Current and emerging environmentally-friendly systems for fouling control in the marine environment

Gittens, Jeanette; Smith, Thomas J.; Suleiman, Rami; Akid, Robert

doi:10.1016/j.biotechadv.2013.09.002

Cited by 153 publications

(109 citation statements)

References 154 publications

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“…It is also applied in hydrometallurgical extraction and leather tanning processes, for curing of epoxies, in phase transfer catalysis, and for preservation of coatings, pigments and slurries [3,4]. In the oil and gas industry, THPS is primarily utilized as a biocide to control sulfate reducing bacteria due to its enhanced performance, higher thermal stability and low foaming potential [5][6][7][8]. Unlike conventional biocides, which are highly toxic to aquatic organisms and accumulative in the food chain, THPS has a relatively good environmental profile [8,9].…”

Section: Introductionmentioning

confidence: 99%

Laboratory assessment of tetrakis(hydroxymethyl)phosphonium sulfate as dissolver for scales formed in sour gas wells

Wang¹,

Shen²,

Badairy³

et al. 2015

Int. J. Corros. Scale Inhib.

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Tetrakis(hydroxymethyl)phosphonium sulfate (THPS) is an environmental friendly biocide commonly used in oil fields. It also has been used to control iron sulfide precipitation for water injection and to remove deposits in oil production systems. In this study, THPS was examined as the dissolver for scale deposits formed on downhole tubular of high temperature sour gas wells. These deposits consisted of a wide range of mineral phases and are often dominated with various forms of iron sulfides and iron oxyhydroxides. The THPS based dissolvers were studied at various concentrations, pH values and with different additives. These additives included ammonium chloride, chelating agents and phosphonates. Experimental results indicated that the dissolving power was not proportional to THPS concentration. The maximum dissolution was observed in THPS concentration of 25 to 50%, depending on scale composition. Its dissolving power could be significantly increased with both ammonium chloride and chelating agents. The synergistic effect of ammonium chloride was largely attributed to pH decrease. As a result, the corrosivity of THPS solution to metallurgy was increased with the addition of ammonium chloride. The corrosion rate of mild steel was increased over three times with 4% ammonium chloride added. Contrary to previous reports, phosphonate additives decreased scale dissolution and induced new precipitation. Formation of calcium sulfate precipitates was also observed during dissolution of calcite, which will limit the THPS from scales containing calcium carbonate. This study also revealed the dissolution behavior of different minerals in the THPS solution. Iron oxyhydroxides had the highest dissolution rate, followed by calcite, siderite and pyrrhotite. Pyrite, marcasite and anhydrite were almost insoluble in the tested solutions. Results from this study can be used as guideline for the development and design of THPS based scale dissolvers.

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Section: Introductionmentioning

confidence: 99%

Laboratory assessment of tetrakis(hydroxymethyl)phosphonium sulfate as dissolver for scales formed in sour gas wells

Wang¹,

Shen²,

Badairy³

et al. 2015

Int. J. Corros. Scale Inhib.

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“…However, some antifouling agents are problematic because they can leach into the marine environment and cause harm to nontarget organisms. [2] With the ban on the use of tributyltin (TBT) compound in antifouling coatings in 2008, and the discovery of TBT alternatives, such as diuron and Irgarol 1051 damaging to marine organisms, searching for new and environmentally friendly alternatives has been widely focused on the field of antifouling technology. [3,4] Quorum-sensing inhibitors (QSIs) can inhibit the formation of the bacterial biofilm by disrupting bacterial cell-to-cell communication and the inhibitory effect on the bacterial biofilm can result in the decrease of adhesion and attachment of fouling algae and animals.…”

Section: Introductionmentioning

confidence: 99%

The influence of bacterial quorum-sensing inhibitors against the formation of the diatom-biofilm

Yang

Song

Zhu

et al. 2016

Chemistry and Ecology

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Quorum-sensing inhibitor (QSI) is one of the most promising and environmentally friendly agents for marine antifouling. In this study, the activities of three kinds of QSIs 3,4-dibromo-2(5)Hfuranone, 4-nitropyridine-N-oxide and indole were evaluated on the growth of two marine diatoms Cylinthrotheca sp. and Nitzschia closterium. At the same time, the effects of QSIs on the formation of the diatom-biofilm were also discussed. All the results showed that QSIs significantly inhibited the growth, and the effects depended on the dose and diatom species. The extracellular polymeric substance contents in the diatom-biofilm were significantly reduced by QSIs. However, the contents of polysaccharide in culture mediums were increased, which might result in the destruction of diatom cells. Combined with the results of crystal violet staining-biofilm and images of scanning electron microscopy, it was further demonstrated that QSIs inhibited the biofilm formation of Cylindrotheca sp., and the inhibitory effect of 4-nitropyridine-N-oxide was superior to that of 3,4-dibromo-2(5)H-furanone and indole.ARTICLE HISTORY

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“…These encompass both toxic and non-toxic surface coatings [42,43], biofouling resistant materials [44], physical removal of biofouling [45] and seawater treatment in water intakes through electrolysis, chemical dosing, UV or ultrasound [46,47,48]. Few studies have tried to determine or predict the effectiveness of these systems in conjunction with the MRE industry and those that have relate to specific materials or components [49,48,50].…”

Section: Prevention and Mitigationmentioning

confidence: 99%

Setting an agenda for biofouling research for the marine renewable energy industry

Loxton

Macleod

Nall

et al. 2017

International Journal of Marine Energy

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Abstract:Extensive marine growth on man-made structures in the ocean is commonplace, yet there has been limited discussion about the potential implications of marine growth for the wave and tidal energy industry. In response, the Environmental Interactions of Marine Renewables (EIMR) Biofouling Expert Workshop was convened. Discussions involved participants from the marine renewable energy (MRE) industry, anti-fouling industry, academic institutions and regulatory bodies. The workshop aimed to consider both the benefits and negative effects of biofouling from engineering and ecological perspectives. In order to form an agenda for future research in the area of biofouling and the marine renewable energy industry, 119 topics were generated, categorised and prioritised. Identified areas for future focus fell within four overarching categories: operation and maintenance; structured design and engineering; ecology; and knowledge exchange. It is clear that understanding and minimising biofouling impacts on MRE infrastructure will be vital to the successful development of a reliable and cost effective MRE industry.

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Current and emerging environmentally-friendly systems for fouling control in the marine environment

Cited by 153 publications

References 154 publications

Laboratory assessment of tetrakis(hydroxymethyl)phosphonium sulfate as dissolver for scales formed in sour gas wells

Laboratory assessment of tetrakis(hydroxymethyl)phosphonium sulfate as dissolver for scales formed in sour gas wells

The influence of bacterial quorum-sensing inhibitors against the formation of the diatom-biofilm

Setting an agenda for biofouling research for the marine renewable energy industry

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