Treatment method of heavy metal polluted helical alga

Abstract

A method for using heavy metal mild pollution spirulina to extract phycocyanin, and using its algal residue as principal substrate to adsorb and remove lead, arsenic and cadmium in the water, pertains to the field of environmental biotechnology. The method can be widely used in innocent treatment of mild heavy metal pollution spirulina without accessing market standards in industrial production. The inventive method has main features the method adopts the features of mild heavy metal pollution that it only stick on cell walls, uses a improved purification method to obtain spirulina further processed product phycocyanin that conforms to safety criterion and has higher economic value, wherein, the accompanying diagram is a mass spectrogram of the extracted phycocyanin; and fixs the algal residues, for preparing biological adsorbent for obtaining lead, arsenic, cadmium and other heavy metals.

Description

technical field [0001] The invention belongs to the field of environmental biotechnology, and specifically relates to a method for extracting phycocyanin from spirulina polluted by heavy metals lead, cadmium and arsenic, and using the algae residue as a main matrix to absorb and remove lead, cadmium and arsenic in polluted water. Background technique [0002] At present, apart from Xinjiang and Tibet, almost all other provinces in my country have manufacturers of spirulina health food. Wang Jue, an expert from the Health Products Market Working Committee of the China Health Care Association, said, "The relatively small enterprises have the problem of excessive heavy metal content. Such health food not only Spirulina cannot achieve the health benefits it should have, and it may also endanger the health of consumers." Some scholars also wrote that "heavy metal pollution is also not to be ignored. If the water contains mercury, lead and other toxic elements, it is easy to be cont...

AI Technical Summary

Problems solved by technology

In 2008, Kunming City conducted a random inspection of 23 kinds of spirulina on the market, showing that the main quality problem was the excessive lead and cadmium of heavy metals that would damage and endanger the health and safety of consumers.

At present, it is difficult for most small and medium spirulina production enterprises to meet strict spirulina production quality standards. Under the huge driving force of material interests, it is very difficult for merchants to keep this kind of spirulina polluted by heavy metals from entering the market. , even if it is not produced into health care products, it will definitely flow into the market through various channels and become animal feed in disguise, which will indirectly endanger human health in the next level of the biological chain

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