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PACKAGED ACTIVATED SLUDGE TREATMENT SYSTEMS A NEW APPROACH TO THE SMALL FLOWS PROBLEM

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Abstract:

Packaged activated sludge systems are proposed as a means for resorts, lakeshore properties, and small communities to meet wastewater effluent standards. The BioCompact activated sludge system has been used in Europe and on board of ships of various nations since the mid-seventies. The first North American installation was completed in Northern Township, MN, in 1999. Electronic control systems permit these systems to cope with highly variable flows and loads. BioCompacts have previously achieved a 97 percent BOD removal rate, resulting in an effluent BOD of less than 10 mg/L. Furthermore, the installation in Northern Township has achieved Total Kjeldahl Nitrogen (TKN) levels in the effluent of less than 4 mg/L.

Unlike commonly used uncontrolled systems, packaged activated sludge units can provide a consistent effluent quality, making them the ideal solution to the small flows problem. Especially for locations in which lake discharge is required, there currently is no other solution.

Document Type: Research Article

DOI: https://doi.org/10.2175/193864701790860254

Publication date: 2001-01-01

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