domestic wastewater treatment plant SINGULAIR (1.894l - 5.681l)
6Pages

The contractor shall furnish and install one complete Singulair Bio-Kinetic wastewater treatmentsystem with all necessary parts and equipment as described in the following specifications. Treatment of the domestic wastewater shall be accomplished by the extended aeration process with non-mechanical flow equalization, pretreatment of the influent, and filtration of the final effluent. The treatment system shall provide primary, secondary, and tertiary treatment of the wastewater flow, and if required, chlorination and dechlorination of the effluent prior to discharge. All treatment processes shall be contained within reinforced precast concrete tankage meeting the requirements of ACI Standard 318. The wastewater treatment system shall be a Singulair Model 960 as manufactured by Norweco, Inc., Norwalk, Ohio, USA. Systems utilizing fiberglass, steel, or plastic tankage are subject to floatation when dewatered and shall not be considered for this application. > SPECIFICATIONS The wastewater treatment system shall include precast concrete tankage providing separate pretreatment, aeration and final clarification chambers. The tankage shall be furnished with cast-in-place inlets, submerged transfer ports, aerator mounting casting with removable cover, cast-in-place molded plastic vent assembly, cast-in-place outlet coupling and Bio-Kinetic system mounting casting with removable cover. Principal items of electro-mechanical equipment supplied with the Singulair system shall be a 1725 RPM mechanical aerator, UL Listed Service Pro electrical control center with MCD technology, Bio-Static sludge return and Bio-Kinetic tertiary treatment device for flow equalization and final filtration of system effluent. >

Total holding capacity of the system shall provide a minimum of 48 hour retention of the daily flow. The pretreatment chambershall provide at least 18 hour retention, the extended aeration chamber shall provide at least 24 hour retention, and the clarificationchamber shall provide at least 6 hour retention. The non-mechanical flow equalization device shall increase each individual chamber and total system retention time in direct proportion to loading. Design of the system shall include a compartmented tank and non-mechanical flow equalization device to insure successful treatment...

FINAL CLARIFICATION CHAMBER > The final clarification chamber shall consist of 5 functionally independent zones operating together to provide satisfactorysettling and clarification of the equalized flow. An inlet zone shall be provided and shall dissipate transfer turbulence at the flowinlet of the clarification chamber. Its performance shall also eliminate turbulence in other zones of the clarifier. Liquid shall behydraulically displaced from the inlet zone to the sludge return zone. Hydraulic currents shall sweep settled sludge from the hoppered walls and return these solids via the inlet...

SERVICE PRO > ELECTRICAL CONTROL CENTER > The Service Pro electrical control center with MCD technologyshall provide Monitoring, Compliance and Diagnostic functions for the Singulair treatment plant using a microprocessor based platform. The Service Pro control center shall contain nonvolatile memory to prevent loss of programming in the event of a power failure. The pre-wired controls shall be mounted in a lockable NEMA rated enclosure designed specifically for outdoor use. Each Service Pro control center shall be a UL Listed assembly and shall include a time clock, alarm light, reset...

A Bio-Kinetic system shall be installed in the mounting casting(s) above the clarification chamber. Each Bio-Kinetic systemshall provide non-mechanical flow equalization through all plant processes including pretreatment, aeration, clarification, tertiaryfiltration, chlorination and dechlorination. The assembly shall be supplied with locking lugs and removable moisture/vapor shieldand shall consist of a design flow and peak flow micronically molded filter, baffled perimeter settling zone, flow distribution deck, lifting handles, level indicator, adjustment lugs, optional chlorination feed...