反渗透
海水淡化
微咸水
电渗析
卤水
环境科学
资本成本
正渗透
环境工程
废物管理
体积热力学
制浆造纸工业
工艺工程
化学
膜
工程类
盐度
生态学
生物化学
物理
有机化学
量子力学
电气工程
生物
作者
Dipak Ankoliya,Anurag Mudgal,Manish Kumar Sinha,Vivek Patel,Jatin Patel
标识
DOI:10.2166/aqua.2023.088
摘要
Abstract Hybridization of electrodialysis (ED) and batch reverse osmosis (BRO) process is used to reduce the brine volume and water production cost. The ED process has the benefit of high water volume recovery in brackish water desalination, while reverse osmosis can produce pure water at a low production cost. Here, a simple hybrid process layout is preferred in which the ED process is kept in the reject stream of the BRO process and permeate from both ED and BRO is mixed. Recovery of the ED process is kept at 70% which can decide the blending ratio of ED and BRO permeates. The capital cost and operating cost of ED and BRO processes are used to calculate water production cost. The water production cost from the hybrid ED–BRO process is found to be 0.22 $ m−3 of freshwater when the feed concentration is 1,100 ppm. The cost increases from 0.20 to 0.34 $ m−3 with feed concentration from 1,000 to 2,000 ppm. In the cost, a major portion comes from the capital equipment in which the highest contributor is the membrane for both ED and BRO processes.
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