Method for adsorbing and removing phycobiliprotein and phycotoxin

Abstract

The invention discloses a method for adsorbing and removing phycobiliprotein and phycotoxin by utilizing high polymer complex modified fly ash, which comprises the following steps of: stirring and uniformly mixing fly ash, magnetite powder and concentrated hydrochloric acid according to a certain proportion, drying, pulverizing into powder, and mixing the powder with poly dimethyl diallyl ammonium chloride according to the mass part ratio of 1:1-2 to obtain a water processing agent; preparing a suspension from the water processing agent and water; and adding the suspension into waste water containing the phycotoxin and the phycobiliprotein according to the addition ratio of 100-250mg/L, stirring, settling, and then removing and collecting magnetic floccules in the waste water from a water body by utilizing an external magnetic field. The invention not only can effectively adsorb the flocculated phycotoxin and the phycobiliprotein, but also can rapidly remove algae from the water body through the action of the external magnetic field simultaneously and can be used as an emergency measure for reducing the harm brought by the phycotoxin and the phycobiliprotein.

Description

technical field [0001] The invention relates to the field of biological environmental protection materials, in particular to a method for adsorbing and removing phycobiliproteins and algae toxins. Background technique [0002] With the acceleration of urban industrialization and increasing environmental pollution, harmful cyanobacterial blooms caused by eutrophication have become an environmental problem of widespread concern at home and abroad. Among them, Microcystis blooms are the most common, and most of them produce toxins, which are the most harmful to freshwater bodies. Microcystins are a class of biologically active monocyclic heptapeptides, mainly produced by the freshwater algae Aeruginosa microcystis, but also produced by many other species of cyanobacteria, such as Oscillatoria, Anabaena, Nostoc, and Green Microcystis. Cystis, Microcystis whitworthii, etc. Microcystins are hepatotoxins that inhibit protein phosphatases, thereby helping to release the normal bra...

AI Technical Summary

Problems solved by technology

This method can remove the two kinds of pollutants to a certain extent, but the pollutants can easily lead to clogging of the filter layer, which has become a bottleneck problem in the large-scale application of this method.

The chemical method mainly converts algal toxins into other non-toxic substances through chemical reactions (redox, etc.). This method is simple and easy, but there are two problems: one is high cost, and the other is easy to cause secondary pollution

The biological method refers to the degradation or absorption of the two pollutants by microorganisms or plants. Compared with the first two methods, this method has the advantage of low cost, but it also has two disadvantages. One is that it often takes a long period and is not suitable for emergency Second, the disposal of plants enriched with the two pollutants has become a new technical problem