Studies on potential of Portland cement mortar for binding of waterworks sludge to reduce heavy metal leaching
The investigation of heavy metal leaching and physicochemical properties of cement-solidified waterworks sludge (CMWWS) formed by incorporating waterworks sludge (WWS) into cement mortar was carried out. The chemical composition, compressive strength and other physicochemical properties of the CMWWS...
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Springer India
2016
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| _version_ | 1796862132851048448 |
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| author | Thanalechumi, P. Mohd. Yusoff, A. R. Ponraj, M. Awab, H. |
| author_facet | Thanalechumi, P. Mohd. Yusoff, A. R. Ponraj, M. Awab, H. |
| author_sort | Thanalechumi, P. |
| collection | ePrints |
| description | The investigation of heavy metal leaching and physicochemical properties of cement-solidified waterworks sludge (CMWWS) formed by incorporating waterworks sludge (WWS) into cement mortar was carried out. The chemical composition, compressive strength and other physicochemical properties of the CMWWS cube specimens were determined using field emission scanning electron microscopy (FESEM), X-ray diffractometry (XRD) and Fourier transform-infrared spectroscopy (FTIR). The major type of chemical components present in CMWWS was found to be Al and Fe. The increasing amount of WWS added to cement mortar resulted in the increasing of organic matter, urchin-like morphology and clear peak intensity. At the end of 28Â days of curing, the soaking solution became strongly basic and CMWWS cube specimens leached out higher amount of heavy metals. The compressive strength of CMWWS increased up to a WWS percentage of 10%, and basic (pHÂ >Â 7) curing solution was found to be better than water for curing purposes. It is concluded that solidification–stabilisation (S/S) technique is able to effectively reduce the leaching of heavy metals from the WWS and CMWWS containing up to 10% WWS can be used as construction material. |
| first_indexed | 2024-03-05T20:06:57Z |
| format | Article |
| id | utm.eprints-73774 |
| institution | Universiti Teknologi Malaysia - ePrints |
| last_indexed | 2024-03-05T20:06:57Z |
| publishDate | 2016 |
| publisher | Springer India |
| record_format | dspace |
| spelling | utm.eprints-737742017-11-18T05:01:59Z http://eprints.utm.my/73774/ Studies on potential of Portland cement mortar for binding of waterworks sludge to reduce heavy metal leaching Thanalechumi, P. Mohd. Yusoff, A. R. Ponraj, M. Awab, H. QD Chemistry The investigation of heavy metal leaching and physicochemical properties of cement-solidified waterworks sludge (CMWWS) formed by incorporating waterworks sludge (WWS) into cement mortar was carried out. The chemical composition, compressive strength and other physicochemical properties of the CMWWS cube specimens were determined using field emission scanning electron microscopy (FESEM), X-ray diffractometry (XRD) and Fourier transform-infrared spectroscopy (FTIR). The major type of chemical components present in CMWWS was found to be Al and Fe. The increasing amount of WWS added to cement mortar resulted in the increasing of organic matter, urchin-like morphology and clear peak intensity. At the end of 28Â days of curing, the soaking solution became strongly basic and CMWWS cube specimens leached out higher amount of heavy metals. The compressive strength of CMWWS increased up to a WWS percentage of 10%, and basic (pHÂ >Â 7) curing solution was found to be better than water for curing purposes. It is concluded that solidification–stabilisation (S/S) technique is able to effectively reduce the leaching of heavy metals from the WWS and CMWWS containing up to 10% WWS can be used as construction material. Springer India 2016 Article PeerReviewed Thanalechumi, P. and Mohd. Yusoff, A. R. and Ponraj, M. and Awab, H. (2016) Studies on potential of Portland cement mortar for binding of waterworks sludge to reduce heavy metal leaching. Sadhana - Academy Proceedings in Engineering Sciences, 41 (3). pp. 359-367. ISSN 0256-2499 https://www.scopus.com/inward/record.uri?eid=2-s2.0-84962187931&doi=10.1007%2fs12046-016-0472-0&partnerID=40&md5=432cb828e2ad88de7c7023e2ef6a77e6 |
| spellingShingle | QD Chemistry Thanalechumi, P. Mohd. Yusoff, A. R. Ponraj, M. Awab, H. Studies on potential of Portland cement mortar for binding of waterworks sludge to reduce heavy metal leaching |
| title | Studies on potential of Portland cement mortar for binding of waterworks sludge to reduce heavy metal leaching |
| title_full | Studies on potential of Portland cement mortar for binding of waterworks sludge to reduce heavy metal leaching |
| title_fullStr | Studies on potential of Portland cement mortar for binding of waterworks sludge to reduce heavy metal leaching |
| title_full_unstemmed | Studies on potential of Portland cement mortar for binding of waterworks sludge to reduce heavy metal leaching |
| title_short | Studies on potential of Portland cement mortar for binding of waterworks sludge to reduce heavy metal leaching |
| title_sort | studies on potential of portland cement mortar for binding of waterworks sludge to reduce heavy metal leaching |
| topic | QD Chemistry |
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