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SECTION 5 - FILTER PRESS <br /> nru.re• <br /> -r <br /> F �rr'� CCn nt�/14Y/) <br /> JUI <br /> I <br /> I <br /> I <br /> I <br /> cr/nJr'i S:.r.,�iy F I F,;'Irn lei /Orc rGrm.7 ) ' <br /> C Cri/IPr1✓n /9us/rW,I.. b�t A <br /> FILn� Fe Lft f1OM'Ou.6,u.. <br /> �FOp/T V/FW <br /> FIGURE 3-9 FILTER PRESS FLOW DIAGRAM <br /> 5 . 1 Operation When the air diagram Wilden pump at the <br /> bottom of the sludge thickener tank <br /> operates , the heavy metal wastewater <br /> flows from the bottom of the sludge <br /> thickener tank to the filter press . <br /> The filter press filters the heavy metal <br /> through the filter element and the <br /> wastewater free of heavy metal flows <br /> back to equalization tank A for <br /> pretreatment. <br /> 5 . 2 Maintenance Route Freguency: Weekly <br /> Inspect and check ball shut-off <br /> valves , and filter press for leaks and <br /> damages . <br /> - Clean filter press . (FIGURE 3-9 ) <br /> 5 . 3 Filter Press Cleaning Procedure: <br /> A. To discharge the filter cake and <br /> clean the filter press . <br /> 1 .Close valve (A) before closing <br /> valves (E) and (F) . <br /> 2 .To wash the cake. Open valve (C) <br /> slowly about halfway. t 1/4 Turn. <br /> 25 <br />