Culture wastewater efficient degrading and denitrifying treatment system and treatment method thereof

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. Slow reproduction, low processing costs, and stable effects

Active Publication Date: 2016-05-25
INST OF AGRI RESOURCES & ENVIRONMENT SHANDONG ACADEMY OF AGRI SCI
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  • Summary
  • 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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  • Culture wastewater efficient degrading and denitrifying treatment system and treatment method thereof
  • Culture wastewater efficient degrading and denitrifying treatment system and treatment method thereof
  • Culture wastewater efficient degrading and denitrifying treatment system and treatment method thereof

Examples

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Embodiment 1

[0048] A high-efficiency degradation and denitrification treatment system for aquaculture wastewater, with a structure such as figure 1 , figure 2 As shown, it includes the regulating tank 1, the grit tank 2, the feed tank 3, the anaerobic reactor 4, the pre-oxidation-nitrosation integrated tank 5, the anaerobic ammonia oxidation reactor 6 and the effluent return tank 7, which are connected in sequence, The anaerobic reactor 4 is an anaerobic internal circulation reactor. The pre-oxidation-nitrosation integrated tank 5 includes two cylindrical tank bodies inside and outside, and an annular outer ring tank cavity is formed between the outer tank body and the inner tank body. , The inner tank body encloses an inner ring tank cavity, the inner ring tank cavity is connected with the outer ring tank cavity, the pre-oxidation-nitrosation integrated tank outer ring tank cavity is provided with a diversion wall 9 inside the inner ring tank cavity A paddle agitator is provided, the out...

Embodiment 2

[0052] Treating 30t / d of wastewater from dairy farms, the wastewater quality is COD3000~4000mg / L, NH 4 -N550~650mg / L, pH7.8~8.0,

[0053] The treatment method of using the treatment system of Example 1 to carry out efficient degradation and denitrification of aquaculture wastewater,

[0054] Adjusting pool volume 30m 3 , The size is length×width×height=5.0×3.0×2.0m; the volume of the feeding tank is 30m 3 , The size is length×width×height=4.0×3.0×2.5m; the grit chamber adopts advection grit chamber with a volume of 7.2m 3 , Size is length×width×height=6.0×1.0×1.2m; anaerobic reactor adopts IC reactor, volume 100m 3 , Size is diameter×height=φ3.6×9.8m; pre-oxidation-denitrification integrated tank volume 6m 3 , The size is diameter×height=φ1.5×1.0m, the inner ring diameter is 1.06m, the inner ring tank is equipped with a paddle mixer, the mixer power is 0.75kW; the anaerobic ammonia oxidation reactor adopts an upflow anaerobic filter with a volume of 30m 3 , The size is diameter×heigh...

Embodiment 3

[0064] Treating 100t / d of dry cleaning pig farm wastewater, the quality of the breeding wastewater is COD2000~3000mg / L, NH 4 -N600~700mg / L, pH7.2~7.8

[0065] The treatment method of using the treatment system of Example 1 to carry out efficient degradation and denitrification of aquaculture wastewater,

[0066] Adjusting pool volume 100m 3 , The size is length×width×height=5.0×5.0×4.0m; the volume of the feeding tank is 60m 3 , The size is length×width×height=5.0×4.0×3.0m; the grit chamber adopts advection 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 tank volume 21m 3 , The size is diameter×height=φ4.2×1.5m, the inner ring diameter is 3.0m, the inner ring tank is equipped with a paddle mixer, the mixer power is 1.5kW; the anaerobic ammonia oxidation reactor adopts an upflow anaerobic filter ...

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Abstract

The invention relates to a culture wastewater efficient degrading and denitrifying treatment system and a treatment method thereof. The system comprises, sequentially connected, an equalizing basin, a sand precipitation basin, a feeding basin, an anaerobic reactor, a preoxidation-nitrosation integration basin, an anaerobic ammoxidation reactor and an outlet water return basin, the anaerobic reactor is an anaerobic internal circulation reactor, wastewater flows through an external circular basin cavity and then enters an internal circular basin cavity, the anaerobic ammoxidation reactor is an upflow anaerobic packed tower, culture wastewater goes through above structures to sequentially undergo purifying reactions comprising hydrolysis, sand removal, anaerobic treatment, nitrosation and anaerobic ammoxidation, and harmful pollutants can be efficiently removed through multi-grade degrading treatment. The method combines an anaerobic process with an anaerobic ammoxidation process, and allows COD to be removed through the anaerobic process and nitrogen to be removed through the anaerobic ammoxidation process, so efficient removal of high-concentration pollution components in the culture wastewater is realized, and the method is simple to operate and stably runs.

Description

Technical field [0001] The invention relates to an efficient degradation and denitrification treatment system and a 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 scale of breeding and the rapid increase in the number of breeding, a large amount of livestock and poultry manure sewage has become a source of pollution. If the pollution generated by these farms is not treated in time, it will definitely cause great harm to the environment. The ecological environment has deteriorated, the quality of livestock and poultry products has deteriorated, and human health has been endangered. The lag of pollution control technology in the aquaculture industry has seriously restricted the sustainable development of the aquaculture industry. [0003] Farming wastewater has the characteristics of high COD and high ammonia nitrogen. Taking the washing wastewater w...

Claims

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Application Information

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Patent Type & Authority Applications(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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