News Column

Data on Hydrology Discussed by Researchers at Tongji University

May 30, 2014

By a News Reporter-Staff News Editor at Science Letter -- Current study results on Hydrology have been published. According to news reporting from Shanghai, People's Republic of China, by NewsRx journalists, research stated, "Generally, biofilm-supporting carriers in biological contact oxidation processes are made from thermoplastic polymers, which cause potential ecological damage because of the low biodegradation and high accumulation in organisms. Thus, four bamboo-based fibers, bamboo primitive fiber, bamboo fiber, bamboo charcoal fiber (BBF) and bamboo charcoal-cotton blending fiber (BCBF), were used as carriers and compared with two commercial carriers (vinylon (VY) and polypropylene (PP)) in a biological contact oxidation process system with the goal to develop a biodegradable and sustainable biofilm medium."

The news correspondents obtained a quote from the research from Tongji University, "Under steady state conditions, pollutants (chemical oxygen demand and NH4+-N) in stage 1 (days 1-29, hydraulic retention time (HRT) = 12 h) were efficiently removed with a removal efficiency ranging from 85 to 95%. In stage 2 (days 30-53, HRT = 4-12 h), the pollutant-removal efficiency of four reactors (BBF, BCBF, VY and PP) were nearly indistinguishable and were higher than the two other reactors, especially when the HRT was set at 4 h (days 46-53). Consequently, two optimized bamboo-based fibers (BBF and BCBF) can be developed as biofilm carriers for wastewater treatment in the future."

According to the news reporters, the research concluded: "Furthermore, studies demonstrated that the biofilm development difference showed good correlation with their specific area and relative oxygen content but not with their tenacity and antimicrobial activity."

For more information on this research see: Novel application of bamboo-based fibers in a biological contact oxidation process. Water Science and Technology, 2014;69(7):1534-1540. Water Science and Technology can be contacted at: Iwa Publishing, Alliance House, 12 Caxton St, London SW1H0QS, England. (IWA Publishing -; Water Science and Technology -

Our news journalists report that additional information may be obtained by contacting X.M. Zou, Tongji Univ, State Key Lab Pollut Control & Resource Reuse, Coll Environm Sci & Engn, Shanghai 200092, People's Republic of China. Additional authors for this research include Y. Feng, C.M. Sheng, J. Liu, L.J. Lu, C. Hu and X.F. Huang (see also Hydrology).

Keywords for this news article include: Asia, Shanghai, Hydrology, People's Republic of China

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Source: Science Letter

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