Study on Environmental Materials with <i>Aspergillus niger</i> as Adsorbent for Sequestering Pb(II) from Aqueous Solution

Abstract

Mining, smelting, processing, and industrial production emissions of waste heavy metal pollution is serious, and the enrichment of heavy metals, it is difficult to be degraded in the natural environment. Conventional methods for removing metals may be ineffective extremely expensive. not eco-friendly.Based on wastes recycling and circular economy, this thesis studied the characteristics of industrial fermentation waste A.niger as adsorbent for sequestering Pb(II) from aqueous solution. .Optimum biosorption was observed to be 72％ at pH 5.5,biosorbent dose 1.5 mg／L, initial Pb(II)concentration 250 mg／L.A.niger can be used as a new economic and eco-friendly environmental materials of metal adsorption.

Consequences of Arsenic Contamination on Plants and Mycoremediation-Mediated Arsenic Stress Tolerance for Sustainable Agriculture

“…This involves the combination of several processes such as entrapment, chelation, micro-precipitation, and complexation as a remedial activity from contaminated sites [ 8 ]. The extreme biosorption value was documented around 108.08 mg g −1 at As concentration of 600 mg L −1 [ 150 ]. The Aspergillus candidus was found to remove the highest amount of As after three days of growth in presence of 25 mg L −1 (trivalent) and 50 mg L −1 of pentavalent arsenic [ 151 ].…”

Examining the properties of dry magnetically controlled biosorbent, obtained by the method of mechanical and magnetohydrodynamic agitation

“…An effective way to remove ions of Pb(II) from aqueous solution using adsorbent from Aspergillus Niger was also investigated [14]. The biomass of native yeast Saccharomyces CEREVISIAE is used to remove lead, mercury and nickel in the form of ions, dissolved in water [15].…”