Sewage Sludge Derived Materials for CO<sub>2</sub> Adsorption
The study tried to contribute to solving two serious environmental issues: CO<sub>2</sub> reducing and sewage sludge disposal. Thus, sewage-sludge-derived materials were obtained in order to be evaluated for CO<sub>2</sub> adsorption capacity. Therefore, the char resulted aft...
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| Format: | Article |
| Language: | English |
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MDPI AG
2021-08-01
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| Series: | Applied Sciences |
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| Online Access: | https://www.mdpi.com/2076-3417/11/15/7139 |
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| author | Marius Gheorghe Miricioiu Anca Zaharioiu Simona Oancea Felicia Bucura Maria Simona Raboaca Constantin Filote Roxana Elena Ionete Violeta Carolina Niculescu Marius Constantinescu |
| author_facet | Marius Gheorghe Miricioiu Anca Zaharioiu Simona Oancea Felicia Bucura Maria Simona Raboaca Constantin Filote Roxana Elena Ionete Violeta Carolina Niculescu Marius Constantinescu |
| author_sort | Marius Gheorghe Miricioiu |
| collection | DOAJ |
| description | The study tried to contribute to solving two serious environmental issues: CO<sub>2</sub> reducing and sewage sludge disposal. Thus, sewage-sludge-derived materials were obtained in order to be evaluated for CO<sub>2</sub> adsorption capacity. Therefore, the char resulted after the sewage sludge pyrolysis was subjected to oxidation and chemical activation processes by using different quantities of alkaline hydroxide. One of the obtained materials, activated with a lower quantity of alkaline hydroxide, was also treated with acid chloride. Further, the materials were structural and texturally characterized, and material treated with acid chloride was used for CO<sub>2</sub> adsorption tests, due to high surface area and pore volume. The handmade system coupled to a gas chromatograph allowed the adsorption efficiency evaluation using different feed gases (rich and poor in CO<sub>2</sub>) by completed purge of pipe line and on-line check. Additionally, the adsorption capacity, separation efficiency, and CO<sub>2</sub> recovery were calculated. Taking into account the values for adsorption capacity (separation efficiency and CO<sub>2</sub> recovery), it can be concluded that the sewage sludge derived material could be a promising solution for CO<sub>2</sub> reduction and waste disposal. |
| first_indexed | 2024-03-10T09:18:05Z |
| format | Article |
| id | doaj.art-a6e9d3e64d2143c2babed768e3f4c780 |
| institution | Directory Open Access Journal |
| issn | 2076-3417 |
| language | English |
| last_indexed | 2024-03-10T09:18:05Z |
| publishDate | 2021-08-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Applied Sciences |
| spelling | doaj.art-a6e9d3e64d2143c2babed768e3f4c7802023-11-22T05:25:09ZengMDPI AGApplied Sciences2076-34172021-08-011115713910.3390/app11157139Sewage Sludge Derived Materials for CO<sub>2</sub> AdsorptionMarius Gheorghe Miricioiu0Anca Zaharioiu1Simona Oancea2Felicia Bucura3Maria Simona Raboaca4Constantin Filote5Roxana Elena Ionete6Violeta Carolina Niculescu7Marius Constantinescu8National Research and Development Institute for Cryogenic and Isotopic Technologies-ICSI Rm. Valcea, 4th Uzinei Str., 240050 Ramnicu Valcea, RomaniaNational Research and Development Institute for Cryogenic and Isotopic Technologies-ICSI Rm. Valcea, 4th Uzinei Str., 240050 Ramnicu Valcea, RomaniaFaculty of Agricultural Sciences, Food Industry and Environmental Protection, Lucian Blaga University of Sibiu, 10 Victoriei Blvd, 550024 Sibiu, RomaniaNational Research and Development Institute for Cryogenic and Isotopic Technologies-ICSI Rm. Valcea, 4th Uzinei Str., 240050 Ramnicu Valcea, RomaniaNational Research and Development Institute for Cryogenic and Isotopic Technologies-ICSI Rm. Valcea, 4th Uzinei Str., 240050 Ramnicu Valcea, RomaniaFaculty of Electrical Engineering and Computer Science, Stefan cel Mare University of Suceava, 720229 Suceava, RomaniaNational Research and Development Institute for Cryogenic and Isotopic Technologies-ICSI Rm. Valcea, 4th Uzinei Str., 240050 Ramnicu Valcea, RomaniaNational Research and Development Institute for Cryogenic and Isotopic Technologies-ICSI Rm. Valcea, 4th Uzinei Str., 240050 Ramnicu Valcea, RomaniaNational Research and Development Institute for Cryogenic and Isotopic Technologies-ICSI Rm. Valcea, 4th Uzinei Str., 240050 Ramnicu Valcea, RomaniaThe study tried to contribute to solving two serious environmental issues: CO<sub>2</sub> reducing and sewage sludge disposal. Thus, sewage-sludge-derived materials were obtained in order to be evaluated for CO<sub>2</sub> adsorption capacity. Therefore, the char resulted after the sewage sludge pyrolysis was subjected to oxidation and chemical activation processes by using different quantities of alkaline hydroxide. One of the obtained materials, activated with a lower quantity of alkaline hydroxide, was also treated with acid chloride. Further, the materials were structural and texturally characterized, and material treated with acid chloride was used for CO<sub>2</sub> adsorption tests, due to high surface area and pore volume. The handmade system coupled to a gas chromatograph allowed the adsorption efficiency evaluation using different feed gases (rich and poor in CO<sub>2</sub>) by completed purge of pipe line and on-line check. Additionally, the adsorption capacity, separation efficiency, and CO<sub>2</sub> recovery were calculated. Taking into account the values for adsorption capacity (separation efficiency and CO<sub>2</sub> recovery), it can be concluded that the sewage sludge derived material could be a promising solution for CO<sub>2</sub> reduction and waste disposal.https://www.mdpi.com/2076-3417/11/15/7139adsorbentscarbon dioxidecharpyrolysissewage sludge |
| spellingShingle | Marius Gheorghe Miricioiu Anca Zaharioiu Simona Oancea Felicia Bucura Maria Simona Raboaca Constantin Filote Roxana Elena Ionete Violeta Carolina Niculescu Marius Constantinescu Sewage Sludge Derived Materials for CO<sub>2</sub> Adsorption Applied Sciences adsorbents carbon dioxide char pyrolysis sewage sludge |
| title | Sewage Sludge Derived Materials for CO<sub>2</sub> Adsorption |
| title_full | Sewage Sludge Derived Materials for CO<sub>2</sub> Adsorption |
| title_fullStr | Sewage Sludge Derived Materials for CO<sub>2</sub> Adsorption |
| title_full_unstemmed | Sewage Sludge Derived Materials for CO<sub>2</sub> Adsorption |
| title_short | Sewage Sludge Derived Materials for CO<sub>2</sub> Adsorption |
| title_sort | sewage sludge derived materials for co sub 2 sub adsorption |
| topic | adsorbents carbon dioxide char pyrolysis sewage sludge |
| url | https://www.mdpi.com/2076-3417/11/15/7139 |
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