Use of G3-DHS Bioreactor for Secondary Treatment of Septic Tank Desludging Wastewater

Izarul Machdar, Faisal Faisal, Syaifullah Muhammad, Takashi Onodera, Kazuaki Syutsubo


DOI: https://doi.org/10.14710/3.2.41-46

Abstract


Study was done for the use of the third-generation of downflow hanging sponge (G3-DHS) bioreactor for secondary treatment of septic tank desludging wastewater. The main objective of this study was to evaluate the prospective system of G3-DHS bioreactor to be applied in Indonesia. During experiment, the G3-DHS bioreactor kept a relatively high dissolved oxygen concentration under natural aeration. At a relatively short hydraulic retention (HRT) of 3 h, the G3-DHS bioreactor could remove up to 21% (SD 15%) of total COD, 21% (SD = 7%) of filtered-COD, 58% (SD = 24%) of unfiltered-BOD, and 33% (SD = 24%) of ammonium removal. The final effluent had an unfiltered-BOD of only 46 mg.L-1 (SD = 20 mg.L-1) that it was below the Indonesian standard (unfiltered-BOD = 100 mg.L-1) for thresholds of domestic wastewater treatment plants effluent.


Keywords


domestic wastewater; G3-DHS; septic tank; desludging

Full Text:

FULL TEXT PDF

References


World Bank Report. (2013). East Asia Pacific Region Urban Sanitation Review. Indonesia Country Study. Australian Agency for International Development.

Juliman, D. (2006). The world’s first slum upgrading programme. UN-Habitat.

Colin, J. (2011). Lesson in Urban Sanitation Development. Indonesia Sanitation Sector Development Program 2006-2010. WSP Field Note, World Bank.

Machdar, I. (2012). Status and Challenges of Sewage Treatment System in Indonesia. In Proceeding of International workshop on “Development of Technological Research Platform for Application of Water Environment Improvement (wastewater treatment) Technology in Southeast Asia”. Bangkok, Thailand, Organized by NIES, Japan.

Machdar, I., Harada, H., Ohashi, A., Sekiguchi, Y., Okui, H., Ueki, K. (1997). A Novel and Cost-Effective Sewage Treatment System Consisting of UASB Pre-Treatment and Aerobic Post-Treatment Units for Developing Countries. Water Sci. & Technol., 36(12): 189-197.

Araki, N., Ohashi, A., Machdar, I., Harada, H. (1999). Behaviour of Nitrifiers in a Novel Biofilm Reactor Employing Hanging Sponge-Cubes as Attachment Site. Water Sci. & Technol., 39(7): 23-31.

Machdar, I., Sekiguchi, Y., Sumino, H., Ohashi, A., Harada, H. (2000). Combination of a UASB Reactor and a Curtain Type DHS (Downflow Hanging Sponge) Reactor as a Cost-Effective Sewage Treatment System for Developing Countries. Water Sci. & Technol., 42(3-4): 83-88.

Uemura, S., Takahashi, K., Takaishi K., Machdar, I., Ohashi, A., Harada, H. (2002). Removal of Indigenous Coliphages and Fecal Coliform by a Novel Sewage Treatment System Consisting of UASB and DHS Units. Water Sci. & Technol., 46(11-12): 303-309.

Tandukar, M., Uemura, S., Machdar, I., Ohashi, A., Harada, H. (2005). A Low-Cost Municipal Sewage Treatment System with a Combination of UASB and the "Fourth-Generation" Downflow Hanging Sponge Reactors. Water Sci. & Technol., 52(1-2): 323-329.

Tandukar, M., Machdar, I., Uemura, S., Ohashi, A., Harada, H. (2006). Potential of a Combination of UASB and DHS Reactor as a Novel Sewage Treatment System for Developing Countries: Long-Term Evaluation. J. Environmental Engineering ASCE, 132(2): 166-172.

Tandukar, M., Ohashi A., Harada, H. (2007). Performance Comparison of a Pilot-Scale UASB and DHS System and Activated Sludge Process for the Treatment of Municipal Wastewater. Water Research, 41(12): 2697–2705.

Machdar, I., Faisal, M., (2011). Modification of DHS Bioreactor Module with Oil Palm Fiber Material for Treating Domestic Wastewater. J. Water Environ. Technol. 9(1): 47–52.

PHA-AWWA-WEF. (2005). Standard Methods for the Examination of Water and Wastewater, 21th ed., American Public Health Association/American Water Works Association/Water Environment Federation, New York, USA.

Onodera, T., Mastunaga, K., Kubota, K., Taniguchi, R., Harada, H., Syutsubo, K., Okubo, T., Uemura, S., Araki, N., Yamada, M., Yamauchi, M., Yamaguchi, T. (2013). Characterization of the Retained Sludge in a Down-flow Hanging Sponge (DHS) Reactor with Emphasis on Its Low Excess Sludge Production. Bioresource Technology, 136: 169-175.




Published by Waste Resources Research Center (WRRC), Diponegoro University - Indonesia
   
 
WasTech by http://ejournal.undip.ac.id/index.php/wastech is licensed under Creative Commons Attribution-ShareAlike 4.0.