CN104355500B - A kind of Process for Treatment of Swine Wastewater and circulation reuse method - Google Patents
A kind of Process for Treatment of Swine Wastewater and circulation reuse method Download PDFInfo
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- CN104355500B CN104355500B CN201410657169.4A CN201410657169A CN104355500B CN 104355500 B CN104355500 B CN 104355500B CN 201410657169 A CN201410657169 A CN 201410657169A CN 104355500 B CN104355500 B CN 104355500B
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Abstract
The invention discloses a kind of Process for Treatment of Swine Wastewater and circulation reuse method, step is: pig farm breeding wastewater first processes through anaerobic biogas generating pit (tower), the natural pond liquid produced enters Ye Chu pond, natural pond, then anaerobic baffle plate biological reaction tank is flowed into successively by pipeline, anaerobe film reaction pond, processed to sequence batch (biological reaction tank by water pump lifting afterwards, water outlet enters sterilization reuse pool through water decanter, reuse water is promoted to pig house with pump after adding environmental friendliness microbial preparation and rushes hurdle, rushing hurdle water enters in methane-generating pit (tower) with other sewage once more, realize circulation, the mud that sewage treatment unit at different levels produces after sludge drying bed mummification with making fertilizer.Water outlet after process, after sterilization, is added environmental friendliness microbial preparation and is used for pig house and rushes hurdle, realizes resource utilization reuse after Process for Treatment of Swine Wastewater on the one hand, saving water resource, on the one hand due to the use of environmental friendliness microbial preparation, can significantly reduce pig house stink, improve pig house environment.
Description
Technical field
The present invention relates to field of environment pollution control, be specifically related to a kind of Process for Treatment of Swine Wastewater and circulation reuse method.
Background technology
Along with reform and opening-up, the raising of people's living standard, people are to the increase of carnivorous demand, and nearly more than two decades comes, China's livestock and poultry breeding industry fast development, and mass-producing, intensive trend are more and more obvious, wherein, outstanding with pig industry again.Large scale of pig farm provides the pork of cheapness, safety for people to a certain extent, but its concentrate, the excrement of high density dirt discharge causes immense pressure to environment.
Piggery wastewater is mainly derived from the urine of pig, ight soil transudate and pig farm wash-down water, wherein containing bulky stool slag, organic pollutant and nitrogen, phosphorus, research shows, in piggery wastewater, COD is up to 5000-20000mg/L, ammonia nitrogen concentration is up to 800-2000mg/L, concentration of suspension (TSS) is also up to more than 2000mg/L, and exceed standard decades of times.This high-concentration waste water is as directly discharged will produce huge pollution to surrounding enviroment without process.And China's pig-breeding is huge, total amount of pollutants discharge is surprising.
At present, the treatment technology of piggery wastewater tentatively can be divided into three major types, is respectively also field facture, natural facture and industrial department logos.Also field facture is the main flow treatment process of the states such as America and Europe, and its feature is that waste water makees fertilizer for going back field, and processing cost is cheap, but requires a large amount of supporting soils, and this method is difficult to large-scale promotion in China at present.Nature facture comprises the treatment process such as oxidation pond, artificial swamp, detergent power mainly by natural ecosystems purifies waste water, this class methods processing cost is moderate, simple to operate, but treatment effect is limited, along with the raising of country to livestock and poultry breeding industry pollution exhaust criteria and the reinforcement of management, such technology is difficult to meet qualified discharge requirement.Industrial department logos comprises aerobic treatment method, anaerobic treatment method and combined treatment process, and the most flow process with reference to Industrial Waste Water Treatments of these class methods designs at present, and capital construction and running cost are all higher, unsatisfactory in the popularization of pig-breeding industry.Therefore, in conjunction with the feature of China's present situation and wastewater from pig farm, be badly in need of there is new, that be more suitable for China's mass-producing pig-breeding feature, low-cost processes technology at present.
In addition, also there is two large problems in large-scale pig farm breeding process, and one is that water consumption is large, and two is that pig farm periphery stink is obvious, disturbs residents serious.Breeding water aspect, the average water consumption of growing and fattening pigs every day is about 10-20 liter, and a standard ten thousand pig farms (the livestock on hand 5000) water consumption of a year is about 1.825-3.65 ten thousand tons, and the consumption of pig-breeding to water resources is huge.Foul smell aspect, mainly concentrated owing to cultivating, a large amount of live pig is crowded in narrow and small pig house, and the excrement of excretion is dirty, urine is piled up in pig house, although every day, use water rinsed, stink still clearly.Therefore, how to reduce the use water in pig-breeding process, effectively utilize water resources, reduce the stink in breeding process, improving plant's environment is also the problem that pig-breeding industry must effectively solve.
The present situation current in view of China's pig-breeding industry and the problems referred to above, the present invention devises the novel process of a set of Process for Treatment of Swine Wastewater and reuse, this technique realizes the efficient process of piggery wastewater on the one hand by combined sewage water treatment process, on the other hand, by processing the application of rushing hurdle reuse and environmental friendliness microbial preparation of rear water outlet, effectively achieve the recycling of piggery wastewater and the elimination of pig farm stink.
Summary of the invention
A kind of Process for Treatment of Swine Wastewater and circulation reuse method are the object of this invention is to provide, method of the present invention realizes efficient, the process at a low price of piggery wastewater, and realize sewage recycling reuse, in reuse process, eliminate pig house stink simultaneously, improve pig farm surrounding enviroment.
To achieve these goals, technical scheme of the present invention is:
Invention thinking of the present invention is: piggery wastewater, after multistage-combination cell processing, adds environmental friendliness microbial preparation, can realize pig house and rush hurdle reuse, thus realize piggery wastewater zero release.
A kind of Process for Treatment of Swine Wastewater and circulation reuse method, comprise the following steps:
Pig farm breeding wastewater is first through anaerobic biogas generating pit or the process of biogas tower, the natural pond liquid produced enters natural pond liquid storage pool, then anaerobic baffle plate biological reaction tank is flowed into successively by pipeline, anaerobe film reaction pond, processed to sequence batch (biological reaction tank by water pump lifting afterwards, water outlet enters sterilization reuse pool through water decanter, reuse water is promoted to pig house with pump after adding environmental friendliness microbial preparation and rushes hurdle, rushing hurdle water enters in methane-generating pit (tower) with other sewage once more, realize circulation, the mud that sewage treatment unit at different levels produces is used as fertilizer after sludge drying bed mummification.
Described pig farm breeding wastewater comprises the waste water of washing excrement technology type and dry clear excrement technology type waste water, and wastewater source rushes draining in hurdle water, pig urcine excrement sewage and other breeding process in pig house.
Described anaerobic biogas generating pit (tower) is various types of anaerobic processing device producing biogas, comprises buried treating pond and ground type treating column.This processing section hydraulic detention time is 3-7 days.
Described natural pond liquid storage pool is all kinds of cement pit or pond.In this storage pond, hydraulic detention time is 2-7 days.
Described anaerobic baffle plate reaction tank, is characterized in that the direction baffling in vertical direction being made current by baffle plate, the cell that reaction tank is divided into 3-6 level not wait by traverse baffle.This processing section hydraulic detention time is 6-12 hour.
Described anaerobe film reaction pond, it is characterized in that being placed with the carrier for attached growth of microorganisms in the body of pond, carrier can be flexible carrier, as polyethylene fibre silk, fibre plate, Buddhist nun's agriculture rope, non-woven fabrics etc., also can be the hard materials such as baton round.This processing section hydraulic detention time is 12-24 hour.
Described sequence batch (biological reaction tank, is characterized in that pond body has aerating system, operational process discontinuous aeration.This processing section hydraulic detention time is 2-5 days.
Described sterilization reuse pool, is characterized in that pond in two sub-sections, and leading portion is sterilization pool, and available ozone or the dioxide peroxide of utilizing carries out disinfection, and back segment is reuse water storage pond, for storing the water outlet after sterilization.Environmental friendliness microbial preparation also adds in back segment storage pond.
Described reuse water rushes hurdle, it is characterized in that the water outlet through sterilization, enter in reuse water storage pond, through 8-24h, the residual disappearance of to be sterilized dose, in reuse water storage pond, add environmental friendliness microbial preparation, the water water pump then this being contained environmental friendliness microbial preparation is extracted into pig house to carry out rushing hurdle reuse.Due to the use of environmental friendliness microbial preparation, rush in hurdle process, these probioticss are bred in pig house environment, consume stink substance, and suppress the effect of foul smell producing strains, thus effectively eliminate pig house stink.
Described environmental friendliness microbial preparation, it is characterized in that this environmental friendliness microbial preparation is complex microorganism preparations, microbe species comprises the one or more combination of photosynthetic bacterium, milk-acid bacteria, yeast, EM bacterium, bacillus.
Preferred version is photosynthetic bacterium is Rhodopseudomonas palustris (CCAM080042), milk-acid bacteria is lactobacterium casei (CCAM080046), yeast is rhodotorula glutinis (CCAM080023), bacillus is Bacillus cereus (CCAM080015), wherein one or more combination, the dosage of each bacterium is 1 × 10
4-1 × 10
7cfu/ml.Adding the frequency is that system cloud gray model adds once first week every day, adds once weekly by above-mentioned microbial inoculum amount later.In steady running process, in reuse pool, each bacteria suspension concentration is all not less than 10
4cfu/ml.
Preferred, environmental friendliness microbial preparation is by Rhodopseudomonas palustris (CCAM080042), lactobacterium casei (CCAM080046), rhodotorula glutinis (CCAM080023), Bacillus cereus (CCAM080015) mixes, and addition is respectively 1 × 10
6cfu/ml, 1 × 10
5cfu/ml, 1 × 10
5cfu/ml, 1 × 10
6cfu/ml, adding the frequency is that system cloud gray model adds once first week every day, adds once weekly by above-mentioned microbial inoculum amount later.In steady running process, in reuse pool, each bacteria suspension concentration above-mentioned is all not less than 10
4cfu/ml.
Above-mentioned all treating ponds can be cement pits, brick mixes pond or native pond overlay film.
Compared with former Process for Treatment of Swine Wastewater technique, advantage of the present invention and beneficial effect are:
(1) the present invention rushes hurdle for pig farm after can realizing Process for Treatment of Swine Wastewater, realizes utilization of wastewater resource, saving water resource, realizes pig farm cultivation zero release simultaneously.
(2) the friendly microbial preparation of the present invention's applied environment in reuse process, can effectively eliminate pig house stink, improve pig house surrounding enviroment while rushing hurdle.
(3) the present invention is combined with biogas treatment, anaerobic baffle plate reaction, Anaerobic Contact oxidizing reaction, sequence batch (biological respinse four kinds of sewage treatment process, by the sequential combination of existing sewage unit, can effectively process various types of piggery wastewater, and its effluent index is met and is better than the water quality requirement in " livestock and poultry breeding industry pollutant emission standard " GB18596-2001.
(4) capital construction of process of the present invention drops into lower, and running cost is not high, automatic operating, convenient management, is easy to promote.For a standard ten thousand pig farms, it is about 400,000 that the capital construction of present invention process drops into, and the value of deduction biogas and reuse water, running cost is per ton lower than 0.5 yuan.
Accompanying drawing explanation
Fig. 1 is the schema of Process for Treatment of Swine Wastewater in the embodiment of the present invention 1 and circulation reuse method.
Embodiment
Below in conjunction with embodiment, the present invention is further described, but protection scope of the present invention is not limited in the scope of embodiment.The sewage treatment unit that the embodiment of the present invention uses, is well known in the art.Technical scheme of the present invention, if not otherwise specified, is the ordinary skill in the art.Embodiment of the present invention bacterial strain uses therefor is buied from China Microbiological bacterial strain (http://www.mum800.com/).
Embodiment 1:
A kind of Process for Treatment of Swine Wastewater and circulation reuse method, step is as follows:
This technique carries out field experiment operation on certain standard ten thousand pig farms, and this pig farm water displacement is 50m
3/ d.
Piggery wastewater is introduced into a 500m
3(useful volume 350m
3) process of biogas tower, hydraulic detention time 7 days, it is 200m that generation natural pond liquid enters useful volume
3natural pond liquid storage pool, hydraulic detention time 4 days, then enters anaerobic baffle plate reaction tank (the useful volume 20m being divided into 3 grades of cells through pipeline
3), hydraulic detention time is 9.6 hours; (or anaerobe membrane reactor is claimed, useful volume 40m from flowing into the anaerobe film reaction pond that Ni Nongsi biofilm is housed
3), this processing unit hydraulic detention time is 19.2 hours, by sump pump be promoted to sequence batch (biological reaction tank (or claim sbr reactor pond, useful volume 150m
3), this processing unit hydraulic detention time is 3 days, and sequence batch (biological reaction tank working procedure is as follows: 8 hours each cycles, 3 cycles of every day, each cycle water inlet 16.7m
3, intake 30 minutes, aeration 4.5 hours, leaves standstill 2.5 hours, draining 30 minutes.The water outlet of sequence batch (biological reaction tank enters sterilization reuse pool through water decanter.Sterilization reuse pool overall for useful volume be 120m
3rectangle pond, be divided into sterilization pool (40m by body of wall
3) and reuse water storage pond (80m
3) two parts.Water decanter draining to be introduced in sterilization pool after 3mg/l disinfection by chlorine dioxide, overflow in reuse pool, to enter in reuse pool after 8 hours to fresh sterilized water overflow, Rhodopseudomonas palustris (CCAM080042) is added in reuse pool, lactobacterium casei (CCAM080046), rhodotorula glutinis (CCAM080023) and Bacillus cereus (CCAM080015), addition is respectively 1 × 10
6cfu/ml, 1 × 10
5cfu/ml, 1 × 10
5cfu/ml, 1 × 10
6cfu/ml.Adding the frequency is that system cloud gray model adds once first week every day, and Monday adds once by above-mentioned microbial inoculum amount weekly later, and in steady running process, in reuse pool, each bacteria suspension concentration above-mentioned is all not less than 10
4cfu/ml.Finally, utilize water pump that this is promoted to pig house containing bacterium reuse water to carry out rushing hurdle reuse.
Treatment tank in the present embodiment, utilizes the difference of elevation of physical features to design, and uses the mode of gravity flow to drive water body flow between different treatment pond.
The inventive method is run after 2 months and is monitored its water inlet and effluent quality (described effluent quality is the water of discharging through water decanter), influent COD 3000-5000mg/l, BOD
51900-2600mg/l, TSS8000-15000mg/l, ammonia nitrogen 600-700mg/l, TP35-65mg/l, after process, effluent quality is as follows: COD150-200mg/l, BOD
580-150mg/l, TSS30-70mg/l, ammonia nitrogen 2-10mg/l, TP4-7mg/l.Effluent index is better than " livestock and poultry breeding industry pollutant emission standard " (GB18596-2001).
Embodiment 2:
Reuse water of the present invention rushes the elimination to pig house stink behind hurdle:
The water that embodiment 1 is discharged through water decanter, after sterilization pool sterilization, overflow enters reuse pool, leave standstill after 8 hours, by Rhodopseudomonas palustris (CCAM080042), lactobacterium casei (CCAM080046), rhodotorula glutinis (CCAM080023) and Bacillus cereus (CCAM080015) drop in reuse pool, and addition is respectively 1 × 10
6cfu/ml, 1 × 10
5cfu/ml, 1 × 10
5cfu/ml, 1 × 10
6cfu/ml, mixing, extracts out immediately and carries out rushing hurdle.
Utilize reuse water to rush hurdle to certain ten thousand pig farm pig house in the present invention, and rush hurdle with clean pond water and contrast, every Tianchong hurdle reuse water yield is 48-52 ton.Mensuration reuse water and clear water rush the concentration of stink substance ammonia nitrogen and hydrogen sulfide in pig house air before and after hurdle respectively, measure pig house odor concentration at once after rushing hurdle at every turn.The results are shown in shown in following table 1:
Table 1 reuse water and natural pond water rinse stink substance concentrations versus before and after pig house
Claims (4)
1. Process for Treatment of Swine Wastewater and a circulation reuse method, comprises the following steps:
Pig farm breeding wastewater is first through anaerobic biogas generating pit or the process of biogas tower, the natural pond liquid produced enters Ye Chu pond, natural pond, then anaerobic baffle plate reaction tank is flowed into successively by pipeline, anaerobe film reaction pond, processed to sequence batch (biological reaction tank by water pump lifting afterwards, water outlet enters sterilization reuse pool through water decanter, reuse water is promoted to pig house with pump after adding environmental friendliness microbial preparation and rushes hurdle, rushing hurdle water enters in methane-generating pit or biogas tower with other sewage once more, realize circulation, the mud that sewage treatment unit at different levels produces is used as fertilizer after sludge drying bed mummification,
Described environmental friendliness microbial preparation is the one or more combination of photosynthetic bacterium, milk-acid bacteria, yeast, EM bacterium, bacillus.
2. method according to claim 1, is characterized in that:
Described anaerobic biogas generating pit or biogas tower are various types of anaerobic processing devices producing biogas, comprise buried treating pond and ground type treating column, and this processing section hydraulic detention time is 3-7 days;
Ye Chu pond, described natural pond is all kinds of cement pit or pond, and in this storage pond, hydraulic detention time is 2-7 days;
Described anaerobic baffle plate reaction tank, the cell that reaction tank is divided into 3-6 level not wait by traverse baffle, this processing section hydraulic detention time is 6-12 hour;
Described anaerobe film reaction pond, it is characterized in that being placed with the carrier for attached growth of microorganisms in the body of pond, carrier is polyethylene fibre silk, fibre plate, nylon rope, non-woven fabrics or baton round; This processing section hydraulic detention time is 12-24 hour;
Described sequence batch (biological reaction tank, is characterized in that pond body has aerating system, operational process discontinuous aeration, and this processing section hydraulic detention time is 2-5 days;
Described sterilization reuse pool, it is characterized in that pond is in two sub-sections, leading portion is sterilization pool, utilizes ozone or dioxide peroxide to carry out disinfection, and back segment is reuse water storage pond, for storing the water outlet after sterilization; Environmental friendliness microbial preparation adds in back segment storage pond.
3. method according to claim 1, described environmental friendliness microbial preparation is: Rhodopseudomonas palustris CCAM080042, lactobacterium casei CCAM080046, rhodotorula glutinis CCAM080023, Bacillus cereus CCAM080015, wherein one or more combination, the dosage of often kind of bacterium is 1 × 10
4-1 × 10
7cfu/ml, adding the frequency is that system cloud gray model adds once first week every day, adds once weekly by above-mentioned microbial inoculum amount later.
4. method according to claim 1, described environmental friendliness microbial preparation is: Rhodopseudomonas palustris CCAM080042, lactobacterium casei CCAM080046, rhodotorula glutinis CCAM080023 and Bacillus cereus CCAM080015, addition is respectively 1 × 10
6cfu/ml, 1 × 10
5cfu/ml, 1 × 10
5cfu/ml, 1 × 10
6cfu/ml, adding the frequency is that system cloud gray model adds once first week every day, and add once by above-mentioned microbial inoculum amount weekly, in steady running process, in reuse pool, each bacteria suspension concentration above-mentioned is all not less than 10 later
4cfu/ml.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104817227A (en) * | 2015-04-15 | 2015-08-05 | 柳州市大金农业科技有限公司 | Farm ecological treatment method |
| CN105176868B (en) * | 2015-09-08 | 2019-04-19 | 福建省微生物研究所 | A kind of composite bacteria agent and its preparation method and application of high-efficient purification wastewater from pig farm anaerobic effluent |
| CN106517663A (en) * | 2016-12-06 | 2017-03-22 | 衡阳茂晨农业开发有限公司 | Treatment method for breeding wastewater of rana grylio |
| CN110408572A (en) * | 2019-08-19 | 2019-11-05 | 南宁职业技术学院 | The preparation method and applications of microorganism fungus kind |
| CN110746041A (en) * | 2019-10-23 | 2020-02-04 | 温州科技职业学院 | Pigsty wastewater sterilization and recycling treatment method and equipment thereof |
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