Treatment domestic wastewater using UASB and DFAF two phase combined reactor systems: preliminary study. Journal of Engineering and Technology, 6 (2). pp. 1-8. ISSN 2180-3811 (2015)
Abstract
Anaerobic wastewater treatment technology has shown high organic removals as well as cost-effective processes. This paper presents an evaluation of the feasibility of employing Up-flow Anaerobic Sludge Blanket (UASB) reactor followed by Down-flow Aerobic Filter (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 of nutrient removal were identified. An analytical study carried out to evaluate the performance of combined UASB (R1, R2, and R3) and DFAF (S1, S2, and S3) reactors in sequence operation. 6.36L UASB reactor seeded with sludge from domestic sewerage plant anaerobic pond to be fed with domestic wastewater. The effluent of UASB reactor was directly discharged to the DFAF reactor of 2.84L capacity. The DFAF is a down-flow filter through pack of zeolite and coconut shell activated carbon respectively. The wastewater was fed continuously with increasing Organic Loading Rates(OLR)until the reactor failed. Parameters measured were pH and Chemical Oxygen Demand (COD). The instruments used for collecting data in this research were pH meter and COD analyzer. In this research, the highest COD removal of the effluents from the R1, R2 and R3 were on the 12thday with 95% removal,16thday with96% and 14thday with 95%removal respectively. Meanwhile, in the post-treatment system, the highest COD removal of the effluents from the S1, S2 and S3 were on the 4thday with 85% removal,6thday with 70% removal and6thday with 93% removal. These findings of the study would contribute to the enhancement of current established system in treating domestic wastewater.
| Item Type: | Article |
|---|---|
| Keywords: | Domestic wastewater, Two phase combined reactor system, Coconut shell activated carbon |
| Taxonomy: | By Subject > College of Engineering > Chemical Engineering > Biotechnology & Bioprocess By Subject > College of Engineering > Chemical Engineering > Environment |
| Local Content Hub: | Subjects > College of Engineering |
| Depositing User: | Eza Eliana Abdul Wahid |
| Date Deposited: | 19 Jul 2022 07:31 |
| Last Modified: | 19 Jul 2022 07:31 |
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