Heavy metal adsorbent prepared from grape wine residues and preparation method of heavy metal adsorbent

Abstract

The invention discloses a heavy metal adsorbent prepared from grape wine residues. The heavy metal adsorbent is prepared from the following raw materials in parts by weight: 20-30 parts of grape wine residues, 5-10 parts of rice husk, 1-2 parts of boric acid, 0.1-0.2 part of lauric acid, 3-5 parts of hydroxyethyl cellulose, 0.1-0.2 part of polyaspartic acid, 1-2 parts of ethylenediaminetetraacetic acid disodium salt, 3-5 parts of sodium chloride, 1-2 parts of sodium lignosulfonate, 4-6 parts of additives and 40-50 parts of water. The heavy metal adsorbent is prepared from waste grape wine residues as a main raw material, has the characteristics that heavy metals can be combined, the adsorption property is high and the adsorption capacity is large, is safe and environmentally friendly, free of toxicity or harm, free of secondary pollution to the environment in the wastewater treatment process, can save the energy and reduce emission, and is economical and practical.

Description

technical field [0001] The invention relates to the field of environmental treatment, in particular to a heavy metal adsorbent prepared from wine dregs and a preparation method thereof. Background technique [0002] With the development of the global economy and society, environmental pollution is becoming more and more serious. Industrial wastewater, as the main source of environmental pollution, has been a major problem that has plagued countries all over the world for a long time. Heavy metal ions in industrial wastewater have strong carcinogenic, teratogenic, and mutagenic effects, which pose a serious threat to human health and the ecological environment. Therefore, it is very important to strictly control the pollution of heavy metal wastewater. [0003] Traditional heavy metal wastewater treatment methods mainly include chemical precipitation, ion exchange, membrane separation, etc. These methods usually have problems such as large investment, high energy consumption,...

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Problems solved by technology

[0003] Traditional heavy metal wastewater treatment methods mainly include chemical precipitation method, ion exchange method, membrane separation method, etc. These methods usually have problems such as large investment, high energy consumption, high operating cost, and easy to produce secondary pollution, so their application is limited