Ecological aquaculture system integrating pond aquaculture and tail water treatment and its operation and maintenance method

Abstract

The invention relates to an ecological aquaculture system integrating pond aquaculture and tail water treatment and an operation and maintenance method thereof, including an aquaculture pond area, a water inlet channel and an aquaculture tail water treatment area. The aquaculture pond area includes independent aquaculture ponds; the water inlet channel is connected with the water inlet of the aquaculture pond and the aquaculture tail water treatment area; the aquaculture tail water treatment area includes wetlands, first-level connecting dams, and first-level purification ponds arranged in sequence along the tail water flow. , secondary connecting dam and secondary purification pond. During the breeding period, based on feeding eel powdered feed, the daily feeding amount is 165 kg and the cumulative feeding amount is 22 tons as the maximum load, the drainage interval period is 10 to 20 days, and the maximum drainage load is 180 cubic meters per hour; The hydraulic retention time of the wetland is 2.5 to 4 hours, the hydraulic retention time of the primary purification pond is 0.9 to 1.4 days, and the hydraulic retention time of the secondary purification pond is 0.7 to 1.0 days. Animals and plants in the tail water treatment area are stocked and planted at staggered peaks. The aquatic plants in the treatment area are cleaned up in December of that year, and the aquatic animals in the pond are cleaned and purified in January of the following 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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