Adsorption characteristics and mechanism of Cd by mealworm frass
Abstract This experiment was conducted to evaluate the adsorption–desorption characteristics and mechanisms of heavy metals by the mealworm frass (MF). The adsorption characteristics of Cd by MF were predominantly influenced by initial pH, MF dosage, temperature, and reaction time. The maximum adsor...
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| Format: | Article |
| Language: | English |
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SpringerOpen
2025-01-01
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| Series: | Applied Biological Chemistry |
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| Online Access: | https://doi.org/10.1186/s13765-024-00977-5 |
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| author | Hae-Been Kim Jae-Hoon Lee Ye-Ji Lee Jun-Suk Rho Jeong-Min Lee Seong-Heon Kim Jong-Hwan Park Dong-Cheol Seo |
| author_facet | Hae-Been Kim Jae-Hoon Lee Ye-Ji Lee Jun-Suk Rho Jeong-Min Lee Seong-Heon Kim Jong-Hwan Park Dong-Cheol Seo |
| author_sort | Hae-Been Kim |
| collection | DOAJ |
| description | Abstract This experiment was conducted to evaluate the adsorption–desorption characteristics and mechanisms of heavy metals by the mealworm frass (MF). The adsorption characteristics of Cd by MF were predominantly influenced by initial pH, MF dosage, temperature, and reaction time. The maximum adsorption capacity of Cd by MF was 48.1 mg/g, which was well described by Langmuir isotherm and pseudo-second-order models. The optimal desorption solution for separating Cd from Cd-adsorbed MF was 0.02 M HCl, which showed a high desorption efficiency of over 90%. In particular, the adsorption mechanism of Cd by MF was confirmed through functional group change, cation exchange, precipitation experiment, and it was found that Cd was predominantly affected by cation exchange and precipitation on the MF surface. The amounts of Cd fractionated by F1 (exchangeable) and F2 (bonded to carbonate) solutions were 58.9 and 25.2% of the total fractionated Cd amount, which means that Cd adsorbed by MF can be easily eluted/mobilized by environmental changes. Considering the above results, it is believed that MF can be used as an effective adsorbent to remove Cd. However, since the adsorption of Cd by MF is sensitive to environmental changes and the bond itself is weak, it is considered that a special management plan is needed. |
| format | Article |
| id | doaj-art-1c997482a08d47cfb76f21dc005484aa |
| institution | Kabale University |
| issn | 2468-0842 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | SpringerOpen |
| record_format | Article |
| series | Applied Biological Chemistry |
| spelling | doaj-art-1c997482a08d47cfb76f21dc005484aa2025-01-19T12:36:39ZengSpringerOpenApplied Biological Chemistry2468-08422025-01-0168111110.1186/s13765-024-00977-5Adsorption characteristics and mechanism of Cd by mealworm frassHae-Been Kim0Jae-Hoon Lee1Ye-Ji Lee2Jun-Suk Rho3Jeong-Min Lee4Seong-Heon Kim5Jong-Hwan Park6Dong-Cheol Seo7Department of Life Resources Industry, Dong-A UniversityDivision of Applied Life Science (BK21 Four), Gyeongsang National UniversityDepartment of Life Resources Industry, Dong-A UniversityDivision of Applied Life Science (BK21 Four), Gyeongsang National UniversityDepartment of Life Resources Industry, Dong-A UniversitySoil and Fertilizer Management Division, National Institute of Agricultural Science, Rural Development AdministrationDepartment of Life Resources Industry, Dong-A UniversityDivision of Applied Life Science (BK21 Four) & Institute of Agriculture and Life Science, Gyeongsang National UniversityAbstract This experiment was conducted to evaluate the adsorption–desorption characteristics and mechanisms of heavy metals by the mealworm frass (MF). The adsorption characteristics of Cd by MF were predominantly influenced by initial pH, MF dosage, temperature, and reaction time. The maximum adsorption capacity of Cd by MF was 48.1 mg/g, which was well described by Langmuir isotherm and pseudo-second-order models. The optimal desorption solution for separating Cd from Cd-adsorbed MF was 0.02 M HCl, which showed a high desorption efficiency of over 90%. In particular, the adsorption mechanism of Cd by MF was confirmed through functional group change, cation exchange, precipitation experiment, and it was found that Cd was predominantly affected by cation exchange and precipitation on the MF surface. The amounts of Cd fractionated by F1 (exchangeable) and F2 (bonded to carbonate) solutions were 58.9 and 25.2% of the total fractionated Cd amount, which means that Cd adsorbed by MF can be easily eluted/mobilized by environmental changes. Considering the above results, it is believed that MF can be used as an effective adsorbent to remove Cd. However, since the adsorption of Cd by MF is sensitive to environmental changes and the bond itself is weak, it is considered that a special management plan is needed.https://doi.org/10.1186/s13765-024-00977-5InsectManureHeavy metalFractionationTenebrio molitor |
| spellingShingle | Hae-Been Kim Jae-Hoon Lee Ye-Ji Lee Jun-Suk Rho Jeong-Min Lee Seong-Heon Kim Jong-Hwan Park Dong-Cheol Seo Adsorption characteristics and mechanism of Cd by mealworm frass Applied Biological Chemistry Insect Manure Heavy metal Fractionation Tenebrio molitor |
| title | Adsorption characteristics and mechanism of Cd by mealworm frass |
| title_full | Adsorption characteristics and mechanism of Cd by mealworm frass |
| title_fullStr | Adsorption characteristics and mechanism of Cd by mealworm frass |
| title_full_unstemmed | Adsorption characteristics and mechanism of Cd by mealworm frass |
| title_short | Adsorption characteristics and mechanism of Cd by mealworm frass |
| title_sort | adsorption characteristics and mechanism of cd by mealworm frass |
| topic | Insect Manure Heavy metal Fractionation Tenebrio molitor |
| url | https://doi.org/10.1186/s13765-024-00977-5 |
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