Abstract
This study focuses on the use of non-viable Aspergillus niger biomass, for the biosorption of pentachlorophenol (PCP) from aqueous solutions. Various forms of the biomass-autoclaved and chemically conditioned, were tested for their potential in the removal of PCP from aqueous solutions. It was found that PCP removal was pH dependent; PCP removal decreased with the increase in pH for all type of biomass, except for cetyltrimethylammonium bromide (CTAB) biomass. For CTAB biomass, a near complete removal of PCP was observed at all pHs. Therefore, CTAB biomass was used in further studies. PCP removal was rapid, with an equilibrium time of 2h. The rate of adsorption kinetics was well described by a pseudo-second order model. Isotherm models of the type one and two parameter models were found to fit the isotherm data. PCP biosorption was found to be exothermic in nature; the amount of PCP sorbed decreased with an increase in temperature. Desorption was carried out using deionized water, dilute HCl and dilute NaOH, and it was found that most of the PCP was irreversibly bound to the biomass. The addition of inorganic salts did not affect the removal of PCP from aqueous solutions. Among the surface functional groups present on the bioma...Continue Reading
References
Sep 11, 1999·Chemosphere·T Viraraghavan, K Slough
Jun 30, 2000·Journal of Colloid and Interface Science·R S JuangR L Tseng
Jan 5, 2002·Environmental Science & Technology·K K TseJ W Wang
Sep 27, 2003·Water Research·Maria X LoukidouMaria Liakopoulou-Kyriakidou
Dec 11, 2003·Environment International·Ying-Xu ChenMeng-Wei Shen
Dec 17, 2003·Water Research·B Antizar-Ladislao, N I Galil
Mar 5, 2004·Environmental Science & Technology·Ajay K Jain Suhas
Apr 15, 2004·The Science of the Total Environment·Marianna Czaplicka
May 15, 2004·Water Research·Shaokui ZhengYun Hee Park
Jul 21, 2004·The Science of the Total Environment·Paul E StackelbergDori B Reissman
Jul 28, 2004·Water Research·Yves DudalLouise Deschênes
Aug 10, 2004·Environmental Science & Technology·V K GuptaV K Saini
Jun 25, 2005·Environmental Technology·T Mathialagan, T Viraraghavan
Nov 1, 1999·Environmental Science & Technology·C M Cooney
Dec 1, 1994·Environmental Science & Technology·M G StapletonS K Dentel
Oct 1, 1995·Environmental Science & Technology·E GuibalP Le Cloirec
Citations
May 13, 2014·Ecotoxicology and Environmental Safety·F Z HalaimiS Semsari
Jan 18, 2014·World Journal of Microbiology & Biotechnology·S RangabhashiyamLity Alen Varghese
Dec 19, 2012·Colloids and Surfaces. B, Biointerfaces·Viktor FarkasTímea Pernyeszi
Apr 7, 2012·Chemosphere·Liping LouYingxu Chen
Apr 26, 2011·Journal of Hazardous Materials·Hugo León-SantiestebánAraceli Tomasini
Aug 26, 2014·New Biotechnology·Luciano BossoOlga Rubilar
May 1, 2012·Water Research·Yuqiang TaoQinglong Wu
Mar 14, 2012·Bioresource Technology·Liping LouYingxu Chen
Jan 11, 2011·Bioresource Technology·Liping LouYingxu Chen
Feb 14, 2012·Bioresource Technology·Zhifeng LiuGengxin Xie
Jan 1, 2011·Journal of Environmental Sciences (China)·Yonghui LinWenyong Hu
Oct 23, 2016·Environmental Science and Pollution Research International·Zhifeng LiuXin Yang
Nov 14, 2015·Environmental Science. Processes & Impacts·Tiantian ShenJinren Lu
Dec 7, 2017·International Journal of Environmental Research and Public Health·Omena Bernard Ojuederie, Olubukola Oluranti Babalola
Feb 8, 2020·Journal of Environmental Health Science & Engineering·Zahra SeyediHamed Tashakkorian
Mar 3, 2020·Journal of Hazardous Materials·Qingqing TiXin Jiang
Nov 17, 2019·Food Research International·Valéria Rampazzo RibeiroCharles Windson Isidoro Haminiuk