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Pacific Paperboard Products <br /> Page two <br /> 1 . Listings of data from the inventory. <br /> 2. Sketches showing the process line in the feed, pulping <br /> and cleaning operations. <br /> 3. Results of evaluations related to solid wastes and the <br /> French Camp disposal site. <br /> 4. Conclusions and recommendations. <br /> Present report to the City of Stockton and provide support as requested by Pacific <br /> Paperboard Products. <br /> Process Description <br /> The Stockton plant uses two types of raw. material feedstock for the production of <br /> paper fibre. Both types of feedstock are recovered waste paper, with one process <br /> line handling dirty paper (baled corrugated boxes, wrappings, etc.) and the other <br /> line handling clean paper coming from broken stock and rejects related to paper <br /> product production runs. Figure 1 shows the principal components of equipment <br /> and materials for each processing line. <br /> Centri-sorter line. The centri-sorter line is the processing line which handles and <br /> cleans dirty paper feedstock. The feed, pulping and cleaning operations are shown <br /> In a process diagram on Figure 1. The sequence of operations can be followed by <br /> referring to Figure 1 . First, the feedstock is pushed from the charging floor into <br /> the centrifugal pulper. Water is added and the paper bales are broken and pulped. <br /> Physical inspection of the broken bales and flotables in the pulper was performed <br /> on two separate days, October 11 , 1977, and October 31 , 1977. The pulper was <br /> operating on both days: Materials in the pulper included paper, water, and occasional <br /> articles of styrofoam plastic, wire and compacted beverage cans. The dense wastes <br /> pass directly into the junk tower. An overhead crane and bucket is used to remove <br /> wastes from the junk tower and deposit them in the waste storage container. The. <br /> pulp from the pulper is passed through a turbo-separator to extract low density wastes. <br /> These low density wastes contain both useable fibre and wastes which are separated <br /> further after passing onto a vibrating screen. Fibre accepts from the screen are <br />