Please use this identifier to cite or link to this item: http://hdl.handle.net/1959.3/228745

Title

Optimization of circular plate separators with cross flow for removal of oil droplets and solid particles

Author(s)

Ngu, Hei;  Wong, Kien Kuok;  Law, Puong Ling

Abstract

A circular gravity-phase separator using coalescing medium with cross flow was developed to remove oil and suspended solids from wastewaters. Coalescence medium in the form of inclined plates promotes rising of oil droplets through coalescence and settling of solid particles through coagulation. It exhibits 22.67% higher removal of total suspended solids (TSS) compared to separators without coalescing medium. Moreover, it removed more than 70% of oil compared to conventional American Petroleum Institute separators, which exhibit an average of 33% oil removal. The flowrate required to attain an effluent oil concentration of 10 mg/L (Qo10) at different influent oil concentrations (Cio) can be represented by Qo10 × 10−5 = −0.0012Cio + 0.352. The flowrate required to attain an effluent TSS concentration of 50 mg/L (Qss50) at different influent TSS concentrations (Ciss) can be represented by Qss50 × 10−5 = 1.0 × 106 Ciss −2.9576. The smallest removable solid particle size was 4.87 µm.

Publication type

Journal article

Research centre

Swinburne University of Technology. Sarawak Campus. School of Engineering, Computing and Science

Source

Water Environment Research, Vol. 84, no. 4 (Apr 2012), pp. 299-304

Publication year

2012

FOR Code(s)

03 Chemical Sciences;  06 Biological Sciences;  09 Engineering

Keyword(s)

Circular separator;  Coalescence plates;  Cross flow;  Oil-water-solid separation

Publisher

Water Environment Federation

ISSN

1061-4303

Publisher URL

http://dx.doi.org/10.2175/106143012x13310630612646

Copyright

Copyright © 2012 Water Environment Federation.

Peer reviewed