CN104150684A - Aquaculture wastewater treatment process - Google Patents
Aquaculture wastewater treatment process Download PDFInfo
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- CN104150684A CN104150684A CN201410327654.5A CN201410327654A CN104150684A CN 104150684 A CN104150684 A CN 104150684A CN 201410327654 A CN201410327654 A CN 201410327654A CN 104150684 A CN104150684 A CN 104150684A
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Abstract
The invention belongs to the field of environmental protection technologies, and discloses an aquaculture wastewater treatment process. The aquaculture wastewater treatment process comprises the steps of bacterium agent preparation, impurity removal and precipitation, wastewater purification and microbial fertilizer preparation, and the like. According to the process technology disclosed by the invention, a compound bacterium agent is adopted, so that the process is environment-friendly and pollution-free; and a microbial fertilizer is used and prepared, so that no additional pollutant is produced in the whole process, thereby achieving the effect of changing waste material into things of value.
Description
Technical field
The invention belongs to environmental technology field, be specifically related to a kind of technique of processing aquaculture wastewater.
Background technology
Along with the continuous expansion of intensive culture scale, by throwing, being raised the inorganicss such as the metabolite of generation, residual bait organism and ammonia nitrogen has become new source of pollution, and while water surrounding day by day aging, that pollute has also restricted aquaculture and further developed.Breeding wastewater has typically " three height " feature, and CODcr is up to 3000~12000mg/l, and ammonia nitrogen is up to 800~2200mg/l, the P decades of times that exceeds standard.Being limited to aquaculture is small profits industries, and current treatment process only can be for the significantly reduction of CODcr, and ammonia nitrogen qualified discharge is remained in very large Technological Economy difficulty.Scale animal and poultry cultivation wastewater treatment has caused the great attention of the owner of plant and relevant department at present, take a series of prophylactico-therapeutic measuress and select economy, efficiently treatment technology is very urgent.Along with state sewage emission standard upgrades day by day, standardizing high-concentration culture waste water emission problem is more outstanding.
The pig farm sewage treatment process adopting at present mainly contains: built-up type stabilization pond technique, UASB+SBR technique, ZWD Novel biomass pool+biological cycle treatment process, strengthening pre-treatment+efficient deflector anaerobic reactor+oxidation pond and stage acidizing-artificial wetland treatment process etc.Although though the processing of plant's waste water is had to much research both at home and abroad, also there are some above-mentioned treatment processs, but, from existing report Information integration, analyze, which kind of method treatment effect is all undesirable at present, or effluent quality does not reach emission request, or cost is too high and cannot apply in China.Large-scale pig farm waste water is all very high waste water of a kind of organic matter and ammonia nitrogen concentration; independent anaerobism or aerobic process are all unaccommodated to treatment scale piggery wastewater; the water outlet of anaerobic technique does not reach emission request separately; independent aerobic process can not bear the waste water of high density like this, high loading; must occur the series of problems such as sludge bulking, and working cost is higher.
Summary of the invention
In order to overcome the deficiencies in the prior art, the invention provides a kind of technique of processing aquaculture wastewater.Technology of the present invention has adopted composite fungus agent, environment friendly and pollution-free, and utilizes discarded bacterium to prepare bacterial manure, and whole process produces without extra pollutent, has realized and having turned waste into wealth.
The present invention adopts following technical scheme to realize:
A technique of processing aquaculture wastewater, it comprises the steps:
Microbial inoculum preparation: mixed bacteria liquid and sawdust are mixed according to the weight ratio of 1: 1, stir, then put cryodrying at 4 ℃, dry rear water content is controlled at 8%, obtains; Described mixed bacteria liquid is mixed by the raw material bacterium of following parts by volume: 10 parts of bacillus pumilus, 8 parts of thiobacillus denitrificans, 6 parts of Bacillus foecalis alkaligeness, 5 parts of pseudomonas aeruginosas, 2 parts of bacillus cereuses, 1 part of 2 parts of sphingosine sporangiums and rhodococcus; The concentration of above-mentioned raw materials bacterium is all controlled at 1 * 10
8individual/ml.
Impurity-removing precipitating: aquaculture wastewater, successively by grid and mud, is removed the solid matters such as pig manure, collects solid matter, can be used as organic fertilizer; Then sewage enters settling tank, and standing 6 hours, wherein, the bottom filling of settling tank was the river sand of 50cm thickness, and the particle diameter of river sand is 1mm, can, to some flocculated impurities, such as colloid etc., tentatively adsorb and precipitate;
Sewage purification: be drained into treating pond through settling tank oettIed sewage, then regulating pH is 7-8, by every cubic metre of liquid, add 10 grams of microbial inoculums at every turn, add every day 1 time, add continuously after three days, standing five days again, liquid is filtered by plate filter, finally discharge plate filter filtered and recycled microorganism and tunning thereof, obtain mixture 1, for the preparation of bacterial manure;
Bacterial manure preparation: maize straw is dried, be then ground into corn stalk powder with pulverizer, add in fermentor tank, then add humic acids, the peat composed of rotten mosses, zeolite powder and water, the speed of 1000 revs/min stirred after 15 minutes, standing 7 days, made organic matter; Organic matter was mixed to cryodrying, 10 ℃ of granulations and get final product according to 10: 1 with mixture 1; Wherein, the weight ratio of corn stalk powder, humic acids, the peat composed of rotten mosses, zeolite powder and water is 5: 2: 2: 1: 10; More than the particle diameter of corn stalk powder, humic acids, the peat composed of rotten mosses and zeolite powder is 200 orders.
Bacterial classification of the present invention belongs to conventional bacterial strain, all can buy and obtain from commercial sources such as CGMCC, CCTCC and US mode culture collection warehousings (ATCC).The enlarged culturing of each bacterial classification of the present invention is the cellar culture mode of this area, is not innovative point of the present invention, does not describe in detail herein.
The beneficial effect that the present invention obtains mainly comprises:
When the present invention disposes of sewage, prepared bacterial manure, avoided a large amount of bacterium and tunning to be discharged in water body and caused secondary pollution, killed two birds with one stone, turned waste into wealth, greatly provided cost savings; The present invention has avoided a large amount of fixation means that adopt, for medium and small breeding enterprise has reduced investment and working cost; The present invention processes in the method for aquaculture wastewater and has mainly adopted reasonable compatibility between each bacterial classification in microbial inoculum microbial inoculum, and symbiosis is coordinated, antagonism not mutually, and its preparation method is easy, easy to implement the method, and it is easy and simple to handle, is beneficial to suitability for industrialized production; The present invention adopts the mixed raw materials such as agricultural wastes and humic acids standby organic, turns waste into wealth, and greatly provides cost savings; Bacterial manure of the present invention has quick-acting, long-acting, disease-resistant feature, and there is good stability, that Rational Application can reach is disease-resistant, increase production, improve quality of agricultural product, reduce fertilizer amount and improve the effect of soil, and pollution-free, free from extraneous odour, consumption are few, are a kind of good raw bacterial manure.
Embodiment
By the mode that adopts specific embodiment, the present invention is further elaborated below, but it should not be construed the restriction to core initiative spirit of the present invention.
Embodiment 1
A technique of processing aquaculture wastewater, it comprises the steps:
Microbial inoculum preparation: mixed bacteria liquid and sawdust are mixed according to the weight ratio of 1: 1, stir, then put cryodrying at 4 ℃, dry rear water content is controlled at 8%, obtains; Described mixed bacteria liquid is mixed by the raw material bacterium of following parts by volume: 10 parts of bacillus pumilus, 8 parts of thiobacillus denitrificans, 6 parts of Bacillus foecalis alkaligeness, 5 parts of pseudomonas aeruginosas, 2 parts of bacillus cereuses, 1 part of 2 parts of sphingosine sporangiums and rhodococcus; The concentration of above-mentioned raw materials bacterium is all controlled at 1 * 10
8individual/ml.
Impurity-removing precipitating: aquaculture wastewater, successively by grid and mud, is removed the solid matters such as pig manure, collects solid matter, can be used as organic fertilizer; Then sewage enters settling tank, and standing 6 hours, wherein, the bottom filling of settling tank was the river sand of 50cm thickness, and the particle diameter of river sand is 1mm, can, to some flocculated impurities, such as colloid etc., tentatively adsorb and precipitate;
Sewage purification: be drained into treating pond through settling tank oettIed sewage, then regulating pH is 7-8, by every cubic metre of liquid, add 10 grams of microbial inoculums at every turn, add every day 1 time, add continuously after three days, standing five days again, liquid is filtered by plate filter, finally discharge plate filter filtered and recycled microorganism and tunning thereof, obtain mixture 1, for the preparation of bacterial manure;
Bacterial manure preparation: maize straw is dried, be then ground into corn stalk powder with pulverizer, add in fermentor tank, then add humic acids, the peat composed of rotten mosses, zeolite powder and water, the speed of 1000 revs/min stirred after 15 minutes, standing 7 days, made organic matter; Organic matter was mixed to cryodrying, 10 ℃ of granulations and get final product according to 10: 1 with mixture 1; Wherein, the weight ratio of corn stalk powder, humic acids, the peat composed of rotten mosses, zeolite powder and water is 5: 2: 2: 1: 10; More than the particle diameter of corn stalk powder, humic acids, the peat composed of rotten mosses and zeolite powder is 200 orders.
Embodiment 2
Our company's pig aquaculture wastewater of take is example, detects the wastewater treatment efficiency of embodiment 1, and respectively, as long as index all reaches desirable emission standard, the detection index of aquaculture wastewater is in Table 1:
Parameter index before and after table 1 sewage disposal
Project name | Water quality before processing | Water quality after processing | Desirable index |
NH3-N | 980mg/L | 0.7mg/L | ≤1mg/L |
NO2-N | 105mg/L | 0.3mg/L | ≤1mg/L |
P | 47mg/L | 0.06mg/L | ≤0.1mg/L |
CODcr | 7600mg/L | 43mg/L | ≤50mg/L |
Embodiment 3
The impact of the bacterial manure of the embodiment of the present invention 1 preparation on vintage and quality.For examination grape, be 3 years huge peaks of life, with common dregs of beans fertilizer in contrast, the embodiment of the present invention 1 is test group; Amount of application is 2 kilograms/strain of the every strain of the present invention, 2 kilograms/strain of common fertilizer, Routine Management.Result, as shown in table 2 and 3, is used the present invention can improve sugar-acid ratio and the coloring degree of kyoto grape, and taste of fruit is better; Use the present invention also significantly to increase grape single fruit weight.
The impact of table 2 the present invention on kyoto grape output
The impact of table 3 the present invention on kyoto grape quality
Although, above with general explanation and embodiment, this case having been done to detailed explanation, on basis of the present invention, can make some modifications or improvements it, this will be apparent to those skilled in the art.Therefore, the modification done without departing from theon the basis of the spirit of the present invention or improvement, all belong to the scope of protection of present invention.
Claims (3)
1. a technique of processing aquaculture wastewater, is characterized in that, described technique comprises the steps:
Step 1) microbial inoculum preparation: mixed bacteria liquid and sawdust are mixed according to the weight ratio of 1: 1, stir, then put cryodrying at 4 ℃, dry rear water content is controlled at 8%, obtains; Described mixed bacteria liquid is mixed by the raw material bacterium of following parts by volume: 10 parts of bacillus pumilus, 8 parts of thiobacillus denitrificans, 6 parts of Bacillus foecalis alkaligeness, 5 parts of pseudomonas aeruginosas, 2 parts of bacillus cereuses, 1 part of 2 parts of sphingosine sporangiums and rhodococcus;
Step 2) impurity-removing precipitating: aquaculture wastewater, successively by grid and mud, is removed solid matter; Then sewage enters settling tank, and standing 6 hours, the bottom filling of described settling tank was the river sand of 50cm thickness, and the particle diameter of river sand is 1mm;
Step 3) sewage purification: be drained into treating pond through settling tank oettIed sewage, then regulating pH is 7-8, adds 10 grams of microbial inoculums by every cubic metre of liquid at every turn, add every day 1 time, add continuously after three days, more standing five days, liquid is filtered by plate filter, finally discharge; Meanwhile, collect microorganism and the tunning thereof of the filtration of plate filter, obtain mixture 1, for the preparation of bacterial manure;
Step 4) bacterial manure preparation: maize straw is dried, be then ground into corn stalk powder with pulverizer, add in fermentor tank, then add humic acids, the peat composed of rotten mosses, zeolite powder and water, the speed of 1000 revs/min stirred after 15 minutes, standing seven days, made organic matter; By organic and step 3) mixture 1 prepared mixed according to 10: 1, cryodrying, granulation and get final product.
2. technique as claimed in claim 1, is characterized in that, described step 4) in, the weight ratio of corn stalk powder, humic acids, the peat composed of rotten mosses, zeolite powder and water is 5: 2: 2: 1: 10; More than the particle diameter of corn stalk powder, humic acids, the peat composed of rotten mosses and zeolite powder is 200 orders.
3. technique as claimed in claim 1, is characterized in that, described step 1) in, the concentration of each raw material bacterium is all controlled at 1 * 10
8individual/ml.
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CN104528949A (en) * | 2014-12-28 | 2015-04-22 | 国家电网公司 | Process for treating desulfurization wastewater of power plant |
CN104528948A (en) * | 2014-12-28 | 2015-04-22 | 国家电网公司 | Biological agent for treating desulfurization sewage of thermal power plant |
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CN104528949A (en) * | 2014-12-28 | 2015-04-22 | 国家电网公司 | Process for treating desulfurization wastewater of power plant |
CN104528948A (en) * | 2014-12-28 | 2015-04-22 | 国家电网公司 | Biological agent for treating desulfurization sewage of thermal power plant |
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CN106915873A (en) * | 2017-04-11 | 2017-07-04 | 内蒙古阜丰生物科技有限公司 | Administer the environment-protective process of waste gourmet powder fermenting liquor |
CN106915873B (en) * | 2017-04-11 | 2020-06-26 | 内蒙古阜丰生物科技有限公司 | Environment protection process for treating waste liquid of monosodium glutamate fermentation |
CN107010731A (en) * | 2017-04-27 | 2017-08-04 | 卢松 | The handling process of high concentration starch water |
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CN107176678A (en) * | 2017-05-04 | 2017-09-19 | 浙江省农业科学院 | A kind of method by functional microorganism intensive treatment livestock breeding wastewater |
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CN108408922A (en) * | 2018-04-12 | 2018-08-17 | 孙雪华 | A method of repairing organochlorine pesticide pollution water body using composite bacteria agent |
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Application publication date: 20141119 |