再生水补给河道周边水体特征——以北京潮白河顺义段为例
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姜瑞雪, 韩冬梅, 宋献方, 杨丽虎, 李炳华
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Impacts of reclaimed water recharge to a river channel on ambient water bodies: A case study of the Chaobai River in Beijing
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JIANG Ruixue, HAN Dongmei, SONG Xianfang, YANG Lihu, LI Binghua
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表2 再生水、地表水和地下水的部分水质标准
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Table 2 Quality standards for reclaimed water, surface water, and groundwater
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| 指标 | 单位 | 工程设计出水水质 | 地表水环境质量标准（GB 3838—2002） | | 地下水质量标准（GB/T 14848—2017） | | Ⅲ类 | Ⅳ类 | Ⅰ类 | Ⅱ类 | Ⅲ类 | Ⅳ类 | Ⅴ类 | | pH | 无量纲 | 6~9 | 6~9 | 6~9 | | 6.5~8.5 | 5.5~6.5,8.5~9 | <5.5,>9 | | DO | mg/L | ≥5 | ≥5 | ≥3 | — | — | — | — | — | | CODMn | mg/L | ≤6 | ≤6 | ≤10 | ≤1 | ≤2 | ≤3 | ≤10 | ≤10 | | BOD5 | mg/L | ≤4 | ≤4 | ≤6 | — | — | — | — | — | | TP | mg/L | ≤0.2 | ≤0.2 | ≤0.3 | — | — | — | — | — | | TN | mg/L | ≤15 | ≤1 | ≤1.5 | — | — | — | — | — | | TH | mg/L | — | — | — | ≤150 | ≤300 | ≤450 | ≤650 | >650 | | TDS | mg/L | — | — | — | ≤300 | ≤500 | ≤1000 | ≤2000 | >2000 | | NO3-N | mg/L | ≤10 | ≤10 | — | ≤2.0 | ≤5.0 | ≤20 | ≤30 | >30 | | NO2-N | mg/L | — | — | — | ≤0.01 | ≤0.1 | ≤1 | ≤4.8 | >4.8 | | NH4-N | mg/L | ≤1 | ≤1 | ≤1.5 | ≤0.02 | ≤0.1 | ≤0.5 | ≤1.5 | >1.5 | | SO42- | mg/L | — | — | — | ≤50 | ≤150 | ≤250 | ≤350 | >350 | | Cl- | mg/L | — | — | — | ≤50 | ≤150 | ≤250 | ≤350 | >350 | | Na+ | mg/L | — | — | — | ≤100 | ≤150 | ≤200 | ≤400 | >400 |
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