Sucralose as an oxidative-attenuation tracer for characterizing the application of in situ chemical oxidation for the treatment of 1,4-dioxane

Yan, Ni1,2; Guo, Zhilin3; Brusseau, Mark L.4

2022-07-01

10.1039/d2em00185c

Environmental Science-Processes & Impacts   Impact Factor & Quartile

2050-7887

2050-7895

In situ chemical oxidation (ISCO) has become a widely used soil and groundwater remediation method. Oxidative-attenuation tracers can be used to provide real-time, explicit delineation of contaminant mass-transfer and transformation behavior during an ISCO remediation project. The objective of this study was to evaluate the potential of employing sucralose, a widely used artificial sweetener, as an oxidative-attenuation tracer to characterize the remediation efficiency of 1,4-dioxane (dioxane) by persulfate-based ISCO. Batch and miscible-displacement experiments were conducted to examine the degradation rate and transport behavior of sucralose compared to that of dioxane. Comparable magnitudes and rates of degradation were observed for sucralose and dioxane in batch-reactor experiments with soil and persulfate. The breakthrough curves of sucralose and dioxane transport in a soil-packed column were coincident. The retardation factors were 1.1 for both compounds, indicating limited sorption for both sucralose and dioxane by the soil. Limited degradation was observed in the miscible-displacement experiments, consistent with the short residence time compared to the half-lives of sucralose and dioxane. Persulfate transport and decomposition behavior in the soil-packed columns was similar in the presence of sucralose or dioxane. A simulated tracer test was conducted to illustrate the application of sucralose as an oxidative-attenuation tracer at the pilot scale. These results demonstrate the potential of sucralose as an oxidative-attenuation tracer to support the robust design of ISCO applications for dioxane. The oxidative-attenuation tracer test method is anticipated to be an effective approach for characterizing mass-removal behavior of other emerging contaminants with appropriate selection of tracer.

SCI ; EI

English

Others

National Natural Science Foundation of China[41907161] ; China Postdoctoral Science Foundation[2019M662448] ; Natural Science Foundation of Guangdong Province[2020A1515010891] ; NIEHS Superfund Research Program[P42 ES04940]

Chemistry ; Environmental Sciences & Ecology

Chemistry, Analytical ; Environmental Sciences

WOS:000821430100001

ROYAL SOC CHEMISTRY

20223812755982

Batch reactors ; Degradation ; Ethers ; Glucose ; Mass transfer ; Polyols ; Soils ; Sugar substitutes

Groundwater:444.2 ; Soils and Soil Mechanics:483.1 ; Mass Transfer:641.3 ; Chemical Plants and Equipment:802.1 ; Chemical Reactions:802.2 ; Organic Compounds:804.1 ; Food Products:822.3

Web of Science

1.Ocean Univ China, Coll Environm Sci & Engn, Key Lab Marine Environm Sci & Ecol, Minist Educ, Qingdao 266100, Peoples R China
2.Ocean Univ China, Shandong Prov Key Lab Marine Environm & Geol Engn, Qingdao 266100, Peoples R China
3.Southern Univ Sci & Technol, Sch Environm Sci & Engn, State Environm Protect Key Lab Integrated Surface, Shenzhen 518055, Peoples R China
4.Univ Arizona, Environm Sci Dept, Tucson, AZ 85721 USA

Yan, Ni,Guo, Zhilin,Brusseau, Mark L.. Sucralose as an oxidative-attenuation tracer for characterizing the application of in situ chemical oxidation for the treatment of 1,4-dioxane[J]. Environmental Science-Processes & Impacts,2022,24:1165-1172.

Yan, Ni,Guo, Zhilin,&Brusseau, Mark L..(2022).Sucralose as an oxidative-attenuation tracer for characterizing the application of in situ chemical oxidation for the treatment of 1,4-dioxane.Environmental Science-Processes & Impacts,24,1165-1172.

Yan, Ni,et al."Sucralose as an oxidative-attenuation tracer for characterizing the application of in situ chemical oxidation for the treatment of 1,4-dioxane".Environmental Science-Processes & Impacts 24(2022):1165-1172.