Files and links (2)
Published (Version of record)CC BY-NC-ND V4.0, Open Access
Published (Version of record)CC BY-NC-ND V4.0, Open
Journal article
Exploring the arsenic removal potential of various biosorbents from water
Environment international, Vol.123, pp.567-579
02/2019
PMID: 30622081
Metrics
13 Record Views
UN Sustainable Development Goals (SDGs)
This output has contributed to the advancement of the following goals:
Source: InCites
Abstract
Globally, contamination of groundwater with toxic arsenic (As) is an environmental and public health issue given to its carcinogenic properties, thereby threatening millions of people relying on drinking As-contaminated well water. Here, we explored the efficiency of various biosorbents (egg shell, java plum seed, water chestnut shell, corn cob, tea waste and pomegranate peel) for arsenate (As(V)) and arsenite (As(III)) removal from As-contaminated water. Significantly, egg shell and java plum seed displayed the greatest As(III) elimination (78–87%) at 7 pH followed by water chestnut shell (75%), corn cob (67%), tea waste (74%) and pomegranate peel (65%). In contrast, 71% and 67% of As(V) was removed at pH 4.1 and 5.3 by egg shell and java plum seed, respectively. The maximum As(V) and As(III) sorption by all the biosorbents was obtained, notably for egg shell and java plum seed, after 2 h contact time. Langmuir isotherm and pseudo-second order models best fitted the sorption data for both forms of As. The –OH, –COOH, –NH2 and sulfur-bearing surface functional groups were possibly involved for As(III) and As(V) removal by biosorbents. The scanning electron microscopy combined with the energy dispersive X-ray spectroscopy (SEM-EDX) analysis showed that the heterogeneous surface of biosorbents, possessing rough and irregular areas, could have led to As sorption. Both As(V) and As(III) were successfully desorbed (up to 97%) from the biosorbents in four sorption/desorption (regeneration) cycles. This pilot-scale study highlights that egg shell and java plum seed have the greatest ability to remove both As species from As-contaminated drinking water. Importantly, these findings provide insights to develop an inexpensive, effective and sustainable filtration technology for the treatment of As in drinking water, particularly in developing countries like Pakistan.
[Display omitted]
•Egg shell and java plum seed showed the maximum removal of arsenite and arsenate.•Langmuir and pseudo-first order models best fitted arsenite and arsenate sorption.•FTIR spectra showed arsenic association with functional groups of biosorbents.•Arsenite and arsenate were desorbed (up to 97%) from the egg shell in four cycles.•Health risk can be reduced from drinking water using biosorbents for arsenic filtration.
Details
- Title
- Exploring the arsenic removal potential of various biosorbents from water
- Creators
- Muhammad Bilal Shakoor - University of Agriculture FaisalabadNabeel Khan Niazi - University of Agriculture FaisalabadIrshad Bibi - University of Agriculture FaisalabadMuhammad Shahid - COMSATS University IslamabadZulfiqar Ahmad Saqib - University of Agriculture FaisalabadMuhammad Farrakh Nawaz - University of Agriculture FaisalabadSabry M Shaheen - University of KafrelsheikhHailong Wang - Zhejiang A & F UniversityDaniel C.W Tsang - Hong Kong Polytechnic University (The)Jochen Bundschuh - University of Southern QueenslandYong Sik Ok - University of Agriculture FaisalabadJörg Rinklebe - University of Wuppertal
- Publication Details
- Environment international, Vol.123, pp.567-579
- Publisher
- Elsevier Ltd
- Grant note
- The authors are thankful to the Grand Challenges Canada–Stars in Global Health (GCC Grant No. S5 0433-01), International Foundation for Science (IFS Grant No. W/5698-1) and Higher Education Commission, Pakistan (Project Nos. 6425/Punjab/NRPU/R&D/HEC/2016 and 6396/Punjab/NRPU/R&D/HEC/2016) for providing financial support. Drs Nabeel Khan Niazi and Irshad Bibi are thankful to the University of Agriculture Faisalabad. Thanks are also extended to the German Alexander von Humboldt Foundation for the financial support of the postdoctoral fellowship of Dr. Bibi (Ref 3.5 - PAK - 1164117 - GFHERMES-P) at the University of Bremen, Germany, and the experienced researcher's fellowship of Prof. Dr. Shaheen (Ref 3.4 - EGY - 1185373 - GF-E) at the University of Wuppertal, Germany. We also acknowledge ‘Ministère des Affaires Etrangères et du Développement International Sous-direction de l'Enseignement Supérieur et de la Recherche’, France for sponsoring mobility grant (36099TC) under Bio-Asie Program 2016.
- Identifiers
- 991012951093902368
- Copyright
- © 2018 Elsevier Ltd. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/BY-NC-ND/4.0/).
- Academic Unit
- School of Environment, Science and Engineering; Faculty of Science and Engineering
- Language
- English
- Resource Type
- Journal article