CN109133502A - A kind of method of biological aerated filter classification processing Chinese turtle aquaculture effluent - Google Patents

A kind of method of biological aerated filter classification processing Chinese turtle aquaculture effluent Download PDF

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Publication number
CN109133502A
CN109133502A CN201810962270.9A CN201810962270A CN109133502A CN 109133502 A CN109133502 A CN 109133502A CN 201810962270 A CN201810962270 A CN 201810962270A CN 109133502 A CN109133502 A CN 109133502A
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layer
level
filter tank
biological aerated
filter
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CN201810962270.9A
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Inventor
秦斯祥
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Tianhe Lake District Of Bengbu City Yu Xiang Turtle Breeding Farmer Cooperatives
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Tianhe Lake District Of Bengbu City Yu Xiang Turtle Breeding Farmer Cooperatives
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Priority to CN201810962270.9A priority Critical patent/CN109133502A/en
Publication of CN109133502A publication Critical patent/CN109133502A/en
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    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F9/00—Multistage treatment of water, waste water or sewage
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/28—Treatment of water, waste water, or sewage by sorption
    • C02F1/281—Treatment of water, waste water, or sewage by sorption using inorganic sorbents
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/28—Treatment of water, waste water, or sewage by sorption
    • C02F1/283—Treatment of water, waste water, or sewage by sorption using coal, charred products, or inorganic mixtures containing them
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/42—Treatment of water, waste water, or sewage by ion-exchange
    • C02F2001/425—Treatment of water, waste water, or sewage by ion-exchange using cation exchangers
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2101/00—Nature of the contaminant
    • C02F2101/30—Organic compounds
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
    • C02F2103/20—Nature of the water, waste water, sewage or sludge to be treated from animal husbandry
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F3/00—Biological treatment of water, waste water, or sewage
    • C02F3/02—Aerobic processes

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  • Life Sciences & Earth Sciences (AREA)
  • Hydrology & Water Resources (AREA)
  • Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Water Supply & Treatment (AREA)
  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Biological Treatment Of Waste Water (AREA)
  • Water Treatment By Sorption (AREA)

Abstract

The invention discloses kind of a methods for biological aerated filter classification processing Chinese turtle aquaculture effluent, the method carries out in biological aerated filter, the biological aerated filter includes level-one filter tank and second level filter tank, waste water is successively handled through first-level filtering pond and second level filter tank, the packing layer in level-one filter tank haves three layers, and wherein bottom is active carbon layer, and middle layer is haydite layer, upper layer is active carbon layer structure, and the packing layer in second level filter tank is montmorillonite.Technical solution of the present invention can effectively shorten wastewater treatment cycle, and improve removal efficiency of nitrogen and phosphorus in waste water, thus realize the efficient process of Chinese turtle aquaculture effluent, it is at low cost, and suitable large-scale promotion easy to operate.

Description

A kind of method of biological aerated filter classification processing Chinese turtle aquaculture effluent
Technical field
The present invention relates to breeding soft-shell turtle technical field more particularly to a kind of biological aerated filter classification processing breeding soft-shell turtle are useless The method of water.
Background technique
China is the country that breeding soft-shell turtle is largest in the world, and 2010, breeding soft-shell turtle amount was up to 29.08 ten thousand t, growth rate Up to 13.1%, nearly 15,000,000,000 yuan of annual value of production, to keep soft-shelled turtle fast-growth, soft-shelled turtle is generally using high protein fish-meal as staple food.By In efficiency of feed utilization only 70%~80%, breeding wastewater contains a large amount of high protein feeds and soft-shelled turtle excrement, and greenhouse soft-shelled turtle is caused to be supported Grow the nitrogen (N) and phosphorus (P) that waste water contains high concentration.The unordered discharge of greenhouse Chinese turtle aquaculture effluent has become Yangtze River Delta rural area One of important pollution sources, it is especially particularly evident in greenhouse breeding soft-shell turtle compact district, do not have also at present a set of feeding for greenhouse soft-shelled turtle Waste water quality is grown, and contaminant removal efficiency is high, operational administrative is simple, is suitble to the processing method promoted and applied.
Biofilter has many advantages, such as that operating load is high, occupied area is small, investment is small, treatment effeciency is high, supports in aquatic products It grows in wastewater treatment and is widely applied, and the selection of filler all has very big influence to filter tank treatment efficiency, operating cost etc., is to mention Rise the key of biological aerated filter treatment effect.Haydite and active carbon filler have flourishing pore structure, huge specific surface Long-pending and stable physics and chemical property is excellent adsorbent and bio-carrier.
Summary of the invention
Based on the low technical problem of Chinese turtle aquaculture effluent treatment effeciency existing for background technique, the invention proposes a kind of exposures The method of gas biofilter classification processing Chinese turtle aquaculture effluent, can effectively shorten wastewater treatment cycle, and improve nitrogen in waste water Tp removal rate, to realize the efficient process of Chinese turtle aquaculture effluent.
A kind of method of biological aerated filter classification processing Chinese turtle aquaculture effluent proposed by the present invention, the method are being aerated It is carried out in biofilter, the biological aerated filter includes level-one filter tank and second level filter tank, and waste water is successively through first-level filtering pond and two The processing of grade filter tank.
Preferably, the packing layer in level-one filter tank haves three layers, wherein bottom is active carbon layer, and middle layer is haydite layer, upper layer For active carbon layer structure.
Preferably, the packing layer in second level filter tank is montmorillonite.
Preferably, the described method comprises the following steps:
(1) load filler: successively device active carbon-haydite-active carbon, bottom are living from the bottom up in biological aerated filter Property charcoal layer height be 5-20mm, haydite layer height be 50-100m, upper layer active carbon layer height be 30-40mm；
(2) biofilm: starting waste water lifting pump flows into waste water to be processed in biological aerated filter and floods filter material layer, bored exposure Biofilm culture in 1-4 days；
(3) level-one filter tank is run: being brought into operation after stablizing, setting water flow is 100-200L/h；
(4) second level filter tank is run: being loaded one layer of montmorillonite in second level filter tank, is highly 40-90mm, by level-one filter pool Treated, and water is pumped into second level filter tank, water flow 100-200L/h.
Preferably, bottom activated carbon particle size is 0.1-1mm in step (1), haydite partial size is 2-6mm, upper layer active carbon Partial size is 1-10mm.
Preferably, in step (2), gas-water ratio 3-4:1.
Preferably, in step (3), gas-water ratio 4.57-5.5:1.
Preferably, water conservancy load is 2.5-3m in step (3)3/(m2h)。
Preferably, montmorillonite partial size is 2-10mm in second level filter tank.
Preferably, being equipped with separation net, the separation net between the upper layer active carbon layer and middle layer haydite layer in level-one filter tank Mesh diameter be less than upper layer active carbon particle size.
Technical solution of the present invention uses haydite and active carbon combined stuffing, and the group in a manner of active carbon-haydite-active carbon It closes, efficiently uses haydite to the strong absorption property and active carbon of nitrogen phosphorus to the absorption property of impurity and dissolved organic matter, making pottery Deep processing is carried out using upper layer active carbon on the basis of grain absorption, further removing remaining a small amount of ammonia nitrogen and solubility in waste water has Machine object.It is laid with one layer of comparatively dense active carbon in haydite layer bottom, granularity of activated carbon is smaller, therefore specific surface with higher Product, it is larger to the adsorption capacity of the intracorporal nitrogen phosphorus compound of water, organic matter and oxygen in water, so that nitrogen phosphorus compound, Organic matter and oxygen in water are more enriched on bottom active carbon, provide abundant necessary nutrients for the formation of biomembrane Matter is conducive to the formation of biomembrane, and the period for shortening Biofilm Colonization improves the waste water treatment efficiency in filter tank, furthermore bottom activity The phenomenon that charcoal helps to improve the adhesive force of biomembrane, and the turbulent flow for avoiding high gas-water ratio from being formed causes biofilm detachment.Aeration quantity Increase, promote the update of biomembrane, while the effect of stronger air scour makes biofilm detachment, increases water turbidity, hangs During film, required oxygen concentration is lower during biofilm formation, and setting gas-water ratio is 3-4:1, and being both able to satisfy microorganism growth needs It asks, and can ensure that stablizing for biomembrane adheres to, after biofilm terminates and stablizes, adjustment gas-water ratio is 4.57-5.5:1, because The nitrogen oxygen demand of unit concentration is 4.57 times of the oxygen demand of unit concentration organic matter, 4.57-5.5:1 in biological aerated filter Gas-water ratio range both can guarantee the sufficient oxygen demand of biomembrane, the energy again under bottom active carbon and the stronger adhesive force of biomembrane Falling off for biomembrane is avoided, the waste treatment capacity and efficiency in filter tank are further increased.Upper layer active carbon layer and middle layer haydite layer Between separation net is set, be kept completely separate upper layer active carbon with haydite layer, when activated carbon adsorption close to saturation when, only need to by every Off-network takes out upper layer, and desorption can be completed with several hours of being exposed to the sun under air, realizes that active carbon efficiently utilizes and repeat benefit Purpose reduces cost.
After the long-time use of level-one filter tank, treated, and water may have slight turbidity and a small amount of heavy metal ion Deng water being pumped into second level filter tank, montmorillonite has very strong adsorption capacity and cation exchange property, passes through montmorillonite physics Under absorption and the double action of chemisorption, suspended matter and metal ion etc. in water, the water quality energy handled are further adsorbed Meet breeding soft-shell turtle water quality requirement, secondary use can be carried out, saves water resource.Therefore, technical solution of the present invention has efficient Waste treatment capacity, the related dopant species of processing are comprehensive, at low cost, and suitable large-scale promotion easy to operate.
Specific embodiment
In the following, technical solution of the present invention is described in detail by specific embodiment.
Embodiment 1
A kind of method of biological aerated filter classification processing Chinese turtle aquaculture effluent, the method in biological aerated filter into Row, the biological aerated filter include level-one filter tank and second level filter tank, and waste water is successively handled through first-level filtering pond and second level filter tank, and one The packing layer in grade filter tank haves three layers, and wherein bottom is active carbon layer, and middle layer is haydite layer, and upper layer is active carbon layer structure, level-one Separation net is equipped between the upper layer active carbon layer and middle layer haydite layer in filter tank, the mesh diameter of the separation net is less than upper layer activity The packing layer of the particle size of charcoal, second level filter tank is montmorillonite, be the described method comprises the following steps:
(1) it loads filler: being first uniformly mixed haydite and active carbon, the mass ratio of haydite and active carbon is 10:1, filling Bottom mixed filler layer is used as in level-one filter tank, mixed fillers layer height is 100m, activated carbon particle size 1mm, haydite partial size For 6mm, layer of active carbon layer is loaded on mixed filler layer, upper layer active carbon layer height is 60mm, upper layer activated carbon particle size For 10mm；
(2) biofilm: starting waste water lifting pump flows into waste water to be processed in biological aerated filter and floods packing layer, air water Than for 4:1, bored exposure biofilm culture in 1 day；
(3) level-one filter tank is run: being brought into operation after stablizing, setting water flow is 200L/h, gas-water ratio 5.5:1, water conservancy Load is 3m3/(m2h)；
(4) second level filter tank is run: being loaded one layer of montmorillonite in second level filter tank, is highly 90mm, at level-one filter pool Water after reason is pumped into second level filter tank, water flow 200L/h, and montmorillonite partial size is 10mm in second level filter tank.
The present embodiment is lower 15 degrees Celsius progress in room temperature, and the biofilm period is 25 days, using following analysis method: COD: COD Quick testing instrument (measurement is CODcr)；Total nitrogen: over cure acid oxidase-ultraviolet spectrophotometry；Total phosphorus: potassium peroxydisulfate disappears Solution.Through detecting, COD removal rate is 91%, and the removal rate of total nitrogen is up to 97.1%, and total tp removal rate is up to 96.3%.
Embodiment 2
A kind of method of biological aerated filter classification processing Chinese turtle aquaculture effluent, the method in biological aerated filter into Row, the biological aerated filter include level-one filter tank and second level filter tank, and waste water is successively handled through first-level filtering pond and second level filter tank, and one The packing layer in grade filter tank haves three layers, and wherein bottom is active carbon layer, and middle layer is haydite layer, and upper layer is active carbon layer structure, level-one Separation net is equipped between the upper layer active carbon layer and middle layer haydite layer in filter tank, the mesh diameter of the separation net is less than upper layer activity The packing layer of the particle size of charcoal, second level filter tank is montmorillonite, be the described method comprises the following steps:
(1) it loads filler: being first uniformly mixed haydite and active carbon, the mass ratio of haydite and active carbon is 4:1, is seated in Bottom mixed filler layer is used as in level-one filter tank, mixed fillers layer height is 75m, activated carbon particle size 0.6mm, and haydite partial size is 5mm loads layer of active carbon layer on mixed filler layer, and upper layer active carbon layer height is 50mm, and upper layer activated carbon particle size is 3mm；
(2) biofilm: starting waste water lifting pump flows into waste water to be processed in biological aerated filter and floods packing layer, air water Than for 3.3:1, bored exposure biofilm culture in 3 days；
(3) level-one filter tank is run: being brought into operation after stablizing, setting water flow is 160L/h, gas-water ratio 4.8:1, water conservancy Load is 2.6m3/(m2h)；
(4) second level filter tank is run: being loaded one layer of montmorillonite in second level filter tank, is highly 70mm, at level-one filter pool Water after reason is pumped into second level filter tank, water flow 130L/h, and montmorillonite partial size is 5mm in second level filter tank.
The present embodiment is lower 15 degrees Celsius progress in room temperature, and the biofilm period is 25 days, using following analysis method: COD: COD Quick testing instrument (measurement is CODcr)；Total nitrogen: over cure acid oxidase-ultraviolet spectrophotometry；Total phosphorus: potassium peroxydisulfate disappears Solution.Through detecting, COD removal rate is 90.3%, and the removal rate of total nitrogen is up to 98.2%, and total tp removal rate is up to 95.8%.
Embodiment 3
A kind of method of biological aerated filter classification processing Chinese turtle aquaculture effluent, the method in biological aerated filter into Row, the biological aerated filter include level-one filter tank and second level filter tank, and waste water is successively handled through first-level filtering pond and second level filter tank, and one The packing layer in grade filter tank haves three layers, and wherein bottom is active carbon layer, and middle layer is haydite layer, and upper layer is active carbon layer structure, level-one Separation net is equipped between the upper layer active carbon layer and middle layer haydite layer in filter tank, the mesh diameter of the separation net is less than upper layer activity The packing layer of the particle size of charcoal, second level filter tank is montmorillonite, be the described method comprises the following steps:
(1) it loads filler: being first uniformly mixed haydite and active carbon, the mass ratio of haydite and active carbon is 3:1, is seated in Bottom mixed filler layer is used as in level-one filter tank, mixed fillers layer height is 50m, activated carbon particle size 0.1mm, and haydite partial size is 2mm loads layer of active carbon layer on mixed filler layer, and upper layer active carbon layer height is 40mm, and upper layer activated carbon particle size is 1mm；
(2) biofilm: starting waste water lifting pump flows into waste water to be processed in biological aerated filter and floods packing layer, air water Than for 3:1, bored exposure biofilm culture in 4 days；
(3) level-one filter tank is run: being brought into operation after stablizing, setting water flow is 100L/h, gas-water ratio 4.57:1, water conservancy Load is 2.5m3/(m2h)；
(4) second level filter tank is run: being loaded one layer of montmorillonite in second level filter tank, is highly 40mm, at level-one filter pool Water after reason is pumped into second level filter tank, water flow 100L/h, and montmorillonite partial size is 2-10mm in second level filter tank.
The present embodiment is lower 15 degrees Celsius progress in room temperature, and the biofilm period is 25 days, using following analysis method: COD: COD Quick testing instrument (measurement is CODcr)；Total nitrogen: over cure acid oxidase-ultraviolet spectrophotometry；Total phosphorus: potassium peroxydisulfate disappears Solution.Through detecting, COD removal rate is 87.1%, and the removal rate of total nitrogen is up to 98.5%, and total tp removal rate is up to 95%.
The foregoing is only a preferred embodiment of the present invention, but scope of protection of the present invention is not limited thereto, Anyone skilled in the art in the technical scope disclosed by the present invention, according to the technique and scheme of the present invention and its Inventive concept is subject to equivalent substitution or change, should be covered by the protection scope of the present invention.

Claims (10)

1. a kind of method of biological aerated filter classification processing Chinese turtle aquaculture effluent, which is characterized in that the method is given birth in aeration It is carried out in object filter tank, the biological aerated filter includes level-one filter tank and second level filter tank, and waste water is successively through first-level filtering pond and second level Filter tank processing.
2. a kind of method of biological aerated filter classification processing Chinese turtle aquaculture effluent according to claim 1, feature exist In the packing layer in level-one filter tank haves three layers, and wherein bottom is active carbon layer, and middle layer is haydite layer, and upper layer is active carbon layer knot Structure.
3. a kind of method of biological aerated filter classification processing Chinese turtle aquaculture effluent according to claim 1 or 2, feature It is, the packing layer in second level filter tank is montmorillonite.
4. a kind of method of biological aerated filter classification processing Chinese turtle aquaculture effluent according to claim 3, feature exist In the described method comprises the following steps:
(1) filler is loaded: successively device active carbon-haydite-active carbon from the bottom up in biological aerated filter, bottom active carbon Layer height is 5-20mm, and haydite layer height is 50-100m, and upper layer active carbon layer height is 30-40mm；
(2) biofilm: starting waste water lifting pump flows into waste water to be processed in biological aerated filter and floods filter material layer, bored exposure 1-4 Its biofilm culture；
(3) level-one filter tank is run: being brought into operation after stablizing, setting water flow is 100-200L/h；
(4) second level filter tank is run: being loaded one layer of montmorillonite in second level filter tank, is highly 40-90mm, level-one filter pool is handled Water afterwards is pumped into second level filter tank, water flow 100-200L/h.
5. a kind of method of biological aerated filter classification processing Chinese turtle aquaculture effluent according to claim 4, feature exist In in step (1), bottom activated carbon particle size is 0.1-1mm, and haydite partial size is 2-6mm, and upper layer activated carbon particle size is 1-10mm.
6. a kind of method of biological aerated filter classification processing Chinese turtle aquaculture effluent according to claim 4, feature exist In, in step (2), gas-water ratio 3-4:1.
7. a kind of method of biological aerated filter classification processing Chinese turtle aquaculture effluent according to claim 4, feature exist In, in step (3), gas-water ratio 4.57-5.5:1.
8. a kind of method of biological aerated filter classification processing Chinese turtle aquaculture effluent according to claim 4, feature exist In in step (3), water conservancy load is 2.5-3m3/(m2h)。
9. a kind of method of biological aerated filter classification processing Chinese turtle aquaculture effluent according to claim 4, feature exist In montmorillonite partial size is 2-10mm in second level filter tank.
10. a kind of side of biological aerated filter classification processing Chinese turtle aquaculture effluent according to claim 2-9 any one Method, which is characterized in that separation net, the net of the separation net are equipped between the upper layer active carbon layer and middle layer haydite layer in level-one filter tank Bore dia is less than the particle size of upper layer active carbon.
CN201810962270.9A 2018-08-22 2018-08-22 A kind of method of biological aerated filter classification processing Chinese turtle aquaculture effluent Withdrawn CN109133502A (en)

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Application Number Priority Date Filing Date Title
CN201810962270.9A CN109133502A (en) 2018-08-22 2018-08-22 A kind of method of biological aerated filter classification processing Chinese turtle aquaculture effluent

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Application publication date: 20190104