铁路隧道施工期废水处理工艺技术研究-《高速铁路技术》

文章信息/Info

Title:: Research on Process Technology of Wastewater Treatment during Railway Tunnel Construction Period

Author(s):: ZHAO Zicheng; China Railway Eryuan Engineering Group Co., Ltd., Chengdu 610031, China

Keywords:: tunnel|sewage quality|influencing factors|treatment scale|treatment process

摘要:: 针对目前铁路隧道施工对环境造成的严重污染，对废水处理工艺提出更高技术要求的现状。本文充分调研隧道污水来源，对水质影响因素以及污水水质特征进行详细分析；以未衬砌段隧道涌水量、工区长度、处理设备工作制度等作为主要依据，合理确定了废水处理规模；根据环评要求，详细分析岩层地质情况、受纳水体等级、环境容量（排出口与水体距离）、施工现场条件等影响因素，总结出经济有效的废水处理工艺以及工艺流程，确保废水处理达标排放或者回用。本文研究成果可为其它废水处理工程提供指导。

Abstract:: In view of the serious environmental pollution caused by railway tunnel construction, higher technical requirements are put forward for the wastewater treatment process. In the paper, the source of tunnel sewage is fully investigated and the influencing factors of water quality and the characteristics of sewage water quality are analyzed in detail. Based on the water inflow of unlined tunnel, the length of the work area and the working system of the treatment equipment, the wastewater treatment scale is reasonably determined. According to the requirements of environmental impact assessment, the influencing factors such as geological conditions of rock strata, receiving water body grade, environmental capacity (distance between discharge port and water body), construction site conditions, etc. are analyzed in detail, and economical and effective wastewater treatment processes and their flows are summarized to ensure that wastewater treatment meets the discharge or reuse standards. They can provide guidance for other wastewater treatment projects.