Influence of Oyster Shell Pyrolysis Temperature on Sediment Permeability and Remediation
Permeability is an important aspect of sediment remediation. It is well-known that oyster shells can be used for sediment remediation, however the influence of pyrolysis temperature on sediment permeability remains unknown. In this study, we examined sediment permeability and remediation using crush...
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| Format: | Article |
| Language: | English |
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MDPI AG
2023-04-01
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| Series: | Journal of Marine Science and Engineering |
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| Online Access: | https://www.mdpi.com/2077-1312/11/5/934 |
| _version_ | 1797599573074509824 |
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| author | Maheshkumar Prakash Patil Hee-Eun Woo Seokjin Yoon Kyunghoi Kim |
| author_facet | Maheshkumar Prakash Patil Hee-Eun Woo Seokjin Yoon Kyunghoi Kim |
| author_sort | Maheshkumar Prakash Patil |
| collection | DOAJ |
| description | Permeability is an important aspect of sediment remediation. It is well-known that oyster shells can be used for sediment remediation, however the influence of pyrolysis temperature on sediment permeability remains unknown. In this study, we examined sediment permeability and remediation using crushed oyster shells of less than 5 mm in size that were pyrolyzed at 350 °C (POS350) and 600 °C (POS600) for six hours. Based on the results of the variable head permeability test, POS600 has greater sediment permeability than POS350. In addition, POS600 has greater than POS350 to reduce dissolved inorganic nitrogen (DIN; NH<sub>3</sub>-N, NO<sub>2</sub>-N, and NO<sub>3</sub>-N) and phosphate (PO<sub>4</sub>-P) from organically enriched sediment because of its higher Ca<sup>2+</sup> elution. In conclusion, pyrolysis of oyster shells at 600 °C is more effective than pyrolysis at 350 °C. This finding is true because the transformation of CaCO<sub>3</sub> to CaO, which is the source of Ca<sup>2+</sup>, stimulates pore water flow. Based on these findings, it can be concluded that pyrolyzed oyster shells are beneficial for increasing sediment permeability, thereby helping in the remediation of sediments. |
| first_indexed | 2024-03-11T03:36:13Z |
| format | Article |
| id | doaj.art-246b542ea38247eb8ad7f0b2f0289578 |
| institution | Directory Open Access Journal |
| issn | 2077-1312 |
| language | English |
| last_indexed | 2024-03-11T03:36:13Z |
| publishDate | 2023-04-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Journal of Marine Science and Engineering |
| spelling | doaj.art-246b542ea38247eb8ad7f0b2f02895782023-11-18T01:58:43ZengMDPI AGJournal of Marine Science and Engineering2077-13122023-04-0111593410.3390/jmse11050934Influence of Oyster Shell Pyrolysis Temperature on Sediment Permeability and RemediationMaheshkumar Prakash Patil0Hee-Eun Woo1Seokjin Yoon2Kyunghoi Kim3Industry-University Cooperation Foundation, Pukyong National University, 45 Yongso-ro, Nam-Gu, Busan 48513, Republic of KoreaDepartment of Ocean Engineering, Pukyong National University, 45 Yongso-ro, Nam-Gu, Busan 48513, Republic of KoreaDokdo Fisheries Research Center, National Fisheries Research & Development Institute, Pohang 37709, Republic of KoreaDepartment of Ocean Engineering, Pukyong National University, 45 Yongso-ro, Nam-Gu, Busan 48513, Republic of KoreaPermeability is an important aspect of sediment remediation. It is well-known that oyster shells can be used for sediment remediation, however the influence of pyrolysis temperature on sediment permeability remains unknown. In this study, we examined sediment permeability and remediation using crushed oyster shells of less than 5 mm in size that were pyrolyzed at 350 °C (POS350) and 600 °C (POS600) for six hours. Based on the results of the variable head permeability test, POS600 has greater sediment permeability than POS350. In addition, POS600 has greater than POS350 to reduce dissolved inorganic nitrogen (DIN; NH<sub>3</sub>-N, NO<sub>2</sub>-N, and NO<sub>3</sub>-N) and phosphate (PO<sub>4</sub>-P) from organically enriched sediment because of its higher Ca<sup>2+</sup> elution. In conclusion, pyrolysis of oyster shells at 600 °C is more effective than pyrolysis at 350 °C. This finding is true because the transformation of CaCO<sub>3</sub> to CaO, which is the source of Ca<sup>2+</sup>, stimulates pore water flow. Based on these findings, it can be concluded that pyrolyzed oyster shells are beneficial for increasing sediment permeability, thereby helping in the remediation of sediments.https://www.mdpi.com/2077-1312/11/5/934marine sedimentpermeabilityoyster shellpyrolysisphosphatenitrogen |
| spellingShingle | Maheshkumar Prakash Patil Hee-Eun Woo Seokjin Yoon Kyunghoi Kim Influence of Oyster Shell Pyrolysis Temperature on Sediment Permeability and Remediation Journal of Marine Science and Engineering marine sediment permeability oyster shell pyrolysis phosphate nitrogen |
| title | Influence of Oyster Shell Pyrolysis Temperature on Sediment Permeability and Remediation |
| title_full | Influence of Oyster Shell Pyrolysis Temperature on Sediment Permeability and Remediation |
| title_fullStr | Influence of Oyster Shell Pyrolysis Temperature on Sediment Permeability and Remediation |
| title_full_unstemmed | Influence of Oyster Shell Pyrolysis Temperature on Sediment Permeability and Remediation |
| title_short | Influence of Oyster Shell Pyrolysis Temperature on Sediment Permeability and Remediation |
| title_sort | influence of oyster shell pyrolysis temperature on sediment permeability and remediation |
| topic | marine sediment permeability oyster shell pyrolysis phosphate nitrogen |
| url | https://www.mdpi.com/2077-1312/11/5/934 |
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