The Application of Seabed Silt in the Preparation of Artificial Algal Reefs
Large amounts of silt have been deposited on the seabed in China’s coastal areas due to intensive coastal development and marine raft aquaculture, which are the main causes of local marine environmental disasters. In this study, seabed silt was tested as a potential raw material for artificial reefs...
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MDPI AG
2020-10-01
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| Series: | Applied Sciences |
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| Online Access: | https://www.mdpi.com/2076-3417/10/20/7279 |
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| author | Zhaoyang Jiang Jiating Zhang Zhaoyi Nie Zhansheng Guo Lixin Zhu Wei Cong Yuan Chen Zhenlin Liang |
| author_facet | Zhaoyang Jiang Jiating Zhang Zhaoyi Nie Zhansheng Guo Lixin Zhu Wei Cong Yuan Chen Zhenlin Liang |
| author_sort | Zhaoyang Jiang |
| collection | DOAJ |
| description | Large amounts of silt have been deposited on the seabed in China’s coastal areas due to intensive coastal development and marine raft aquaculture, which are the main causes of local marine environmental disasters. In this study, seabed silt was tested as a potential raw material for artificial reefs. The silt was mixed with cement in four proportions to create concrete specimens for use in silt artificial reefs (SARs). The compressive strength development and nutrient dissolution were examined in the SAR specimens. The hydration products of the SAR paste were investigated through X-ray diffraction (XRD), scanning election microscope (SEM), and differential scanning calorimetry (DSC) techniques. The results showed that the compression strength of the SAR specimens was inversely proportional to their seabed silt content. The SAR specimens were able to continuously dissolve nitrogen-containing nutrients. The presence of Ca(OH)<sub>2</sub>, commonly found in traditional concrete, was not detected, which may help improve the seaweed adhesion and biological effects of artificial reefs. The effective utilization of seabed silt could serve to restore and improve the marine ecological environment. |
| first_indexed | 2024-03-10T15:32:59Z |
| format | Article |
| id | doaj.art-ea9279ee6f464553880a23cf940aa349 |
| institution | Directory Open Access Journal |
| issn | 2076-3417 |
| language | English |
| last_indexed | 2024-03-10T15:32:59Z |
| publishDate | 2020-10-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Applied Sciences |
| spelling | doaj.art-ea9279ee6f464553880a23cf940aa3492023-11-20T17:31:42ZengMDPI AGApplied Sciences2076-34172020-10-011020727910.3390/app10207279The Application of Seabed Silt in the Preparation of Artificial Algal ReefsZhaoyang Jiang0Jiating Zhang1Zhaoyi Nie2Zhansheng Guo3Lixin Zhu4Wei Cong5Yuan Chen6Zhenlin Liang7Marine College, Shandong University, Weihai 264209, ChinaMarine College, Shandong University, Weihai 264209, ChinaMarine College, Shandong University, Weihai 264209, ChinaMarine College, Shandong University, Weihai 264209, ChinaMarine College, Shandong University, Weihai 264209, ChinaMarine College, Shandong University, Weihai 264209, ChinaMarine College, Shandong University, Weihai 264209, ChinaMarine College, Shandong University, Weihai 264209, ChinaLarge amounts of silt have been deposited on the seabed in China’s coastal areas due to intensive coastal development and marine raft aquaculture, which are the main causes of local marine environmental disasters. In this study, seabed silt was tested as a potential raw material for artificial reefs. The silt was mixed with cement in four proportions to create concrete specimens for use in silt artificial reefs (SARs). The compressive strength development and nutrient dissolution were examined in the SAR specimens. The hydration products of the SAR paste were investigated through X-ray diffraction (XRD), scanning election microscope (SEM), and differential scanning calorimetry (DSC) techniques. The results showed that the compression strength of the SAR specimens was inversely proportional to their seabed silt content. The SAR specimens were able to continuously dissolve nitrogen-containing nutrients. The presence of Ca(OH)<sub>2</sub>, commonly found in traditional concrete, was not detected, which may help improve the seaweed adhesion and biological effects of artificial reefs. The effective utilization of seabed silt could serve to restore and improve the marine ecological environment.https://www.mdpi.com/2076-3417/10/20/7279artificial algal reefseabed siltcompressive strengthdissolution of nutrientshydration productsenvironmental restoration |
| spellingShingle | Zhaoyang Jiang Jiating Zhang Zhaoyi Nie Zhansheng Guo Lixin Zhu Wei Cong Yuan Chen Zhenlin Liang The Application of Seabed Silt in the Preparation of Artificial Algal Reefs Applied Sciences artificial algal reef seabed silt compressive strength dissolution of nutrients hydration products environmental restoration |
| title | The Application of Seabed Silt in the Preparation of Artificial Algal Reefs |
| title_full | The Application of Seabed Silt in the Preparation of Artificial Algal Reefs |
| title_fullStr | The Application of Seabed Silt in the Preparation of Artificial Algal Reefs |
| title_full_unstemmed | The Application of Seabed Silt in the Preparation of Artificial Algal Reefs |
| title_short | The Application of Seabed Silt in the Preparation of Artificial Algal Reefs |
| title_sort | application of seabed silt in the preparation of artificial algal reefs |
| topic | artificial algal reef seabed silt compressive strength dissolution of nutrients hydration products environmental restoration |
| url | https://www.mdpi.com/2076-3417/10/20/7279 |
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