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- Publisher Website: 10.1016/j.envpol.2020.115573
- Scopus: eid_2-s2.0-85090875686
- PMID: 33254664
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Article: Effect of submerged combustion evaporation on Cd complexation potential of organic matter in municipal solid waste landfill leachate
Title | Effect of submerged combustion evaporation on Cd complexation potential of organic matter in municipal solid waste landfill leachate |
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Authors | |
Keywords | Complexation Humic substances Leachate treatment Non-Ideal Competitive Adsorption (NICA) model Submerged Combustion Evaporation (SCE) |
Issue Date | 2020 |
Citation | Environmental Pollution, 2020, v. 267, article no. 115573 How to Cite? |
Abstract | Despite the strong ability for complexation of heavy metals, a high amount of humic substances (HS) is always contained in membrane retentate from municipal solid waste landfill leachates treatment processes. Submerged Combustion Evaporation (SCE) can be used to effectively concentrate the membrane retentate. However, the impact of the SCE treatment on HS complexation capacity is still unclear. Since cadmium (Cd) plays a vital role in the pollution of soil and food, this study investigated the influence of the SCE treatment on the Cd complexation potential of leachate HS. Specific effects and complexation properties on Cd complexation of leachate HS before and after the SCE treatment were demonstrated using the Non-Ideal Competitive Adsorption model. The results showed that the Cd complexation capacity of carboxyl sites increased from 3.76 to 4.65 mol/kg-Total Organic Carbon (TOC) after the SCE treatment, which agreed with the stoichiometric number of proton binding sites. Moreover, characterization results indicated that SCE increased the affinity of HS for Cd by enhancing the overall aromaticity of HS (E2:E4 from 9.8 to 9.3), dominantly due to the humic acid contribution. By modeling the practical Cd remediation scenarios, the enhanced Cd complexation performance of HS after SCE treatment was observed even at low pH values (pH = 5) or insufficient TOC content (TOC = 50 mg/L). |
Persistent Identifier | http://hdl.handle.net/10722/344501 |
ISSN | 2023 Impact Factor: 7.6 2023 SCImago Journal Rankings: 2.132 |
DC Field | Value | Language |
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dc.contributor.author | Zhang, Lingyue | - |
dc.contributor.author | Wang, Xinyue | - |
dc.contributor.author | Yue, Dongbei | - |
dc.date.accessioned | 2024-07-31T03:03:56Z | - |
dc.date.available | 2024-07-31T03:03:56Z | - |
dc.date.issued | 2020 | - |
dc.identifier.citation | Environmental Pollution, 2020, v. 267, article no. 115573 | - |
dc.identifier.issn | 0269-7491 | - |
dc.identifier.uri | http://hdl.handle.net/10722/344501 | - |
dc.description.abstract | Despite the strong ability for complexation of heavy metals, a high amount of humic substances (HS) is always contained in membrane retentate from municipal solid waste landfill leachates treatment processes. Submerged Combustion Evaporation (SCE) can be used to effectively concentrate the membrane retentate. However, the impact of the SCE treatment on HS complexation capacity is still unclear. Since cadmium (Cd) plays a vital role in the pollution of soil and food, this study investigated the influence of the SCE treatment on the Cd complexation potential of leachate HS. Specific effects and complexation properties on Cd complexation of leachate HS before and after the SCE treatment were demonstrated using the Non-Ideal Competitive Adsorption model. The results showed that the Cd complexation capacity of carboxyl sites increased from 3.76 to 4.65 mol/kg-Total Organic Carbon (TOC) after the SCE treatment, which agreed with the stoichiometric number of proton binding sites. Moreover, characterization results indicated that SCE increased the affinity of HS for Cd by enhancing the overall aromaticity of HS (E2:E4 from 9.8 to 9.3), dominantly due to the humic acid contribution. By modeling the practical Cd remediation scenarios, the enhanced Cd complexation performance of HS after SCE treatment was observed even at low pH values (pH = 5) or insufficient TOC content (TOC = 50 mg/L). | - |
dc.language | eng | - |
dc.relation.ispartof | Environmental Pollution | - |
dc.subject | Complexation | - |
dc.subject | Humic substances | - |
dc.subject | Leachate treatment | - |
dc.subject | Non-Ideal Competitive Adsorption (NICA) model | - |
dc.subject | Submerged Combustion Evaporation (SCE) | - |
dc.title | Effect of submerged combustion evaporation on Cd complexation potential of organic matter in municipal solid waste landfill leachate | - |
dc.type | Article | - |
dc.description.nature | link_to_subscribed_fulltext | - |
dc.identifier.doi | 10.1016/j.envpol.2020.115573 | - |
dc.identifier.pmid | 33254664 | - |
dc.identifier.scopus | eid_2-s2.0-85090875686 | - |
dc.identifier.volume | 267 | - |
dc.identifier.spage | article no. 115573 | - |
dc.identifier.epage | article no. 115573 | - |
dc.identifier.eissn | 1873-6424 | - |