This is a kind of filter that is highly used in Sewage Treatment Plants for separating out the liquid and the solids. This is also known as the Sludge filter or Sludge remover.
Sludge is a solidified mixture of water and solids which needs to be filtered or separated out to carry on an operation. Liquid gets collected as it flows through the screen and can be reused after that which saves a whole large amount of water and increase the productivity of the Sewage Treatment Plant.
It can be easily used in place of the belt press, centrifuge, or filter paper. A very simple device that follows very slow gravitational drainage and they are also used for material that is difficult to press or those which are highly packed together.
1. What is the benefit of Screw Pass?
The Screw pass mainly separates the biological sludge which is a mixture of water and solid with the help of gravitational force so it increases the productivity of STP.
2. Can the filtered water from the screw pass be reused?
Absolutely the water which gets filtered from the sludge can be used again. It saves a very large amount of water from the solidified mixture i.e. Sludge.