REMEDIATION OF CHROMIUM CONTAMINATION BY IN-SITU GEOCHEMICAL FIXATION USING SMBS IN TAMIL NADU CHROMATE AND CHEMICALS LIMITED IN SIPCOT INDUSTRIAL ESTATE, RANIPET, VELLORE DISTRICT, TAMILNADU, INDIA

Disposal of the huge waste was the next problem to be addressed. It is necessary to suggest remedial measures for containment of the chromium pollution. The chromium containing waste dump is spread inside the TCCL factory premises almost on all sides. Because of this environmental degradation, we had taken initiative to make remediation on-site. As a remedial measure, Geochemical fixation method may be adopted for decontamination of hexavalent chromium. A reducing agent of Sodium Meta Bi Sulphate (SMBS - Na2S2O5) was used for the reduction of hexavalent chromium.