Hydrology: Current Research

HN Verma

Publications

• Research Article
  Influence of Ultrasonic Treatment in Sewage Sludge
  Author(s): Kavindra Kumar Kesari, Sanjay Kumar, HN Verma and J BehariKavindra Kumar Kesari, Sanjay Kumar, HN Verma and J Behari
  
  Physical methods like ultrasound, ultraviolet and nanoparticles are very useful in wastewater purification and recycling. The ultrasound irradiation in a liquid leads to the acoustic cavitation phenomenon, which can affect a number of mechanical, acoustic, chemical and biological changes in waste analysis. In present study, ultrasonic irradiation treatment technique was used to treat the sewage sludge effluent, which was collected from Delhi and another sample of pure E-coli strain was processed. Samples were treated in ultrasonic bath at 35 and 130 kHz of irradiation for different time periods of 5 min, 10 min, 20 min and 30 min including control (untreated). Treated samples were tested for different parameters, viz. bacterial cell count, chemical oxygen demand (COD), degree of disintegration COD (DDCOD), scanning electron microscope (SEM), optimum density (OD) of cells and reactive .. Read More»
  DOI: 10.4172/2157-7587.1000115

  Abstract PDF