Previous Article Next Article Table of Contents Chemical Engineering Journal, Vol.302, 269-277, 2016 DOI10.1016/j.cej.2016.05.048 Export Citation Understanding biofilm diffusion profiles and microbial activities to optimize integrated fixed-film activated sludge process Li Bing, Qiu Yong, Zhang Chi, Chen Liang, Shi Hanchang Please enable JavaScript to view the comments powered by Disqus.