An ecological type seawater rare fish factory circulating aquaculture system

Abstract

The invention discloses an ecological seawater rare fish factorization circulating water aquaculture system which comprises an aquaculture pond, a primary filter tower, an albumen segregator, a primary biological filter tower, a secondary biological filter tower, a tertiary biological filter tower, an algae treating pond, a source water filter pond, a UV (Ultraviolet) sterilizer, a temperature adjusting pond, an arc-shaped sieve, a primary sedimentation pond and a secondary sedimentation pond. A bidirectional drainage system is adopted by the aquaculture pond, the water containing less smaller particles at the lower part of the pond and the water containing more larger particles at the bottom of the pond are respectively drained and then input into different processing units for recycle. Molluscs, sea cucumbers and algae are drawn into aquaculture waste, wastewater disposal and resource utilization by the circulating water aquaculture system, so that the circulating water aquaculture system has an obvious ecological characteristic. The ecological seawater rare fish factorization circulating water aquaculture system has the advantages of high treatment efficiency of aquaculture wastewater and rubbish, simpler equipment, low energy consumption, high backwash efficiency, resource utilization of aquaculture wastewater and rubbish, less circulation supplement water, high treatment efficiency of inorganic nutrient salt in the water and high economic additional value.

Description

Technical field: [0001] The invention relates to the field of aquaculture engineering, in particular to an ecological type seawater rare fish industrialized circulating aquaculture system. Background technique: [0002] At present, in my country, the pollution of coastal waters and seawater eutrophication caused by mariculture are becoming more and more serious. The deteriorating water quality in turn causes the resistance of farmed animals to decrease and the disease to occur frequently. In order to deal with diseases, drugs are widely used and abused in aquaculture, and the resulting quality problems of aquatic products are becoming increasingly prominent. The deterioration of the water quality environment and the increase of climate instability factors (such as sudden temperature changes, typhoons, droughts, etc.) in recent years have brought great risks to the traditional marine aquaculture model. At the same time, due to the population expansion in coastal areas, land ...

AI Technical Summary

Problems solved by technology

Although my country has begun the research on industrialized recirculating aquaculture equipment in the 1980s, and also has a complete set of equipment production, it has not been able to be promoted on a large scale. The main reasons are: (1) the equipment is complicated and the cost is high; (2) ) Due to the complexity of the equipment and design defects, it is difficult to maintain; (3) Due to the use of more equipment and design defects, the power cost of the system operation is too high

Another obvious shortcoming of the existing industrialized recirculating aquaculture system is that although the system ensures good water quality and greatly reduces water consumption through the treatment of equipment, the waste and wastewater produced by aquaculture are still highly concentrated. emissions in the form of emissions without substantially mitigating the harm to the environment

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