Almost half — 40 percent to 60 percent — of total wastewater treatment plant expenditures go to processing, treatment and disposal of sludge for beneficial use, according to Water & Wastes Digest.
A white paper on the trade publication website says a membrane thickening aerobic digestion process is one solids-handling technology that wastewater treatment plants can use that provides reliable and improved thickening performance and sustainable nutrient management.
