GB50014-2021······1
1 总则······13
2 术语······15
3 排水工程······20
3.1 一般规定······20
3.2 雨水系统······20
3.3 污水系统······21
4 设计流量和设计水质······23
4.1 设计流量······23
4.2 设计水质······28
5 排水管渠和附属构筑物······30
5.1 一般规定······30
5.2 水力计算······31
5.3 管道······35
5.4 检查井······36
5.5 跌水井······38
5.6 水封井······38
5.7 雨水口······38
5.8 截流设施······39
5.9 出水口······40
5.10 立体交叉道路排水······40
5.11 倒虹管······41
5.12 渗透管渠······42
5.13 渠道······43
5.14 雨水调蓄设施······44
5.15 管道综合······45
6 泵站······47
6.1 一般规定······47
6.2 设计流量和设计扬程······48
6.3 集水池······49
6.4 泵房设计······50
6.5 出水设施······52
7 污水和再生水处理······54
7.1 一般规定······54
7.2 厂址选择和总体布置······55
7.3 格栅······59
7.4 沉砂池······60
7.5 沉淀池······61
7.6 活性污泥法······64
7.7 回流污泥和剩余污泥······76
7.8 生物膜法······77
7.9 供氧设施······81
7.10 化学除磷······85
7.11 深度和再生处理······85
7.12 自然处理······89
7.13 消毒······92
8 污泥处理和处置······94
8.1 一般规定······94
8.2 污泥浓缩······95
8.3 污泥消化······95
8.4 污泥好氧发酵······99
8.5 污泥机械脱水······102
8.6 污泥石灰稳定······103
8.7 污泥干化······104
8.8 污泥焚烧······106
8.9 污泥处置和综合利用······106
8.10 污泥输送和贮存······107
8.11 除臭······108
9 检测和控制······111
9.1 一般规定······111
9.2 检测······111
9.3 自动化······112
9.4 信息化······112
9.5 智能化······113
9.6 智慧排水系统······113
附录A 年径流总量控制率对应的设计降雨量计算方法······115
附录B 暴雨强度公式的编制方法······116
附录C 排水管道和其他地下管线（构筑物）的最小净距······118
本标准用词说明······120
引用标准名录······121
附：条文说明······122
1 总则······127
3 排水工程······131
3.1 一般规定······131
3.2 雨水系统······133
3.3 污水系统······135
4 设计流量和设计水质······138
4.1 设计流量······138
4.2 设计水质······154
5 排水管渠和附属构筑物······156
5.1 一般规定······156
5.2 水力计算······159
5.3 管道······161
5.4 检查井······163
5.5 跌水井······166
5.6 水封井······166
5.7 雨水口······167
5.8 截流设施······169
5.9 出水口······170
5.10 立体交叉道路排水······170
5.11 倒虹管······173
5.12 渗透管渠······174
5.13 渠道······175
5.14 雨水调蓄设施······175
5.15 管道综合······177
6 泵站······179
6.1 一般规定······179
6.2 设计流量和设计扬程······182
6.3 集水池······183
6.4 泵房设计······185
6.5 出水设施······187
7 污水和再生水处理······189
7.1 一般规定······189
7.2 厂址选择和总体布置······191
7.3 格栅······195
7.4 沉砂池······197
7.5 沉淀池······200
7.6 活性污泥法······205
7.7 回流污泥和剩余污泥······218
7.8 生物膜法······219
7.9 供氧设施······225
7.10 化学除磷······228
7.11 深度和再生处理······230
7.12 自然处理······233
7.13 消毒······238
8 污泥处理和处置······243
8.1 一般规定······243
8.2 污泥浓缩······245
8.3 污泥消化······246
8.4 污泥好氧发酵······257
8.5 污泥机械脱水······259
8.6 污泥石灰稳定······264
8.7 污泥干化······264
8.8 污泥焚烧······266
8.9 污泥处置和综合利用······268
8.10 污泥输送和贮存······268
8.11 除臭······269
9 检测和控制······273
9.1 一般规定······273
9.2 检测······274
9.3 自动化······277
9.4 信息化······278
9.5 智能化······278
9.6 智慧排水系统······280
附录A 年径流总量控制率对应的设计降雨量计算方法······281
