TY - GEN
T1 - Advanced treatment of wastewater from an ethylene chemical enterprise by a biological aerated filter-ultrafiltration-reverse osmosis process
AU - Li, Li Hua
AU - Dai, Xiu Lan
AU - Ma, Fang
PY - 2013
Y1 - 2013
N2 - This work focused on the advanced treatment of the secondary treated ethylene chemical plant effluent, which contained high conductivity and high organic concentration. To reduce the cost and improve operation stability, a biological aerated filter-ultrafiltration-reverse osmosis (BAF-UF-RO) process was proposed. The feasibility and effectiveness of the BAF loaded with a novel non-sintered fly-ash ceramsite (NSFC) as pretreatment method were investigated in detail. The results showed that the COD, turbidity, NH3-N and SDI15 in the effluent from the BAF were reduced largely. The BAF-UF-RO process was stable with the recovery rate of 75%, and the desalination rate was up to about 97.5%. Moreover, the operating pressure and backwash frequency of RO maintained 0.94-0.98 MPa and 2 times/d, respectively. After continuous operation for four months, there appeared to be no need for chemical cleaning of the RO membrane.
AB - This work focused on the advanced treatment of the secondary treated ethylene chemical plant effluent, which contained high conductivity and high organic concentration. To reduce the cost and improve operation stability, a biological aerated filter-ultrafiltration-reverse osmosis (BAF-UF-RO) process was proposed. The feasibility and effectiveness of the BAF loaded with a novel non-sintered fly-ash ceramsite (NSFC) as pretreatment method were investigated in detail. The results showed that the COD, turbidity, NH3-N and SDI15 in the effluent from the BAF were reduced largely. The BAF-UF-RO process was stable with the recovery rate of 75%, and the desalination rate was up to about 97.5%. Moreover, the operating pressure and backwash frequency of RO maintained 0.94-0.98 MPa and 2 times/d, respectively. After continuous operation for four months, there appeared to be no need for chemical cleaning of the RO membrane.
KW - Biological aerated filter
KW - Desalination rate
KW - Non-sintered fly-ash ceramsite
KW - Reverse osmosis
UR - https://www.scopus.com/pages/publications/84884917694
U2 - 10.4028/www.scientific.net/AMR.726-731.1673
DO - 10.4028/www.scientific.net/AMR.726-731.1673
M3 - 会议稿件
AN - SCOPUS:84884917694
SN - 9783037857427
T3 - Advanced Materials Research
SP - 1673
EP - 1678
BT - Advances in Environmental Technologies
T2 - 2013 2nd International Conference on Energy and Environmental Protection, ICEEP 2013
Y2 - 19 April 2013 through 21 April 2013
ER -