A Novel Approach for Design and Retrofit a Flexible Water Treatment Network in Pulp and Paper Industry


M.A. Mousa*,
Technical office section head for Chairman and CE&O of Alexandria National Refinery & Petrochemical Company (ANRPC) Alexandria – Egyptian Petroleum Ministry, Egypt.

M.E. Elsokary,
Petroleum Research Institute, Cairo, Egypt.

G.M. Abdeallaem
Suez University, Faculty of Petroleum & Mining Engineering, Petroleum Refinery & Petrochemical, Engineering Department, Suez, Egypt.


The Egyptian Pollution Abatement Project (EPAP) aims for developing five Egyptian sectors, which are as follows, Food industry, Pulp and paper industry, Metallurgical industries, Engineering Industry and Textile Industry. The paper manufacturing process is extremely water intensive, fresh water consumption reduction has a lot of advantages either on the environment & economic benefits such as, decreasing heating fresh water energy costs, in addition to reducing the pollution load via reducing the volume of effluent & thus lowering the cost of processing municipal waste and recovering usable fabric. However, a risk of reducing the usage of fresh water, like contaminants build – up in the water recycling loop, which affects the product quality. One of Egyptian paper and pulp companies, which produces 27 MT per a year of writing & printing paper had been chosen as a case study for the industrial sector. Water demand for the mill achieved by combination of both of fresh water & regenerated process water, that’s to remove all suspended solids, which are present in water streams and allows water usage in several purposes, such as, chemical dilution, vacuum pump seal water, etc. The study goals to propose a plan for reducing of fresh water while preserving product quality, meeting process needs via constructing an optimization program (GAMS) to reduce fresh water demand, verify the model with the material balance results and studying the effect of changing the quality of regenerated water with fresh water demand.