Specifications include, but are not limited to: The City of Soldotna (City) is soliciting proposals from qualified equipment manufacturers for a replacement biosolids dewatering system for the City of Soldotna Wastewater Treatment Plant (WWTP). The City is seeking proposals from qualified suppliers of centrifuge dewatering equipment to fabricate and furnish centrifuge equipment capable of meeting the City’s sludge dewatering needs. Proposals received will undergo comparative evaluation against other qualified proposers. After all qualifying proposals are evaluated by the City, the highest scoring proposer will be identified, and that equipment will serve as the basis of design in a design-bid-build project to install new centrifuge dewatering equipment. The City is seeking proposals from qualified suppliers of centrifuge dewatering equipment to propose suitable centrifuge equipment for the City’s sludge dewatering needs. The selected centrifuge will form the basis of design for a competitively bid centrifuge installation project. Furnish centrifuge equipment that meets the performance criteria identified below: Number of Centrifuges 2 Desired Feed Solids Capacity (Per Centrifuge) 250 Dry Solids Pounds per Hour (Per Centrifuge); Operating Range of Feed Solids Concentration 0.7-1.1 Percent Total Solids; Desired Feed Sludge Flow Rate 38-56 Gallons Per Minute (Per Centrifuge); Minimum Centrifuge Cake Solids Concentration 15 Percent Total Solids Minimum Solids Capture 92 Percent of Feed Total Solids; Desired Minimum Processing Rate Turndown 2:1 Ratio of Turndown from Maximum Capacity Rate; Maximum Polymer Usage 30 lbs Active Dry Polymer per Dry ton of feed solids; Allowable Noise Level While Operating at Any Operating Condition 89 Decibels as dBA at 3 feet;
