【摘 要】
：
探讨污染底泥中重金属的释放特性和稳定化材料对污染底泥的稳定化效果,采用南方某运河的底泥,加入水泥、石灰和膨润土三种稳定化材料,添加量为100 kg/m3,密闭养护7d,自然
【机 构】
：
南京河海科技有限公司,江苏南京210098
论文部分内容阅读
探讨污染底泥中重金属的释放特性和稳定化材料对污染底泥的稳定化效果,采用南方某运河的底泥,加入水泥、石灰和膨润土三种稳定化材料,添加量为100 kg/m3,密闭养护7d,自然风干后研磨,过200目筛,应用固体废物浸出毒性的浸出方法,研究了浸提时间对污泥中重金属浸出的影响。结果表明：不同的重金属,经过不同的稳定化处理后,呈现出不同的浸出规律；各个重金属的稳定浸出浓度均出现在18小时左右,18小时后基本趋于稳定；水泥、石灰对底泥中的重金属有较好的稳定化效果。
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