| Issue Date | Title | Author(s) |
 | 2015 | Acetic acid effects on methanogens in the second stage of a two-stage anaerobic system | Xiao, Keke; Guo, Chenghong; Zhou, Yan; Maspolim, Yogananda; Ng, Wun-Jern |
 | 2013 | Acetic acid inhibition on methanogens in a two-phase anaerobic process | Ng, Wun Jern; Guo, Chenghong; Zhou, Yan; Wang, J. Y.; Maspolim, Yogananda; Xiao, Keke |
| 2016 | Characterization of key organic compounds affecting sludge dewaterability during ultrasonication and acidification treatments | Xiao, Keke; Chen, Yun; Jiang, Xie; Tyagi, Vinay Kumar; Zhou, Yan |
 | 2017 | Comparison of different treatment methods for protein solubilisation from waste activated sludge | Xiao, Keke; Chen, Yun; Jiang, Xie; Seow, Wan Yi; He, Chao; Yin, Yao; Zhou, Yan |
 | 2014 | Comparison of single-stage and two-phase anaerobic sludge digestion systems : performance and microbial community dynamics | Maspolim, Yogananda; Zhou, Yan; Guo, Chenghong; Xiao, Keke; Ng, Wun Jern |
 | 2015 | Determination of the archaeal and bacterial communities in two-phase and single-stage anaerobic systems by 454 pyrosequencing | Maspolim, Yogananda; Zhou, Yan; Guo, Chenghong; Xiao, Keke; Ng, Wun Jern |
 | 2015 | The effect of pH on solubilization of organic matter and microbial community structures in sludge fermentation | Maspolim, Yogananda; Zhou, Yan; Guo, Chenghong; Xiao, Keke; Ng, Wun Jern |
 | 2022 | Effect of sodium on methanogens in a two-stage anaerobic system | Xiao, Keke; Maspolim, Yogananda; Zhou, Yan; Guo, Chenghong; Ng, Wun Jern |
 | 2018 | Enhanced sludge solubilization and dewaterability by synergistic effects of nitrite and freezing | Sun, Faqian; Xiao, Keke; Zhu, Wenyu; Withanage, Nipuna; Zhou, Yan |
 | 2017 | Enhanced volatile fatty acids (VFAs) production in a thermophilic fermenter with stepwise pH increase – Investigation on dissolved organic matter transformation and microbial community shift | Chen, Yun; Jiang, Xie; Xiao, Keke; Shen, Nan; Zeng, Raymond J.; Zhou, Yan |
 | 2016 | Evaluating filterability of different types of sludge by statistical analysis: The role of key organic compounds in extracellular polymeric substances | Xiao, Keke; Chen, Yun; Jiang, Xie; Zhou, Yan |
 | 2018 | Hydrogen production from a thermophilic alkaline waste activated sludge fermenter : effects of solid retention time (SRT) | Chen, Yun; Xiao, Keke; Shen, Nan; Zeng, Raymond J.; Zhou, Yan |
| 2015 | Impact of undissociated volatile fatty acids on acidogenesis in a two-phase anaerobic system | Maspolim, Yogananda; Ng, Wun Jern; Xiao, Keke; Zhou, Yan; Guo, Chenghong |
| 2017 | Long solid retention time (SRT) has minor role in promoting methane production in a 65°C single-stage anaerobic sludge digester | Chen, Yun; Xiao, Keke; Jiang, Xie; Shen, Nan; Zeng, Raymond J.; Zhou, Yan |
| 2020 | Protein recovery from sludge: a review | Xiao, Keke; Zhou, Yan |
 | 2018 | Transformation of dissolved organic matters produced from alkaline-ultrasonic sludge pretreatment in anaerobic digestion : from macro to micro | Lu, Dan; Xiao, Keke; Chen, Yun; Soh, Annie Yan Ni; Zhou, Yan |
 | 2016 | Variations in physical, chemical and biological properties in relation to sludge dewaterability under Fe (II) – Oxone conditioning | Xiao, Keke; Chen, Yun; Jiang, Xie; Yang, Qin; Seow, Wan Yi; Zhu, Wenyu; Zhou, Yan |