Mimatun Nasihah, Tri Ardyati, Dian Siswanto, Catur Retnaningdyah
Lead (Pb) pollution harms aquatic ecosystems, especially when Pb pollutes irrigation water. Hence, it needs to be addressed, one of which is by phytoremediation. This research aims to evaluate the success of the phytoremediation of Pb-contaminated irrigation water using local hydromacrophytes in a polyculture through a batch culture system. The results of the research showed that local hydromacrophytes in polyculture were able to improve the quality of irrigation water as indicated by a decrease in Total Suspended Solids (TSS), conductivity, Biochemical Oxygen Demand (BOD), and nitrate levels on the 7th day and Total Dissolve Solid (TDS), orthophosphate, Total Organic Matter (TOM), and Pb on the 14th day. Meanwhile, Chemical Oxygen Demand (COD) decreased on the 22nd day, while Dissolved Oxygen (DO) increased since the seventh day of incubation. The results of the one-way ANOVA on bacterial abundance showed a significant increase on day 28 after incubation, which notes that bacteria play an active role in the phytoremediation process while the environment supports bacterial activity. The results of Next-Generation Sequencing (NGS) analysis after 28 days of incubation showed that irrigation water was dominated by more than 50% of the Actinobacteria genus. This research provides new knowledge about the role of hydromacrophytes and bacteria in the phytoremediation process of Pb-polluted irrigation water. © UMT Press
Biology Doctoral Program, Biology Department, Faculty of Mathematics and Natural Sciences, Universitas Brawijaya, East Java, Malang, 65145, Indonesia; Biology Department, Faculty of Mathematics and Natural Sciences, Universitas Brawijaya, East Java, Malang, 65145, Indonesia
