Statistics and Probability Distribution of Total Coliforms in Wastewater
하수에서의 대장균수 확률분포 특성 분석
- 한국농공학회지 Volume 55 Issue 3 Pages.105-111 2013
- Jun, Sang Min, Song, Inhong, Jeong, Han Seok, Kang, Moon Seong, Park, Seung Woo
Abstract
Probability distribution of microbes in wastewater is a crucial factor to be determined for microbial risk assessment associated with its reuse. The objective of this study was to investigate probability distribution of an indicator microorganism in wastewater. Daily total coliform counts measured from nationwide wastewater treatment plants in 2010 by the Ministry of Environment were used for statistical analysis. Basic statistics and probability distributions were estimated in the three different spatial scales using the MS Excel software and FARD2006 model. Overall, wastewater from manure and livestock treatment plants demonstrated greater median coliform counts than from sewage and village treatment plants. Generalized logistic (GLO) and 2-parameter Weibull (WBU2) appeared to be the two probability distributions that fitted best for total coliform numbers in wastewater. The study results of microbial statistics and probability distributions would provide useful data for quantitative assessment of microbial risk from agricultural wastewater reuse.
https://doi.org/10.5389/KSAE.2013.55.3.105