绿萝去除低浓度生活污水COD效应的研究

摘要

在实验室条件下研究绿萝对污水中COD的去除率及去除量与时间的关系。结果表明：绿萝用于净化COD浓度较低的生活污水时，其对污水的净化能力随污水中COD值的降低而下降；单种绿萝对生活污水进行净化处理时，经过6dCOD去除率即达到近50%；单种绿萝处理生活污水（COD浓度160~190mg/L），当绿萝覆盖水面约为80%时，既能维持高的去除率又有利于绿萝生长。%In conditions of the laboratory,study removal rate of COD in wastewater and removal of the relationship between the quantity and time.The results showed that:Scindapsus aureum is used to purify Low concentration of COD of sewage,the sewage purification ability decreases with the decreasing of sewage COD value;a single scindapsus aureum for sewage purification treatment, the COD removal rate is almost 50% after six days;when the surface cover rate by scindapsus aureum were approximate 80%,a high removal rate could be maintained and it would be beneficial to the growth of scindapsus aureum.