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5971179 
Journal Article 
Application of cleaner production technology in chemical industry: A near zero emission 
Abou-Elela, SI; Haleem, HA; Abou-Taleb, E; Lbrahim, HS 
2007 
1 
Journal of Cleaner Production
ISSN: 0959-6526
EISSN: 1879-1786 
15 
18 
1852-1858 
English 
WOS:000249770100013 
The main objective of this study is to investigate and evaluate opportunities for implementation of pollution prevention and waste minimization in a chemical industrial company producing poly sulfonated naphthalene formaldehyde which is used as a super plasticizer for concrete. Environmental problems encountered were mainly the highly polluted wastewater and a semi-solid cake containing considerable amount of the final product. Possible modules for remedial measures and their cost estimation were investigated. The proposed remedial modules included recycling of retained water discharge in filter press, recycling of washing water of reaction vessels (reactors), closed circuit cooling system for high-pressure pump, good housekeeping through control of leakage of raw material, products and water and finally utilization of retained residual product from the solid waste. The implemented pollution control measures proved to be cost effective and have short payback periods. Also, minimization of the hydraulic and organic loads in the final effluent was achieved. 
chemical industry; pollution prevention; poly sulfonated naphthalene formaldehyde; utilization of solid waste; cost estimation