Low-discharge industrial prawn culture system

Abstract

The invention discloses a low-discharge industrial prawn culture system. The system comprises a culture pond, a micro-filter buffer pond, a micro-filter and a dissolved oxygen container and is characterized in that the culture pond is communicated with a water inlet pipe; the micro-filter buffer pond is provided with an overflow port, and the overflow port is communicated with a main discharge pipe through a water changing pipe; the micro-filter is mounted above the micro-filter buffer pond and communicated with the bottom of the culture pond through the main discharge pipe, and the water outlet of the micro-filter is communicated with the micro-filter buffer pond; the dissolved oxygen container is provided with a jet device at the top, the main pipeline of the jet device is communicated with a second water inlet pump to be communicated with the micro-filter buffer pond, and the bypass of the jet device is communicated with an oxygen inlet pipe so as to mix oxygen into water; the dissolved oxygen container is communicated with a position, close to the top, of the culture pond through a return water pipe. The low-discharge industrial prawn culture system has the advantages that a small water circulating system is adopted, the water requirements of the whole culture system are lowered on the basis that culture water quality is guaranteed, system operation cost and overall equipment investment during culture are lowered, and high-density culture can be achieved.

Description

technical field [0001] The invention relates to the field of culture technology, in particular to a low-emission industrialized shrimp culture system. Background technique [0002] China is the largest shrimp farming country in the world, with a farming area of ​​more than 4 million mu. The average annual shrimp consumption in China is 2 million tons. Around 2013, China changed from a shrimp exporter to a shrimp importer. It is estimated that the shrimp import will exceed 1 million tons in 2017, and the overall demand for shrimp is strong. [0003] There are currently several modes of shrimp farming: [0004] Earthen pond farming, the most traditional shrimp farming model, directly uses external seawater. During the breeding process, the water is not changed or is rarely changed. The breeding pond is equipped with water truck oxygenation equipment. The soil pond farming mode cannot be controlled during the breeding process, and it is completely dependent on the weather. Th...

AI Technical Summary

Problems solved by technology

Shrimp industrialized farming includes two forms of industrialized flowing water aquaculture and industrialized full-circulation aquaculture. Industrialized flowing water aquaculture ensures the clean water in the system, but consumes a lot of water resources and the aquaculture wastewater has not been treated; industrialized full-circulation Aquaculture, although the consumption of water resources is small, but a large number of various equipment are used in the aquaculture system, which consumes a lot of energy and costs, and is not easy to promote

At present, there are two main problems in this mode: First, the current so-called factory farming mode comes from the abalone and sea cucumber farming mode in northern my country. After years of development, it still has not completely broken away from the basic concept of cement pool + greenhouse

Second, full-cycle aquaculture has been proven in practice. The overall cost of a complete set of equipment is high, and the initial investment in equipment is huge; the energy consumption of equipment operation is huge, and the cost of breeding is more than double the cost of traditional farming; there is basically no water change during the entire growing cycle , there are many problems such as ion imbalance in the aquaculture water body, and various supplementary reagents need to be put in, but it is still difficult to achieve the effect of natural seawater, which affects the growth of prawns; practice shows that the current full-circulation aquaculture model has low economic indicators and does not have large-scale Possibility of popularization and application. The factory-like full-circulation aquaculture farms currently in operation mainly focus on demonstration breeding and leisure tourism.

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