AN ASSESSMENT OF MULTI-PLATE SCREW PRESS IN DEWATERING PROCESS OF SLUDGE TREATMENT (THE BEST OPTION?).

Sludge dewatering is a crucial step in sludge treatment because it determines the amount of and quality of sludge produced. There are many mechanical methods of dewatering sludge. The paper aims at analyzing three major methods based on principle of operation and possible optimization techniques then compares it to multi-plate screw press which is being adapted as a model that aims at solving problems that arise from usage of the fore mentioned equipment while clearly offering energy efficient solutions. Ultimately the question of the best option can be answered after carefully analyzing available literature on other used equipment. The development of Multi-plate Screw Press which is adaptable to deal with sludge from a variety of industries such as petro chemistry, petrochemical chemical fiber, paper-making, pharmaceuticals, leather, food and beverage etc. It is easy to operate and more power efficient. It utilizes the principles of dewatering force-water homo-direction and thin-layer dewatering. The machine allows automatic continuous operation of sludge flocculation thickening dewatering and filtrate discharging. It is equipped with moving rings that are self-cleaning it utilizes very little power as it relies on a low inner pressure of the filter chamber. Moreover the problem of noise pollution is eradicated as well as space as this technology can be connected directly to the aeration tank or the secondary sedimentation tank.