期刊论文

Influence of Turbidity on Removing Cadmium,Lead and Arsenic in Water

中文

长江科学院院报

1001-5485

2021

38

03

39-44

10.11988/ckyyb.20191561

广东省科技计划项目（2016B020240007）； 中央级公益性科研院所基本科研业务专项（PM-zx703-201905-143）；

本校为第一机构

针对流域突发性重金属污染,不同浊度下的泥沙对重金属有一定的去除效果。以浊度为指示指标,通过试验研究了常温(25 ℃)和低温(5 ℃)条件下浊度50 ~ 650 NTU(Nephelometric Turbidity Unit)范围内泥沙对重金属镉、铅、砷吸附去除的影响。试验结果表明:泥沙对重金属镉、铅、砷的去除效果为铅>镉>砷,其中铅的去除率达到99%。浊度与能处理达标的最高重金属浓度呈线性关系,常温下浊度与能处理达标的最高镉、铅、砷浓度关系曲线的相关系数分别为0.996、0.998、0.999,低温下其相关系数分别为0.999、0.996、0.998。常温较低温更利于泥沙对重金属镉、铅、砷的去除,能去除更高浓度的重金属,达到生活饮用水...

Water body with various turbidity has some mitigating effect in treating emergent heavy metal contamination in drainage basin.In this experiment,turbidity was used as indicator to study the influence of turbidity ranging 50 NTU~650 NTU (Nephelometric Turbidity Unit) on the removal of heavy metals (cadmium,lead,and arsenic) at room temperature (25 ℃) and low temperature (5 ℃).Results suggested that sediment had the best removal effect on lead,followed by cadmium and arsenic in sequence,among which the removal rate of lead amounted to 99%.Turbi...