Abstract
In this study, an in-situ continuous measuring sonicator pre-treatment coupled autosampler HS-SPME GC/FID system is used to analyze 9 VOCs -MTBE, DMS, Acetone, THF, EA, 2-Butanol, IPA, BA and PGMEA in industrial wastewater. Perior calibration of the system exhibited good linearity with RSD less than 15%, recovery of 90% ~ 110%, precision 6.5% ~ 11.5%, and MDL in the range 3.19ppb ~ 7.57ppb. On site real sample continuous analysis from a treatment plant in two different sampling campaigns (25-28 May and 15-17 June 2004) showed that acetone and DMS were dominant pollutants in the first measuring campaign while acetone, DMS, IPA, THF, BA and 2-Butanol were major pollutants in second campaign. The estimated VOCs in the effluent were acetone-19kg/day and DMS-4.3kg/day in the first measuring campaign while DMS-3.1kg/day, acetone-17.6kg/day, THF-230g/day, 2-Butanol-320g/day, IPA-1kg/day and BA-330g/day were estimated in second campaign.