1. Purpose: The City of Branson is soliciting written bids for activated carbon used in odor control towers at the City’s wastewater treatment facilities. 2. General Requirements: 2.1.The city has a need to purchase approximately 46,575 lbs of granular activated carbon in super sacks. Total quantities ordered per shipment shall be in equal proportion to the packaging containers provided by the supplier, not to exceed the approximate quantity specified. 3. Technical Requirements: 3.1. The activated carbon shall be virgin (i.e., not reactivated) and shall not be impregnated or catalytically modified. The activated carbon shall be derived from acceptable raw materials including lignite coal, sub-bituminous, or bituminous coal. The activated carbon shall be visually free of clay, dirt and deleterious material. 3.2. The activated carbon supplied shall be suitable for continuous removal of H2S from air, and other odor causing compounds such as mercaptans, indoles, and skatoles found in vapors emitted by wastewater or various treatment processes. 3.3. The activated carbon shall meet the minimum standards and performance criteria regarding material specifications and physical properties. These performance criteria shall be evaluated prior to bid award based on representative samples of the proposed material submitted to the City and/or Supplier lab reports. Failure of samples to meet the performance criteria shall result in rejection of the activated carbon and in the removal and replacement of any installed materials at no cost to the City. 3.4. The activated carbon to be furnished shall have adsorptive and physical characteristics as indicated below:
