Application of biological adsorbing agent
A biological adsorbent and application technology, applied in the direction of adsorption of water/sewage treatment, water pollutants, special compound water treatment, etc., can solve the problem that the filtrate is not fully utilized, and achieve waste reduction, good adsorption performance, and simple operation Effect
Inactive Publication Date: 2015-04-08
XIAMEN UNIV
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Abstract
The invention provides application of a biological adsorbing agent, and relates to application of the biological adsorbing agent in preparation of the biological adsorbing agent for heavy metals and dyeing waste water. A preparation method of the biological adsorbing agent comprises the steps of washing a biomass raw material, drying, crushing and screening to obtain biomass powder; mixing, impregnating, heating and stirring citric acid solution and the biomass powder to obtain a solid-liquid mixture; carrying out suction filtration on the solid-liquid mixture and collecting filtrate; mixing the filtrate with chitosan, heating, stirring, adjusting the pH value to be 8-10, dissolving out solids, stirring continuously, cooling, performing suction filtration, and washing to be neutral to obtain neutral filter residues; and drying and crushing the neutral filter residues to obtain the biological adsorbing agent. The biological adsorbing agent can be applied to preparation of the biological adsorbing agent of heavy metals and dyeing waste water, the operation is simple, the application range is wide, acid treatment waste liquid of multiple forestry and agricultural residue biomasses can be prepared into the effective and cheap adsorbing agent for heavy metals and dyeing waste water by the method.
Application Domain
Other chemical processesWater treatment compounds +3
Technology Topic
ChemistryAgricultural residue +9
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