Abstract

Theory and application of water and wastewater network optimization was researched borrowing ideas from water pinch technology. A new water system optimization method was advanced and a water system optimization model was built. The new water system optimization method was based on mass transfer model of water pinch technology, every operation used matched water of circle water and fresh water in turn. The water system optimization model included hypothesis, object function, terminal condition, pattern function and judgement guideline. Judgement basis of operation sequence and theoretical basis of selection of water source was put forward. The result showed that the fresh water reduction was 33.30% when the optimization method was used in a petrochemical water system with thirteen operations.

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