DEALING IN SLUDGE PROCESSING: DEWARTERING,STERILISING DEODORISE,DRYING ADDING CORN ATALK AND WHEAT STRAW MIXING AND REFINE : NEW ENERGY PRODUCT.BIOFUEL:WOOD CHIPS AND SAWDUST AS RAW MATERIAL THEY WILL BE MIXED, DRIEDCOMPRESSEC INTO THE CHALK SHAPE UNDER LOW TEMRERATURE.