Case studies of microbubbles in wastewater treatment

Lau Hao Wen; Azhar Bin Ismail; P. M. Menon; Jayaprakash Saththasivam; Kyaw Thu; Ng Kim Choon

doi:10.5004/dwt.2011.1217

Case studies of microbubbles in wastewater treatment

Lau Hao Wen, Azhar Bin Ismail, P. M. Menon, Jayaprakash Saththasivam, Kyaw Thu, Ng Kim Choon

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17 Scopus citations

Abstract

In this study, a physical separation method using a flotation system employing microbubbles was designed and tested as an alternative to conventional dissolved air flotation (DAF) systems. The proposed system is an environmentally friendly microbubble treatment using air, ozone, and CO₂ gases and requiring virtually no chemicals. Three case studies have been investigated in this paper which verify the efficacy of microbubbles in treating wastewater, namely, (i) treatment of oily wastewater derived from cleaning the hull of a tanker ship, (ii) treatment of hotel laundry water, and (iii) treatment of fish pond water. After microbubble treatment, the treated water was determined to be suitable for recycling or discharge to the environment. The test results show that both air and ozone microbubble in wastewater treatments achieved large reductions in TSS, BOD and COD in the tested samples.

Original language	English (US)
Pages (from-to)	10-16
Number of pages	7
Journal	Desalination and Water Treatment
Volume	30
Issue number	1-3
DOIs	https://doi.org/10.5004/dwt.2011.1217
State	Published - Jun 2011

Keywords

Agglomeration
Micro air and ozone bubbles
Microbubbles
Waste water treatment

ASJC Scopus subject areas

Water Science and Technology
Pollution
Ocean Engineering

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10.5004/dwt.2011.1217

Cite this

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AU - Thu, Kyaw

AU - Choon, Ng Kim

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Case studies of microbubbles in wastewater treatment

Abstract

Keywords

ASJC Scopus subject areas

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