BAO Han,TANG Ying-dong,ZHANG Yi-zhang,et al.Sediment Pollution Investigation and Treatment Practice in Shenzhen Maozhou River Basin[J].China Water & Wastewater,2021,37(22):99-103.
深圳茅洲河流域底泥污染调查与治理实践
- Title:
- Sediment Pollution Investigation and Treatment Practice in Shenzhen Maozhou River Basin
- Keywords:
- watershed management; river dredging; sediment treatment; characteristic pollutant; recycling
- 摘要:
- 茅洲河流域受长期污(废)水排放、垃圾倾倒和泥沙迁移运动的影响,河道淤积严重,底泥污染问题突出。通过对流域底泥污染的全面调查分析,系统评估茅洲河底泥的污染程度,利用特征污染物的“源-汇”实验吸附解吸特征,计算了茅洲河各区的疏挖量,并评估了清淤对河道防洪和堤岸结构的影响。采用绞吸式挖泥船为主、小型清淤设备为辅的清淤方案,以及泥砂分离+固液分离+板框压滤脱水工艺,对产出物按分级标准进行资源化利用。
- Abstract:
- Affected by long-term sewage and wastewater discharge, garbage dumping and sediment movement, the river channel deposition and sediment pollution problem became severe in Maozhou River basin. Through a comprehensive investigation, the sediment pollution degree was systematically evaluated. The dredging volume was calculated by each partition through analyzing absorption-desorption characteristics in the “source-influx” experiment, the influence on flood control and bank structure was also evaluated. The dredging project was conducted mainly by a cutter suction dredger, and supplemented by small dredging equipment. It adopted the sludge-sand separation, solid-liquid separation, and plate-frame pressure filtration process to treat the dredged sediment, and the output was recycled according to the classification standards.
相似文献/References:
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