关键词: 吸附, 低温水体, 磺胺类抗生素, 材料

Abstract:

In view of the water environment pollution caused by the use of the antibiotics in livestock and poultry breeding, we studied the removal effects and influencing factors of natural mineral materials (volcanic cinder) and resources transformation materials (bone black and fungus chaff) to the adsorption of four kinds of sulfa antibiotics: sulfathiazole(ST), sulfamethyldiazine (SM), sulfamethazine (SM2) and sulfamethoxazole (SMX). The results show that the
 adsorption effect of three kinds of materials is in the order of fungus chaff>volcanic cinder>bone black. When the mass concentration of four kinds of antibiot
ics is 5 mg/L in the water, the adsorption rate of fungus chaff is more than 80%, and the adsorption capacity is 1.60 mg/g. The adsorption rates of volcanic cinder and bone black which modified by the mass fraction of 10% Al₂(SO₄)₃ are more than 60%, and the adsorption capacity is more than 0.24 mg/g. The best adsorption pH value is 4—6, Fe³⁺,Mn²⁺,NH₄⁺,Cl^-,solidity and alkalinity have a great influence on the adsorption of sulfa antibiotics by fungus chaff.

Key words: adsorption, low temperature water, sulfonamides antibiotics, material