Preliminary study on Up-flow Anaerobic Sludge Blanket (UASB) and Down-flow Aerobic Filter (DFAF) two phase combined reactor systems in treating domestic wastewater

Abd Kadir, Mohd Afindy and Abdul Latiff, Ab. Aziz and Daud, Zawawi (2013) Preliminary study on Up-flow Anaerobic Sludge Blanket (UASB) and Down-flow Aerobic Filter (DFAF) two phase combined reactor systems in treating domestic wastewater. In: 12th International UM Annual Symposium UMTAS 2013 , 8-10 October 2013, Kuala Terengganu, Terengganu .

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Abstract

Anaerobic wastewater treatment technology has shown high potential in organic removals as well as cost-effective processes. This paper presents an evaluation of the feasibility of employing UASB reactor followed by DFAF treating domestic wastewater. Besides, the performance of using zeolite and coconut shell activated carbon as support material will also be appraised. The microbial communities that are responsible for pollutant and nutrient removal are identified. An analytical study is carried out to evaluate the performance of combined UASB and DFAF reactors in a sequence operation. A 6.36 L UASB reactor seeded with sludge from anaerobic pond at University Tun Hussein Onn’s sewerage treatment plant is fed with domestic wastewater taken from the same treatment plant. The effluent of UASB directly discharged into the DFAF which has 2.84 L capacity. The DFAF is a down-flow filter through pack of zeolite and coconut shell activated carbon respectively. Aeration is provided via oxidation during filtration. The wastewater is fed continuously with increasing OLR until the reactor failed. The domestic wastewater samples are analyzed for pH and COD. The findings of this study would hopefully contribute to the enhancement of current established system in treating domestic wastewater.

Item Type:Conference or Workshop Item (Paper)
Subjects:T Technology > TD Environmental technology. Sanitary engineering > TD201-500 Water supply for domestic and industrial purposes
Divisions:Faculty of Civil and Environmental Engineering > Department of Water and Environmental Engineering
ID Code:4552
Deposited By:Normajihan Abd. Rahman
Deposited On:13 Dec 2013 17:56
Last Modified:21 Jan 2015 15:24

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