摘要
在深入分析某高原铁路隧道工程隧道施工废水来源、水量、水质特性及周边水环境现状的基础上,明确了该工程水环境保护面临的突出挑战就是,隧道施工废水量大不得不排与隧址区水环境极其敏感限制其外排的矛盾。为此,在同类工程现场调研、广泛文献调研和深入开展现场踏勘的基础上,提出"清污分流、多渠道回用、以混凝+沉淀+过滤"工艺(毗邻Ⅱ类水体时增加吸附深度处理)为核心的末端治理、连续在线监测及加强环境管理等综合性隧道施工废水处理对策,减轻隧道施工废水排放的不良水环境影响,解决该工程隧道施工废水排放受限的难题。
Based on the in-depth analysis of the source,water quantity,water quality and the current situation of the surrounding water environment in a plateau Railway tunnel project,this paper clarifies the great challenges about water environment protection of the project,such as the contradiction between the large amount of tunnel construction wastewater which has to be discharged and the extremely sensitive water environment in the tunnel site which restricts the discharge.Based on the field investigation of similar projects,extensive literature research and in-depth field investigation,this paper proposes a series of integrated strategies,including a separate drainage method of clean water from muddy water,multi-channel of wastewater reuse,"coagulation+sedimentation+filtration"sewage treatment method(Adding deep treatment of adsorption adjacent to class II water areas),continuous on-line monitoring and strengthening environmental management,etc.The proposed strategies reduce the adverse water environment impact of tunnel construction wastewater discharge and solve the wastewater discharge limitation problem of the project.
作者
汪建元
WANG Jianyuan(China Railway First Survey and Design Institute Group Co.,Ltd.,Xi'an 710043,China)
出处
《铁道标准设计》
北大核心
2020年第10期148-153,共6页
Railway Standard Design
基金
中国铁路总公司科技研究开发计划课题(P2018G047)。
关键词
铁路隧道
水环境敏感性
施工废水
排放
对策
railway tunnel
water environment sensitiveness
construction wastewater
discharge
strategy
