A kind of high-efficiency degradation and denitrification treatment system and treatment method of aquaculture wastewater

A technology for aquaculture wastewater and nitrogen treatment, which is applied in the fields of water/sewage multi-stage treatment, water/sludge/sewage treatment, chemical instruments and methods, etc. Low cost, overcoming slow reproduction and stable water quality

Active Publication Date: 2018-07-10
INST OF AGRI RESOURCES & ENVIRONMENT SHANDONG ACADEMY OF AGRI SCI
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Aiming at the problems of high COD and high ammonia nitrogen in the existing aquaculture wastewater, which are difficult to handle and the degradation efficiency is low, and the wastewater cannot be discharged up to the standard, the present invention provides an efficient degradation and denitrification treatment system and treatment method for aquaculture wastewater

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  • A kind of high-efficiency degradation and denitrification treatment system and treatment method of aquaculture wastewater
  • A kind of high-efficiency degradation and denitrification treatment system and treatment method of aquaculture wastewater
  • A kind of high-efficiency degradation and denitrification treatment system and treatment method of aquaculture wastewater

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Embodiment 1

[0048] A high-efficiency degradation and denitrification treatment system for aquaculture wastewater, the structure of which is as follows: figure 1 , figure 2 As shown, it includes a regulating tank 1, a grit chamber 2, a feed tank 3, an anaerobic reactor 4, a pre-oxidation-nitrosation integrated tank 5, anammox reactor 6 and an effluent reflux tank 7 connected in sequence, The anaerobic reactor 4 is an anaerobic internal circulation reactor, and the preoxidation-nitrosation integrated pool 5 includes two cylindrical pool bodies inside and outside, and an annular outer ring pool chamber is formed between the pool body of the outer layer and the pool body of the inner layer , the pool body of the inner layer forms an inner ring pool cavity, and the inner ring pool cavity communicates with the outer ring pool cavity, and a diversion wall 9 is arranged in the outer ring pool cavity of the pre-oxidation-nitrosation integrated pool, and the inner ring pool cavity A paddle mixer ...

Embodiment 2

[0052] Treat 30t / d dairy farm wastewater, the wastewater quality is COD 3000~4000mg / L, NH 4 -N 550~650mg / L, pH 7.8~8.0,

[0053] Utilize the treatment method of embodiment 1 treatment system to carry out efficient degradation and denitrification of aquaculture wastewater,

[0054] Regulating pool volume 30m 3 , the size is length × width × height = 5.0 × 3.0 × 2.0m; the volume of the feed tank is 30m 3 , the size is length × width × height = 4.0 × 3.0 × 2.5m; the grit chamber adopts an advection type grit chamber with a volume of 7.2m 3 , the size is length × width × height = 6.0 × 1.0 × 1.2m; the anaerobic reactor adopts IC reactor with a volume of 100m 3 , the size is diameter × height = φ3.6 × 9.8m; the volume of pre-oxidation-denitrification integrated pool is 6m 3 , the size is diameter × height = φ1.5 × 1.0m, the diameter of the inner ring is 1.06m, and a paddle mixer is installed in the chamber of the inner ring pool, and the power of the mixer is 0.75kW; the anammo...

Embodiment 3

[0064] Treat 100t / d of dry pig farm wastewater, the quality of the breeding wastewater is COD2000~3000mg / L, NH 4 -N 600~700mg / L, pH 7.2~7.8

[0065] Utilize the treatment method of embodiment 1 treatment system to carry out efficient degradation and denitrification of aquaculture wastewater,

[0066] Regulating pool volume 100m 3 , the size is length × width × height = 5.0 × 5.0 × 4.0m; the volume of the feed tank is 60m 3 , the size is length × width × height = 5.0 × 4.0 × 3.0m; the grit chamber adopts an advection type grit chamber with a volume of 24m 3 , the size is length × width × height = 10.0 × 2.0 × 1.2m; the anaerobic reactor adopts IC reactor with a volume of 300m 3 , the size is diameter×height=φ5.2×14.0m;

[0067] Pre-oxidation - denitrification integrated pool volume 21m 3 , the size is diameter × height = φ4.2 × 1.5m, the diameter of the inner ring is 3.0m, and a paddle mixer is installed in the chamber of the inner ring pool, and the power of the mixer is ...

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Abstract

The invention relates to a treatment system and treatment method for high-efficiency degradation and denitrification of aquaculture wastewater, including a regulating tank, a grit chamber, a feeding tank, an anaerobic reactor, a pre-oxidation-nitrosation integrated tank, and anaerobic ammonium oxidation Reactor and effluent reflux pool, the anaerobic reactor is an anaerobic internal circulation reactor, the waste water flows through the outer ring pool cavity and then enters the inner ring pool cavity, and the anaerobic ammonium oxidation reactor is an upflow anaerobic reactor Oxygen packing tower, aquaculture wastewater undergoes purification reactions through the above structures in sequence, and undergoes hydrolysis, sand removal, anaerobic, nitrosation, anaerobic ammonia oxidation and other reactions respectively. After multi-stage degradation treatment, harmful pollutants in wastewater can be efficiently removed. The present invention combines the anaerobic process and the anaerobic ammonium oxidation process, firstly removes COD through anaerobic process, and then denitrifies through the anaerobic ammonium oxidation process, so as to realize efficient removal of high-concentration pollution components in aquaculture wastewater, and the process is easy to operate and stable in operation.

Description

technical field [0001] The invention relates to a high-efficiency degradation and denitrification treatment system and treatment method for aquaculture wastewater, belonging to the technical field of sewage treatment. Background technique [0002] In recent years, with the continuous expansion of the breeding scale and the sharp increase in the number of breeding, a large number of livestock and poultry feces and sewage have become pollution sources. If the pollution generated by these farms is not dealt with in time, it will definitely cause great harm to the environment. The deterioration of the ecological environment, the decline in the quality of livestock and poultry products and the endangerment of human health, and the lagging of pollution control technology in the breeding industry seriously restrict the sustainable development of the breeding industry. [0003] Breeding wastewater has the characteristics of high COD and high ammonia nitrogen. Taking the flushing was...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C02F9/14
Inventor 姚利郭洪海杨光付龙云王艳芹罗德学夏江华袁长波
Owner INST OF AGRI RESOURCES & ENVIRONMENT SHANDONG ACADEMY OF AGRI SCI
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