Title : Application of an Electron Accelerator for the Treatment of Wastewater from Textile Dyeing Industries
Textile dyeing processes consume a great amount of water and steam and
discharge filthy and colored wastewater. Increased use of assorted dyes
and other chemicals has increased the pace of reequipping purification
facilities by applying efficient methods based on radiation technology.
Based on laboratory data, a pilot-scale e-beam plant was constructed at
the Daegu Dyeing Industrial Complex (DDIC) in 1998. An electron
accelerator, 40 kW at 1 MeV, was used for 1,000 m3 per day. Continuous
operation of this plant showed that the preliminary e-beam treatment
reduced the bio-treatment time and resulted in significant decreases in
the TOC (total organic carbon), CODCr (Chemical Oxygen Demand as
dichromate method), and BOD5 (Biochemical Oxygen Demand in 5 days).
Convinced of the economics and efficiency of the process, a commercial
plant with a 400-kW electron accelerator was constructed in 2005. This
plant improved the removal efficiency of
wastewater by decreasing the retention time in a bio-treatment facility
with a dose of approximately 1 kGy. This plant is located in the
vicinity of an existing wastewater treatment facility in the DDIC, and
the treatment capacity is 10,000 m3 of wastewater per day.
Journal of the Korean Physical Society, Vol. 59, No. 6, December 2011, pp. 34893493