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Three different deep-seawater (DSW) treated by means of reverse osmosis (RO DSW), electrodialysis (ED DSW) and 10% (v/v) dilution with ddH 2 O (10% DSW) were as treated groups, while distilled water (NDW) was the control * Chang, M.H. and Tzang, B.S. contributed equally as co-first authors in this paper. 8 Corresponding group. Body weight changes, feed and water intakes of high-cholesterol dietary mice were not (P < 0.05) influenced by drinking different waters. Although drinking ED and 10% DSW lowered (P < 0.05) serum cholesterol, triglyceride (TG) and non-high-density lipoprotein cholesterol (non-HDL-C) levels than NDW, the HDL-C/non-HDL-C ratio was only improved (P < 0.05) in the ED DSW group. These hypolipidemic effects of ED and 10% DSW might result from more (P < 0.05) fecal cholesterol/TG outputs compared with NDW and RO DSW groups. The rich K + and Mg 2+ contents, as well as better Mg 2+ /Ca 2+ ratios in ED and 10% DSWs may counteract increased blood pressures of highcholesterol dietary mice due to a higher hypertensive mineral, Na + . PRACTICAL APPLICATIONSDeep-seawater (DSW) was announced to own several health benefits commercially. However, only few researches were available, and the results were inconsistent. Because DSW is rich in minerals which result in high hardness, DSW is necessary to be treated by means of reverse osmosis (RO DSW) and electrodialysis (ED DSW) technologies, and 10% (v/v) dilution (10% DSW). This study aims to investigate the effects of three treated DSW (RO DSW, ED DSW and 10% DSW) on blood lipids and pressures in highcholesterol dietary mice. Our results demonstrated that ED DSW showed the cardiovascular health effects, such as hindrances of the dietary-induced evaluation of total cholesterol, triglyceride and non-high-density lipoprotein cholesterol (non-HDL-C), as well as improvement of HDL-C/non-HDL-C ratio, when compared with RO and 10% DSW. Therefore, ED DSW might be suggested as an ingredient of hypolipidemic health food in some niche markets. 242 M.-H. CHANG ET AL. 244 M.-H. CHANG ET AL.

Chemical-mechanical polishing (CMP) is currently one of the main technologies used by wafer plants in the semiconductor industry. Normally, a large amount of de-ionized water should be used to wash out the abrasives adhered to the surface of wafers during the grinding process. Therefore, CMP wastewater not only has a great quantity but also contains very small size of suspended solids. Generally, these suspended solids would not settle. This phenomenon results in a low visibility of CMP wastewater. To solve this problem, a study on electrically enhanced crossflow microfiltration of CMP wastewater was conducted. Normally, the membrane of traditional dead-end filtration is easily blocked by the filter cake resulting in a small flux of filtrate. Therefore, the form of crossflow filtration (CFF) is used to reduce the blocking of the membrane. Furthermore, if CFF is accompanied by an external electric field, the negatively charged suspended solids in wastewater would move toward the positive electrode. Meanwhile, the flux of filtrate would increase. In this investigation, CMP wastewater was obtained from a wafer plant and characterized by various standard methods. Before testing, the CMP wastewater was pre-filtered using a 1.2 microm pore size filter. Then it was operated by a crossflow microfiltration (0.1 microm pore size) system under an appropriate crossflow velocity, filtration pressure, and electric potential. The filtrate was also characterized by various standard methods. Experimental results show that the filtrate has a turbidity of zero value. Thus, the filtrate could be reused for other purposes. However, the suspended solids of the CMP wastewater would be concentrated by this method. Therefore, the recovery of the suspended solids would be worth considering.

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