W. Va. Code R. agency 64, tit. 64, ser. 64-47, tbl. 64-47I

Current through Register Vol. XLI, No. 50, December 13, 2024
Table 64-47I - RETURN SLUDGE RATE

Minimum

Maximum

Standard rate

15

75

Carbonaceous state of separate stage nitrification

15

75

Step aeration

15

75

Contact stabilization

50

150

Extended aeration

50

150

Nitrification stage of separate stage nitrification

50

200

W. Va. Code R. agency 64, tit. 64, ser. 64-47, tbl. 64-47I