Aquaculture water-break bypass treatment and ecological repairing circulation treatment method

An aquaculture and ecological restoration technology, which is applied in water/sewage treatment, biological water/sewage treatment, water/sewage multi-stage treatment, etc. It can solve the problems of limited breeding area and idle equipment for farmers, and improve the efficiency of sewage treatment. , The effect of improving the water environment and improving the transparency of the water body

Pending Publication Date: 2019-07-19
TIANJIN ACADEMY OF ENVIRONMENTAL SCI
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the integrated equipment is specially used for the treatment of aquaculture return water, the effect is good, but the aquaculture return water is only drained for 4 months in a year, and the equipment is idle for the remaining 8 months, and a large amount of manpower and material resources are required to be reinvested in e

Method used

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  • Aquaculture water-break bypass treatment and ecological repairing circulation treatment method
  • Aquaculture water-break bypass treatment and ecological repairing circulation treatment method
  • Aquaculture water-break bypass treatment and ecological repairing circulation treatment method

Examples

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Effect test

Embodiment 1

[0046] An aquaculture backwater bypass treatment and ecological restoration cycle treatment system is characterized in that it includes sequentially connected aquaculture ponds, aeration regulating ponds, flocculation and sedimentation ponds, multi-stage surface flow wetlands, and subsurface flow wetlands;

[0047] Among them, the receding water of the aquaculture pond 1 enters the aeration regulating pond 3, the flocculation and sedimentation pond 6, the multi-level surface flow wetland 8 and the subsurface flow wetland 9 to complete the purification function through the drainage ditches 2 arranged around it, and the aquaculture retreat water intake route 13, The purified water circulates 14 within the system as a landscape water body; during the water diversion season of the aquaculture pond, water is diverted from the wetland to the aquaculture pond through the diversion channel 10 to realize resource utilization and reuse of aquaculture; when ecological water is scarce, As ...

Embodiment 2

[0054] A method for treating wastewater by using aquaculture water return bypass treatment and ecological restoration circulation treatment system:

[0055] (1) The receding water of multiple aquaculture ponds connected in sequence enters the aeration regulating pond of the ecological restoration circulation system through the drainage ditch set around the aquaculture pond, and the aeration in the regulating pond increases the oxygen of the water body, and the artificial floating island microbial powdery bacteria The microorganisms in the agent can slowly enter the water body. Fillers are installed under the artificial floating islands, which serve as the carrier of microorganisms in the water body. Through the joint action of aeration and microorganisms, the degradation of organic pollutants and the removal of nitrogen and phosphorus are promoted. Planting on artificial floating islands For plants, the wastewater residence time is set to 26h;

[0056] The powdery bacterial ag...

Embodiment 3

[0063] (1) There are many aquaculture ponds near a certain level of river in Tianjin, and the water from the aquaculture pond is drained every October, and the water from the aquaculture is directly discharged into the surrounding primary river, causing an increase in instantaneous COD and ammonia nitrogen and total phosphorus in the primary river. After passing the laboratory pretreatment measures, the wastewater quality can reach the standard. See the table below for specific water quality and up-to-standard discharge water quality. Through small-scale experiments, it can be seen that for relatively good water quality, using a pretreatment technology in aquaculture water return bypass treatment and ecological restoration circulation system can meet the standard for aquaculture return water treatment with better water quality. In the flocculation precipitation, the dosage of polyaluminum is 1mg / L (PAC concentration is 10%-20%), and the dosage of PAM is 1ml / L (PAM concentratio...

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Abstract

The invention discloses an aquaculture water-break bypass treatment and ecological repairing circulation treatment method. A system comprises an aeration oxidation pond, artificial floating islands, aflocculation precipitation pond, a multi-stage surface flow and subsurface wetland which are sequentially connected. By using a pretreatment technique of the aeration oxidation pond and the flocculation precipitation pond, pollutants and total phosphorus in wastewater can be efficiently removed; due to adoption of plants, benthonic animals and microorganisms in the multi-stage surface flow and subsurface wetland, the water environment and the water transparency can be remarkably improved, and a water body can be earth surface type-V water. A purified water body is circulated in the wetland toform a landscape water body. When water is taken from an aquaculture pond as seasonal water, the water is recycled into the aquaculture pond, then aquaculture recycling and reuse can be achieved, a circulation ecological breeding system in the pond can be formed, and the city water body environment can be improved; in case of ecological water shortage, the water can be used as a city sponge waterbody which is returned to rivers.

Description

technical field [0001] The invention belongs to the technical fields of aquaculture technology and wetland ecological restoration. The invention relates to a system and method for aquaculture return water bypass treatment and wetland ecological restoration cycle treatment. Background technique [0002] In recent years, intensive aquaculture has developed rapidly at home and abroad, especially in my country. Its aquaculture production has accounted for about 2 / 3 of the world's aquaculture production. The high-efficiency open farming adopts the method of large introduction and large row, which greatly consumes water resources. Due to the application of feed, the use of fungicides and disinfectants, the discharged water contains a large amount of granular and dissolved waste high in nitrogen and phosphorus, and antibiotic wastewater causes nitrogen and phosphorus in rivers, lakes and other waters to exceed the standard, which is likely to cause eutrophication of surrounding wat...

Claims

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Application Information

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IPC IPC(8): C02F9/14A01K63/04
CPCC02F9/00A01K63/04C02F7/00C02F1/5281C02F3/32C02F3/327C02F1/5236C02F1/56C02F3/34C02F3/302
Inventor 段云霞孙静周滨刘红磊乔楠张彦李慧邢美楠李艳英
Owner TIANJIN ACADEMY OF ENVIRONMENTAL SCI
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