The Cellulose and Paper Industry Wastewater Treatment

Abstract

A large amount of water is used in the cellulose and paper industry, which causes the production and release of the industrial wastewater which can, due to the amount and loads of contaminants, significantly affect the quality of the water environment if the adequate meassures for the rational use and purification of the same are not implemented and continuously applied. These wastewaters have a large organic contamination (BOD5 and COD), a large sulphite concentration, phenol and tannin (lignin) and chemicals that are used in the process of cellulose and paper production. The treatment of the wastewater from the cellulose and paper production in "Natron–Hayat" Maglaj after the realization of the wastewater disposal project done in 2007 is analyzed in this paper. This company has accomplished the project of recovery and modernization of the wastewater purification system towards the rational use and efficient purification of the industrial waters. With the device efficiency analysis for the wastewater treatment it was concluded that the purification efficiency level is acceptable according to the emissions standards issued by the regulations for the terms of wastewater release into the natural recipients and public sewerage system. Thereby, this company has significantly contributed to the water resources protection, ie river Bosna, which is a recipient of the wastewaters released from this company's plant. However, it would be good to analyze the possibility of the optimization of this device in oreder of exploiting the biogas as a potential fuel, adn sludge as a potential fuel and for other purposes.