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Orange County <br />March 23, 2016 <br />Page 10 of 11 <br />13 <br />universally included in MWP systems. Plastic bottles of #1 PET and #2 HOPE are also relatively easy to <br />recover, either by optical units or manually, and have a good resale value. Other recyclable plastics and <br />fibers such as clam shells, film bags, cardboard, newspaper, and office paper have also been recovered at <br />certain facilities. However, the equipment and effort to recover these items is greater than with metals <br />and bottles, and the percentage of recovery can be much less, especially if robust source <br />separation /recycling is already in place in the County and its incorporated jurisdictions. For instance, <br />upwards of 90% of the total metals and bottles in the waste stream can be recovered in modern MWPF <br />with proper magnets and optical units. However, fiber recovery is generally between 50% and 70% of the <br />total fiber in the stream, and can be less depending on a number of factors. <br />The final development of the goals of the facility would be to establish what will be done with the rest of <br />the material outputs and what the systems throughput will be. This will also dictate the equipment needed <br />for processing and clean -up of the other streams. For instance, for the SRF /RDF produced, is there a size <br />requirement and does PVC need to be removed to keep the chlorine content low? For the fines and <br />organics fraction, is composting or Anaerobic Digestion an option or would this also be used as a fuel? <br />And finally, how much incoming material will be processed? Most facilities will rate the equipment system <br />in tons per hour (PTH) which will ultimately dictate how many tons can be processed in a year. For <br />example, a 50 TPH system running five days a week with two shifts (14 hours of runtime per day) can <br />process approximately 182,000 tons per year (TPY). Sizing the system appropriately for the potential <br />future incoming material is important, but so is sizing for efficiency. Too large a system is not cost effective <br />to operate. Below, in Figure 4 and Figure 5, are layouts for two different MSW processing systems with <br />different goals and levels of automation to illustrate the potential range (and complexity) of these <br />systems. <br />NAND R E" <br />cxxx 10 GBB/C15099 -02 <br />G 6 euexr <br />oxeu�ix <br />