CAJ | 학술논문

传统锌冶炼过程产生大量含重金属的废水、废渣，造成资源浪费和环境污染。针对锌冶炼污染物减排与治理的技术瓶颈，进行了系统的基础研究与技术攻关，提出并研发了选冶联合清洁炼锌技术，实现锌冶炼源头铁锌高效分离与铁渣的大幅减排；发明了锌冶炼重金属废水生物制剂法深度净化与回用技术，废水深度净化后出水重金属离子浓度完全达到国家《铅锌工业污染物排放标准》（GB25466-2010），废水的回用率提高到95%；研发了冶炼废渣硫化回收人造硫化矿新工艺，其中重金属锌的硫化率达85%以上，硫化矿的品位达40%。研究成果可为锌冶炼污染物源头减排与“三废”深度治理提供先进适用的技术方法。
전통자야련과정산생대량함중금속적폐수、폐사，조성자원낭비화배경오염。침대자야련오염물감배여치리적기술병경，진행료계통적기출연구여기술공관，제출병연발료선야연합청길련자기술，실현자야련원두철자고효분리여철사적대폭감배；발명료자야련중금속폐수생물제제법심도정화여회용기술，폐수심도정화후출수중금속리자농도완전체도국가《연자공업오염물배방표준》（GB25466-2010），폐수적회용솔제고도95%；연발료야련폐사류화회수인조류화광신공예，기중중금속자적류화솔체85%이상，류화광적품위체40%。연구성과가위자야련오염물원두감배여“삼폐”심도치리제공선진괄용적기술방법。
Large amount of wastewater and waste residue containing heavy metals were produced during the traditional zinc smelting process, which leads to the waste of resources and environment pollution. Aiming at the technical bottleneck of reduction and treatment for the pollutants discharged from zinc smelting , systematic researches of fundamental theory and applied technology were investigated. The combined dressing-metallurgy technology of zinc production for emission reduction was developed to realize the efficient separation of iron and zinc and substantial reduction of iron residue from the source of zinc smelting. In addition, new technology for further purification and reuse of Zinc smelting waste water by biological agents was invented to ensure that the concentration of heavy metals in purified water can reach the Emission standard of pollutants for lead and zinc industry (GB25466-2010). The recycling rate of wastewater increased to 95 %. Moreover, novel technology of sulfidation treatment of heavy-metal-containing sludge for synthetic metal sulfide recovery was explored. The results indicated that more than 85 % of zinc in the sludge was transferred to the metal sulfides and the grade of sulfide ore was 40 %. The research results obtained in this study can provide advanced and suitable technical support for the source reduction of pollutants and the comprehensive management of waste from zinc smelting industry.