Analysis on Measures of Sludge (Mixed Liquid) Return about Process of Nitrogen and Phosphorus Removal
XIAN Ji -Cheng, GAO Xu, GUO Jing- Song, ZHOU Jian
DOI:10.11835/j.issn.1674-4764.2006.02.036
Received October 12, 2005,Revised October 12, 2005, Accepted , Available online July 01, 2015
Volume ,2006,Pages 132-136
- Abstract
Three measures of sludge(mixed liquid) return(pump-lift,impeller-lift and air-lift) about nitrogen and phosphorus removal processes are introduced and analyzed.The measures of impeller-lift and air-lift can not only simplify processes and integrate the devices for nitrogen and phosphorus removal so that the land occupation and investment demand for the plant are reduced,but also can be easily operated with less electricity consumption,which are considered to be promising for application in medium-sized and mini-type plant of wastewater treatment.