Study on Genetic Engineering Bacteria's Promoting Effect to Heavy Metal Leaching

Qiang Hao

doi:10.4028/www.scientific.net/AMR.864-867.1847

Paper Titles

Voluntary Environmental Agreements Applied to Jingzhou Textile and Dyeing Enterprises for Pollution Prevention and Controls
p.1826

Research on Mitigating Methods to Reduce Civil Aviation Emission
p.1830

The Comparison of Substrate Changes in Microbial Fuel Cells Using Excess Sludge and Simple Anaerobic Digestion
p.1839

Reducing Building Waste by Reconstruction and Reutilization
p.1843

Study on Genetic Engineering Bacteria's Promoting Effect to Heavy Metal Leaching
p.1847

Study on Thermal Characteristics of Waste Wooden Sleeper
p.1851

Effects of Metal Oxides during Pyrolysis Sludge by Kinetic Analysis
p.1854

Pharmaceutical Content of Municipal Solid Waste in Kaohsiung City, Taiwan
p.1859

Influence of Bulking Agents on Odor Production during Aerobic Composting of Sewage Sludge
p.1868

HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 864-867Study on Genetic Engineering Bacteria's Promoting...

Study on Genetic Engineering Bacteria's Promoting Effect to Heavy Metal Leaching

Abstract:

We studyed on the “the binding capacity of EPS and Fe³⁺”,“the promoting effect experiment of EPS-Fe³⁺ to the leaching of Cr, Pb”and the “distribution characteristics of heavy metals in EPS,inside and outside cells”.Proved that large molecular EPS (MT) and Fe³⁺ tend to form a stable complex EPS (MT)-Fe³⁺. Unit mass of macromolecular EPS binding ability to Fe³⁺ is 10.7mg/mgEPS.And with the addition of EPS (MT)-Fe³⁺ complex, Cr, Pb in sludge by bioleaching removal rate increased by 1.48, 1.25 times.The distribution characteristics of heavy metal ions in the cell into three types: type EPS, intracellular type, balance type.