Aquaculture wastewater treatment method

Abstract

The invention discloses an aquaculture wastewater treatment method which comprises bio-filter filtration and water quality purification. The treatment method comprises the following steps: enabling aquaculture wastewater to pass through a bio-filter filled with a specific filter material; extracting flocculating agents from moringa oleifera seeds, and extracting microbial floc from microbial fermentation products; compounding with microbes, enzymes, fillers and the like to form a water purification agent, thereby purifying the aquaculture wastewater by using the purification agent. The aquaculture wastewater treatment method disclosed by the invention has the beneficial effects that the filter material in the bio-filter is easy to manufacture, raw materials are waste materials in industrial and agricultural production, complete-effect application of the materials is realized, the environment is protected, COD and NH4<+>-N can be effectively removed, and substantial organic matters and other impurities can be adsorbed; the composite water purification agent can achieve the effects of effectively degrading nitrogen, phosphorus, cellulose and other pollutants in a water body, effectively inhibiting algae growth, degrading the organic matters, reducing eutrophication of the water body and reducing the water turbidity and has an excellent flocculent settling effect on suspended solids in the water body.

Description

technical field [0001] The invention relates to the field of purification of aquaculture wastewater, in particular to a treatment method for aquaculture wastewater. technical background [0002] In recent years, the aquaculture industry has developed rapidly, from traditional open-type farming methods to semi-intensive, even intensive, facility-based, and intensive farming methods. The progress of aquaculture methods is a "double-edged sword". On the one hand, the production of aquatic products can be greatly increased, on the other hand, the damage to the environment of the aquaculture water body is increasingly aggravated, that is, high-density aquaculture and a large amount of artificial bait are used to rapidly deteriorate the quality of the aquaculture water body, which seriously affects the production, quality and breeding benefits of aquatic products. . Most of the current aquaculture is intensive farming, and the breeding density is high. A large amount of urine and...

AI Technical Summary

Problems solved by technology

The existing aquaculture water purifiers are mainly based on inorganic salts. This method can solve some problems in a short period of time, but it cannot fundamentally solve the problem of excessive nitrite nitrogen and ammonia nitrogen in aquaculture water. Therefore, it is necessary to Development of an efficient and thorough method for treating aquaculture wastewater

[0004] There are many methods about the treatment technology of aquaculture wastewater. The prior art, such as the Chinese invention patent with the authorized public number CN101935105 B, discloses a microbial water purifier for aquaculture water and a preparation method thereof. The microbial water purifier of the inventive method The use of activated montmorillonite as the immobilization carrier and Bacillus coagulans as the immobilization object has the advantages of simple production and low cost, but the microbial water purifier cannot efficiently degrade organic macromolecules in aquaculture wastewater, and cannot reduce The content of heavy metal ions in polluted water is not efficient enough for the adsorption and deposition of refractory substances in water, so the promotion value is not great