建筑与小区雨水利用工程技术规范（征求意见稿）
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7.4 系统控制 ......................................................................... 22
8 水质处理 .......................................................................... 23
8.1 处理工艺 ......................................................................... 23
8.2 处理设施 ......................................................................... 23
8.3 雨水处理站 ....................................................................... 24
9 蓄存排放 .......................................................................... 25
10 施工安装 ......................................................................... 26
10.1 一般规定 ........................................................................ 26
10.2 管道敷设 ........................................................................ 26
10.3 设备安装 ........................................................................ 26
11 工程验收 ......................................................................... 27
11.1 管道水压试验..................................................................... 27
11.2 验收............................................................................ 27
12 运行管理 ......................................................................... 28
附录 A 全国各省会城市降雨量资料 ..................................................... 29
附录 B 雨水水质 ..................................................................... 30
附录 C 北京地区陆面蒸发量、水面蒸发量 ............................................... 31
附录 D 深度系数和形状系数 ........................................................... 32
附录 E 长沟容量系数 .1 总则 ...............................................................................1
2 术语、符号 .........................................................................2
2.1 术语..............................................................................2
2.2 符号..............................................................................4
3 水量与水质 .........................................................................6
3.1 降雨量和雨水水质 ...................................................................6
3.2 用水量和水质.......................................................................6
4 系统设置 ...........................................................................8
4.1 一般规定 .......................................................................... 8
4.2 系统计算 .......................................................................... 8
4.3 系统选型 .......................................................................... 9
5 雨水收集 .......................................................................... 11
5.1 屋面雨水收集...................................................................... 11
5.2 屋面集水沟与溢流口................................................................. 11
5.3 有压非满流屋面雨水收集系统.......................................................... 13
5.4 虹吸（压力）式屋面雨水收集系统 ...................................................... 14
5.5 地面雨水收集...................................................................... 15
5.6 雨水弃流 ......................................................................... 15
6 土地入渗 .......................................................................... 17
6.1 一般规定 ......................................................................... 17
6.2 土壤入渗设施...................................................................... 17
6.3 入渗量计算 ....................................................................... 19
6.4 场地雨水排水...................................................................... 20
7 雨水储存与回用 .................................................................... 21
7.1 一般规定 ......................................................................... 21
7.2 雨水池........................................................................... 21
7.3 雨水回用系统...................................................................... 22 ....
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工程规范
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