Phytoremediation of Ex Mining Lake Water in Constructed Wetland by Perennial Plants

Abstract

Poor water quality due to heavy metal content in Tasik Puteri can harm people that directly get into contact with it for recreational activities. Thus, this study investigated the phytoremediation potential of locally aquatic plants to remediate the lake water. Scirpus grosus and Eleocharis dulcis were planted in constructed wetlands for 28 days. The water analysis was performed to measure turbidity, total iron (TI), total phosphorus (TP), chemical oxygen demand (COD) and electrical conductivity (EC). After 28 days, S. grosus was observed to be healthier. Fluctuation readings were recorded in turbidity value and considerable decrements in TI, TP, COD and EC. S. grosus exhibits higher removal of TI, EC and turbidity which 95.45%, 32.89% and 40.00% removal respectively, whilst E. dulcis removed 65.28% of COD. Both plants demonstrated comparable TP removal with 92.04% and 91.04% by S. grosus and E. dulcis respectively. In conclusion, S. grosus is proven as the more effective phytoremediator.

Potential of Typha latifolia L. for phytofiltration of iron-contaminated waters in laboratory-scale constructed microcosm conditions

“…The techniques of phytoremediation using wetland plants thus represent an ecofriendly, aesthetically appealing, low-cost technique that can be useful for the cleanup of numerous environmental pollutants that are present in low to moderate levels (EPA 2001). Numerous studies have highlighted the potential of aquatic macrophytes to remove metals from different polluted environment (Meitei and Prasad 2016a, b;Johnson et al 2019;Dahija et al 2019;Ashraf et al 2020;Borralho et al 2020;Khalid and Ganjo 2020;Sidek et al 2020). The aquatic vegetation of the wetlands via the process of phytoextraction sequesters the metals into their biomass and thus helps purify the contaminated environment.…”

A Preliminary Study of Potential Aquatic Macrophytes in Phytoremediation of Lead in The Muar River

“…Research in this areas is usually carried out using conventional methods such as adsorption by activated carbon [6], ion-exchange by catalyst [7], electrodialysis [8], chemical precipitation [9] and reverse osmosis [10]. These methods are well-established, but most of them need sophisticated instruments, expertise, are energyintensive and produce secondary wastes [11,12] Phytoremediation is envisaged to be inexpensive, clean, easy to conduct, and efficient in absorbing and trapping a wide range of organic and inorganic pollutants [13]. Furthermore, phytoremediation is also environmental friendly for water treatment, hence its increased demand in both practical and academic applications [14].…”