The Microfloral Distribution during Composting of Residential Solid Waste

  • Rachana Sharma Central Department of Zoology, Tribhuvan University, Kirtipur, Kathmandu
  • Ananda S. Tamrakar Central Department of Zoology, Tribhuvan University, Kirtipur, Kathmandu
  • R. P. Adhikari Central Department of Microbiology, Tribhuvan University, Kirtipur, Kathmandu
  • Sangeeta Rajbhandari Central Department of Botany Tribhuvan University, Kiripur, Kathmandu

Abstract

A field experiment of composting was conducted at Teku area, Kathmandu in 1996. The samples were collected from two separate zones of composting mass. The microbial count was carried out in a specific time of experiment. Total bacterial and Bacillus count were found to be highest in the thermophilic stage i.e. 2 x 1010 cfu/g. The coliform bacterial count result was minimum in each successive stapes i.e. from 6 x l05 cfu/g to 1 x 105 cfu/g. Simultaneously, 16 different species of fungi were isolated and the highest count was 1 x 107 cfu/g. In all stages of composting, the count was higher in the upper zone than in the lower zone.