Development of Highly Efficient Wastewater Disinfection System of Using Quick Monitoring System for Coliforms

Autor:	Seiji Furukawa, Yoshitaka Kawaai, Ishida Toshiro, Akira Morikawa, Satoshi Ueyama
Rok vydání:	2007
Předmět:	Rainy weather chemistry.chemical_compound Ozone Waste management chemistry Wastewater Disinfectant Environmental science Untreated wastewater Sewage treatment Combined sewer Monitoring system
Zdroj:	Journal of Japan Society on Water Environment. 30:139-144
ISSN:	1881-3690 0916-8958
DOI:	10.2965/jswe.30.139
Popis:	A highly efficient ozone disinfection system was developed to decreasing the influence of the overflow of untreated wastewater during rainy weather at pump stations and wastewater treatment plants in a combined sewer system. The ozone disinfection system is a feed forward system that controls the amount of ozone with the result of measuring the number of coliforms using the quick monitoring system within 10 minutes. Simulations for calculating the effect of saving disinfectant on the ozone disinfection model were executed using the already obtained dates. The result of the calculation showed that the amount of ozone is expected to be reduced by 21-41% using this new quick disinfection system compared with the former flow proportional control system. Two minutes of disinfection time was sufficient for the quick disinfection of coliforms, when the quick monitoring system detected the number of coliforms within ten minutes. These results lead the conclusion that this system is good for the environment and saves cost by decreasing the amount of money spent on disinfectants for coliforms.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::70c443858603efa57b5159b5bdefd43d https://doi.org/10.2965/jswe.30.139 Zobrazit plný text záznamu