The Potential of Indigenous Bacteria for Removing Cadmium from Industrial Wastewater in Lawang, East Java

Abstract

Heavy metals have been used in various areas around the world especially in the industrial sector. Heavy metals contamination is very dangerous for ecosystem because of its toxicity for some organisms. Cadmium (Cd) is a dangerous metal pollutant that can cause remarkable diverse of toxic effects, in particular for humans and animals. The use of bacteria as bioremediation agents has been widely studied because more efficient, less cost, and environmentally friendly strategy. This present study aimed to isolate and identify Cd-resistant bacteria from the industrial disposal site. Wastewater samples were collected from disposal site of agar flour industry in Lawang Malang, East Java. The collected wastewater effluent was analyzed for physicochemical properties. Isolation of Cd-resistant bacteria was carried out using serial dilution. Bacterial isolates were observed and tested for their effects on the content of Cd. The content of Cd was tested daily using Atomic Absorption Spectroscopy (AAS) for seven consecutive days.

Isolation and characterization of potential indigenous bacteria from the former bauxite mining area for heavy metal reduction

“…Numerous studies investigated the potential of bacteria in nature as heavy metal bioremediation agents (Pambudiono et al 2018;Anno et al 2020;Wang et al 2020;Oziegbe et al 2021). Only limited data presently exist on indigenous bacteria from former bauxite mining areas that possess the ability to bio-remove Pb and Cr.…”