CN109133503A - A kind of greenhouse Chinese turtle aquaculture effluent high-efficiency purifying method - Google Patents

A kind of greenhouse Chinese turtle aquaculture effluent high-efficiency purifying method Download PDF

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Publication number
CN109133503A
CN109133503A CN201810962427.8A CN201810962427A CN109133503A CN 109133503 A CN109133503 A CN 109133503A CN 201810962427 A CN201810962427 A CN 201810962427A CN 109133503 A CN109133503 A CN 109133503A
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China
Prior art keywords
layer
active carbon
zeolite
purifying method
aquaculture effluent
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CN201810962427.8A
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Chinese (zh)
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 CN201810962427.8A priority Critical patent/CN109133503A/en
Publication of CN109133503A publication Critical patent/CN109133503A/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
    • 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
    • C02F3/00—Biological treatment of water, waste water, or sewage
    • C02F3/02—Aerobic processes
    • 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

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  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Hydrology & Water Resources (AREA)
  • Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Water Supply & Treatment (AREA)
  • Organic Chemistry (AREA)
  • Biodiversity & Conservation Biology (AREA)
  • Microbiology (AREA)
  • Inorganic Chemistry (AREA)
  • Biological Treatment Of Waste Water (AREA)
  • Farming Of Fish And Shellfish (AREA)

Abstract

The invention discloses a kind of greenhouse Chinese turtle aquaculture effluent high-efficiency purifying methods, the method carries out in biological aerated filter, the filtrate of biological aerated filter is made of zeolite and active carbon, the filter material layer of biological aerated filter has 2 layers, it is active carbon layer at the middle and upper levels, and lower layer is the mixed filler layer of zeolite and active carbon.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 greenhouse Chinese turtle aquaculture effluent high-efficiency purifying method
Technical field
The present invention relates to breeding soft-shell turtle technical field more particularly to a kind of greenhouse Chinese turtle aquaculture effluent high-efficiency purifying methods.
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.Zeolite and carbon leaching material 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 temperature Room Chinese turtle aquaculture effluent high-efficiency purifying method, can effectively shorten wastewater treatment cycle, and improve removal efficiency of nitrogen and phosphorus in waste water, from And realize the efficient process of Chinese turtle aquaculture effluent.
A kind of greenhouse Chinese turtle aquaculture effluent high-efficiency purifying method proposed by the present invention, the method is in biological aerated filter It carries out, the filtrate of the biological aerated filter is made of zeolite and active carbon.
Preferably, the filter material layer of the biological aerated filter has 2 layers, it is at the middle and upper levels active carbon layer, lower layer is zeolite With the mixed filler layer of active carbon.
Preferably, the described method comprises the following steps:
(1) it loads filtrate: being first uniformly mixed zeolite and active carbon, be seated in biological aerated filter and mixed as bottom Packing layer is highly 50-100m, and layer of active carbon layer is loaded on mixed filler layer, and upper layer active carbon layer height is 40- 60mm；
(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) it runs: bringing into operation after stablizing, setting water flow is 100-200L/h.
Preferably, bottom activated carbon particle size is 0.1-1mm, sized zeolite particles 3-5mm, upper layer active carbon in step (1) Partial size is 1-10mm.
Preferably, in step (2), gas-water ratio 3-3.5:1.
Preferably, in step (3), gas-water ratio 4.57-5:1.
Preferably, water conservancy load is 2.5-3m in step (3)3/(m2h)。
Preferably, the mass ratio of zeolite and active carbon is 3-10:1 in mixed filler layer.
Preferably, being equipped with separation net, the mesh diameter of the separation net between upper layer active carbon layer and mixed filler layer Less than the particle size of upper layer active carbon.
Technical solution of the present invention is using zeolite and active carbon combined stuffing, strong absorption property of the effective use zeolite to nitrogen phosphorus With active carbon to the absorption property of impurity and dissolved organic matter, deep add is carried out using upper layer active carbon on the basis of zeolite absorption Work further removes remaining a small amount of ammonia nitrogen and dissolved organic matter in waste water.Zeolite and active carbon are uniformly mixed as mixed Packing layer is closed, the lesser active carbon of partial size is dispersed between the biggish zeolite granular of partial size, and granularity of activated carbon is smaller, therefore Specific surface area with higher, 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 in mixed filler layer, the mixing of zeolite and active carbon Filling provides abundant and necessary nutriment for the formation of biomembrane, is conducive to the formation of biomembrane, shortens Biofilm Colonization Period improve filter tank waste water treatment efficiency, furthermore the active carbon in mixed filler layer helps to improve the attachment of biomembrane The phenomenon that power, the turbulent flow for avoiding high gas-water ratio from being formed causes biofilm detachment.The increase of aeration quantity promotes biomembrane more Newly, while the effect of stronger air scour makes biofilm detachment, increases water turbidity, during biofilm, institute during biofilm formation The oxygen concentration needed is lower, and setting gas-water ratio is 3-3.5:1, has not only been able to satisfy microorganism growth demand, but also can ensure the steady of biomembrane Fixed attachment, after biofilm terminates and stablizes, adjustment gas-water ratio is 4.57-5:1, because of the unit concentration in biological aerated filter Nitrogen oxygen demand is 4.57 times of the oxygen demand of unit concentration organic matter, and the gas-water ratio range of 4.57-5:1 both can guarantee biomembrane Sufficient oxygen demand, bottom active carbon under the stronger adhesive force of biomembrane again be avoided that falling off for biomembrane, further mention The waste treatment capacity and efficiency in high filter tank.Separation net is set between upper layer active carbon layer and mixed filler layer, keeps upper layer active Charcoal is kept completely separate with zeolite layer, when activated carbon adsorption is close to saturation, need to only be taken out upper layer by separation net, and sudden and violent under air Shining several hours can be completed desorption, realize active carbon efficiently utilize with reusable purpose, reduce cost.Therefore, originally Inventing filter tank has efficient waste treatment capacity, 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 greenhouse Chinese turtle aquaculture effluent high-efficiency purifying method, the method carry out in biological aerated filter, aeration life The filter material layer in object filter tank has 2 layers, is at the middle and upper levels active carbon layer, and lower layer is the mixed filler layer of zeolite and active carbon, and upper layer is living Property layer of charcoal and mixed filler layer between be equipped with separation net, the partial size that the mesh diameter of the separation net is less than upper layer active carbon is big It is small, it the described method comprises the following steps:
(1) it loads filtrate: being first uniformly mixed zeolite and active carbon, be seated in biological aerated filter and mixed as bottom Packing layer is highly 100m, and the mass ratio of zeolite and active carbon is 10:1, mixed filler layer activated carbon particle size in mixed filler layer For 1mm, sized zeolite particles 5mm, 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 is 10mm；
(2) biofilm: starting waste water lifting pump flows into waste water to be processed in biological aerated filter and floods filter material layer, air water Than for 3.5:1, bored exposure biofilm culture in 1 day；
(3) it runs: bringing into operation after stablizing, setting water flow is 200L/h, and gas-water ratio 5:1, water conservancy load is 3m3/ (m2h)。
The present embodiment is lower 15 degrees Celsius progress in room temperature, and the biofilm period is 21 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 85%, and the removal rate of total nitrogen is up to 96.3%, and total tp removal rate is up to 97%.
Embodiment 2
A kind of greenhouse Chinese turtle aquaculture effluent high-efficiency purifying method, the method carry out in biological aerated filter, aeration life The filter material layer in object filter tank has 2 layers, is at the middle and upper levels active carbon layer, and lower layer is the mixed filler layer of zeolite and active carbon, and upper layer is living Property layer of charcoal and mixed filler layer between be equipped with separation net, the partial size that the mesh diameter of the separation net is less than upper layer active carbon is big It is small, it the described method comprises the following steps:
(1) it loads filtrate: being first uniformly mixed zeolite and active carbon, be seated in biological aerated filter and mixed as bottom Packing layer is highly 70m, and the mass ratio of zeolite and active carbon is 6:1 in mixed filler layer, and mixed filler layer activated carbon particle size is 0.4mm, sized zeolite particles 3.5mm, load layer of active carbon layer on mixed filler layer, and upper layer active carbon layer height is 55mm, upper layer activated carbon particle size are 3mm；
(2) biofilm: starting waste water lifting pump flows into waste water to be processed in biological aerated filter and floods filter material layer, air water Than for 3.2:1, bored exposure biofilm culture in 2 days；
(3) it runs: bringing into operation after stablizing, setting water flow is 140L/h, gas-water ratio 4.6:1, and water conservancy load is 2.7m3/(m2h)。
The present embodiment is lower 15 degrees Celsius progress in room temperature, and the biofilm period is 21 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 89%, and the removal rate of total nitrogen is up to 98.4%, and total tp removal rate is up to 97.8%.
Embodiment 3
A kind of greenhouse Chinese turtle aquaculture effluent high-efficiency purifying method, the method carry out in biological aerated filter, aeration life The filter material layer in object filter tank has 2 layers, is at the middle and upper levels active carbon layer, and lower layer is the mixed filler layer of zeolite and active carbon, and upper layer is living Property layer of charcoal and mixed filler layer between be equipped with separation net, the partial size that the mesh diameter of the separation net is less than upper layer active carbon is big It is small, it the described method comprises the following steps:
(1) it loads filtrate: being first uniformly mixed zeolite and active carbon, be seated in biological aerated filter and mixed as bottom Packing layer is highly 50m, and the mass ratio of zeolite and active carbon is 3:1 in mixed filler layer, and mixed filler layer activated carbon particle size is 0.1mm, sized zeolite particles 3mm load layer of active carbon layer on mixed filler layer, and upper layer active carbon layer height is 40mm, 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 filter material layer, air water Than for 3:1, bored exposure biofilm culture in 4 days；
(3) it runs: bringing into operation after stablizing, setting water flow is 100L/h, gas-water ratio 4.57:1, and water conservancy load is 2.5m3/(m2h)。
The present embodiment is lower 15 degrees Celsius progress in room temperature, and the biofilm period is 21 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 (9)

1. a kind of greenhouse Chinese turtle aquaculture effluent high-efficiency purifying method, which is characterized in that the method in biological aerated filter into Row, the filtrate of the biological aerated filter are made of zeolite and active carbon.
2. a kind of greenhouse Chinese turtle aquaculture effluent high-efficiency purifying method according to claim 1, which is characterized in that the aeration The filter material layer of biofilter has 2 layers, is at the middle and upper levels active carbon layer, and lower layer is the mixed filler layer of zeolite and active carbon.
3. a kind of greenhouse Chinese turtle aquaculture effluent high-efficiency purifying method according to claim 2, which is characterized in that the method The following steps are included:
(1) it loads filtrate: being first uniformly mixed zeolite and active carbon, be seated in biological aerated filter as bottom mixed fillers Layer, is highly 50-100m, and layer of active carbon layer is loaded on mixed filler layer, and upper layer active carbon layer height is 40-60mm；
(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) it runs: bringing into operation after stablizing, setting water flow is 100-200L/h.
4. a kind of greenhouse Chinese turtle aquaculture effluent high-efficiency purifying method according to claim 3, which is characterized in that step (1) In, bottom activated carbon particle size is 0.1-1mm, and sized zeolite particles 3-5mm, upper layer activated carbon particle size is 1-10mm.
5. a kind of greenhouse Chinese turtle aquaculture effluent high-efficiency purifying method according to claim 3, which is characterized in that step (2) In, gas-water ratio 3-3.5:1.
6. a kind of greenhouse Chinese turtle aquaculture effluent high-efficiency purifying method according to claim 3, which is characterized in that step (3) In, gas-water ratio 4.57-5:1.
7. a kind of greenhouse Chinese turtle aquaculture effluent high-efficiency purifying method according to claim 3, which is characterized in that step (3) In, water conservancy load is 2.5-3m3/(m2h)。
8. a kind of greenhouse Chinese turtle aquaculture effluent high-efficiency purifying method, feature according to claim 2-7 any one exist In the mass ratio of zeolite and active carbon is 3-10:1 in mixed filler layer.
9. a kind of greenhouse Chinese turtle aquaculture effluent high-efficiency purifying method according to claim 8, which is characterized in that upper layer activity Separation net is equipped between layer of charcoal and mixed filler layer, the mesh diameter of the separation net is less than the particle size of upper layer active carbon.
CN201810962427.8A 2018-08-22 2018-08-22 A kind of greenhouse Chinese turtle aquaculture effluent high-efficiency purifying method Withdrawn CN109133503A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110921980A (en) * 2019-11-13 2020-03-27 河海大学 Electrochemical enhanced ozone-biological activated carbon water treatment equipment and method for treating water by using same

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110921980A (en) * 2019-11-13 2020-03-27 河海大学 Electrochemical enhanced ozone-biological activated carbon water treatment equipment and method for treating water by using same

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