A clamworm biofilter and method of use thereof

Abstract

A clam worm biofilter, which mainly comprises: a water inlet pipe is arranged on the top of the upper opening trough filter, and a drain pipe is arranged at the bottom of the pool, and the drain pipe passes through the bottom of the pool wall and is connected with the water pipe outside the filter tank by an elbow. The gravel layer, coarse sand layer, fine sand layer and soil layer are successively laid in the filter tank from bottom to top, wherein the diameter of the gravel is 1-3×1-2cm, the thickness is 8-12cm; the particle size of the fine sand is 0.5-1.0mm, The thickness is 13-17cm; the lower limit of the thickness of the soil layer is 10cm; the clamworms are stocked in the pool, and the density of clamworms is 600-2000 tails / square meter. Use industrialized fish and shrimp farming solid waste as the worm bait, put the bait into the filter twice a day in the morning and evening, the bait is 10-15% of the total weight of the worm in the filter; the method of changing the water in the filter : Every morning and evening, lower the mouth of the water pipe outside the pool, lower than the water level at the bottom of the pool, and when adding new seawater, inject 0.1-0.5 cubic meters of water per hour. The invention can not only be suitable for the growth of clamworms but also can make them concentrate on treating marine solid organic pollutants.

Description

technical field [0001] The invention relates to an aquaculture facility and a construction method thereof. Background technique [0002] Factory aquaculture is a new aquaculture method produced during the development of traditional aquaculture industry towards modernization, enterprise and scale. Industrialized aquaculture is similar to traditional aquaculture, and the pollutants produced in the production process are also the main source of pollution in coastal waters. The main pollutants in factory aquaculture include inorganic pollutants (N, P), dissolved organic pollutants and solid organic pollutants (residual bait and feces). For inorganic pollutants and dissolved organic pollutants, the development of current water treatment technology can carry out better artificial treatment. However, for solid organic pollutants, due to the characteristics of different particle sizes and difficulty in degradation, it is difficult to have a better treatment method at present. Acc...

AI Technical Summary

Problems solved by technology

Although clamworms can remove solid organic pollutants in the sea, clamworms still grow naturally and scattered at present, and the ever-changing external environment cannot meet the growth needs of clamworms, so that the ability of clamworms to remove marine organic pollutants cannot be fully exerted