TY - JOUR
T1 - Behavior and characterization of residual organic compounds in wastewater used for indirect potable reuse
AU - Drewes, Jörg E.
AU - Fox, Peter
N1 - Funding Information:
We gratefully acknowledge the technical and financial support received from the cities AZ, Tucson AZ, and Riverside CA. Principal funding was also provided by the American Water Works Association Research Foundation (AARF).WW Additional financial assistance was received through a post doc scholarship administed by the Deutsche Forschungsgemeinschaft (DFG).
PY - 1999
Y1 - 1999
N2 - The scope of this study was to compare the behavior and character of dissolved organic carbon (DOC) during soil-aquifer treatment at different field sites in Arizona and California. To determine biodegradable and residual organic carbon, biodegradability studies using batch tests and a laboratory soil-column system were examined, combined with additional examinations for further characterization (ultrafiltration, adsorption analysis). Based on this comparison, soil-columns in series seemed to be more appropriate to simulate SAT as compared to batch-tests since this test system indicated continuous structural changes of generally poorly degradable organic compounds during SAT. This ongoing change of organic matter was confirmed by field measurements indicating biodegradation as the dominant removal process for DOC during SAT. The level of residual DOC after short-term SAT was similar although wastewater treatment processes differed at the investigated sites. However, increasing source water DOC led to an increase of residual DOC. In general, source water quality, drinking water and wastewater treatment should be viewed as one system in indirect potable reuse projects.
AB - The scope of this study was to compare the behavior and character of dissolved organic carbon (DOC) during soil-aquifer treatment at different field sites in Arizona and California. To determine biodegradable and residual organic carbon, biodegradability studies using batch tests and a laboratory soil-column system were examined, combined with additional examinations for further characterization (ultrafiltration, adsorption analysis). Based on this comparison, soil-columns in series seemed to be more appropriate to simulate SAT as compared to batch-tests since this test system indicated continuous structural changes of generally poorly degradable organic compounds during SAT. This ongoing change of organic matter was confirmed by field measurements indicating biodegradation as the dominant removal process for DOC during SAT. The level of residual DOC after short-term SAT was similar although wastewater treatment processes differed at the investigated sites. However, increasing source water DOC led to an increase of residual DOC. In general, source water quality, drinking water and wastewater treatment should be viewed as one system in indirect potable reuse projects.
KW - Groundwater recharge
KW - Indirect potable reuse
KW - Natural organic matter (NOM)
KW - Refractory DOC
KW - Soil-aquifer treatment (SAT)
KW - Soluble microbial products (SMP)
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U2 - 10.1016/S0273-1223(99)00522-3
DO - 10.1016/S0273-1223(99)00522-3
M3 - Conference article
AN - SCOPUS:0032864049
SN - 0273-1223
VL - 40
SP - 391
EP - 398
JO - Water Science and Technology
JF - Water Science and Technology
IS - 4-5
T2 - Proceedings of the 1998 6th International Conference on Advanced Wastewater Treatment, Recycling and Reuse
Y2 - 14 September 1998 through 16 September 1998
ER -