Applied Biochemistry and Biotechnology

, Volume 6, Issue 1, pp 3–13 | Cite as

Denitrification and removal of heavy metals from waste water by immobilized microorganisms

  • R. P. Tengerdy
  • J. E. Johnson
  • J. Holló
  • J. Tóth
Original Articles


Pseudomonas fluorescens, immobilized on soft polyvinyl chloride granules containing up to 35% softeners as carbon source, was used for simultaneous removal of nitrate and heavy metals. In typical continuous column operation, a 100 mg/L nitrate input solution was reduced to a 20 mg/L output at a feeding rate of 1500 mL/h, with a capacity of 14 kg/day/m3, and with an efficiency of 79%. In the same column, Pb(NO3)2 concentration was reduced from 1.0 to 0.05−0.1 mg/L and ZnSO4 concentration was reduced from 10 to 5 mg/L.Pseudomonas aeruginosa immobilized on an O2 plasma-treated melt blown polypropylene web was used for removing 95% of a 1.7 nCi PuCl4 activity from a nuclear plant waste water in a batch operation.

Index Entries

Pseudomonas fluorescens, in waste water denitrification Pseudomonas fluorescens, in heavy metal removal from waste water immobilized bacteria, in waste water treatment bacteria, immobilized, in waste water treatment denitrification, of waste water by immobilized microbes metals, removal from waste water by microbes microbes, immobilized, in waste water denitrification microbes, immobilized, in heavy metal removal from waste water plutonium, removal from waste water by immobilized microbes 


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Copyright information

© The Humana Press Inc 1981

Authors and Affiliations

  • R. P. Tengerdy
    • 1
  • J. E. Johnson
    • 2
  • J. Holló
    • 3
  • J. Tóth
    • 3
  1. 1.Department of MicrobiologyColorado State UniversityFort Collins
  2. 2.Department of Radiation BiologyColorado State UniversityFort Collins
  3. 3.Institute of Agricultural Chemical TechnologyTechnical University of BudapestBudapestHungary

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