河道底泥反铲式疏浚对水质影响的中试研究  

A Pilot Test Study on the Influence of Backhoe Dredging Process on River Water Quality

作　　者：邓群 孙远军[2] 卢士强[2] 邵一平[2] 王彪[2] Deng Qun;Sun Yuanjun;Lu Shiqiang;Shao Yiping;Wang Biao(Shanghai Dike Pump and Gate Facilities Management Office,Shanghai 200080;Shanghai Academy of Environmental Sciences,Shanghai 200233)

机构地区：[1]上海市堤防(泵闸)设施管理处,上海200080 [2]上海市环境科学研究院,上海200233

出　　处：《上海环境科学》2020年第6期264-268,共5页Shanghai Environmental Sciences

摘　　要：通过反铲式河道底泥疏浚工艺的中试,研究该工艺对周边水域水质的影响。结果表明,在疏浚点上游100 m至下游500 m的范围内,反铲式疏浚会对水质产生一定影响,下游区域受影响程度高于上游区域;其中,浊度、氨氮和总氮受影响的范围最广,生化需氧量、总锌、浊度受影响的程度较高,生化需氧量和总磷受影响持续的时间最长,浊度、总氮和总锌受影响持续的时间最短。反铲式疏浚并不会改变周边水域的水质类别。A pilot test of backhoe-type sediment dredging was carried out in the river to study the influence of the dredging process on the surrounding water quality.It has shown that in the range along the river from 100 m upstream to 500 m downstream of the dredging point,backhoe dredging would cause a certain impact on water quality whilst being more affected in the downstream reach.The extents affected by turbidity,ammonia nitrogen and total nitrogen were wider,and the degrees affected by biochemical oxygen demand,total zinc and turbidity were higher.The durations influenced by biochemical oxygen demand and total phosphorus would keep longer,but that affected by turbidity,total nitrogen and total zinc would sustain shorter.Backhoe dredging would not alter the quality categories of surrounding waters.

关 键 词：河道疏浚 反铲式挖泥 中试 水质影响 

分 类 号：X52[环境科学与工程—环境工程]