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): 1286-1291. GONG Youkui, WANG Sai, PENG Yongzhen, et al. Formation of N2O in various biological nitrogen removal processes for treatment of domestic sewage[J]. CIESC Journal, 2010, 61(5): 1286-1292... of 2.5-3.3. Key words: simultaneous nitrification-denitrification; biofilm; MBBR; biological nitrogen removal 目前,大量含氮废水的随意排放是引起我国封闭性水域污染的重要原因[1],特别是水体富营养化,潜在威胁饮用水源的安全[2],对人体健康产生巨大危害[3].结合我国国情,较为经济,高效的生......
Trans. Nonferrous Met. Soc. China 22(2012) 2343-2350 Effect of heat treatment on microstructure, mechanical properties and in vitro degradation behavior of as-extruded Mg-2.7Nd-0.2Zn-0.4Zr alloy... with aging treatment, solution treatment and solution+aging treatment, respectively. Microstructures of the alloy were observed by optical microscopy (OM) and scanning electron microscopy (SEM......
cast over a cooling plate offer a fine uniform structure that can be forged even without a separate homogenization treatment. This is made it possible by the limited superheat of the melt at the start..., and the hardness reached HV 110 after the standard artificial ageing treatment. Key words: aluminium alloys; forging; cooling slope casting; heat treatment 1 Introduction Forging is an attractive forming......
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, and is presumed to be a better PFOA-degrading microorganism. Key words: perfluorooctanoic acid (PFOA); PFOA-resisting bacterium; tolerance; biological toxicity 全氟化合物(perfluorinated compounds,PFCs)指氢原子... and removal of perfluorinated compounds during wastewater treatment[J]. Science of the Total Environment, 2015, 524/525: 81-92. [2] PRAMANIK B K, PRAMANIK S K, SARKER D C, et al. Removal of emerging......
Convergence of shape optimization calculations of mechanical components using adaptive biological growth and iterative finite element methodsMohammad Zehsaz, Kaveh E. Torkanpouri, Amin Paykani... years. Different methods were presented such as adaptive biological for reducing costs and increasing accuracy. The effects of step factor, the number of control points and the definition way......
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Treatment of naphthalene derivatives with iron-carbon micro-electrolysis WANG Yu-ping(王玉萍)1, 2, WANG Lian-jun(王连军)1, PENG Pan-ying(彭盘英)2, LU Tian-hong(陆天虹)2 1. School of Chemical Engineering...%-92.6% and the removal efficiency of TOC is 42.8%-78.0% for the simulated wastewater with 200 mg/L naphthalene derivatives at optimal pH of 2.0-2.5 after 120 min treatment. The degradation of five......
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