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Description tion ] P Tracy Material Recovery Facility and Transfer Station Expansion 30703 S. MacArthur Drive, Tracy, Caftmia 95377 be thrown away, the used filter media can be simply placed into the fuel hopper and consumed. Power Generation: The power units are based on a spark-ignited engine Genset. Depending on the model chosen, the engines are capable of providing up to 1 mega- watt (net) operating on syngas. The applicant will customize to allow syngas carburetion for this engine and provide standard paralleling switchgear for electrical output with up to 1 mega-watt/hour. The applicant plans to utilize a CAT 3516 or the Cummins 1710 as the most attractive engine options. These engines also have unique features of better fuel economy, better emissions, durability, and extended oil and filter change period. Both CAT and Cummins engines have been designed to combine compact size, low emission levels and excellent performance characteristics of high-speed technology with the medium speed benefits of water-cooled exhaust valve seats, steel-crown pistons & combustion control. A Bay Area Air Management Quality District Permit to Operate will be obtained. The San Joaquin Valley Air Pollution Control District has issued a Permit to operate for similar biomass gasification unit. Bio-char and ash handling: Bio-char & ash is removed from the conversion chamber using pumped slurry. Scrubbed particulate is combined with the bio-char stream. A closed water loop is used for cooling as well as to provide a seal to the bottom of the gasifier. Water slurry level is maintained in a tank and pumped to an automated filter. The automated filter is typical for river sludge treatment and separates the solids from the recirculated water. The char byproduct, also called biochar, is separated out using a special mechanical separator for resale as a soil amendment, sequestering carbon in the ground in solid form for up to 1,000 years. Water leaving the filter is passed through a final stationary filter prior to heat exchange. The scrubbing water is absorbing heat from the product gas and must be cooled in a cooling tower prior to returning to the closed-loop scrubber. Material Storage .E There are numerous storage areas for recovered and recycled material on-site: • Baled storage on paved surfaces outside of the MRF/TS building. • Baled Stroage under the proposed Canopy • Storage areas for the higher commodity priced baled materials will be located inside } the expansion area of the MRF/TS building. Finished compost on the finished compost storage stockpile area at the north end of i the compost pad. ' • Processed inert products, including % inch AB specification or 318 inch utility sand, at the Inert Processing Areas. t Recovered wood, metal, drywall, white goods, and residual debris adjacent to the C&D i Processing Area. 27 170.18.03 CUP Project Description 050710