CN105174613A - Treatment method for rural aquaculture waste water - Google Patents
Treatment method for rural aquaculture waste water Download PDFInfo
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- CN105174613A CN105174613A CN201510539541.6A CN201510539541A CN105174613A CN 105174613 A CN105174613 A CN 105174613A CN 201510539541 A CN201510539541 A CN 201510539541A CN 105174613 A CN105174613 A CN 105174613A
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Abstract
The present invention relates to the field of environmental protection, in particular a treatment method for rural aquaculture waste water. As the conventional treatment method for aquaculture waste water is extensive in mode to cause a lot of waste water, the waste water is not thoroughly treated, and the method does not meet the needs of modern breeding industry, the present invention provides a method to sterilize the aquaculture waste water by using a weed mixed liquid and to treat the aquaculture waste water by using a microbial preparation. Examples verify that the treatment process of the present invention has no need for secondarily adding water, water resources cannot be wasted, the removal rate of COD in aquaculture waste water can reach over 96%, the removal rate of nitrogen and phosphorus can reach over 94%, and the removal rate of BOD can reach over 96%, and no odors are available, so that the method is simple and effective and strong in practicality.
Description
Technical field
The present invention relates to field of Environment Protection, specifically a kind of method processing Rural Water aquaculture waste.
Background technology
The current fishery products ultimate production of China has accounted for 1/3 of World Water product population, is genuine fishery products production superpower.But Export of Chinese Aquatic Products volume only accounts for 6.3% of World Water products export total volume of trade, extremely unbecoming with the status of fishery products superpower.In the world, the exit passageway of China's fishery products, is subject to the obstruct layer by layer of green barrier.So healthy ecology cultivation is the key issue that can China's water industry develop.
Culture fishery is largest in all animal food supply chains, but along with the develop rapidly of China's culture fishery, while bringing great economic benefit, aquaculture water has also suffered severe contamination, nitrogen, the pollutents such as phosphorus are present in the waste water of aquaculture discharge in a large number, occur eutrophication.Its development if leave, the restriction that the development of culture fishery can be subject to a great extent because of quality problem.
At present, aquaculture is the important component part of agriculture production.Modern culture fishery is more and more tending towards intensive, the use of a large amount of feeds, fertilizer and pharmaceutical chemicals, huge pressure is brought to aquaculture water, exceed the metabolic capacity of the natural purification ecosystem that general cultivation relies on, cause large amount of organic not decompose completely, cause the pollution of water body.Traditional water body processing mode is that inject fresh water body, this processing mode is extensive style, does not meet the requirement of modern farming, and waste water resource, processes not thorough by after breeding wastewater discharge completely.
Summary of the invention
The technical problem that the present invention mainly solves: for current conventional process aquiculture waste water, mode is extensive, cause a large amount of water resource waste, process not thorough, and do not meet the needs of modern farming, the invention provides one and carry out sterilization by weeds mixed solution, the method for microbial preparation process aquiculture waste water.
In order to solve the problem, the technical solution adopted in the present invention is:
(1) Rural Water aquaculture waste is removed impurity after filtration, the net footpath of the filter screen used is 0.05 ~ 0.1mm, Rural Water aquaculture waste after filtration, according to being 1:5 with its volume ratio, ratio adds weeds mixed solution, temperature is kept to be 30 ~ 40 DEG C, stir 1 ~ 2h, rotating speed is set to 1200 ~ 1700r/min, then liquid chlorine is added wherein, its add-on is 0.1 ~ 1.3% of Rural Water aquaculture waste quality, stir 20 ~ 30min, leave standstill 15 ~ 20min again, filter, the preparation method of described weeds mixed solution is by Herba Eleusines Indicae, Herba Houttuyniae and Huang Ling in mass ratio 1:1:1 mix, then in mixture, add the water of 40 ~ 50% of its quality, put into juice extractor, carry out squeezing the juice,
(2) the Rural Water aquaculture waste of above-mentioned process is flowed through immersion biofilter with 2m/s, in strainer, pass into ozone simultaneously, the flow of ozone is 7 ~ 10mg/min, then Rural Water aquaculture waste after filtration is passed in treating pond, add microbial preparation wherein, make the concentration of microbial preparation in Rural Water aquaculture waste be 400 ~ 720mg/L, slowly stir 40 ~ 50min, rotating speed is 600 ~ 700r/min, and temperature remains 40 ~ 45 DEG C;
(3) filter the Rural Water aquaculture waste in step (2), introduce in aeration tank and carry out lasting Air Exposure, gas-water ratio is 16:1, aeration 30 ~ 50min, and aeration terminates rear filtered and recycled microbial preparation;
(4) above-mentioned filtered liquid is introduced precipitation biological treatment reactor, in precipitation biological treatment reactor, carry out the preliminary solid-liquid separation reaction of mixed solution, the settling of generation all concentrates discharge except returned sluge, completes final solid-liquid separation;
(5) more isolated Rural Water aquaculture waste is filtered through ceramic membrane.
The preparation method of described microbial preparation is:
(1) spreading one deck lime powder bottom fermentation vat, thickness is 1 ~ 2cm, the wormwood that a layer thickness is the drying of 2 ~ 3cm is spread on lime powder top, then the mud got bottom the aquaculture pond of rural area is placed on above wormwood, then Rural Water aquaculture waste is added wherein, flood mud 5 ~ 6cm, keep temperature to be 35 ~ 40 DEG C, sealing and fermenting 12 ~ 14h;
(2) after sealing and fermenting terminates, stir 20 ~ 30min, rotating speed is 800 ~ 900r/min, then leaves standstill 5 ~ 10min, uses reverse osmosis membrane to filter;
(3) solution removing water in step (2) is put into container, add Nano microsphere wherein, often liter of solution adds 200 ~ 350g Nano microsphere, keeps temperature to be 30 ~ 40 DEG C, stirs 30 ~ 50min, then leaves standstill and filters.
The preparation method of described Nano microsphere is:
(1) nano silicon is put into container, add deionized water and polyoxyethylene glycol wherein, its add-on is that every gram of silicon-dioxide adds 3mL water respectively, 1mL polyoxyethylene glycol, stir, then shake in ultrasonic apparatus, add sodium hydroxide wherein after concussion 3 ~ 5min, add-on is 10 ~ 12% of nano titanium oxide quality, stir 30 ~ 50min, leave standstill, be cooled to 25 ~ 30 DEG C, filter;
(2) particulate matter of above-mentioned gained is put into container, add the clay of particulate matter quality 30 ~ 35% wherein, add water wherein and carry out granulation, obtain ball shaped nano carrier;
(3) dried by the ball shaped nano carrier of above-mentioned gained, put into converter calcining 1 ~ 3h, temperature controls at 600 ~ 900 DEG C, and after sintering, cooling is dried.
Principle of the present invention: first by weeds mixed solution, aquiculture waste water is carried out disinfection sterilization, by the ozone of trace, further sterilization is carried out to aquiculture waste water again, guarantee that microorganisms in water content is up to standard, then by microbial preparation, absorption degradation process is carried out to the pollutent of aquiculture waste water, more further aquiculture waste water is processed by Air Exposure.
Beneficial effect of the present invention:
(1) in treating processes, water is added without the need to secondary, without water resource waste;
(2) in aquiculture waste water the clearance of COD reach 96%, removal efficiency of nitrogen and phosphorus reach 94% and BOD clearance reach 96%, without any peculiar smell;
(3) present method is simply effective, practical.
Specific embodiments
Rural Water aquaculture waste is removed impurity after filtration, the net footpath of the filter screen used is 0.05 ~ 0.1mm, Rural Water aquaculture waste after filtration, according to being 1:5 with its volume ratio, ratio adds weeds mixed solution, temperature is kept to be 30 ~ 40 DEG C, stir 1 ~ 2h, rotating speed is set to 1200 ~ 1700r/min, then liquid chlorine is added wherein, its add-on is 0.1 ~ 1.3% of Rural Water aquaculture waste quality, stir 20 ~ 30min, leave standstill 15 ~ 20min again, filter, the preparation method of described weeds mixed solution is by Herba Eleusines Indicae, Herba Houttuyniae and Huang Ling in mass ratio 1:1:1 mix, then in mixture, add the water of 40 ~ 50% of its quality, put into juice extractor, carry out squeezing the juice, the Rural Water aquaculture waste of above-mentioned process is flowed through immersion biofilter with 2m/s, in strainer, pass into ozone simultaneously, the flow of ozone is 7 ~ 10mg/min, then Rural Water aquaculture waste after filtration is passed in treating pond, add microbial preparation wherein, make the concentration of microbial preparation in Rural Water aquaculture waste be 400 ~ 720mg/L, slowly stir 40 ~ 50min, rotating speed is 600 ~ 700r/min, and temperature remains 40 ~ 45 DEG C, filter the Rural Water aquaculture waste in above-mentioned steps, introduce in aeration tank and carry out lasting Air Exposure, gas-water ratio is 16:1, aeration 30 ~ 50min, and aeration terminates rear filtered and recycled microbial preparation, above-mentioned filtered liquid is introduced precipitation biological treatment reactor, in precipitation biological treatment reactor, carry out the preliminary solid-liquid separation reaction of mixed solution, the settling of generation all concentrates discharge except returned sluge, completes final solid-liquid separation, again isolated Rural Water aquaculture waste is filtered through ceramic membrane.
The preparation method of described microbial preparation is:
(1) spreading one deck lime powder bottom fermentation vat, thickness is 1 ~ 2cm, the wormwood that a layer thickness is the drying of 2 ~ 3cm is spread on lime powder top, then the mud got bottom the aquaculture pond of rural area is placed on above wormwood, then Rural Water aquaculture waste is added wherein, flood mud 5 ~ 6cm, keep temperature to be 35 ~ 40 DEG C, sealing and fermenting 12 ~ 14h;
(2) after sealing and fermenting terminates, stir 20 ~ 30min, rotating speed is 800 ~ 900r/min, then leaves standstill 5 ~ 10min, uses reverse osmosis membrane to filter;
(3) solution removing water in step (2) is put into container, add Nano microsphere wherein, often liter of solution adds 200 ~ 350g Nano microsphere, keeps temperature to be 30 ~ 40 DEG C, stirs 30 ~ 50min, then leaves standstill and filters.
The preparation method of described Nano microsphere is:
(1) nano silicon is put into container, add deionized water and polyoxyethylene glycol wherein, its add-on is that every gram of silicon-dioxide adds 3mL water, add 1mL polyoxyethylene glycol, stir, then use in ultrasonic apparatus, shake, then add sodium hydroxide wherein, add-on is 10 ~ 12% of nano titanium oxide quality
Stir 30 ~ 50min, leave standstill and be cooled to 25 ~ 30 DEG C, filter;
(4) particulate matter of above-mentioned gained is put into container, add the clay of 30 ~ 35% of particulate matter quality wherein, add water wherein and carry out granulation, obtain ball shaped nano carrier;
(5) dried by the ball shaped nano carrier of above-mentioned gained, put into converter calcining 1 ~ 3h, temperature controls at 600 ~ 900 DEG C, and after sintering, cooling is dried.
In described step (1) weeds mixed solution preparation method for by Herba Eleusines Indicae, Herba Houttuyniae and Huang Ling in mass ratio 1:1:1 mix, in mixture, then add the water of 40 ~ 50% of its quality, put into juice extractor, carry out squeezing the juice.
Be 26mg/L by total nitrogen, titanium pigment is 6mg/L, BOD is 52mg/L, COD is that the 10L Rural Water aquaculture waste of 96mg/L removes water-fast impurity through filter tank, and the net footpath of the filter screen used is 0.05mm, the Rural Water aquaculture waste after filtration, add 2L weeds mixed solution, keep temperature to be 30 DEG C, stir 1h, rotating speed is set to 1200r/min, then 0.6kg liquid chlorine is added wherein, stir 20min, leave standstill 15min again, filter; The Rural Water aquaculture waste of above-mentioned process is flowed through immersion biofilter with 2m/s, in strainer, pass into ozone simultaneously, the flow of ozone is 5mg/min, then Rural Water aquaculture waste after filtration is passed in treating pond, add 4g microbial preparation wherein, slow stirring 40min, rotating speed is 600r/min, and temperature remains 40 DEG C; Filter the Rural Water aquaculture waste in above-mentioned steps, introduce in aeration tank and carry out lasting Air Exposure, gas-water ratio is 16:1, aeration 30min, filters; Filtered liquid is entered precipitation biological treatment reactor, in precipitation biological treatment reactor, carry out the preliminary solid-liquid separation reaction of mixed solution, complete final solid-liquid separation; Again isolated liquid is filtered through ceramic membrane.
This case method is unique novel, and final to detect total nitrogen in processed Agricultural Water aquaculture waste be 1.2mg/L, and titanium pigment is 0.1mg/L, BOD be 1.56mg/L, COD is 3.6mg/L, without any peculiar smell.
Be 36mg/L by total nitrogen, titanium pigment is 11.2mg/L, BOD is 80mg/L, COD is that the 20L Rural Water aquaculture waste of 102.4mg/L removes water-fast impurity through filter tank, and the net footpath of the filter screen used is 0.1mm, the Rural Water aquaculture waste after filtration, add 4L weeds mixed solution, keep temperature to be 40 DEG C, stir 2h, rotating speed is set to 1700r/min, then 1.3kg liquid chlorine is added wherein, stir 30min, then leave standstill 20min, filter; The Rural Water aquaculture waste of above-mentioned process is flowed through immersion biofilter with 2m/s, in strainer, pass into ozone simultaneously, the flow of ozone is 7mg/min, then Rural Water aquaculture waste after filtration is passed in treating pond, add 14.4g microbial preparation wherein, slow stirring 50min, rotating speed is 6700r/min, and temperature remains 45 DEG C; Filter the Rural Water aquaculture waste in above-mentioned steps, introduce in aeration tank and carry out lasting Air Exposure, gas-water ratio is 16:1, aeration 50min, filters; Filtered liquid is entered precipitation biological treatment reactor, in precipitation biological treatment reactor, carry out the preliminary solid-liquid separation reaction of mixed solution, the settling of generation all concentrates discharge except returned sluge, completes final solid-liquid separation; Again isolated liquid is filtered through ceramic membrane.
This case method is unique novel, and final to detect total nitrogen in processed Agricultural Water aquaculture waste be 1.34mg/L, and titanium pigment is 0.18mg/L, BOD be 2.43mg/L, COD is 2.96mg/L, without any peculiar smell.
Be 29mg/L by total nitrogen, titanium pigment is 12.4mg/L, BOD is 86.4mg/L, COD is that the 40L Rural Water aquaculture waste of 101mg/L removes water-fast impurity through filter tank, and the net footpath of the filter screen used is 0.08mm, the Rural Water aquaculture waste after filtration, add 5L weeds mixed solution, keep temperature to be 35 DEG C, stir 1.5h, rotating speed is set to 1500r/min, then 1.6kg wilkinite is added wherein, stir 25min, then leave standstill 18min, filter; The Rural Water aquaculture waste of above-mentioned process is flowed through immersion biofilter with 2m/s, in strainer, pass into ozone simultaneously, the flow of ozone is 6mg/min, then Rural Water aquaculture waste after filtration is passed in treating pond, add microbial preparation wherein, make the concentration of microbial preparation in Rural Water aquaculture waste be 580mg/L, slowly stir 45min, rotating speed is 650r/min, and temperature remains 42 DEG C; Filter the Rural Water aquaculture waste in above-mentioned steps, introduce in aeration tank and carry out lasting Air Exposure, gas-water ratio is 4:1, aeration 40min, filters; Filtered liquid is entered precipitation biological treatment reactor, in precipitation biological treatment reactor, carry out the preliminary solid-liquid separation reaction of mixed solution, the settling of generation all concentrates discharge except returned sluge, completes final solid-liquid separation; Again isolated liquid is filtered through ceramic membrane.
This case method is unique novel, and final to detect total nitrogen in processed Agricultural Water aquaculture waste be 1.16mg/L, and titanium pigment is 0.15mg/L, BOD be 1.89mg/L, COD is 3.21mg/L, without any peculiar smell.
Claims (3)
1. process a method for Rural Water aquaculture waste, it is characterized in that concrete steps are:
(1) Rural Water aquaculture waste is removed impurity after filtration, the net footpath of the filter screen used is 0.05 ~ 0.1mm, Rural Water aquaculture waste after filtration, according to being 1:5 with its volume ratio, ratio adds weeds mixed solution, temperature is kept to be 30 ~ 40 DEG C, stir 1 ~ 2h, rotating speed is set to 1200 ~ 1700r/min, then liquid chlorine is added wherein, its add-on is 0.1 ~ 1.3% of Rural Water aquaculture waste quality, stir 20 ~ 30min, leave standstill 15 ~ 20min again, filter, the preparation method of described weeds mixed solution is by Herba Eleusines Indicae, Herba Houttuyniae and Huang Ling in mass ratio 1:1:1 mix, then in mixture, add the water of 40 ~ 50% of its quality, put into juice extractor, carry out squeezing the juice,
(2) the Rural Water aquaculture waste of above-mentioned process is flowed through immersion biofilter with 2m/s, in strainer, pass into ozone simultaneously, the flow of ozone is 7 ~ 10mg/min, then Rural Water aquaculture waste after filtration is passed in treating pond, add microbial preparation wherein, make the concentration of microbial preparation in Rural Water aquaculture waste be 400 ~ 720mg/L, slowly stir 40 ~ 50min, rotating speed is 600 ~ 700r/min, and temperature remains 40 ~ 45 DEG C;
(3) filter the Rural Water aquaculture waste in step (2), introduce in aeration tank and carry out lasting Air Exposure, gas-water ratio is 16:1, aeration 30 ~ 50min, and aeration terminates rear filtered and recycled microbial preparation;
(4) above-mentioned filtered liquid is introduced precipitation biological treatment reactor, in precipitation biological treatment reactor, carry out the preliminary solid-liquid separation reaction of mixed solution, the settling of generation all concentrates discharge except returned sluge, completes final solid-liquid separation;
(5) more isolated Rural Water aquaculture waste is filtered through ceramic membrane.
2. a kind of method processing Rural Water aquaculture waste according to claim 1, is characterized in that the preparation method of described microbial preparation is:
(1) spreading one deck lime powder bottom fermentation vat, thickness is 1 ~ 2cm, the wormwood that a layer thickness is 2 ~ 3cm drying is spread on lime powder top, then the mud got bottom the aquaculture pond of rural area is placed on above wormwood, add Rural Water aquaculture waste wherein, flood mud 5 ~ 6cm, keep temperature to be 35 ~ 40 DEG C, sealing and fermenting 12 ~ 14h;
(2) after sealing and fermenting terminates, stir 20 ~ 30min, rotating speed is 800 ~ 900r/min, then leaves standstill 5 ~ 10min, uses reverse osmosis membrane to filter;
(3) solution removing water in step (2) is put into container, add Nano microsphere wherein, often liter of solution adds 200 ~ 350g Nano microsphere, keeps temperature to be 30 ~ 40 DEG C, stirs 30 ~ 50min, then leaves standstill and filters.
3. a kind of method processing Rural Water aquaculture waste according to claim 2, is characterized in that the preparation method of described Nano microsphere is:
(1) nano silicon is put into container, add deionized water and polyoxyethylene glycol wherein, its add-on is that every gram of silicon-dioxide adds 3mL water respectively, 1mL polyoxyethylene glycol, stir, then shake in ultrasonic apparatus, add sodium hydroxide wherein after concussion 3 ~ 5min, add-on is 10 ~ 12% of nano titanium oxide quality, stir 30 ~ 50min, leave standstill, be cooled to 25 ~ 30 DEG C, filter;
The particulate matter of above-mentioned gained is put into container, adds the clay of particulate matter quality 30 ~ 35% wherein, add water wherein and carry out granulation, obtain ball shaped nano carrier;
Dried by the ball shaped nano carrier of above-mentioned gained, put into converter calcining 1 ~ 3h, temperature controls at 600 ~ 900 DEG C, and after sintering, cooling is dried.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107082534A (en) * | 2017-05-23 | 2017-08-22 | 江苏圣泰防腐设备东台有限公司 | A kind of livestock-raising sewage-treatment plant |
| CN108901673A (en) * | 2018-07-06 | 2018-11-30 | 新疆旭日昕昤环保科技有限公司 | Fig and dragon fruit and aquatic products integral type cultural method in self-loopa ecological water |
| CN112499893A (en) * | 2020-11-07 | 2021-03-16 | 湖南海佳食品科技股份有限公司 | Method for treating breeding sewage of grain ducks |
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| CN112499893A (en) * | 2020-11-07 | 2021-03-16 | 湖南海佳食品科技股份有限公司 | Method for treating breeding sewage of grain ducks |
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