Feasibility of Tertiary Treatment for Treating High-Strength Tannery Wastewater to Meet Taiwan's COD Discharge Limit of 100 mg/L
三级处理高浓度制革废水达到台湾COD排放限值100 mg/L的可行性
Strict discharge limits established to protect Taiwan's surface waters have led Prime Asia
Taiwan (PAT), a leather finishing facility located in Chang Hua Hsien, Taiwan, to study the
use of tertiary treatment technologies at its wastewater treatment plant (WWTP). The current
Chemical Oxygen Demand (COD) discharge limit of 100 mg/L for tannery wastes has been
unattainable through PAT's conventional biological treatment system. Two advanced
technologies were chosen for pilot testing to determine their effectiveness in meeting the 100
mg/L COD discharge limit that include: a biological activated carbon (BAC) process; and, a
membrane bioreactor (MBR) process. Two pilot tests were independently undertaken to verify
whether the COD discharge goal could be met with the BAC or the MBR processes and to
determine the design parameters for full-scale systems. Includes tables, figures.