Publication Type : Journal Article
Publisher : Journal of Environmental Engineering (United States)
Source : Journal of Environmental Engineering (United States), American Society of Civil Engineers (ASCE), Volume 145, Number 9 (2019)
Url : https://www2.scopus.com/inward/record.uri?eid=2-s2.0-85068221426&doi=10.1061%2f%28ASCE%29EE.1943-7870.0001551&partnerID=40&md5=60f9829e994efb1938af4d2edaab3139
Keywords : Chemicals removal (water treatment), Concretes, Electroplating, Electroplating industry, Electroplating shops, Empty bed contact time, Graphene, Heavy metals, Heavy metals removals, leaching, Metal ions, Pervious concrete, Water heads
Campus : Coimbatore
School : School of Engineering
Department : Chemical, Civil
Year : 2019
The effects of an operating water head (OWH) and reduced graphene oxide (RGO) addition on the pervious concrete filter (PCF) and heavy metals interaction were investigated in the present study. Five simulated wastewaters containing Cd, Zn, Cu, Pb, and these four ions mixed together were filtered by PCF monoliths, considering the influence of three OWHs, viz. 30 cm, 7.5 cm, and trickling water head. The metal ions fixation degree increased with decreasing levels of OWH, which indicates that empty bed contact time influences PCF performance. Additionally, heavy metals removal and leaching from 0.06 wt% RGO modified PCF (G-PCF) and plain PCF were examined by first passing the five wastewater samples, immediately followed with strong acidic water, while maintaining the same flow and time. As a consequence of acid water passage, the fixated ions were seen to leach out from PCFs, but the RGO's strong reinforcement substantially reduced such leaching degree and additionally improved the simultaneous removal of four heavy metals. Although the estimated cost of G-PCF was relatively higher than plain PCF, both these filters appear highly efficient and inexpensive, unlike treatment units that are currently used by the electroplating industry for heavy metals removal. © 2019 American Society of Civil Engineers.
Cite this Research Publication : M. Muthu, K. Ramakrishnan, C., Santhanam, M., Dr. Murali Rangarajan, and Kumar, M., “Heavy Metal Removal and Leaching from Pervious Concrete Filter: Influence of Operating Water Head and Reduced Graphene Oxide Addition”, Journal of Environmental Engineering (United States), vol. 145, 2019.