3, charcoal and essence filter: the filtrate after two-stage coarse filtration flows in charcoal filter core and smart filter core carries out charcoal filter and essence filter; , filter core specification is respectively 5-10 μm and 1-2 μm.
S4, 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; The mould material that ultra-filtration equipment is selected is polysulfone membrane, and specification is 50-150KD.
S5, to leave standstill: by adding microbial preparation 20 grams in the filtrate after every cubic metre of ultrafiltration at every turn, throw in 3 every day, throw in 5 days continuously, then left standstill for 1 week, liquid is discharged;
S6, low pressure and high pressure nanofiltration: enter filtrate in intermediate water tank after ultrafiltration and be pressurized to through topping-up pump and enter low pressure nanofiltration device after mould 4-5kg/cm2 and concentrate, dense water concentrates by entering high pressure nanofiltration device after another topping-up pump repressurize to mould 9-11kg/cm2, concentrated stream returns intermediate water tank, recirculation is carried out low pressure-high pressure nanofiltration and is concentrated, until concentrated solution cycles of concentration reaches 15-25 doubly, then take out concentrated solution storage or application; Water outlet reaches the People's Republic of China (PRC) " livestock and poultry breeding industry pollutant emission standard " (GB18596-2001), flows into water tank, makes film device wash-down water and the swinery wash-down water of equipment; The mould material that low pressure and high pressure nanofiltration device are selected is polyamide membrane, and specification is 200-500D.
S7, back flushing: the piggery wastewater of a batch is through cascade filtration concentration and after taking out concentrated solution, carry out back flushing respectively with the water outlet of low pressure-high pressure nanofiltration device to ultra-filtration equipment, low pressure nanofiltration device and high pressure nanofiltration device, wash-down water flows into intermediate water tank.
In the method that livestock and poultry farm anaerobically fermenting pond water outlet filtering and concentrating of the present invention reclaims,
Described microbial preparation is made up of activeconstituents and carrier; Described activeconstituents is made up of the raw material bacterium of following weight parts: nitrococcus 9 parts, thiobacillus denitrificans 6 parts, Pseudomonas stutzeri 8 parts, Sphingomonas 7 parts, Acidithiobacillus ferrooxidans strain GF 8 parts, Bacillus licheniformis 8 parts, Phanerochaete chrysosporium 4 parts, Arthrobacter globiformis 2 parts, rhodococcus 2 parts, bacillus cereus 1 part; Described carrier by turfy soil, sawdust and diatomite according to 3: 2: 1 mass ratio be mixed to get; The preparation method of described microbial preparation is: by described activeconstituents and described carrier according to 1: 1 weight ratio mix, stir, cryodrying at then putting 4 DEG C, after dry, water content control is at 2-5%.
In the method that livestock and poultry farm anaerobically fermenting pond water outlet filtering and concentrating of the present invention reclaims, in described step S1, destructive distillation treating processes is included in low-temperature zone preheating 3-4h, at middle-temperature section process 2 ~ 2.5h, at high temperature section process 1 ~ 3h; Described low temperature is 170 ~ 220 DEG C; Described middle temperature is 550 ~ 580 DEG C; Described high temperature is 1100 ~ 1200 DEG C.
(1) before utilizing the method process of the embodiment of the present invention, each index of piggery wastewater is as follows: pH 8.0, TN0.07%, NH
3-N 429.7mg/L, TP 0.05g/L, TK 0.34g/L, turbidity 111.0NTU, specific conductivity 6760 μ s/cm, COD
cr953.8mg/L.
(2), after utilizing the method process of the embodiment of the present invention, the conventional nutrients of recovery is as follows:
(3), after utilizing the method process of the embodiment of the present invention, the Trace Elements of recovery is as follows:
(4), after utilizing the method process of the embodiment of the present invention, the active nutrient component of recovery is as follows:
(5), after utilizing the method process of the embodiment of the present invention, the plant-sourced hormonal components of recovery is as follows:
(6) after utilizing the method process of the embodiment of the present invention, effluent quality:
The method that livestock and poultry farm anaerobically fermenting pond water outlet filtering and concentrating of the present invention reclaims, by carrying out destructive distillation to the residue after anaerobically fermenting, obtain the combustion gas that animal manure gac, animal manure carbon and the cracking of animal manure mixture are formed after destructive distillation, make use of the heat energy in residue fully; Then by a series for the treatment of processess such as two-stage coarse filtration, charcoal filter and essence filter, ultrafiltration, standing, low pressure and high pressure nanofiltration, back flushinges; qualified discharge water is become to drop into recycling the urine water treatment of the pig farm of severe contamination; more the nutrient in Wastewater from Pig Farm can be utilized by effective concentration and recovery; solve the breeding wastewater problem of outlet do not matched in non-fertilizer season or breeding in situation, to the Sustainable development of large-scale cultivation industry and environment protection significant.
The foregoing is only embodiments of the invention; not thereby the scope of the claims of the present invention is limited; every utilize description of the present invention to do equivalent structure or equivalent flow process conversion; or be directly or indirectly used in other relevant technical field, be all in like manner included in scope of patent protection of the present invention.
Claims (3)
1. a method for livestock and poultry farm anaerobically fermenting pond water outlet filtering and concentrating recovery, is characterized in that, the method that described livestock and poultry farm anaerobically fermenting pond water outlet filtering and concentrating reclaims comprises the steps:
Waste water after S1, 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 enters wastewater disposal basin after sand filtration; Remaining filter residue is carried out destructive distillation, after destructive distillation, obtains the combustion gas that animal manure gac, animal manure carbon and the cracking of animal manure mixture are formed;
S2, two-stage coarse filtration: with pipe valve the waste water in wastewater disposal basin pumped in front and back stages coarse filter element through water pump and carry out coarse filtration;
The filter of S3, charcoal and essence filter: the filtrate after two-stage coarse filtration flows in charcoal filter core and smart filter core carries out charcoal filter and essence filter;
S4, 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;
S5, to leave standstill: by adding microbial preparation 20 grams in the filtrate after every cubic metre of ultrafiltration at every turn, throw in 3 every day, throw in 5 days continuously, then left standstill for 1 week, liquid is discharged;
S6, low pressure and high pressure nanofiltration: enter filtrate in intermediate water tank after ultrafiltration and be pressurized to through topping-up pump and enter low pressure nanofiltration device after mould 4-5kg/cm2 and concentrate, dense water concentrates by entering high pressure nanofiltration device after another topping-up pump repressurize to mould 9-11kg/cm2, concentrated stream returns intermediate water tank, recirculation is carried out low pressure-high pressure nanofiltration and is concentrated, until concentrated solution cycles of concentration reaches 15-25 doubly, then take out concentrated solution storage or application; Water outlet reaches the People's Republic of China (PRC) " livestock and poultry breeding industry pollutant emission standard " (GB18596-2001), flows into water tank, makes film device wash-down water and the swinery wash-down water of equipment;
S7, back flushing: the piggery wastewater of a batch is through cascade filtration concentration and after taking out concentrated solution, carry out back flushing respectively with the water outlet of low pressure-high pressure nanofiltration device to ultra-filtration equipment, low pressure nanofiltration device and high pressure nanofiltration device, wash-down water flows into intermediate water tank.
2. the method for livestock and poultry farm anaerobically fermenting pond water outlet filtering and concentrating recovery as claimed in claim 1, is characterized in that,
Described microbial preparation is made up of activeconstituents and carrier; Described activeconstituents is made up of the raw material bacterium of following weight parts: nitrococcus 9 parts, thiobacillus denitrificans 6 parts, Pseudomonas stutzeri 8 parts, Sphingomonas 7 parts, Acidithiobacillus ferrooxidans strain GF 8 parts, Bacillus licheniformis 8 parts, Phanerochaete chrysosporium 4 parts, Arthrobacter globiformis 2 parts, rhodococcus 2 parts, bacillus cereus 1 part; Described carrier by turfy soil, sawdust and diatomite according to 3: 2: 1 mass ratio be mixed to get; The preparation method of described microbial preparation is: by described activeconstituents and described carrier according to 1: 1 weight ratio mix, stir, cryodrying at then putting 4 DEG C, after dry, water content control is at 2-5%.
3. the method for livestock and poultry farm anaerobically fermenting pond water outlet filtering and concentrating recovery as claimed in claim 1, it is characterized in that, in described step S1, destructive distillation treating processes is included in low-temperature zone preheating 3-4h, at middle-temperature section process 2 ~ 2.5h, at high temperature section process 1 ~ 3h; Described low temperature is 170 ~ 220 DEG C; Described middle temperature is 550 ~ 580 DEG C; Described high temperature is 1100 ~ 1200 DEG C.
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106587538A (en) * | 2017-01-10 | 2017-04-26 | 上海应用技术大学 | Method for treating excrement and urine wastes |
| CN106630477A (en) * | 2017-01-10 | 2017-05-10 | 上海应用技术大学 | Device for treating excrement and urine sewage |
| CN107573112A (en) * | 2017-09-30 | 2018-01-12 | 福建省农科农业发展有限公司 | The compound additive of dystopy fermentation bed treatment for cow manure ability is lifted under a kind of low temperature environment |
| CN108727071A (en) * | 2018-07-03 | 2018-11-02 | 深圳市朗坤环境集团股份有限公司 | A kind of method of livestock and poultry feces recycling |
| CN112300943A (en) * | 2020-11-03 | 2021-02-02 | 东台市赐百年生物工程有限公司 | Preparation method of organic biogas slurry for microalgae cultivation |
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| JPS62289298A (en) * | 1986-06-10 | 1987-12-16 | Kiyoshi Aoshima | Treatment of excrement, urine, organic sludge and sewage or the like |
| CN102642985A (en) * | 2012-04-23 | 2012-08-22 | 南京师范大学 | Method and system for treatment and recycling of feces and waste from livestock and poultry culture |
| CN103382057A (en) * | 2013-07-28 | 2013-11-06 | 华盛江泉集团有限公司 | Method for treating cultivation wastewater |
| CN103708678A (en) * | 2013-12-19 | 2014-04-09 | 浙江农林大学 | Method for multi-stage filtration of pig farm wastewater and for recovery of nutrients |
| CN104355520A (en) * | 2014-11-25 | 2015-02-18 | 中南林业科技大学 | Method for treating excrements in farm |
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| JPS62289298A (en) * | 1986-06-10 | 1987-12-16 | Kiyoshi Aoshima | Treatment of excrement, urine, organic sludge and sewage or the like |
| CN102642985A (en) * | 2012-04-23 | 2012-08-22 | 南京师范大学 | Method and system for treatment and recycling of feces and waste from livestock and poultry culture |
| CN103382057A (en) * | 2013-07-28 | 2013-11-06 | 华盛江泉集团有限公司 | Method for treating cultivation wastewater |
| CN103708678A (en) * | 2013-12-19 | 2014-04-09 | 浙江农林大学 | Method for multi-stage filtration of pig farm wastewater and for recovery of nutrients |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106587538A (en) * | 2017-01-10 | 2017-04-26 | 上海应用技术大学 | Method for treating excrement and urine wastes |
| CN106630477A (en) * | 2017-01-10 | 2017-05-10 | 上海应用技术大学 | Device for treating excrement and urine sewage |
| CN107573112A (en) * | 2017-09-30 | 2018-01-12 | 福建省农科农业发展有限公司 | The compound additive of dystopy fermentation bed treatment for cow manure ability is lifted under a kind of low temperature environment |
| CN108727071A (en) * | 2018-07-03 | 2018-11-02 | 深圳市朗坤环境集团股份有限公司 | A kind of method of livestock and poultry feces recycling |
| CN112300943A (en) * | 2020-11-03 | 2021-02-02 | 东台市赐百年生物工程有限公司 | Preparation method of organic biogas slurry for microalgae cultivation |
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Application publication date: 20150610 |