Section 217.242 - Control of Sludge and Supernatant Volumes(a) Supernatant, filtrate, or centrate resulting from sludge processing must be returned to the headworks of the wastewater treatment facility, the influent lift station, or to a point preceding an aeration system or secondary treatment unit.(b) A sludge processing unit must limit digester supernatant liquor volume to the greatest extent practicable.(c) Returned supernatant, filtrate, or centrate from a sludge processing unit must not interfere with wastewater treatment processes in another treatment unit.30 Tex. Admin. Code § 217.242
The provisions of this §217.242 adopted to be effective August 28, 2008, 33 TexReg 6843; Amended by Texas Register, Volume 40, Number 47, November 20, 2015, TexReg 8336, eff. 12/4/2015