Nitrification of a Municipal Trickling Filter Effluent Using Rotating Biological Contactors,
NORTHEASTERN UNIV BOSTON MA DEPT OF CIVIL ENGINEERING
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This paper presents the results of a pilot plant investigation and design for achieving seasonal nitrification of a secondary trickling filter effluent. The municipal treatment plant in Milford, Massachusetts discharges into the headwaters of the Charles River, a class B stream. Consequently, the Commonwealth of Massachusetts has required a nitrified effluent, phosphorus removal, and effluent filtration. Table 1 lists the present and proposed discharge limitations formulated by the U.S.E.P.A. and the Massachusetts Division of Water Pollution control.