Removal of arsenic using hardened paste of Portland cement: batch adsorption and column study

Water Research
Subrata KunduTarasankar Pal

Abstract

Hardened paste of Portland cement (HPPC) has been used as a low-cost adsorbent for the removal of arsenic from water environment. Results from the batch experiments, conducted at an initial concentration of 0.2 ppm of arsenate, suggest arsenate removal up to 95%. Kinetic profiles were developed for various conditions. Effects of adsorbent dose, common ions such as Ca(2+), Mg(2+), Fe(3+), Fe(2+), Cl(-), SO(4)(2-), NO(3)(-), PO(4)(3-) and of pH were studied in detail. Adsorption isotherm studies revealed that the Freundlich isotherm was followed with a better correlation than the Langmuir isotherm. Arsenite could also be removed up to approximately 88% using the same material, HPPC. Finally, column studies were undertaken involving the new HPPC to check the suitability of the material for the removal of total arsenic content from water body. Kinetic experiments for the removal of arsenic by column studies revealed a film diffusion mechanism.

Citations

Jan 30, 2014·Waste Management·Takeshi SasakiAkihiro Yamasaki
Dec 5, 2012·Environmental Science and Pollution Research International·Shubha NigamPadma S Vankar
Feb 9, 2016·Journal of Colloid and Interface Science·Zhongfei RenHantao Wang
Aug 30, 2011·Journal of Environmental Management·Dion E GilesPritam Singh
Jul 31, 2007·Journal of Hazardous Materials·Sanjoy Kumar MajiTarasankar Pal
Jun 22, 2007·Journal of Hazardous Materials·D Pokhrel, T Viraraghavan
Feb 28, 2007·Journal of Hazardous Materials·Dinesh Mohan, Charles U Pittman
Jan 13, 2006·Chemosphere·Konstantinos C MakrisRupali Datta
Aug 13, 2015·Journal of Environmental Management·Sachin V JadhavKumudini V Marathe
Jan 27, 2015·Journal of Environmental Management·Emmanuel Djoufac WoumfoDaniel Njopwouo
Apr 21, 2016·Environmental Science and Pollution Research International·Kapil Dev BrahmanSumaira Khan
Jun 1, 2011·Journal of Chemical and Engineering Data·Susana Addo Ntim, Somenath Mitra
Jun 28, 2016·Chemical Communications : Chem Comm·Chenghong WangKang Li
May 8, 2018·Environmental Science and Pollution Research International·Rajesh Manoharrao DhobleSadhana Rayalu
Sep 13, 2007·Journal of Environmental Science and Health. Part A, Toxic/hazardous Substances & Environmental Engineering·Sanjoy K MajiAsok Adak
Mar 17, 2007·Journal of Environmental Science and Health. Part A, Toxic/hazardous Substances & Environmental Engineering·Sanjoy K MajiTarasankar Pal
Jun 15, 2007·Journal of Environmental Science and Health. Part A, Toxic/hazardous Substances & Environmental Engineering·Sanjoy K MajiAsok Adak
Sep 20, 2016·Water Science and Technology : a Journal of the International Association on Water Pollution Research·Mohammad Hossein RasoulifardAzam Heidari
Apr 5, 2007·Nature Protocols·Imran Ali, V K Gupta
Jan 6, 2009·Journal of Environmental Science and Health. Part A, Toxic/hazardous Substances & Environmental Engineering·Debasis DeSanat K Roy
Nov 25, 2019·Environmental Science and Pollution Research International·Ali MagedAmit Bhatnagar
Nov 18, 2020·Environmental Science and Pollution Research International·Qiu-Yi DongHe-Ping Zhao
Jun 3, 2021·Molecules : a Journal of Synthetic Chemistry and Natural Product Chemistry·Jing JiHao Wu
Oct 9, 2021·The Science of the Total Environment·Zihan MaChi Sun Poon

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