Anaerobic Reactor for Indonesian Tofu Wastewater Treatment

 
 
 
  • Abstract
  • Keywords
  • References
  • PDF
  • Abstract


    An Upflow Anaerobic Sludge Blanket (UASB) reactor was used to process liquid wastes from a tofu industry with COD (Chemical Oxygen Demand) 7619 mg/L, pH 4, and TSS (Total Suspended Solid) 1035 mg/L. This work is part of efforts to clean Citarum River in West Java, Indonesia, named as Citarum Harum national program.  The liquid Hydraulic Retention Time (HRT) in the reactor was varied from 2, 3, 4, and 5 days and the resulting COD outputs were 6783 mg/L, 6494 mg/L, 5806 mg/L, and 4722 mg/L respectively. The results represented up to 38% in COD reduction. Biogas was produced from the UASB Reactor with the maximum production rate of 1.56 mL/min. The composition of the biogas was methane (56.4% -mole), carbon dioxide (42.7% -mole), and impurities (0.9% -mole) with the Lower Heating Value (LHV) of 20.2 MJ/Nm3.

     

     


  • Keywords


    Biogas, Citarum Harum, HRT, Tofu Wastewater, UASB Reactor.

  • References


      [1] Deublein, D. and Steinhauser, A. “Biogas from waste and renewable resources. 2nd Ed., Wiley-VCH Verlag GmbH & Co., Weinheim, 2010.

      [2] Herout M., Malatak, J., Kucera, L., and Dlabaja,T. “Biogas composition depending on the type of plant biomass used.” Czech University of Life Sciences Prague, Res. Agr. Eng. Vol. 57 (2011) No.4: 137-143.

      [3] Indriyati dan Susanto, J.P. “Biological processing performance of tofu liquid wastes”. Jurnal Teknologi Lingkungan Volume 13 (2012) No.2, 159-166. ISSN: 1441-318X (in Indonesian)

      [4] Oktiana, T.D., Santoso, J., and Kawaroe, M. “Green Algae (Ulva Sp.) as feedstock for biogas production.” Jurnal Ilmu dan Teknologi Kelautan Tropis, Vol. 7 (2015), No. 1, 191-203 (in Indonesian)

      [5] Rahmat, Budy, Tedy Hartoyo, dan Yaya Sunarya. 2014. “Biogas production from tofu liquid waste on treated agricultural wastes." American Journal of Agricultural and Biological Sciences. 9 (2): 226-231. ISSN: 1557-4989.

      [6] Sorathia, Harilal S.; Dr. Pravin P. Rathod; Arvind S. Sorathiya. 2012. “Biogas generation and factors affecting the biogas generation.” Gujarat IJAET E-ISSN 0976-3945.

      [7] Wagiman. “Biogas production from tofu liquid wastes using Upflow Anaerobic Sludge Blanket (UASB) Reactors.” UGM Bioteknologi 4 (2007) No.2: 41-45, ISSN: 0216-6887, DOI:10.13057 (in Indonesian)


 

View

Download

Article ID: 17456
 
DOI: 10.14419/ijet.v7i3.26.17456




Copyright © 2012-2015 Science Publishing Corporation Inc. All rights reserved.