International Journal of Waste Resources

Zifu Li

Publications

• Research Article
  Effect of Hydraulic Retention Time on Anaerobic Digestion of Xiao Jiahe Municipal Sludge
  Author(s): Odey Emmanuel Alepu, Zifu Li, Harrison Odion Ikhumhen, Loissi Kalakodio, Kaijun Wang and Giwa Abdulmoseen SegunOdey Emmanuel Alepu, Zifu Li, Harrison Odion Ikhumhen, Loissi Kalakodio, Kaijun Wang and Giwa Abdulmoseen Segun
  
  In this study, the research protocol was designed to examine the effect of hydraulic retention time (HRT) on the efficiency of the production of biogas from sewage concentrates recovered from coagulation and adsorption process from Xiao Jiahe municipal wastewater treatment plant and to report on its overall performance. Three complete-mix, continuous stirred tank reactor (CSTR) with working volume of 900 mL were used. The digesters were operated at different HRT of 10 d, 20 d and 30 d. Biogas produced had methane composition of 60-70% and biogas production rates of 18 mL/d in reactor 1, 169 mL/d in reactor 2 and 114 mL/d in reactor 3. Reactor 3 showed stable performance with the highest methane yield of 166 mL/gCOD. Reactor 1 recorded lowest methane yield of 10 mL/ gCOD. Due to high organic loading rate (OLR) and shorter HRT, the VS degradation and biogas yield in reactor 1 decreased. Ba.. View More»
  DOI: 10.4172/2252-5211.1000231

  Abstract PDF