Iodide recovery and boron removal from thin-film transistor liquid crystal display wastewater through forward osmosis
作者： Hau-Ming Chang , Shiao-Shing Chen , Zhi-Sheng Cai , Wen-Shing Chang , Saikat Sinha Ray
DOI: 10.1016/J.JCLEPRO.2020.120587
关键词: Iodide 、 Boron 、 Cellulose triacetate 、 Forward osmosis 、 Membrane distillation 、 Membrane 、 Distillation 、 Materials science 、 Inorganic chemistry 、 Bromide
摘要: Abstract For the first time, simultaneous iodide recovery and boron removal from thin-film transistor liquid crystal display wastewater were achieved using forward osmosis because is a precious material toxic with 1 mg/L discharge standard in Taiwan. Cellulose triacetate composite aquaporin flat sheet membranes tested for different feed solution, pH levels, draw solution concentrations. The results indicated that membrane had high rejections (98.4% 98.3%, respectively) at of 11; however, concentration 600 mg/L, 9.8 mg/L was still present solution. Cationic surfactant cetyltrimethylammonium bromide used to enhance efficiencies. Both efficiencies increased 99.9% 0.5 mM bromide, only 0.64 mg/L In addition, negligible flux reduction observed process presence bromide. A distillation system concentrate purify MgCl2 Thus, hybrid osmosis-membrane can be applied industry.
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