Archives

  • Archives
  • >
  • Home

DOI : 10.17640/KSWST.2015.23.6.53 ,    Vol.23, No.6, 53 ~ 64, 2015
Title
Analysis of the Residual Trace Pharmaceutical Substances in the MAP Struvite Produced from Human Urine
장현희 Hyun Hee Jang , 서영민 Youngmin Seo , 전준호 Junho Jeon , 서규태 Gyutae Seo
Abstract
This study is intended on production of MAP struvite from human urine and analysis of residual pharmaceuticals in the produced struvite. Experiments were conducted using hydrolyzed human urine and RO concentrate as magnesium source for MAP precipitation. An integrated single reactor was operated for MAP struvite precipitation at pH 9 although the optimum reaction pH was 10. There was not significant difference in the MAP production between pH 9 (2.08g MAP/L urine) and 10 (2.19g MAP/L urine). Pretreatment of the samples using Solid-Phase Extraction (SPE) was carried out for the pharmaceutical analysis in the MAP struvite and supernatant followed by LC/MS/MS for quantitative analysis. The result of analysis illustrated that 0.06 ㎍/g MAP to 6.22 ㎍/g MAP of pharmaceuticals are adsorbed on precipitated MAP struvite which may create a number of negative effects to environment if directly applied in agricultural purposes. The result of this study suggests that, to increase the applicability of MAP struvite precipitated using human urine, pretreatment of urine for pharmaceutical pollutants removal is needed.
Key Words
MAP Struvite, Human urine, Pharmaceutical, Solid-Phase Extraction, SPE
pdf view PDF