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1	CODcr	1000—1500	<100
2	BOD5	650	<20
3	SS	750	<70
4	PHֵ	6��0-9��0	6——9
5	NH₃-N��	25	15

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         COD        100mg/l
         BOD5        20 mg/l
         SS          70mg/l
         PH��6��9

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