GB50014-2021······1

1 總則······13

2 術(shù)語······15

3 排水工程······20

3.1 一般規(guī)定······20

3.2 雨水系統(tǒng)······20

3.3 污水系統(tǒng)······21

4 設(shè)計流量和設(shè)計水質(zhì)······23

4.1 設(shè)計流量······23

4.2 設(shè)計水質(zhì)······28

5 排水管渠和附屬構(gòu)筑物······30

5.1 一般規(guī)定······30

5.2 水力計算······31

5.3 管道······35

5.4 檢查井······36

5.5 跌水井······38

5.6 水封井······38

5.7 雨水口······38

5.8 截流設(shè)施······39

5.9 出水口······40

5.10 立體交叉道路排水······40

5.11 倒虹管······41

5.12 滲透管渠······42

5.13 渠道······43

5.14 雨水調(diào)蓄設(shè)施······44

5.15 管道綜合······45

6 泵站······47

6.1 一般規(guī)定······47

6.2 設(shè)計流量和設(shè)計揚(yáng)程······48

6.3 集水池······49

6.4 泵房設(shè)計······50

6.5 出水設(shè)施······52

7 污水和再生水處理······54

7.1 一般規(guī)定······54

7.2 廠址選擇和總體布置······55

7.3 格柵······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 供氧設(shè)施······81

7.10 化學(xué)除磷······85

7.11 深度和再生處理······85

7.12 自然處理······89

7.13 消毒······92

8 污泥處理和處置······94

8.1 一般規(guī)定······94

8.2 污泥濃縮······95

8.3 污泥消化······95

8.4 污泥好氧發(fā)酵······99

8.5 污泥機(jī)械脫水······102

8.6 污泥石灰穩(wěn)定······103

8.7 污泥干化······104

8.8 污泥焚燒······106

8.9 污泥處置和綜合利用······106

8.10 污泥輸送和貯存······107

8.11 除臭······108

9 檢測和控制······111

9.1 一般規(guī)定······111

9.2 檢測······111

9.3 自動化······112

9.4 信息化······112

9.5 智能化······113

9.6 智慧排水系統(tǒng)······113

附錄A 年徑流總量控制率對應(yīng)的設(shè)計降雨量計算方法······115

附錄B 暴雨強(qiáng)度公式的編制方法······116

附錄C 排水管道和其他地下管線（構(gòu)筑物）的最小凈距······118

本標(biāo)準(zhǔn)用詞說明······120

引用標(biāo)準(zhǔn)名錄······121

附：條文說明······122

1 總則······127

3 排水工程······131

3.1 一般規(guī)定······131

3.2 雨水系統(tǒng)······133

3.3 污水系統(tǒng)······135

4 設(shè)計流量和設(shè)計水質(zhì)······138

4.1 設(shè)計流量······138

4.2 設(shè)計水質(zhì)······154

5 排水管渠和附屬構(gòu)筑物······156

5.1 一般規(guī)定······156

5.2 水力計算······159

5.3 管道······161

5.4 檢查井······163

5.5 跌水井······166

5.6 水封井······166

5.7 雨水口······167

5.8 截流設(shè)施······169

5.9 出水口······170

5.10 立體交叉道路排水······170

5.11 倒虹管······173

5.12 滲透管渠······174

5.13 渠道······175

5.14 雨水調(diào)蓄設(shè)施······175

5.15 管道綜合······177

6 泵站······179

6.1 一般規(guī)定······179

6.2 設(shè)計流量和設(shè)計揚(yáng)程······182

6.3 集水池······183

6.4 泵房設(shè)計······185

6.5 出水設(shè)施······187

7 污水和再生水處理······189

7.1 一般規(guī)定······189

7.2 廠址選擇和總體布置······191

7.3 格柵······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 供氧設(shè)施······225

7.10 化學(xué)除磷······228

7.11 深度和再生處理······230

7.12 自然處理······233

7.13 消毒······238

8 污泥處理和處置······243

8.1 一般規(guī)定······243

8.2 污泥濃縮······245

8.3 污泥消化······246

8.4 污泥好氧發(fā)酵······257

8.5 污泥機(jī)械脫水······259

8.6 污泥石灰穩(wěn)定······264

8.7 污泥干化······264

8.8 污泥焚燒······266

8.9 污泥處置和綜合利用······268

8.10 污泥輸送和貯存······268

8.11 除臭······269

9 檢測和控制······273

9.1 一般規(guī)定······273

9.2 檢測······274

9.3 自動化······277

9.4 信息化······278

9.5 智能化······278

9.6 智慧排水系統(tǒng)······280

附錄A 年徑流總量控制率對應(yīng)的設(shè)計降雨量計算方法······281