Ecological energy-saving level dual-cycle water treatment system for industrialized fish culture

Abstract

The invention belongs to protective fishery field, which in detail relates to two-cycle water treating system for industrialized fish culturing, with main characteristics being: internal recycle pool structure of various shape taking square outside and round inside as representation, cultivating fish in circular pool, the quadrangle outside pool is biological filter; water and pollution discharging pipe are equipped in bottom of pool; the mating outside circular system comprises drainage ditch, out biological filter and artificial wet land, feed ditch, pollution collecting tank; special air raising pump of U shape, high effective aeration, water raising cycle; the artificial wet land and out biological filter are combined together, depositing, filtering, adsorption, bacteria degradation, adsorption by aquatic plant and animal and cleaning water body high effectively; constructing open water inlet and outlet pitch which also used as biological filter by using fish pond to realize omni-bearing restore of cultivating wastewater. The invention is characterized by less equipment investment, low energy consumption, safe and reliable operation, convenient management and maintenance, outstanding ecological, economical and social benefit, low production cost and increased quantity and quality.

Description

technical field [0001] The invention belongs to the field of facility fishery, and in particular relates to a circulating water treatment system for industrialized fish farming. Background technique [0002] Factory fish farming has grown to nearly 3 million m in my country 2 , the main breeding objects are sea and freshwater high-quality aquatic products, and they are concentrated in several major cities along the coast. Low technical level and low yield per unit area (15-30kg / m 3 ), the equipment investment is large, the operation cost is high, the operation and management are cumbersome, and the circulating water adopts external circulation. Pure oxygen dosing devices, ultraviolet ozone sterilizers, etc. are expensive, consume a lot of energy, and have great potential safety hazards. Usually, the number of daily water cycles is small, the utilization rate is low, and the aquaculture wastewater is discharged, causing pollution, and the effect is not satisfactory. Conte...

AI Technical Summary

Problems solved by technology

Low technical level and low yield per unit area (15-30kg / m 3 ), the equipment investment is large, the operation cost is high, the operation and management are cumbersome, and the circulating water adopts external circulation. Pure oxygen dosing devices, ultraviolet ozone sterilizers, etc. are expensive, consume a lot of energy, and have great safety hazards. Usually, the number of daily water cycles is small, the utilization rate is low, and the aquaculture wastewater is discharged, causing pollution, and the effect is not satisfactory.

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