期刊
MEMBRANES
卷 12, 期 10, 页码 -出版社
MDPI
DOI: 10.3390/membranes12100923
关键词
agricultural drainage water; RO membrane; desalination; evaporation; economics; ZLD
类别
资金
- Science and Technology Development Fund, STDF, Ministry of Scientific Research, Egypt [41563]
The study presents a zero liquid discharge agricultural drainage water (ADW) desalination system with a 98% water recovery rate and the recovery of 245,000 tons of salt, with a water production cost of USD 0.46 per cubic meter.
Agricultural drainage water (ADW) represents a potential source for fresh water after receiving appropriate treatments to satisfy the water quality requirements. Desalination of ADW with medium salinity and moderate contamination with organic and inorganic chemical pollutants could provide a techno-economically feasible approach for facing water scarcity in arid areas. The current work presents a conceptual zero liquid discharge ADW desalination system proposed to treat 300,000 m(3)/d. The system is based on pretreatment to remove impurities harmful to desalination by staged reverse osmosis (RO) membrane. The brine from the last RO stage is treated via thermal vapor compression followed by evaporation in solar ponds to recover more fresh water and salts of economic value. The essential technical features of the proposed system components are formulated. The proposed system components and its technical and economic indicators are deduced using available software for water pretreatment, RO membrane, desalination, thermal desalination, and solar evaporation ponds. The system provides total distilled water recovery of about 98% viz. 294,000 m(3)/d in addition to recovered salts of 245,000 t/y. The net cost of water production amounts to USD 0.46 /m(3). The environmental considerations of the system are addressed and advantages of applying zero liquid discharge system are elucidated.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据