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Effect of nutrients on biomass activity in degradation of sulfate laden organics

Paper ID Volume ID Publish Year Pages File Format Full-Text
36187 45123 2006 7 PDF Available
Title
Effect of nutrients on biomass activity in degradation of sulfate laden organics
Abstract

The effects of key nutrients iron (Fe), nickel (Ni), zinc (Zn), cobalt (Co), and their combinations were investigated on the total methanogenic activity (TMA) and total sulfidogenic activity (TSA) of biomass metabolizing synthetic sulfate laden organics (COD/SO42− ratio 3.5) in batch assays. In Phase I of the study, TMA and TSA were assessed twice for four feed changes in Cycle-I and Cycle-II. Nutrient combinations Fe–Co, Fe–Ni–Zn, Ni–Zn–Co and Zn have shown maximum TMA and/or TSA. Antagonistic effects of Ni on Co uptake by methane producing bacteria (MPB) and Zn uptake by sulfate reducing bacteria (SRB) were observed. In Phase II study, sustainability of effects of nutrients for best combinations was assessed in long duration study involving 10 feed changes. Assays with Fe and Co supplementation have shown maximum stimulation of MPB and SRB.

Keywords
Biomass activity; Batch assays; Nutrients; Methane producing bacteria; Sulfate reducing bacteria; Sulfate laden organics
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Effect of nutrients on biomass activity in degradation of sulfate laden organics
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Publisher
Database: Elsevier - ScienceDirect
Journal: Process Biochemistry - Volume 41, Issue 2, February 2006, Pages 489–495
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Bioengineering
Get Full-Text Now
Don't Miss Today's Special Offer
Price was $35.95
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Price after discount Only $4.95
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Full-text PDF Download
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Any Questions? feel free to contact us