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从云南宣威山基土中提取腐植酸。对腐植酸的提取、灰化度和官能团测定、吸附实验等作了阐述。结果表明,腐植酸对Cr6+ 离子有较高的吸附量;稀碱法制备腐植酸效果好、方法简便,能有效吸附废水中的重金属离子,是一种有发展前途的废水净化剂。
Extraction of humic acid from Xuanwei Mountain basement in Yunnan Province. The extraction of humic acid, degree of ashing and determination of functional groups, adsorption experiments were described. The results showed that humic acid had a higher adsorption capacity for Cr6 + ions. The preparation of humic acid by dilute alkaline method was effective and simple, and could adsorb heavy metal ions effectively. It is a promising wastewater purification agent.