TY - JOUR
T1 - Ethylenediamine-N,N'-diglutaric acid (EDDG) as a promising biodegradable chelator: quantification, complexation and biodegradation
AU - Lanham, Ana B.
AU - Carvalheira, Mónica
AU - Rodrigues, Alexandre Mourão
AU - Cardoso, Vitor Vale
AU - Benoliel, Maria João
AU - Maria, Teresa Barros
AU - Morgado, Maria João
AU - Soares, Helena M.V.M.
AU - Lemos, Paulo Costa
AU - Reis, Maria A. M.
N1 - Financial support by FCT (Projects POCI/QUI/57891/2004 and PPCDT/QUI/57891/2004) with FEDER funds are gratefully acknowledged.
PY - 2011/1/1
Y1 - 2011/1/1
N2 - [S,S]-ethylenediamine-N,N'-diglutaric acid (EDDG) has been gaining interest in the industrial sector as a promising chelator. In this study, the effective metal complexing capacity of EDDG over a wide pH range was modelled and its biodegradability assessed. Results showed that EDDG could effectively bind to several metallic ions in a wide pH range and was completely biodegraded after approximately 15 days by un-acclimatized sludge. To confirm its biodegradability, an accurate quantification method based on the combination of liquid chromatography and tandem quadrupole mass spectrometry (LC-MS/MS) was developed. Good linearity of the detector response was found for EDDG at concentrations ranging from 0,15 to 1,2 mg/L.
AB - [S,S]-ethylenediamine-N,N'-diglutaric acid (EDDG) has been gaining interest in the industrial sector as a promising chelator. In this study, the effective metal complexing capacity of EDDG over a wide pH range was modelled and its biodegradability assessed. Results showed that EDDG could effectively bind to several metallic ions in a wide pH range and was completely biodegraded after approximately 15 days by un-acclimatized sludge. To confirm its biodegradability, an accurate quantification method based on the combination of liquid chromatography and tandem quadrupole mass spectrometry (LC-MS/MS) was developed. Good linearity of the detector response was found for EDDG at concentrations ranging from 0,15 to 1,2 mg/L.
KW - Biodegradable
KW - Chemical analysis
KW - Environmental chemistry
KW - Waste water
UR - http://www.scopus.com/inward/record.url?scp=79955991110&partnerID=8YFLogxK
U2 - 10.1080/10934529.2011.562805
DO - 10.1080/10934529.2011.562805
M3 - Article
C2 - 21500069
AN - SCOPUS:79955991110
SN - 1093-4529
VL - 46
SP - 553
EP - 559
JO - Journal of Environmental Science and Health - Part A Toxic/Hazardous Substances and Environmental Engineering
JF - Journal of Environmental Science and Health - Part A Toxic/Hazardous Substances and Environmental Engineering
IS - 6
ER -