Category: I-Practice

Matching:  A predominance of these microorganisms indicates 1.  Amoeba A.  Fast settling biomass and pin floc 2.  Flagellates B.  Good settling biomass 3.  Ciliates C.  Slow settling biomass and stragglers 4.  Rotifers   5.  Nematodes   Which of the following are associated with ashing in the final clarifier(s) of an activated sludge plant? Variable High Low F :… Continue reading More Wastewater Treatment Questions

If the volatile solids concentration in raw sludge is 66% and the volatile solids concentration in the digested sludge is 56%, what was the volatile solids reduction? Match the following: 1.  MCRT A.  Final Effluent TSS 2.  Sludge Age B.  Primary Effluent TSS 3.  SRT C.  WAS   D.  WAS + Final Effluent TSS  … Continue reading More Wastewater Math Problems & Charts

If the volatile solids concentration in raw sludge is 66% and the volatile solids concentration in the digested sludge is 56%, what was the volatile solids reduction? Match the following: 1.  MCRT A.  Final Effluent TSS 2.  Sludge Age B.  Primary Effluent TSS 3.  SRT C.  WAS   D.  WAS + Final Effluent TSS  … Continue reading More Wastewater Math Problems & Charts