TY - JOUR
T1 - Efficient treatment of real textile wastewater
T2 - Performance of activated sludge and biofilter systems with a high-rate filter as a pre-treatment process
AU - Kang, Yongtae
AU - Won, Taejun
AU - Hyun, Kilsoo
PY - 2012/3
Y1 - 2012/3
N2 - This study was conducted to evaluate the performance of High-Rate Filter (HRF) as an alternative process to Conventional Primary Sedimentation (CPS) processes and the performance of different configurations of activated sludge and biofilter systems with anaerobic/aerobic zones for efficient textile wastewater treatment. The performance efficiency of the HRF with much shorter hydraulic retention time (HRT: 0. 3 h) was very similar to that of the CPS process with a longer HRT of 3. 0 h. The highest efficiencies of the systems were achieved by configuring anoxic:anaerobic:oxic:oxic zones for an activated sludge system and anaerobic:oxic: anoxic zones for a biofilter system, respectively. In particular, under the most efficient configurations of the systems, the performance of the biofilter system achieved a higher efficiency than that of the activated sludge system. Compared with the existing physicochemical-sequencing batch reactor system, the most efficient configurations of the HRF/activated sludge system and the HRF/biofilter system with a shorter HRT achieved both higher pollutant removal efficiency and lower sludge production.
AB - This study was conducted to evaluate the performance of High-Rate Filter (HRF) as an alternative process to Conventional Primary Sedimentation (CPS) processes and the performance of different configurations of activated sludge and biofilter systems with anaerobic/aerobic zones for efficient textile wastewater treatment. The performance efficiency of the HRF with much shorter hydraulic retention time (HRT: 0. 3 h) was very similar to that of the CPS process with a longer HRT of 3. 0 h. The highest efficiencies of the systems were achieved by configuring anoxic:anaerobic:oxic:oxic zones for an activated sludge system and anaerobic:oxic: anoxic zones for a biofilter system, respectively. In particular, under the most efficient configurations of the systems, the performance of the biofilter system achieved a higher efficiency than that of the activated sludge system. Compared with the existing physicochemical-sequencing batch reactor system, the most efficient configurations of the HRF/activated sludge system and the HRF/biofilter system with a shorter HRT achieved both higher pollutant removal efficiency and lower sludge production.
KW - activated sludge
KW - anaerobic/aerobic zones
KW - biofilters
KW - high-rate filter
KW - real textile wastewater
UR - http://www.scopus.com/inward/record.url?scp=84857714345&partnerID=8YFLogxK
U2 - 10.1007/s12205-012-1479-7
DO - 10.1007/s12205-012-1479-7
M3 - Article
AN - SCOPUS:84857714345
SN - 1226-7988
VL - 16
SP - 308
EP - 315
JO - KSCE Journal of Civil Engineering
JF - KSCE Journal of Civil Engineering
IS - 3
ER -