Detection of TiO2Nanoparticles in Municipal Sewage Treatment Plant and Their Characterization Using Single Particle ICP-MS.
Establishment of analytical methods for detection and characterization of nanoparticles in the environment are gaining prominence across the globe. The present study was designed to quantify titanium (Ti) and to characterize titanium dioxide nanoparticles (TNP) from a municipal sewage treatment plant, by inductively coupled plasma mass spectrometry (ICP-MS). The concentrations of Ti & TNP were 1085 & 13.6 mg/kg in the influent sewage and 298 & 3.3 mg/kg in the aeration tank contents, respectively. The size of TNP ranged between 71-145 nm in the sludge fraction. Determining environmentally realistic concentrations of TNP could serve as a tracer material for characterization of those nanomaterials with similar size and aggregation properties. Furthermore, inference of Ti and TNP in municipal sewage in the study will also help in environmental risk assessment of nanomaterials.
Department of Biological Sciences, Birla Institute of Technology and Science Pilani, Hyderabad Campus, Hyderabad, Telangana, 500078, India.
Siva Prasad
SP
Bitragunta
Department of Biological Sciences, Birla Institute of Technology and Science Pilani, Hyderabad Campus, Hyderabad, Telangana, 500078, India. sangan@hyderabad.bits-pilani.ac.in.
Sankar Ganesh
SG
Palani
Verder Scientific Pvt. Ltd., Hyderabad, Telangana, 500076, India.
Anil
A
Gopala
Department of Marine Science, University of Calcutta, Calcutta, West Bengal, 700019, India.
Santosh Kumar
SK
Sarkar
Central Facilities for Research and Development, Osmania University, Hyderabad, Telangana, 500007, India.
Venugopal Reddy
VR
Kandukuri
D013058:Mass Spectrometry / Q000379:methods; D053768:Metal Nanoparticles / Q000032:analysis*; D010316:Particle Size; D012722:Sewage / Q000737:chemistry*; D014025:Titanium / Q000032:analysis*
D012722:Sewage; C009495:titanium dioxide; D014025:Titanium
Sewage; Single-particle-ICP-MS; Sludge; Titanium dioxide (TiO2) nanoparticles