Environmental & Analytical Toxicology

Leena Bharadwaj

Publications

• Research Article
  TiO2 Mediated Photocatalysis of Giemsa Dye: An Approach towards Biotechnology Laboratory Effluent Treatment
  Author(s): Leena Bharadwaj, Mohit Bhardwaj and Mohan Kumar SharmaLeena Bharadwaj, Mohit Bhardwaj and Mohan Kumar Sharma
  
  Photocatalysis offers low cost and durable treatment to dyes polluted effluent. But sometimes photocatalyzed dye intermediates appear to be more toxic than parent dye molecule. Present investigation uses suspended TiO2 nanoparticles and sunlight irradiation for photocatalytic treatment of Giemsa dye at optimum pH. Giemsa dye has wide applications in molecular biology, cytology and histology laboratories across the world. Surplus and used dye is discharged in sink drain which is likely to cause hazardous concerns to environment. Paper analyzes toxicity concerns of treated and untreated Giemsa dye. Bioassays incorporating agar well diffusion assay and seed germination were employed to check the toxicity of water. Significant changes were noted in alkalinity, BOD, COD, Ca2+ , Mg2+, NO3-, SO42- ion concentration, hardness, temperature, turbidity and pH; and compared with standards for dri.. Read More»
  DOI: 10.4172/2161-0525.1000113

  Abstract PDF