Review and Effect of Pulp Consistency Output of the Twin Roll Press with Effluent Pollution by Mathematical Model

In paper industry، Twin roll press machines are utilized for recovering the dissolved materials resulting from the process of transforming wood into pulp and it''s efficiency has a considerable role in wasting resources and effluent pollution load. This research was performed for the purpose of showing the effective pulp consistency on efficiency of washing by using a mathematical model based on the pattern of simulating the System Engineering Analysis. The press function was analyzed according to the same principle. Based on the data of Mazandaran Wood and Paper Industries، the results show that in a fixed amount of production the washing efficiency of the twin roll press has a direct impact on the pulp consistency coming out of the related press. The consistency rise of about 10% of output pulp، increases 10% washing efficiency and reduces about 35% of not recovered dissolved materials، this represents a decrease in effluent pollution load.