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Low - Tech Alternative to Activated Sludge Promises Big Savings

Communities are finding it difficult to finance wastewater treatment plants that will meet more stringent effluent limits. Engineers are seeking low - cost treatment alternatives.

Low - Tech Alternative to Activated Sludge Promises Big Savings (pdf)
Communities are finding it difficult to finance wastewater treatment plants that will meet more stringent effluent limits. Engineers are seeking low - cost treatment alternatives.