Method for rapid treatment of water bodies with cadmium and copper pollution by using algae waste residues

Abstract

The invention discloses a method for rapid treatment of water bodies with cadmium and copper pollution by using algae waste residues. The method comprises the following five steps: selection of algae waste residues, treatment of algae waste residues, application of catalyzing enzymes, treatment of water bodies with cadmium and copper pollution, and recovery and utilization of heavy metal elements. The method concretely comprises the following steps: industrial waste residues of Laminaria brown algae, Pseudomonas and blue-green algae and Cladophora are selected; the algae waste residues are chopped by a mechanical mode, and are fixed in sponge bags, sepiolite or silica gel nets; carboxyl transferase, sulfate transferase and transaminase are applied; ion exchanges are carried out between function groups on the surface of algae necron and heavy metal ions in the effects of transferase for rapid adsorption of heavy metal ions; algae necron which completes adsorption and is fixed in a porous container is taken out from a water surface, and extraction and reutilization of heavy metal elements are carried out. The method has the advantages of low cost, high efficiency, good effects, recovery and utilization of cadmium and copper elements without any extra pollution, and simple realization.

Description

technical field [0001] The invention relates to the field of heavy metal prevention and control, in particular to a method for rapidly treating cadmium and copper polluted water by utilizing algal plant waste residue. Background technique [0002] Cadmium is a non-essential element in the human body. It often exists in the form of compounds in nature, and its content is generally very low. Under normal environmental conditions, it will not affect human health. Cadmium and zinc are elements of the same family, and cadmium often coexists with zinc and lead in nature. When the environment is polluted by cadmium, cadmium can accumulate in the organism and enter the human body through the food chain, causing chronic poisoning. After cadmium is absorbed by the human body, cadmium-sulfur protein is formed in the body and selectively accumulated in the liver and kidney. Among them, the kidney can absorb nearly 1 / 3 of the cadmium in the body, which is the "target organ" of cadmium ...

AI Technical Summary

Problems solved by technology

[0004] Among the relevant patents that have been applied for in China, the patent "A Treatment Method for Cadmium-Polluted Water" (application number: 201310200543.3, publication date: 2013-08-14) discloses a method for treating cadmium by using nightshade or red cabbage leaves. The method of polluting the water body, but it can only slowly absorb the cadmium ions in the water through the root system in the natural survival activities of the plants, and it will be invalid after the death of the plant dwarf. It is difficult to adapt to the hypoxic environment, and it is necessary to replace it with newly cultivated black nightshade or leafy red cabbage in the greenhouse at regular intervals, which is costly and does not produce economic effects; the patent "A Method for Treating Heavy Metal Copper Pollution in Water "(Application No.: 201410155085.0, Publication Date: 2014-08-06) discloses a method of using chemically treated mesoporous silica as the main body of adsorption to absorb copper ions in water and remove water from the water, but it cannot In-situ repair is realized; and, due to the application of various chemical substances, on the one hand, the cost of treatment will be high, and on the other hand, the production process of chemical substances will also cause pollution; at the same time, the realization requires a large number of chemical equipment and relatively Large production site, difficult to realize