Algal bloom inhibitor, and preparation method and application thereof

Abstract

The invention discloses an algal bloom inhibitor, and a preparation method and application thereof. The preparation method comprises the following steps: successively subjecting shell powder to acid leaching for modification, ultrasonic treatment, alkali leaching and soaking in waste liquid of beer fermentation; and then performing drying and crushing into powder to obtain the algal bloom inhibitor. The algal bloom inhibitor is added into algal water, and then algal flocs are removed from a water body through filtration or salvage. The algal bloom inhibitor provided by the invention can effectively adsorb flocculated algae, thereby facilitating the removal of the algae flocs out of the water body by filtering or salvaging; and the algal bloom inhibitor has better suppression effect on algal growth, can realize both temporary and permanent treatment of algal blooms, effectively prevent algal blooms, relieves harm caused by the outbreak of algal blooms from the source, is low in cost andhas great application value.

Description

technical field [0001] The invention belongs to the field of ecological restoration of water body environment, and in particular relates to an algal bloom inhibitor and its preparation method and application. Background technique [0002] In recent decades, the outbreak of algal blooms in freshwater bodies has become one of the major water environmental problems in my country and even in the world. The outbreak of algae bloom not only seriously affects the normal operation of downstream waterworks, but also the resulting algae toxins will pose a threat to the ecosystem and human health. Therefore, research on the causes, outbreak mechanism and control methods of algae blooms has always been a hot spot in environmental science and ecology research at home and abroad. [0003] Harmful algal blooms are an abnormal ecological phenomenon in which aquatic algae produce algal toxins or increase biomass, affect the growth of other organisms and the normal food chain structure, and ...

AI Technical Summary

Problems solved by technology

The physical method mainly removes algae directly by salvage, isolation, cracking and other means, basically does not produce secondary pollution, and the operation is simple, but the cost is high, and it is only suitable for small-scale emergency treatment

The biological method mainly kills harmful algal blooms through the parasitism of microorganisms and the feeding of aquatic organisms. This method also does not produce secondary pollution, but it is difficult to implement, the cost is high, and it may cause the problem of alien species invasion. In addition, organisms that ingest toxic algae can also accumulate toxins in their bodies.

The chemical method is mainly to add chemical reagents to the water body to inhibit the growth of harmful algal blooms or directly kill harmful algal blooms. Some chemical reagents also have the effect of flocculating algae and settling. It is easy to cause secondary pollution, some chemical reagents will also pose a threat to the growth and survival of other aquatic organisms, and killing toxic algae will cause algae to rupture and release toxins into the water body

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