Pond biological floating island and application method thereof

Abstract

The invention discloses a pond biological floating island which comprises a floating island outer frame, a water supply pipe, a water inlet channel, a water drainage pipe, a water drainage channel, bait casting platforms and biological floating island devices; the water inlet channel and the drainage channel are symmetrically arranged on two sides in the floating island outer frame; the biological floating island devices are distributed between the water inlet channel and the drainage channel; two ends of the water supply pipe are connected with the water inlet channel and the biological floating island devices respectively, and two ends of the drainage pipe are connected with the drainage channel and the biological floating island devices respectively; and the bait casting platforms are distributed on the biological floating island devices. According to the biological floating island for the aquaculture pond, when feeds, fertilizers, probiotics, supplementary water and other input products are continuously added to the pond, the content of COD, nitrogen, phosphorus and other nutrient substances of eutrophic water can be effectively controlled and reduced, the ecological-friendly water purification treatment process of the eutrophic water is realized, and the pond feeding requirement is met. The biological floating island is good in water treatment effect, small in investment and easy to popularize, and has good economic benefits, ecological benefits and social benefits.

Description

technical field [0001] The invention relates to the technical field of freshwater aquaculture, in particular to a pond biological floating island and an application method thereof. Background technique [0002] Biological floating islands After the roots of aquatic plants on the floating bed absorb nitrogen, phosphorus and other substances in the water body, they become the components of plants through lignification, and convert them into carbon dioxide, water or non-toxic substances through volatilization, metabolism or mineralization. The developed root system releases a large amount of secretions that can degrade organic matter, which accelerates the degradation of organic matter in the water body; aquatic plants can transport oxygen to the root zone, and the reduced state medium in the root zone of aquatic plants becomes an oxidized state. The environmental conditions in the area provide a good niche for aerobic, facultative anaerobic, and anaerobic microorganisms. The s...

AI Technical Summary

Problems solved by technology

At the beginning of this century, biological floating islands began to be introduced to restore and restore the water environment of pond culture. However, regarding the planting and maintenance of ecological floating island plants in pond culture, a standardized fish farming technology system has not yet been formed. As a result, many ecological floating islands Not only did it fail to purify the aquaculture water, but it brought secondary pollution, which seriously hindered the promotion and application of ecological floating island technology in aquaculture ponds

[0003] At present, the main problems are: usually the pond biological floating island frame is made of bamboo poles, wooden poles, or PVC plastic pipes, foam plastic boards, either the service life is short, or the cost is too high; when the pond adopts the fish farming mode , due to the continuous input of feed, fertilization, probiotics and supplementary water, phytoplankton and weeds grow excessively, and a small amount of filter-feeding fish such as silver carp and bighead carp and herbivorous fish such as grass and bream are often raised in sets. Normal growth constitutes damage; due to climatic reasons such as strong winds and heavy rains, the aquatic plants in the pond fish farming biological floating islands are poorly fixed, and sometimes the aquatic plants fall down and scatter in the pond, resulting in covering the water surface, competing for the breeding water body, and even secondary pollution; biological The structure of the floating island is unreasonable, which causes difficulties in the daily management and operation of planting, transplanting, harvesting and harvesting of aquatic plants.

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