Intensive cultivation tail water treatment system

Abstract

The invention discloses an intensive cultivation tail water treatment system. The system comprises ponds which are sequentially connected, wherein the ponds sequentially comprise an in-situ precipitation pond, a biological treatment pond, an aeration tank and cultivation ponds, the in-situ precipitation pond, the biological treatment pond, the aeration tank and the cultivation ponds are connected through connecting pipes, valves are arranged on the connecting pipes, uniformly distributed ropes or column piles are arranged in the biological treatment pond, uniformly distributed floaters are arranged on the surfaces of the ropes, and biofilms or activated mud is suspended on the surfaces of the floaters or the column piles. The system realizes repeated utilization of tail water and is green and environment-friendly, the treatment cost of tail water can be reduced through cultivated algae and shells, and the economic benefits are created.

Description

technical field [0001] The invention belongs to the technical field of aquaculture tail water treatment, and in particular relates to an intensive aquaculture tail water treatment system. Background technique [0002] Aquatic products and livestock and poultry products are staple foods that are very popular and necessary for the people of our country. The market has a very large amount. With the continuous improvement of breeding technology, the technology of high input and high output is becoming more and more mature. The pollution index is also getting higher and higher, and the impact on the environment is also increasing. Usually, the aquaculture sewage has its common characteristics: first, the pollutants are mainly organic matter, and the nitrogen and phosphorus indicators in the sewage are high; Concentration, thirdly, a large part of the water content in the aquaculture sewage is in the solid matter, and the removal of the solid matter in the sewage is the most funda...

AI Technical Summary

Problems solved by technology

[0002] Aquatic products and livestock and poultry products are staple foods that are very popular and necessary for the people of our country. The market has a very large amount. With the continuous improvement of breeding technology, the technology of high input and high output is becoming more and more mature. The pollution index is also getting higher and higher, and the impact on the environment is also increasing. Usually, the aquaculture sewage has its common characteristics: first, the pollutants are mainly organic matter, and the nitrogen and phosphorus indicators in the sewage are high; Concentration, thirdly, a large part of the water content in the aquaculture sewage is in the solid matter, and the removal of the solid matter in the sewage is the most fundamental. Most of the treatment of aquaculture tail water uses static sedimentation or three-stage static sedimentation method, the effect Not ideal, although the sedimentation tank is very large, it still cannot play its due role

[0003] Existing technologies such as Chinese Invention Authorized Patent Document, Authorized Notice No. CN 103896410 B, this invention discloses a biofilm-based aquaculture wastewater treatment system, including a plurality of buckets connected in series with brackets inside, the first bucket is set There is a water shower device, and the water in the bucket at the end flows back into the culture pond again; the biofilm is fixed on the support, and the cultivation method includes screening bagasse with a sieve and putting it in a mesh bag and placing it on the support; Immerse the attachment base in the pool water, add activated Bacillus sp. powder and add nutrient salts; add once after 10-15 days; the name of the strain used is Shan-1; it will mature after 25-30 days , the invention is simple, feasible, low in cost, and long in use, and has strong practical application value in the treatment of marine aquaculture wastewater. The biofilm used in the invention can survive for a long time on bagasse, and has a strong It has a strong treatment capacity, especially for ammonia nitrogen and nitrite nitrogen in aquaculture wastewater, but there is still room for improvement in terms of oxygen consumption in aquatic product water and biofilm enrichment of trace elements in water quality

Images