Application of a hydroxyl-radical-based disinfection system for ballast water

Bai, Mindong; Tian, Yiping; Yu, Yiyi; Zheng, Qunhao; Zhang, Xiaofang; Zheng, Wei; Zhang, Zhitao

doi:10.1016/j.chemosphere.2018.06.010

Cited by 24 publications

(12 citation statements)

References 37 publications

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“…Nowadays, maritime transportation is developing rapidly and contributes more than 80% of the total international trade. 1 Ship ballast water has the potential to bring marine bio-invasion of alien species and is considered as one of the greatest threats to coastal ecosystems, economy and even public health, which has attracted more and more attention from environmental scientists. 2–6 The International Maritime Organization convention issued in 2004 (IMO 2004) requires efficient ballast water treatment and the discharged ballast water must meet the D-2 standard.…”

Section: Introductionmentioning

confidence: 99%

“…Different treatment methods have been applied in the ballast water management system (BWMS) to prevent bio-invasion such as filtration, 7 electrolysis, 8–10 ultraviolet, 11,12 ozonation 13 and advanced oxidation technology. 1,14,15 Chlorination treatment is one of the most widely used methods, which can inactivate phycophyta and bacteria effectively.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Formation of halogenated disinfection by-products during ballast water chlorination

Zhang

Xue

Wang

et al. 2022

Environ. Sci.: Water Res. Technol.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Formation of halogenated disinfection by-products during ballast water chlorination

Zhang

Xue

Wang

et al. 2022

Environ. Sci.: Water Res. Technol.

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“…Recently, Bai et al [15] developed a novel type of plasma gas injection system (the schematic is shown in Fig. 1) by combining a micro-gap DBD reactor with a water jet cavitation device and the system successfully got a high production rate of •OH radicals (1373.4 mM/min).…”

Section: Introductionmentioning

confidence: 99%

The Applications of Plasma Gas Injection for Pollutants Treatment

Qiu

Yang²,

2022

IEEE Trans. Plasma Sci.

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Plasma gas injection as one of the non-thermal plasma (NTP) technologies has a free-standing gas-phase plasma reactor outside the polluted target and can efficiently degrade contaminants by injecting plasma gas containing a large number of reactive species. This approach has been utilized in various fields of pollutants treatment, because of its structural advantage of indirect contact between pollutants and electrodes and its ability to produce strong oxidizing species. This article first expounds on the principle of the plasma gas injection and then progresses to a discussion of its application for pollutants degradation, mainly focusing on the treatment effect and degradation mechanisms. It is believed that plasma gas injection is considered to be a very practical, clean, efficient, and environmentally friendly method for pollution control.

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“…13 In addition, the •OH treatment is reported to produce minimal DBPs, which pose no potential risk to the marine environment. 14 However, all of the identified methods require external high energy input, which is not sustainable. Meanwhile, the Fenton system is well-established as one of the most powerful technologies for generating •OH using H 2 O 2 as the oxidant in the presence of suitable catalysts.…”

Section: Introductionmentioning

confidence: 99%

“…For instance, a •OH solution produced by ionization discharge shows high efficacy for ballast water sterilization, which has potential for large-scale on-board application . In addition, the •OH treatment is reported to produce minimal DBPs, which pose no potential risk to the marine environment . However, all of the identified methods require external high energy input, which is not sustainable.…”

Section: Introductionmentioning

confidence: 99%

Visible Light-Induced Marine Bacterial Inactivation in Seawater by an In Situ Photo-Fenton System without Additional Oxidants: Implications for Ballast Water Sterilization

Wang

Xie

et al. 2021

ACS EST Water

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Harmful non-indigenous microorganism invasion caused by ballast water discharge poses severe threats to marine environments. In this study, a conceptual in situ photo-Fenton system without additional oxidants was first established for ballast water sterilization. Pyromellitic acid diimine (PDI)-modified g-C3N4 was utilized as a photocatalyst to produce H2O2, which was in situ activated by Fe(II) to produce •OH for deep oxidation. Marine bacterium Vibrio alginolyticus (7 log) in ballast seawater was totally inactivated within 35 min of visible light irradiation. Simultaneous bacterial inactivation and H2O2 production was monitored to confirm the in situ coupling mechanism, and •OH instead of H2O2 was determined to be the dominant reactive species. The influence of seawater parameters, such as salinity, pH, and dissolved oxygen, on the inactivation efficiency was revealed. In addition, the bacterial inactivation mechanisms in terms of cell membrane rupture, intracellular enzyme activity, and total protein change were clarified. The organic matter release profile during bacterial lysis was probed by fluorescence excitation–emission matrix technology, which revealed minimal acute toxicity and impacts on the marine environment. This work not only advances an external oxidant-free system for on-board ballast water sterilization using sustainable solar energy but also creates an avenue for exploring bacterial inactivation mechanisms in seawater.

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Application of a hydroxyl-radical-based disinfection system for ballast water

Cited by 24 publications

References 37 publications

Formation of halogenated disinfection by-products during ballast water chlorination

Formation of halogenated disinfection by-products during ballast water chlorination

The Applications of Plasma Gas Injection for Pollutants Treatment

Visible Light-Induced Marine Bacterial Inactivation in Seawater by an In Situ Photo-Fenton System without Additional Oxidants: Implications for Ballast Water Sterilization

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