[KSCI] Korea Science Citation Index Service

http://dx.doi.org/10.12989/mwt.2012.3.2.113

Application of upflow multi-layer bioreactor (UMBR) for domestic wastewater treatment in HCMC

Cao, Duc Hung (Faculty of Environment, Ho Chi Minh City University of Technology)
Nguyen, Ngoc Han (Faculty of Environment, Ho Chi Minh City University of Technology)
Nguyen, Phuoc Dan (Faculty of Environment, Ho Chi Minh City University of Technology)
Bui, Xuan Thanh (Faculty of Environment, Ho Chi Minh City University of Technology)
Kwon, J.C. (R&D Center, Ecodigm Co., Ltd.)
Shin, H.S. (Department of Civil and Environmental Engineering, KAIST)
Lee, E.T. (R&D Center, Ecodigm Co., Ltd.)

Publication Information

Membrane and Water Treatment / v.3, no.2, 2012 , pp. 113-121 More about this Journal

Abstract

Up-flow multi-layer bioreactor (UMBR) is a hybrid system using dual sludge that consists of an up-flow multi-layer bioreactor as anaerobic/anoxic suspended growth microorganisms followed by an aeration tank. The UMBR acts as a primary settling tank, anaerobic/anoxic reactor, thickener which requires low energy due to mixing by up-flow stream. This study focused on using a pilot UMBR plant with capacity of 20-30 $m^3$ /day for domestic wastewater in HCMC. HRTs of UMBR and aeration tank were 4.8 h and 7.2 h, respectively. The average MLSS of UMBR ranged from 10,000-13,600 mg/l SS. Internal recycle rate and sludge return were 200-300% and 150-200%, respectively. The results obtained from this study at flow rate of 20 $m^3$ /day showed that removal of COD, SS, TKN, N- $NH_4$ , T-N, and color were 91%, 87%, 86%, 80%, 91% and 91%, respectively.

Keywords

UMBR; up-flow multi-layer bioreactor; nutrient removal; domestic wastewater;

Citations & Related Records

Reference

1	Foess, G.W., Steinbrecher, P., Garrett, G.S. and Smith, R. (1999), Cost and performance evaluation of nutrient removal at small wastewater treatment plants. WEFTEC' New Orleans, LA.
2	An, J.Y., Kwon, J.C., Ahn, D.H., Shin, H.S., Kim, B.W. (2007), "Efficient nitrogen removalinapilot system based on upflow multi-layer bioreactor for treatment of strong nitrogenousswine wastewater", Process Biochem., 42(5), 764-772. DOI
3	Kwon, J.C., An, J.Y., Shim, K.B., Shin, H.S., Jun, H.B. and Park, H.S. (2003), Nitrogen and phosphorus removal of pilot scale plant using UMBR (upflow multi-layer bioreactor) asanaerobic/anoxicreactor. WEFTEC2003. LA.
4	Kwon, J.C., Park, H.S., An, J.Y., Shim, K.B., Kim, Y.H. and Shin, H.S. (2005), "Biological nutrient removal in simple dual sludge system with an UMBR (upflow multi-layer bioreactor) and aerobic biofilm reactor", Water Sci. Technol., 52(10-11), 443-451
5	APHA-AWWA-WEF (1998), Standard Methods for examination of water and wastewater, 20thed., New York: American Public Health Association.
6	Institute for Environment and Natural Resource (2005), Annual Monitoring report of Binh Hung Hoa DWWTP.
7	Eckenfelder Jr., W.W. (2000), Industrial Water Pollution Control. McGraw-Hill. Third Edition.