Assessing the effectiveness of filtration + UV-C radiation for the treatment of simulated ballast water at various holding times
In recent years, the issue of invasive alien species brought on by ballast water has drawn increasing attention, and advances in ballast water treatment technologies have been made. One of the most popular combined ballast water treatment technologies utilized in ballast water management systems (BW...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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IWA Publishing
2023-05-01
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| Series: | Water Science and Technology |
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| Online Access: | http://wst.iwaponline.com/content/87/10/2564 |
| _version_ | 1797809034574692352 |
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| author | Yanan Wang Qiong Wang Kairui Dong Jianwu Chen Huixian Wu |
| author_facet | Yanan Wang Qiong Wang Kairui Dong Jianwu Chen Huixian Wu |
| author_sort | Yanan Wang |
| collection | DOAJ |
| description | In recent years, the issue of invasive alien species brought on by ballast water has drawn increasing attention, and advances in ballast water treatment technologies have been made. One of the most popular combined ballast water treatment technologies utilized in ballast water management systems (BWMSs) globally is filtration + UV-C radiation. During the actual voyage of the ship, ballast water is treated by the BWMS and then enters the dark ballast tanks until the ballast water is discharged. Marine organisms are able to complete DNA damage caused by UV radiation in dark ballast tanks. Therefore, the length of holding time affects the effectiveness of the BWMS in treating ballast water. The objective of this study was to examine the efficacy of filtration + UV-C irradiation treatment at different holding times for the removal or inactivation of phytoplankton and zooplankton populations during simulated ballast water treatment. Results indicate that the holding time after the filtration + UV-C radiation treatment increased the inactivating efficacy, especially for zooplankton in natural seawater. For phytoplanktons in ballast water, the strongest impact on the treatment efficacy was reached with a holding time of 24 h.
HIGHLIGHTS
This experiment uses natural seawater for large-scale simulation experiments.;
This experiment investigated the effect of holding times on the filtration + UV-C radiation over a wide range (within 0–120 h).;
This experiment has a comparative significance on the effect of the problem of DNA repair and regeneration of phytoplanktons on the treatment effect of filtration + UV-C radiation treatment.; |
| first_indexed | 2024-03-13T06:46:31Z |
| format | Article |
| id | doaj.art-96ede70b8c944ca292a4a23f5d020264 |
| institution | Directory Open Access Journal |
| issn | 0273-1223 1996-9732 |
| language | English |
| last_indexed | 2024-03-13T06:46:31Z |
| publishDate | 2023-05-01 |
| publisher | IWA Publishing |
| record_format | Article |
| series | Water Science and Technology |
| spelling | doaj.art-96ede70b8c944ca292a4a23f5d0202642023-06-08T06:02:11ZengIWA PublishingWater Science and Technology0273-12231996-97322023-05-0187102564257610.2166/wst.2023.146146Assessing the effectiveness of filtration + UV-C radiation for the treatment of simulated ballast water at various holding timesYanan Wang0Qiong Wang1Kairui Dong2Jianwu Chen3Huixian Wu4 College of Marine Ecology and Environment, Shanghai Ocean University, Shanghai 201306, China College of Marine Ecology and Environment, Shanghai Ocean University, Shanghai 201306, China College of Marine Ecology and Environment, Shanghai Ocean University, Shanghai 201306, China College of Marine Ecology and Environment, Shanghai Ocean University, Shanghai 201306, China College of Marine Ecology and Environment, Shanghai Ocean University, Shanghai 201306, China In recent years, the issue of invasive alien species brought on by ballast water has drawn increasing attention, and advances in ballast water treatment technologies have been made. One of the most popular combined ballast water treatment technologies utilized in ballast water management systems (BWMSs) globally is filtration + UV-C radiation. During the actual voyage of the ship, ballast water is treated by the BWMS and then enters the dark ballast tanks until the ballast water is discharged. Marine organisms are able to complete DNA damage caused by UV radiation in dark ballast tanks. Therefore, the length of holding time affects the effectiveness of the BWMS in treating ballast water. The objective of this study was to examine the efficacy of filtration + UV-C irradiation treatment at different holding times for the removal or inactivation of phytoplankton and zooplankton populations during simulated ballast water treatment. Results indicate that the holding time after the filtration + UV-C radiation treatment increased the inactivating efficacy, especially for zooplankton in natural seawater. For phytoplanktons in ballast water, the strongest impact on the treatment efficacy was reached with a holding time of 24 h. HIGHLIGHTS This experiment uses natural seawater for large-scale simulation experiments.; This experiment investigated the effect of holding times on the filtration + UV-C radiation over a wide range (within 0–120 h).; This experiment has a comparative significance on the effect of the problem of DNA repair and regeneration of phytoplanktons on the treatment effect of filtration + UV-C radiation treatment.;http://wst.iwaponline.com/content/87/10/2564ballast waterfiltration + uv-c radiationholding timephytoplanktonzooplankton |
| spellingShingle | Yanan Wang Qiong Wang Kairui Dong Jianwu Chen Huixian Wu Assessing the effectiveness of filtration + UV-C radiation for the treatment of simulated ballast water at various holding times Water Science and Technology ballast water filtration + uv-c radiation holding time phytoplankton zooplankton |
| title | Assessing the effectiveness of filtration + UV-C radiation for the treatment of simulated ballast water at various holding times |
| title_full | Assessing the effectiveness of filtration + UV-C radiation for the treatment of simulated ballast water at various holding times |
| title_fullStr | Assessing the effectiveness of filtration + UV-C radiation for the treatment of simulated ballast water at various holding times |
| title_full_unstemmed | Assessing the effectiveness of filtration + UV-C radiation for the treatment of simulated ballast water at various holding times |
| title_short | Assessing the effectiveness of filtration + UV-C radiation for the treatment of simulated ballast water at various holding times |
| title_sort | assessing the effectiveness of filtration uv c radiation for the treatment of simulated ballast water at various holding times |
| topic | ballast water filtration + uv-c radiation holding time phytoplankton zooplankton |
| url | http://wst.iwaponline.com/content/87/10/2564 |
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