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ICS 13.060.30 Z 77 DB46 DB 46/4832019 Discharge standard of water pollutants for rural sewage treatment facilities 2019-11-04 2019-12-15 DB46/4832019 I GB/T 1.1-2009 2019 11 DB46/4832019 1 1 500 m3/d 2 GB 3097 GB 3838 GB 4284 GB 5084 GB/T 6920 PH GB 11607 GB/T 11893 GB/T 11901 GB 11914 GB 18918 GB/T 18921 GB/T 23486 GB/T 31962 HJ 347.1 HJ 347.2 HJ/T 399 HJ 535 HJ 574 HJ 636 HJ 637 HJ 773 3 DB46/4832019 2 3.1 rural sewage 3.2 rural sewage treatment facility 3.3 existing rural sewage treatment facility 3.4 new rural sewage treatment facility()4 4.1 4.1.1 4.1.2 2020 4.2 4.2.1 4.2.1.1 GB/T 31962 4.2.1.2 500 m3/d 1 mg/L 1 pH/6-9 2 SS 20 30 60 3 CODCr 60 80 120 4 NH3-N N 8 20 25 5 TN N 20-DB46/4832019 3 1 6 TP P 1 3-7 3 5 20 8/L 104-100 m3/d GB 3838 GB3097 4.2.2 4.2.2.1 GB 3838 GB 3097 4.2.2.2 4.2.2.3 5 m3/d 4.2.2.4 5 m3/d 4.2.2.5 4.3 4.3.1 4.3.2 GB 18918 4.3.3 a)b)GB 5084 c)GB 11607 d)GB/T 18921 4.3.4 GB 4284 GB/T 23486 5 5.1 5.2 DB46/4832019 4 5.3 2 6 6.1 6.2 6.3 1 pH GB/T 6920 2 SS GB/T 11901 3 CODCr GB 11914 HJ/T 399 4 NH3-N HJ 535 5 TN HJ 636 6 TP GB/T 11893 7 HJ 637 8 HJ 347.1 HJ 347.2 _
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