Ecological culture system integrating pond culture and tail water treatment, and operation and maintenance method thereof

Abstract

The invention relates to an ecological culture system integrating pond culture and tail water treatment, and an operation and maintenance method thereof. The ecological culture system comprises a culture pond area, a water inlet channel and a culture tail water treatment area; the culture pond area comprises independent culture ponds; the water inlet channel is communicated with the water inlets of the culture ponds and the culture tail water treatment area; and the culture tail water treatment area comprises a wetland, a first-level connection dam, a first-level purification pond, a second-level connection dam and a second-level purification pond, which are sequentially arranged along the flowing direction of tail water. During the culture period, in terms of feeding an eel powder feed, the maximum load is that the daily feeding level is 165 kg and the cumulative feeding level is 22 T; the drainage interval period is 10-20 days; the maximum drainage load is 180 cubic meters per hour;during the system operation period, the hydraulic retention time of the wetland is 2.5-4 h; the hydraulic retention time of the first-level purification pond is 0.9-1.4 days; the hydraulic retention time of the second-level purification pond is 0.7-1.0 day; in the culture tail water treatment area, animals and plants are bred and planted in off-peak times; aquatic plants in the treatment area arecleaned in December of the year; and aquatic animals in the purification pond are cleaned in the January of the next year.

Description

technical field [0001] The invention belongs to the technical field of aquaculture wastewater treatment, and relates to the treatment of aquaculture tail water, in particular to an ecological aquaculture system integrating pond culture and tail water treatment. Background technique [0002] my country is a big aquaculture country. A large number of ponds have been intensively cultured, and tens of millions of tons of feed and fertilizer have been invested, resulting in the discharge of nearly 300 million cubic meters of aquaculture tail water every year. The water environment pollution and beautiful water ecology caused by the aquaculture tail water The contradiction between environmental requirements has become increasingly prominent. Therefore, it is necessary and urgent to carry out research on related technologies for pond aquaculture tail water treatment and standard discharge. [0003] The current aquaculture tail water treatment technology is mainly based on physical,...

AI Technical Summary

Problems solved by technology

Although various technical methods and means have good effects on the treatment of aquaculture tail water, there are generally problems such as high technical threshold for operation and maintenance, high operating costs, and difficulty in popularization. The main crux is that when aquaculture practitioners are involved in purification system equipment Uncontrollable risk of operation and maintenance cost of aquaculture tail water treatment solutions when non-aquaculture technology professional fields such as modernization and application of material technology

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