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Comment Water Treatment

Water-saving strategies for the CPI

By Y.A. Liu, Virginia Polytechnic Institute and State University |

Reducing freshwater consumption and wastewater discharge at large petroleum-refining and chemical-production facilities can lower costs, while allowing plants to expand production capacities without having to secure additional freshwater resources and without having to enlarge their wastewater treatment plants. The key approaches to saving significant amounts of water are: improved water management, implementing process changes that maximize water reuse and minimize wastewater generation; and a corporate-wide focus on the “Four-Rs” — regeneration, recycling, reuse and replacement. This article describes the methodology used in several water-saving projects led by the author at large chemical and petroleum refining facilities in the Asia-Pacific region, as well as proven water-saving technologies implemented. In addition to improved water management and better use of water-saving technology, the ultimate success of water-saving projects at these large facilities depends on strong support from senior-level corporate executives and production managers, corporate-wide training of project teams and a broad effort to promote corporate-wide enthusiasm for water savings. Water-saving Projects During a sabbatical leave from…
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