By a News Reporter-Staff News Editor at Journal of Engineering -- New research on Chemical Engineering is the subject of a report. According to news reporting originating from Harbin, People's Republic of China, by VerticalNews correspondents, research stated, "The nitrification inhibition induced by a metabolic uncoupler, 2,6-DCP was investigated in a sequence batch culture during the 60-day operation. Batch tests indicated that pH and temperature were the two key parameters affecting the nitrification performance."
Our news editors obtained a quote from the research from the School of Software, "Significant inhibition of nitrification was observed on the initial addition of 2,6-DCP, then nitrification recovered to a higher level again. The extracellular polymeric substance (EPS) matrix functioned as a protective barrier for the bacteria inside sludge flocs to 2,6-DCP, resulting in the gradual recovery of nitrification efficiency. DGGE analysis showed the bacteria communities continued to evolve in the sludge over 60 days. Moreover, the addition of 2,6-DCP increased the activated sludge activity and enhanced the dewatering ability of excess sludge. SOUR tests suggested that 2,6-DCP was much more toxic to autotrophic microorganisms than heterotrophic microorganisms."
According to the news editors, the research concluded: "Thus, the application of metabolic uncoupler for excess sludge reduction should be very prudent."
For more information on this research see: Inhibition of nitrification by the metabolic uncoupler, 2,6-dichlorophenol (2,6-DCP) in a sequencing batch reactor. Chemical Engineering Journal, 2013;233():132-137. Chemical Engineering Journal can be contacted at: Elsevier Science Sa, PO Box 564, 1001 Lausanne, Switzerland. (Elsevier - www.elsevier.com; Chemical Engineering Journal - www.elsevier.com/wps/product/cws_home/601273)
The news editors report that additional information may be obtained by contacting J. Zhang, Harbin Inst Technol, Sch Software, Harbin 150090, People's Republic of China. Additional authors for this research include Y. Tian, W. Zuo, L. Chen and L.L. Yin.
Keywords for this news article include: Asia, Harbin, Chemical Engineering, People's Republic of China
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