naa a22 4500 510748767 CHVBK 20180411083056.0 cr unu---uuuuu 180411e20130101xx s 000 0 eng 10.1007/s11270-012-1365-4 doi (NATIONALLICENCE)springer-10.1007/s11270-012-1365-4 Competitive Adsorption Between Phenol, Aniline and n -Heptane in Tailrace Coking Wastewater [Elektronische Daten] [Yuan Ren, Ting Li, Chaohai Wei] The competitive adsorption of organic pollutants—phenol, aniline and n-heptane—from biologically treated coking wastewater on powdered activated carbon (PAC) was studied. Firstly, batch adsorption experiments of coking wastewater were conducted to investigate the effect of pH and temperature on their adsorption. Results showed that long-chain alkanes, benzoic, halogenated and phenolic compounds were adsorbed well under acidic condition, while amines were adsorbed well under alkaline condition; maximum co-adsorption amount of all kinds of organic compounds occurred at around pH5. Then, Lagergren kinetic model and pseudo-second-order kinetic model were used to describe the adsorption process of phenol and aniline on PAC. The data were fitted very well with pseudo-second-order kinetics, and the adsorption capacity decreased with an increase in temperature, belonging to Freundlich multi-layer physical adsorption. The adsorption speed and capacity of phenol were superior to aniline in unitary and binary solution. The adsorption amount of n-heptane decreased by 26.6% from ternary competitive absorption system of phenol, aniline and n-heptane compared with that in unitary solutions, which showed that phenol and aniline caused spatial adsorption steric hindrance to n-heptane. Springer Science+Business Media Dordrecht, 2012 Coking wastewater nationallicence Powdered activated carbon nationallicence Competitive adsorption nationallicence Phenol nationallicence Aniline nationallicence n -Heptane nationallicence Ren Yuan College of Environmental Science and Engineering, South China University of Technology, Panyu District, 510006, Guangzhou, People's Republic of China aut Li Ting College of Environmental Science and Engineering, South China University of Technology, Panyu District, 510006, Guangzhou, People's Republic of China aut Wei Chaohai College of Environmental Science and Engineering, South China University of Technology, Panyu District, 510006, Guangzhou, People's Republic of China aut Water, Air, & Soil Pollution Springer Netherlands 224/1(2013-01-01), 1-11 0049-6979 224:1<1 2013 224 11270 https://doi.org/10.1007/s11270-012-1365-4 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s11270-012-1365-4 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Ren Yuan College of Environmental Science and Engineering, South China University of Technology, Panyu District, 510006, Guangzhou, People's Republic of China aut NATIONALLICENCE 700 1- Li Ting College of Environmental Science and Engineering, South China University of Technology, Panyu District, 510006, Guangzhou, People's Republic of China aut NATIONALLICENCE 700 1- Wei Chaohai College of Environmental Science and Engineering, South China University of Technology, Panyu District, 510006, Guangzhou, People's Republic of China aut NATIONALLICENCE 773 0- Water, Air, & Soil Pollution Springer Netherlands 224/1(2013-01-01), 1-11 0049-6979 224:1<1 2013 224 11270 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer