详细信息
一、工程背景
湖南省三元矿业有限公司位于湖南省浏阳市沙市镇秀山,该公司主要生产重晶石,同时综合回收铅、锌。在生产过程中会有废水产生,如这些废水不经过治理后直接排放,会严重影响周围的环境。
二、工程内容
根据环评批复,选矿水要求全部排放到尾矿库,尾矿库的溢流水及渗滤液经过处理后全部回用,矿井涌水经过处理后达标排放,我公司设计污水处理系统根据废水的性质不同,设计采取分质分流处理的方法进行处理。选矿水全部排放到尾矿库,尾矿库的溢流水及渗滤液单独收集后,采用混凝、沉淀的方法处理,全部回用于生产车间;矿井涌水单独收集后经过混凝沉淀+过滤后达标排放。
三、 工艺
300吨/天选矿污水处理工艺流程图
200吨/天矿井涌水处理工艺流程图
四、 工程效果
废水经处理后应达到《污水综合排放标准》(GB8978-1996)一级排放标准,其具体指标如下:
CODcr(mg/L) Cu(mg/L) Zn(mg/L) Pb(mg/L) Cd(mg/L) SS(mg/L) PH值
≤100 ≤0.5 ≤2.0 ≤1.0 ≤0.1 ≤70 6-9
五、 工程照片


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