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Comparison of Hollow-Fiber and Spiral-Wound Ultra-Low Pressure Membrane Technologies on a Brackish Ground Water 微咸地下水上中空纤维和螺旋缠绕超低压膜技术的比较
发布日期: 1999-01-01
这两种不同膜结构的测试最近在佛罗里达州萨拉索塔市的反渗透水处理厂进行。该市拥有并运营一座12 mgd的水处理设施,该设施由离子交换组件和反渗透系统组成。在萨拉索塔反渗透水处理厂工艺室内,设计、建造并安装了两个中试规模的试验设施,并将其安装在现有的膜工艺装置上。减压阀用于控制先导试验撬块的压力。中空纤维膜由杜邦公司(R)提供,采用新的双筒(TM)配置。根据《安全饮用水法案》信息收集规则的要求,螺旋缠绕试验撬块设计为两级系统。 中空纤维和螺旋缠绕膜技术都能产生相对于硫酸盐和总溶解固体的高质量处理水。这两种技术都能够实现75%的水回收率,然而,中空纤维结构的压力要求大约是螺旋缠绕技术的两倍。空心纤维技术在70%回收率下的电力成本估计为0.34美元/千克铝,而螺旋缠绕技术为0.13美元/千克铝。包括3个参考文献、表格和图表。
The testing of the two different membrane configurations was recently performed at the City of Sarasota's Reverse Osmosis Water Treatment Plant located in Sarasota, Florida. The City owns and operates a 12 mgd water treatment facility, which is comprised of an ion-exchange component and reverse osmosis system. Two pilot-scale testing facilities were designed, constructed and installed onto an existing membrane process train in the Sarasota reverse osmosis water treatment plant process room. Pressure reducing valves were used to control pressure to the pilot test skids. The hollow-fiber membranes were provided by DuPont(R) using their new Double Cartridge (TM) configuration. The spiral-wound test skid was designed as a two-stage system per the requirements of the Safe Drinking Water Act Information Collection Rule. Both hollow-fiber and spiral-wound membrane technologies produced high-quality treated waters relative to sulfate and total dissolved solids. Both technologies were capable of achieving 75% water recovery, however, pressure requirements for the hollow-fiber configuration was approximately double that of the spiral wound technologies. Power cost at 70% recovery was estimated at $0.34/kgal for hollow-fiber technology as compared to $0.13/kgal for spiral-wound technology. Includes 3 references, tables, figures.
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发布单位或类别: 美国-美国给水工程协会
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