微生物复合修复剂-沉水植物生态修复技术在湖泊治理中的应用研究

Research on the Application of Microbial Composite Remediation Agent-Submerged Plant Ecological Remediation Technology in Lake Management

通过对微生物复合修复剂-沉水植物生态修复技术在湖泊治理过程中的应用研究,发现生态修复技术可以有效地降低湖泊富营养化程度,逐渐恢复湖泊的自净能力。结果表明:当对湖泊实施生态修复技术后,湖水的透明度、溶解氧(DO)和氧化还原电位(ORP)都呈上升趋势,水体pH维持在6.0~9.0,透明度、DO和ORP最高值分别可以达到130 cm、8.21 mg/L和278 mv。修复后期,COD、NH_(3)-N和TP浓度比修复之前分别下降了94.3%、92.0%和98.3%,表明生态修复技术对控制湖水COD、NH_(3)-N和TP具有显著效果,可为富营养化湖泊治理提供一种有效的方法。

Through the application research of microbial compound remediation agent and submerged plants in the process of lake treatment, it was found that ecological restoration technology could effectively reduce the lake eutrophication, and gradually restore the lake’s self-purification ability.The result showed that after the implementation of ecological restoration technology, the transparency, DO and ORP of the lake water were all on the rise, pH of the water maintained 6.0-9.0,and the maximum values of transparency, DO and ORP could reach 130 cm, 8.21 mg/L and 278 mv respectively.At the later stage of the restoration, the concentration of COD,NH_(3)-N and TP respectively decreased by 94.3%,92.0% and 98.3% compared with those before restoration, which indicated that ecological restoration technology contributed significantly to the control of COD,NH_(3)-N and TP in the lake and it could provide an effective method for treatment on lake eutrophication.