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Emulsification

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  • Global competition has caused the US textile industry to modernize and become cost competitive because developing nations have discovered that exporting textile products to the USA is an attractive way to enhance their economic growth. Their low labor costs have pressured domestic producers into replacing labor intensive manufacturing equipment with automated, sophisticated, efficient, hightechnology machinery. The industry has focused on reducing costs, improving quality and developing quick turnaround and response scenarios.

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  • Pollution control policy is fundamental for our analysis. In 1982 the central government imposed a system of levies on air pollutants, on total wastewater, and on the concentrations of three pollutants contained in wastewater: total suspended solids, chemical oxygen demand, and other solids. The first two are characteristic of the paper industry. The levy rates were reassessed in 1989 and increased in 1992. Wang et al. (1996) examined the effect of these charges on the effluents on the general manufacturing sector. They found the expected emission-reducing effect.

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  • In this study, 26 Pseudomonas spp. were isolated from a stream polluted by factory waste and from petroleum-contaminated soil. The surface tension (ST) of the cultures was used as a criterion for the primary isolation of biosurfactant-producing bacteria.

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