K. Mikawa et al., HIGH-RATE AND COMPACT 2-STAGE POSTDENITRIFICATION PROCESS WITH SINGLE-SLUDGE PRE-DENITRIFICATION, Water science and technology, 34(1-2), 1996, pp. 467-475
Citations number
4
Categorie Soggetti
Water Resources","Environmental Sciences","Engineering, Civil
For the sewage treatment plants near rivers and closed water bodies in
urbanized areas there is a growing demand for introduction of advance
d treatment processes for nitrogen and phosphorus removal for water qu
ality conservation and environmental protection. In order to achieve t
he total nitrogen content of below 10 mg/L in effluent, a compact sing
le sludge pre-denitrification process by dosing immobilized pellets in
the nitrification tank (PEGASUS process) has been already developed (
Tanaka et al. 1992). Furthermore, a two-stage PEGASUS process and a PE
GASUS process with post-denitrification were developed and investigate
d for nitrogen removal. Both processes achieved the total nitrogen of
less than 5mg/L. Copyright (C) 1996 IAWQ.