In February 2017 took place the installation of a complex of mechanical sludge dewatering based on the Multi-disc Screw Press Dehydrator MDQ-353C at the WWTP (Savannah, GA, USA).
Our client is a global manufacturer of food ingredients, pharmaceuticals and food. The Company’s plants are located on six continents. Representatives of the company turned to the Esmil USA Company with the problem associated with sludge dewatering. According to the technological scheme, the stage of mechanical dewatering goes through a mix of sludges after MBBR and DAF. The Client needed to decrease the sludge volume for transportation by 10 times.
Specialists from the ESMIL Company have proposed a solution based on the Dehydrator MDQ-353(C) ESMIL, polymer feeder and Control cabinet for the complex.
Under screw rotation, the movable rings move parallel to the fixed rings to provide self-cleaning of the filter pores. In addition, the external drum surface is flushed by water from nozzles of the flushing unit. The drum exit is partially overlapped by the movable plate or back pressure plate. By changing the distance between the drum exit and the divider, the counter pressure on the sludge moving inside the drum can be regulated, which influences the percentage of sludge dewatering. The dewatered sludge is fed into the receiving hopper of the transporter by gravity feed.
Startup of Dehydrator was successful. Achieved DS concentration – 20% DS