The aqua-separator helps in removing the excess water from raw material . The depithed/ deducted & washed material is then squeezed into screw press. The water so obtained from aqua—separator &screw press is collected & screened in B-2 thickener for reuse again in pulper.
Water is a key element in the production of paper. Pulp and paper mill use water as a medium to transport fibers, energy and chemicals during the production of paper. The major areas of water consumption in a pulp and paper mill include raw material cleaning, pulp mill, showers on washers, paper machine and boilers. Over the years the mills abroad through adoption of modern fiber line technologies have been successful in reducing the consumption of water in paper making process through adoption of modern fiber line technologies as well as techniques for increased recycling leading to minimal discharge of effluent.
However this has not been so in case of Indian pulp & paper mills as a result compared to developed countries the water consumption in Indian paper industry is significantly higher.