城市应急备用水源需求和规模确定方法研究

目前我国水污染事故频发,单一水源城市缺少应急水源储备,应急供水设施的建设缺乏有效性和针对性,正在实施的《城市给水工程规划规范》中尚无应急供水系统规划的相关内容.因此亟需开展城市应急供水规划调控技术方法的研究,总结城市应急供水系统规划的关键指标,指导城市应急供水系统规划.以广东省东莞市为例,重点研究了城市应急备用水源的需求和规模确定方法.东莞市作为单一水源城市,其常规水源存在有机物或重金属突发污染风险,需建设应急备用水源.分析确定东莞市极限最低应急需水量为65万m3/d,正常供水情况下备用水源规模至少应为1 059万m3;压缩水量供水情况下,应急调蓄设施规模至少应为195万m3.

Study on the determination of the demand and quantity of the urban emergency water resource

Due to the frequent water pollution accidences in China,single water resource city lacks the supplement emergence water reserve and the construction of emergency water facilities lack validity and direction neither.There are no related contents about the emergency water supply system plan in current Code for urban water supply engineering planning.As a result,there is a urgent need to carry out a study on the urban emergency water supply plan and adjustment technology,which will summarize the urban emergency water supply system plan key markers,instruct the urban emergency water supply system plan.Taking Dongguan City in Guangdong Province as a case study,this paper studied the demand and quantity determination method of urban emergency water supply resource.As a single water resource city,Dongguan faces the unexpected organic or heavy metal pollution in its normal water resource,and the emergency water resource is in great need.The analysis showed that the minimum limit of Dongguan emergency water resource quantity was 650 000 m3/d,and the backup water resource quantity was at least 10 590 000 m3;under the condition of minimum water supply,the emergency adjustment facility scale was at least 1 950 000 m3.