HEXAVALENT CHROMIUM REDUCTION FROM CONTAMINATED GROUNDWATER AND FROM WASTEWATERS

Abstract: 

Background: Chromium is one of the most toxic heavy metals discharged into the environment through various industrial wastewaters, and has become a serious health problem. However, recent studies revealed that Cr(VI) could also be formed in the environment through natural processes. At present, the most commonly used technology for treatment of heavy metals in wastewaters is chemical precipitation. However, this method is not completely satisfactory because of the large amount of secondary waste products generated due to the use of various reagents. Biological treatments arouse great interest because of their lower impact on the environment as opposed to chemical treatments. Recent studies have shown that certain species of bacteria are capable of reducing Cr(VI) into the much less toxic and less mobile Cr(III).

Aim: the integrated study of Cr(VI) reduction in potable water and wastewater.

The optimal physicochemical reduction methods will be studied as well as biological ones. The identification of microbial species capable of reducing Cr(VI) and their molecular characterization is of crucial importance. Detailed modeling of the selected physicochemical and biological methods would be a useful tool for better understanding of the mechanisms of Cr(VI) reduction processes, the design of proper reactors and predicting their operation.

Workpackages:

  1. Cr(VI) reduction from potable water and wastewater using biological methods.
  2. Cr(VI) reduction from potable water and wastewater using physicochemical methods.
  3. Process modeling and reactor design.
  4. Promotion and dissemination of project results - project management.

Expected results:

  1. The development of viable physicochemical methods and the isolation and identification of pure and mixed cultures for Cr(VI) reduction,
  2. the development of proper mathematical models for process operation prediction and reactor design, and
  3. the development of a laboratory network for further collaboration on environmental issues.

Project info

Acronym:
CREDUCTION
Coordinating Institution:
University of Ioannina
Scientific Coordinator:
Vayenas Dimitris
Research Team 2 Leader:
Mitrakas Manassis
Research Team 3 Leader:
Yiangou Minas
Research Team 4 Leader:
Lyberatos Gerasimos

Stats

I.D.:
1332
Mis:
375631
Duration (months):
36
Budget:
600 000.00
Diavgeia:
ΑΔΑ: Β4ΩΖ9-ΒΤΑ

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