TY - JOUR
T1 - Anaerobic-anoxic-oxic biological treatment of high-strength, highly recalcitrant polyphenylene sulfide wastewater
AU - Guo, Hui
AU - Yao, Hai-Yong
AU - Huang, Qi-Qi
AU - Li, Ting
AU - Show, De-Yang
AU - Ling, Ming
AU - Yan, Yue-Gen
AU - Show, Kuan-Yeow
AU - Lee, Duu-Jong
PY - 2023/3
Y1 - 2023/3
N2 - This paper outlines an integrated anaerobic-anoxic-oxic (A2O) treatment scheme for high-strength, highly recalcitrant wastewater from the production of polyphenylene sulfide (PPS) resins and their composite chemicals. An integrated anaerobic granular sludge blanket (GSB) and anoxic-oxic (AO) reactor indicated that the A2O removed chemical oxygen demand (COD) of up to 7,043 mg/L with no adverse impact from high total dissolved solids (25,000 mg/L) on the GSB COD removal and effluent suspended solids. At a Total Kjeldahl Nitrogen (TKN) nitrification load of 0.11 g TKN/L.d and 400 mg NH3/L, almost 99 % of the NH3 was degraded with effluent NH3 < 5 mg/L, meeting the limit of 35 mg/L. High S2- levels of up to 1470 mg/L can be transformed through aerobic microbial degradation to meet a limit of 1.0 mg/L. With proper microbial acclimation and process designs, the integrated A2O scheme offers a resilient and robust treatment for high-strength recalcitrant PPS wastewater.© 2023 Elsevier Ltd. All rights reserved.
AB - This paper outlines an integrated anaerobic-anoxic-oxic (A2O) treatment scheme for high-strength, highly recalcitrant wastewater from the production of polyphenylene sulfide (PPS) resins and their composite chemicals. An integrated anaerobic granular sludge blanket (GSB) and anoxic-oxic (AO) reactor indicated that the A2O removed chemical oxygen demand (COD) of up to 7,043 mg/L with no adverse impact from high total dissolved solids (25,000 mg/L) on the GSB COD removal and effluent suspended solids. At a Total Kjeldahl Nitrogen (TKN) nitrification load of 0.11 g TKN/L.d and 400 mg NH3/L, almost 99 % of the NH3 was degraded with effluent NH3 < 5 mg/L, meeting the limit of 35 mg/L. High S2- levels of up to 1470 mg/L can be transformed through aerobic microbial degradation to meet a limit of 1.0 mg/L. With proper microbial acclimation and process designs, the integrated A2O scheme offers a resilient and robust treatment for high-strength recalcitrant PPS wastewater.© 2023 Elsevier Ltd. All rights reserved.
KW - Integratedanaerobic-anoxic-oxic
KW - Nitrogen removal
KW - Polyphenylene sulfide wastewater
KW - MICROBIAL COMMUNITY
KW - MEMBRANE BIOREACTOR
KW - PERFORMANCE
KW - REACTOR
UR - http://gateway.isiknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=LinksAMR&SrcApp=PARTNER_APP&DestLinkType=FullRecord&DestApp=WOS&KeyUT=000925325400002
U2 - 10.1016/j.biortech.2023.128640
DO - 10.1016/j.biortech.2023.128640
M3 - RGC 21 - Publication in refereed journal
SN - 0960-8524
VL - 371
JO - Bioresource Technology
JF - Bioresource Technology
M1 - 128640
ER -
