Химия

Synthesis and characterization of a novel cationic chitosan-based flocculant with a high water-solubility for pulp mill wastewater treatment

Jian-Ping Wang a,b, Yong-Zhen Chen a, Shi-Jie Yuan a, Guo-Ping Sheng a, Han-Qing Yu a,* a Department of Chemistry, University of Science & Technology of China, Hefei 230026, China b Department of Agricultural and Biological Engineering, University of Illinois at Urbana-Champaign, 1304 W. Pennsylvania Avenue, Urbana, IL 61801, USA a r t i c l e i n f o Article history: Received 27 March 2009 Received in revised form 8 August 2009 Accepted 27 August 2009 Available online 2 September 2009 Keywords: Chitosan Flocculant Grafting Optimization Pulp mill wastewater Water-solubility a b s t r a c t

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Roof-harvested rainwater for potable purposes: Application of solar collector disinfection (SOCO-DIS)

M.T. Amin a, M.Y. Han b,* a Assistant Professor, Department of Environmental Sciences, COMSATS Institute of Information Technology, Abbottabad, 22060, Pakistan b Professor, Civil and Environmental Engineering Department, Seoul National University, Shinrimdong, Kwanak Gu, Seoul, 151-742, Republic of Korea a r t i c l e i n f o Article history: Received 29 May 2009 Received in revised form 20 August 2009 Accepted 24 August 2009 Available online 3 September 2009 Keywords: Disinfection Microbial Potable Rainwater Solar collector disinfection (SOCO-DIS) a b s t r a c t

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Identification of a medicinal off-flavour in mineral water

Andrea Strube a,*, Helmut Guth b, Andrea Buettner a,c a Fraunhofer Institute for Process Engineering and Packaging (IVV), Giggenhauser Str. 35, D-85354 Freising, Germany b Bergische University of Wuppertal, Department of Food Chemistry, Gaußstraße 20, D-42119 Wuppertal, Germany c Institute of Pharmacy and Food Chemistry, Department of Food Chemistry, University Erlangen-Nu ¨rnberg, Schuhstr. 19, D-91052 Erlangen, Germany a r t i c l e i n f o Article history: Received 29 June 2009 Received in revised form 18 August 2009 Accepted 20 August 2009 Available online 26 August 2009 Keywords:

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Ammonium nitrogen removal from coking wastewater by chemical precipitation recycle technology

Tao Zhang a, Lili Ding a, Hongqiang Ren a,*, Xiang Xiong b a State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing 210093, Jiangsu, PR China b National Laboratory of Solid State Microstructures and Department of Physics, Nanjing University, Nanjing 210093, Jiangsu, PR China a r t i c l e i n f o Article history: Received 26 April 2009 Received in revised form 20 August 2009 Accepted 20 August 2009 Available online 1 October 2009 Keywords: Ammonium nitrogen Coking wastewater Chemical precipitation recycle technology (CPRT)

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Adsorption of rotavirus and bacteriophage MS2 using glass fiber coated with hematite nanoparticles

Leonardo Gutierrez a, Xuan Li b, Jinwen Wang b, Gordon Nangmenyi b, James Economy b, Theresa B. Kuhlenschmidt c, Mark S. Kuhlenschmidt c, Thanh H. Nguyen a,* aDepartment of Civil and Environmental Engineering, The Center of Advanced Materials for the Purification of Water with Systems, University of Illinois at Urbana-Champaign, Urbana, IL 61801, USA bDepartment of Materials Science & Engineering, The Center of Advanced Materials for the Purification of Water with Systems, University of Illinois at Urbana-Champaign, Urbana, IL 61801, USA

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Locating illicit connections in storm water sewers using fiber-optic distributed temperature sensing

O.A.C. Hoes a,*, R.P.S. Schilperoort b, W.M.J. Luxemburg a, F.H.L.R. Clemens b, N.C. van de Giesen a a Department of Water Resources, Delft University of Technology, PO Box 5048, 2600 GA Delft, The Netherlands b Department of Sanitary Engineering, Delft University of Technology, PO Box 5048, 2600 GA Delft, The Netherlands a r t i c l e i n f o Article history: Received 4 April 2009 Received in revised form 5 August 2009 Accepted 18 August 2009 Available online 25 August 2009 Keywords: Fiber-optics Illicit connections Storm water systems Temperature monitoring a b s t r a c t

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Removal of MIB and geosmin using granular activated carbon with and without MIEX pre-treatment

Mary Drikas*, Mike Dixon, Jim Morran Australian Water Quality Centre, South Australian Water Corporation, GPO Box 1751, Adelaide, South Australia 5001, Australia a r t i c l e i n f o Article history: Received 8 May 2009 Received in revised form 11 August 2009 Accepted 14 August 2009 Available online 21 August 2009 Keywords: Biodegradation Dissolved organic carbon Granular activated carbon Geosmin 2-methylisoborneol MIEX a b s t r a c t This study assessed the impact of MIEX pre-treatment, followed by either coagulation or

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Fate of LCFA in the co-digestion of cow manure, food waste and discontinuous addition of oil

L. Neves, R. Oliveira, M.M. Alves* IBB – Institute for Biotechnology and Bioengineering, Center of Biological Engineering, University of Minho, Campus de Gualtar, 4710-057 Braga, Portugal a r t i c l e i n f o Article history: Received 26 May 2009 Received in revised form 7 August 2009 Accepted 10 August 2009 Available online 15 August 2009 Keywords: Cow manure Anaerobic digestion Food waste Long chain fatty acids a b s t r a c t Different concentrations of oily waste were added in a discontinuous mode and recurrently

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Cost and effluent quality controllers design based on the relative gain array for a nutrient removal WWTP

Vinicius Cunha Machado, David Gabriel, Javier Lafuente, Juan Antonio Baeza* Departament d’Enginyeria Quı´mica, Escola d’Enginyeria, Universitat Auto `noma de Barcelona, 08193 Cerdanyola del Valle `s, Barcelona, Spain a r t i c l e i n f o Article history: Received 12 April 2009 Received in revised form 29 July 2009 Accepted 7 August 2009 Available online 14 August 2009 Keywords: Nitrification EBPR Nutrient removal Control structure design Operating cost control Relative gain array (RGA) a b s t r a c t

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Removal of arsenic from water: Effect of calcium ions on As(III) removal in the KMnO4–Fe(II) process

Xiaohong Guana,*, Jun Maa,b,*, Haoran Donga, Li Jianga aState Key Lab of Urban Water Resource and Environment (HIT), Harbin Institute of Technology, Harbin, PR China bNational Engineering Research Center of Urban Water Resources, Harbin Institute of Technology, Harbin 150090, PR China a r t i c l e i n f o Article history: Received 23 September 2008 Received in revised form 5 December 2008 Accepted 30 December 2008 Available online 20 January 2009 Keywords: As(III) Drinking water Permanganate Fe(II) Fe(III) formed in situ Calcium a b s t r a c t

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