1. Deposit of zinc and manganese in an aqueous environment mediated by microbial mats
- Author
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Judith Bender, Jon R. Washington, Peter Phillips, Bianca Graves, and Godfried M. K. Abotsi
- Subjects
Environmental Engineering ,Aqueous solution ,Chemistry ,Ecological Modeling ,Environmental engineering ,chemistry.chemical_element ,Glass wool ,Zinc ,Manganese ,Pollution ,Anoxic waters ,Redox ,Metal ,Environmental chemistry ,visual_art ,visual_art.visual_art_medium ,Environmental Chemistry ,Effluent ,Water Science and Technology - Abstract
Microbial mats have been developed to sequester heavy metals from contaminated water. Mixed populations of photosynthetic and heterotrophic bacteria, dominated by Scillatoria spp., were developed for metal tolerance and integrated into a durable, self-sustaining community of microbes stimulated by and attached to ensiled grass. The mat was immobilized on glass wool and layered in flow-through baffled tanks. After allowing 8 weeks for the maturation of the mat, mixed solutions of Zn and Mn (15ā16 mg Lā1) were passed through a three-tank experimental series. Effluent from each tank was first sampled and then applied to the next tank. This procedure was repeated in triplicate and with six applications of new metal solution per three-tank series. By the third tank, the target metal concentration
- Published
- 1994