Effluent treatment
Water management in paper and board industry

Paper mill effluents are mainly composed of :

• process water overflow and drips around the paper machine;

• water from glands, pumps, mixers, refiners and purifiers;

• machine head purification rejects ;

• pressing water wastewater from pasta preparation ;

• washing water from kitchens and sleeping quarters;

• sludge dewatering water.

These flows are collected by a network of gutters and sent to the plant via a lift pump. The resulting effluent mainly contains suspended matter such as fibers, cellulose fines, mineral fillers, as well as dissolved and colloidal organic and inorganic matter. Washing water from kitchens and bedding stations contains residues...