The Study of Rotational Ultrafiltration System for Recovery of Spent Cutting Oil from Solar Photovoltaic Cell Manufacturing Process

Chi-Yuan Shih; Sue-Huai Gau; Chi-Chang Kuo; Chang-Yun Huang; Sheng-Wei  Kuo

doi:10.6180/jase.2016.19.1.09

The Study of Rotational Ultrafiltration System for Recovery of Spent Cutting Oil from Solar Photovoltaic Cell Manufacturing Process

Chi-Yuan Shih This email address is being protected from spambots. You need JavaScript enabled to view it.¹, Sue-Huai Gau¹ , Chi-Chang Kuo² , Chang-Yun Huang³ and Sheng-Wei Kuo³

¹Department of Water Resources and Environmental Engineering, Tamkang University, Tamsui, Taiwan 251, R.O.C.
²New Century Membrane Co., Ltd, Taichung, Taiwan 407, R.O.C.
³Abontech International Co., Shinchu, Taiwan 300, R.O.C.

Received: May 15, 2015
Accepted: October 14, 2015
Publication Date: March 1, 2016

Download Citation: ||https://doi.org/10.6180/jase.2016.19.1.09

ABSTRACT

The main problems of recovery cutting oil from spent waste are high viscosity of cutting oil and high content of nano-size particle. This study combined an innovative rotational circular-plate ultrafiltration membrane filter with a scraping device to recycle the cutting oil and remove particles fouling cake attached to the membrane surface, and was able to maintain cutting oil filtrate flux above 6.65 l/m²/hr. Also, the proposed process is the practical solution for materials separation between highly viscosity liquid and fine particles even nano-size. The results show the filtrate of ultrafiltration membrane could meet the reuse requirements of less than 0.03% solid content. Analysis of blended oil characteristics under different blending ratios was conducted, showing the optimum blending ratio of recycled oil to new cutting oil was 6:4. The final production cost can be reduced over 27.4%. The process can achieve waste reuse ratio of greater than 77.2%.

Keywords: Rotational Ultrafiltration, Diethylene Glycol, Recycle, Silicon Sawing, Cutting Oil

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