Enhancement of Solubility and Biohydrogen Production from Sewage Sludge with Lime Mud Filtrate

  • Jishi Zhang
  • Chen Yao
  • Chuanfang Fan


This work has been performed to investigate the use of lime mud filtrate (LMF) pretreatment to enhance hydrogen (H2) evolution from sewage sludge (SS). The SS samples were pretreated with LMF (pH 8.0–11.0) at 55 °C for 48 h, prior to the H2 fermentation. The maximum H2 yield of 38.30 ml/g-VS (volatile solid) was obtained from the SS pretreated by LMF pH of 10.0, with the corresponding lag time of 3.10 h, which was well described by the modified Gompertz model. Adequate pH of LMF facilitated the solubilization of SS and the release of organic matters, providing adequate substrates for subsequent bio-H2 evolution. The soluble chemical oxygen demand was increased from 25.0 to 91.7%, as compared with the control test without LMF soak. However, further increase in pH of LMF could decrease the concentration of available substrate, thus reducing the H2 yield. This technique revealed sustainable waste management and energy recovery.


Mixed alkaline pretreatment Biohydrogen Lime mud filtrate Sewage sludge Sustainable waste management 



This work was sponsored by the Shandong Province Natural Science Foundation, China (ZR2016EEM33), and it was also supported by the Foundation (KF201720) of Key Laboratory of Pulp and Paper Science and Technology of Ministry of Education/ Shandong Province, Qilu University of Technology (Shandong Academy of Science).


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© Springer International Publishing AG, part of Springer Nature 2018

Authors and Affiliations

  1. 1.College of Environmental Science and EngineeringQilu University of Technology (Shandong Academy of Science)JinanChina
  2. 2.Key Laboratory of Pulp and Paper Science and Technology of Ministry of Education/Shandong ProvinceQilu University of Technology (Shandong Academy of Science)JinanChina

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