DOCUMENT

SPEC - Centrifuge & Gravity Belt Polymer Testing 2005

  • YEAR CREATED: 2005
  • ENTITY TYPE: City/Township
  • TYPE OF DOCUMENT: SPEC - Specification
This document provides information about the requirements and specifications for polymer products to be used in the City of Bellingham, WA. The document states that if the product does not meet the appropriate standard by more than 10% during the contract period, the city has the right to terminate the contract. The vendor will be given the opportunity to suggest improvements or change products, subject to approval by city staff and at no additional cost to the city. The document also mentions that the city's existing centrifuge polymer storage and batching equipment is suitable for use with dry polymer only. In terms of delivery, polymer shipments should be received between 9:00 AM and 3:00 PM from Monday to Friday, excluding holidays. The vendor or delivery company must notify the Post Point Wastewater Treatment Plant at least 24 hours in advance of any delivery attempt. The city will accept dry polymer shipments in minimum quantities of 3,600 LBS and a maximum of 7,200 LBS, in 1,800 LB Super Sacks. Pallets will be non-returnable, and loose bag shipments will not be accepted. The city will place the order at least five working days in advance. The document also includes a Polymer Evaluation Formula, which calculates the polymer dosage cost factor. The formula takes into account factors such as polymer dosage, cake solids, capture percentage, and vendor bid price. The polymer dosage that produces the lowest overall cost multiplier will be utilized. Polymers that produce less than 94% recovery will not be accepted. The document also includes a bid form for the Polymer Dose Cost Factor, where various parameters such as feed sludge, cake percentage, polymer type, and feed rate need to be filled in. Overall, the document provides detailed information about the requirements and evaluation process for polymer products to be used in the City of Bellingham, WA.
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