目前進行之研究題目包括：

水及廢水之物理化學處理程序

1. 半導體業與光電業廢水處理與回收

2. 工業廢水中磷回收技術

3. 藻類分離技術

污泥的處理與處置

1. 污泥之調理與脫水

2. 污泥毒性釋出行為

代表近作

1. Warmadewanthi and J. C. Liu, “Recovery of phosphate and ammonium as struvite from semiconductor wastewater”, Sep. Purif. Technol., Vol. 64, No. 3, 368-373(2009).

2. M. D. G. de Luna, Warmadewanthi, and J. C. Liu, “Combined treatment of polishing wastewater and fluoride-containing wastewater from a semiconductor manufacturer”, Colloids Surfaces A, Vol. 347, No. 1-3, 64-68(2009).

3. J. C. Liu, Warmadewanthi, and C. J. Chang, “Precipitation flotation of phosphate from water”, Colloids Surfaces A, Vol. 347, No. 1-3, 215-219(2009).

4. N. C. Lu and J.C. Liu, “Removal of phosphorus and fluoride from wastewater by a hybrid precipitation-microfiltration process”, Sep. Purif. Technol., Vol. 74, No. 3, 329-335(2010).
5. L. Kentjono, J.C. Liu, W.C. Chang, and C. Irawan, “Removal of boron and iodine from optoelectronic wastewater using Mg-Al(NO₃) layered double hydroxide”, Desal., Vol. 262, No. 1-3, 280-283(2010).