WANGJuan,YUZhi-yong,HANSi-qi,et al.Static Headspace Gas Chromatography for Determination of Seven Volatile Halohydrocarbon in Sewage[J].China Water & Wastewater,2023,39(16):140-146.
Static Headspace Gas Chromatography for Determination of Seven Volatile Halohydrocarbon in Sewage
China Water & Wastewater[ISSN:1000-4062/CN:12-1073/TU]
volume:
第39卷
Number:
第16期
Page:
140-146
Column:
Date of publication:
2023-08-17
- Keywords:
- sewage; headspace; gas chromatography; volatile halohydrocarbon
- Abstract:
- A static headspace gas chromatography method was established for the determination of seven volatile halohydrocarbons in sewage. The effects of headspace equilibrium temperature, headspace equilibrium time, salinity and the type of filter membranes on the detection results were investigated. When the headspace equilibrium time was 40 min, the headspace equilibrium temperature was 70 ℃, the dosage of salt was 0% and the filter membrane was polytetrafluoroethylene, the linear correlation coefficients of the seven target pollutants were all not less than 0.999, the spiked recoveries were between 95.2% and 106%, the relative standard deviations were from 0.40% to 3.5%, and the limits of quantification were between 0.048 μg/L and 0.360 μg/L. The method is simple and suitable for the determination of seven volatile halohydrocarbons in sewage. The wastewater samples from each process section of a wastewater treatment plant in Beijing were determined. The concentrations of trichloromethane and bromo dichloromethane in the effluent after chlorination were 0.014 2 mg/L and 0.000 3 mg/L, respectively, which were lower than the limits specified in Discharge Standard of Pollutants for Municipal Wastewater Treatment Plant (GB 18918-2002).
Last Update:
2023-08-17