基于土壤改良剂的河道底泥原位修复效果

Effects of Soil Amendments on In-situ Remediation of River Sediment

底泥是河道生态系统的重要组成部分。河道底泥中富集的营养物质(如氮、磷等)是导致河道水体富营养化,同时,底泥中的有机物和有害物质会通过溶解、悬浮或释放到水体中,进一步加剧水体富营养化,从而对河流生态系统和水质产生了严重影响。因此,修复河道底泥污染对于保护生态环境具有重要的意义。基于此,本文将硝酸钙、酵素和腐殖酸三种土壤改良剂引入原位修复河道底泥领域,通过监测上覆水以及底泥中pH、EC、DO、ORP、NH_(4)^(+)-N、COD、TP七个指标,分别探究各个处理组对河道底泥和上覆水质的修复情况,旨在通过实际观察和实验数据初步了解3种土壤改良剂对河道底泥进行原位修复的实际效果。

River course is an important part of urban construction and development.River course pollution has a negative impact on residents and ecological environment.In this paper,three soils of amendments,calcium nitrate,enzyme and humic acid were introduced into the field of in-situ remediation of river sediment.And,the restoration of river sediment and overlying water quality in each experimental groups were studies by monitoring the seven indicators of pH,EC,DO,ORP,NH_(4)^(+)-N,COD and TP in overlying water and sediment,respectively.This paper aims to preliminarily understand the practical effects of three soil amendments on in-situ remediation of river sediment through actual observation and experimental data.