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黄金冶炼废水深度软化工艺优化与工业化应用
- 作者：
邵京明|孙仁锋|郭建东|薛希刚|汪少杰|许金玲|梁志伟
- 作者单位：
- （山东国大黄金股份有限公司）
基金项目：
- 山东省重点研发计划（重大科技创新工程）项目（2023CXGC010903）
详细信息：
- 作者简介：
- 邵京明（1974—），男，高级工程师，从事多金属矿物浮选及贵金属冶炼加工等研究工作；E‑mail：sjm@sdguoda. com
- 通讯作者：
- 郭建东（1977—），男，高级工程师，从事贵金属选矿及冶炼、金银矿物资源综合利用研究等工作；E‑mail：guojiandong08@126. com
- PDF下载
Process optimization and industrial application of advanced softening technology for gold smelting wastewater
- English Author：
Shao Jingming, Sun Renfeng, Guo Jiandong, Xue Xigang, Wang Shaojie, Xu Jinling, Liang Zhiwei
- Unit：
- （Shandong Guoda Gold Co., Ltd.）
- 摘要
- 在线预览
- 参考文献
摘要:
针对黄金冶炼废水硬度高造成循环利用时设备结垢、滤布板结、金泥品质低及金颗粒表面被包襄导致金回|收效果差等问题，通过工艺优化及系统改造等措施，建设了年处理79.2万m’黄金冶炼废水软化与循环利用系统，并成功实现了工业化应用。与黄金冶炼废水直接循环利用相比，软化净水循环利用后的浸渣金品位平均降低了0.15g/t，碳酸钠用量降低了3.50 kg/t，氰化钠用量降低了1.50 kg/t。改造后的废水深度软化工艺效果明显，软化净水硬度低于300 mg/L，完全达到循环利用要求，年节资增收达1300余万元，实现了黄金冶炼企业废水高值化、资源化利用。
关键词:
黄金冶炼废水；深度软化；二氧化碳软化法；工业化应用；循环利用；资源化利用
Abstract:
To address issues such as equipment scaling, filter cloth hardening, Iow-quality gold mud, and poor gold recovery due to high hardness in gold smelting wastewater during recycling, this study optimized processes and modified systems to establish an annual treatment capacity of 792 000 m of gold smelting wastewater softening and circular utilization. The system has been successfully industrialized. Compared to direct recycling of untreated wastewater, the softened and purified water reduced the average gold grade in cyanidation tailings by 0.15 g/t, decreased sodium carbonate consumption by 3.50 kg/t, and Iowered sodium cyanide usage by 1.50 kg/t. The upgraded advanced softening process demonstrated significant effectiveness, achieving softened water hardness below 300 mg/L., fully meeting recycling requirements. Annual cost savings and revenue increased by over 13 million yuan, realizing high-value and resource-based utilization of wastewater in gold smelting enterprises.
Keywords:
gold smelting wastewater; advanced softening; carbon dioxide softening method; industrialized application; recycling; resource‑based utilization
