Biomaterial with effects of dissolving algae, degrading algal toxin and removing nitrogen and phosphorus and preparation method and application thereof

Abstract

The invention discloses a biomaterial with the effects of dissolving algae, degrading algal toxin and removing nitrogen and phosphorus, and a preparation method of the biological material. An activated carbon fiber-Acinetobacter sp. composite material is taken as a core, and the surface of the activated carbon fiber-Acinetobacter sp. composite material is coated with a chitosan-calcium alginate polymer by self-assembly; the activated carbon fiber-acinetobacter composite material is a composite material obtained by taking activated carbon fiber as an immobilized carrier to load Acinetobacter sp.; the chitosan-calcium alginate polymer is porous polymer sol formed by bonding and cross-linking chitosan and calcium alginate. The biomaterial can dissolve algae cells, degrade algal toxin, and remove nitrogen and phosphorus at the same time, furthermore has the advantages of high degradation efficiency, environmental friendliness, strong environmental tolerance, good stability, reusability, good storage, and the like, and can effectively solve the problems of cyanobacteria bloom and algal toxin pollution caused by water eutrophication.

Description

technical field [0001] The invention relates to the fields of wastewater treatment, cyanobacteria bloom, and algal toxin pollution control, in particular to a biological material capable of dissolving algae, degrading algae toxin, and removing nitrogen and phosphorus, and a preparation method and application thereof. Background technique [0002] Improper discharge of domestic sewage, industrial and agricultural wastewater, and pollution of aquaculture, excessive nitrogen and phosphorus content in water bodies, and aggravated eutrophication have led to continuous occurrence of cyanobacteria algae blooms and red tides. Microcystins are a class of monocyclic heptapeptide hepatotoxins produced by cyanobacteria, which are extremely harmful to different organs such as the liver, intestines, brain, kidneys, lungs and hearts of humans and animals. The pollution of microcystins It poses a huge threat to natural ecosystems and public health. Algae toxins have a ring structure and st...

AI Technical Summary

Problems solved by technology

However, the above-mentioned bacteria have the following defects when dealing with algae pollution: (1) the bacteria only have the function of single algalysis or degradation of algae toxins or nitrogen and phosphorus removal; The algal toxins in the cells can effectively inhibit algae outbreaks but cause more serious algal toxin pollution, so the problem of cyanobacteria and algal toxin pollution cannot be solved simultaneously; (3) Free strains have low degradation efficiency in natural water bodies and are resistant to water flow The problems of low impact force, easy loss, low relative concentration of strains, protozoan erosion, susceptibility to environmental factors, and difficulty in realizing reuse have greatly restricted the practical application of strains.

Due to its adsorption characteristics, ACF can be used in waste gas and sewage treatment processes, but the limited adsorption volume and long-term use lead to desorption and other problems, which limit the application of ACF in the field of environmental protection

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