Influence of draw solution type and properties on the performance of forward osmosis process: Energy consumption and sustainable water reuse
Influence of draw solution type and properties on the performance of forward osmosis process: Energy consumption and sustainable water reuse
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DOI：
10.1016/j.chemosphere.2019.05.241
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发表时间：
2019-10-01
期刊：
影响因子：
8.8
通讯作者：
AlNouss, Ahmed
中科院分区：
文献类型：
--
作者：
Gulied, Mona;Al Momani, Fares;AlNouss, Ahmed
采用单组分和多组分肥料作为正向渗透(FO)的引水溶液(DS)，从合成溶液和海水溶液中提取优质水，消除了DS再生的需要，降低了操作能量。研究了DS的种类、浓度、循环流量对膜生物滤池的水通量(WF)、比水通量(SWF)、水回收率(%W-回收率)、反盐通量(RSF)和截盐率(%R)的影响。结果表明，单肥提取液(SFDSS)的水分利用率(WF)、钨回收率(%W)和相对吸水率(RSF)分别为2.57L/m(2).h、17%和46%，高于多组分提取液(MCDS)，分别为4.43WF/m(2).h、W回收率(30%)和RSF(60%)。DS浓度越高，SWF和W回收率越高，消耗的能量越少。浓度为200g/L的MCDs的SWF为14.0~10.4kW/m(2)h，能耗为0.312 kW/hm(3)，而浓度为100g/L的MCDs为10~7.8kW/m(2)h和0.23kW/hm(3)，增大循环流量对WF的影响最小，节能可达35%。纯净水使用液体肥料提取，利用独特的FO质量传输特性，平衡了营养需求和水质参数，从而支持了水培产业。(C)2019爱思唯尔有限公司。保留所有权利。
Single and multi-component fertilizers were used as a draw solution (DS) in forward osmosis (FO) to produce high-quality water from synthetic and seawater solution, eliminating the need for DS regeneration and reducing the operational energy. The effect of DS type, concentration, circulation flow rates on the FO water flux (WF), specific water flux (SWF), percentage water recovery (%W-recovery), reverse salt flux (RSF) and percentage salt rejection (%R) were studied. The results showed that single fertilizer draw solution (SFDSs) produced higher WF (4.43 L/m(2).h), %W-recovery (30%) and RSF (60%) in comparison with multi-component draw solution (MCDS) with WF, %W-recovery and RSF of 2.57 L/m(2).h, 17% and 46%, respectively. DS with higher concentration produced the highest SWF and %W-recovery and consumed less energy. MCDS with concentration of 200 g/L showed SWF in the range of 14.0 to 10.4 L/m(2)h and energy consumption of 0.312 kW/h m(3) in comparison with 10 to 7.8 L/m(2)h and 0.23 kW/h m(3) for MCDS with concentration of 100 g/L. Increasing the recirculation flow rate showed minimum effect on WF and up to 35% energy saving. Pure water extracted using liquid fertilizers utilizing the unique FO mass transport properties balanced nutrient requirement and the water quality parameters, thereby sustaining the aquaponics industry. (C) 2019 Elsevier Ltd. All rights reserved.