Case Studies

HOW TO PROTECT A JETTY OR PIER FROM AN OIL SPILL

BACKGROUND:

Our client based on the MediterraneanCoast has a fuel jetty and needed a permanently installed oil spillresponse solution that can be deployed and operated easily by 1or 2 personnel. The client required a system that could adjust automaticallyto the large tidal range.

OBJECTIVE:

To provide a complete boom systemto be rapidly deployed prior to fuel transfer operations taking place. Thesystem must be able to cope with changing sea levels and conditions andneed minimal operating personnel. Itmust be possible to leave the boomsystem permanently located at thejetty and in the water ready for use.

SOLUTION:

The system supplied consisted of 4 Foam Filled Sentinel Booms with fixedVikoSeal hammerheads mounted midwayon the outermost booms. Thiscreated a Primary Containment Zoneof approximately 30m x 5m.The fixed booms were installed underthe Jetty connecting to the piles withslider mechanisms to allow the boomto rise and fall with the tide and swell.The sliders are attached to the pilesusing stainless steel bands that requireno modification to the piles, makingthem ideal to retrofit to existinginstallations.

The VikoSeal Booms integrated with the fixed boom can be raised when not in use and lowered into position once the vessel is alongside and prior to loading/unloading operations commencing.

More details from: E: kmurray@vikoma.com T: +44 (0) 1983 201882 W:www.vikoma.com

EFFECTIVE USE OF OIL SPILL EATER II

CUSTOMER: DUNTON ENVIRONMENTAL

Dunton Environmental – they challenge traditional thinkingin the construction industry andcontinuously develop new ideas tosolve complex environmental groundand contamination problems todeliver their clients real programmeand cost benefits. Services includeremediation contracting, wastemanagement, Japanese knotweedtreatment, soil & water treatmentas well as contaminated landassessments.

CHALLENGE:

To efficiently & safely acceleratethe reduction in TPH levels ofhydrocarbon contaminated soilsonsite in order to enable their futureuse. The soil is initially screenedto remove any builder’s rubble anddeleterious materials. It is then treatedaccording to the chemical nature ofthe soils, either by way of: acceleratedbioremediation to degrade anyresidual organic pollutants such asTPH and PAH (including Benzo (a)pyrene); or by the addition of Dunton’schemical oxidation compounds whichinduce chemical reduction.

OSE II SOLUTION

The Dunton team were interested to understand how effective Oil Spill Eater II (OSE II) could be at accelerating the bioremediation of hydrocarbons & ran an evaluation on an initial small quantity of contaminated soil. The accelerated reduction in TPH values met Dunton’s requirements & they agreed to implement the use of OSE II on larger scale bioremediation of hydrocarbon contaminated ex-situ soil stockpiles.

APPLICATION

Chemical pollutants Hydrocarbon contaminants are common on most brownfield developments, often the result of former works, in ground tanks or similar. Dunton has developed a rapid treatment technology for a wide variety of chemical pollutants in soils.

APPLICATION METHOD

Using a combination of OSE II with natural water, this is then sprayed towards soils that are being aerated to improve the oxygen levels within the soils which along with OSE II improve the conditions for microorganisms to naturally grow within the soils. This increase in microbial activity within the soils accelerates the biodegradation of hydrocarbons with the end result only being CO2 & water.

RESULT

As a result of using OSE II to reducethe TPH & PAH contamination levelswithin hazardous soils from a varietyof sites across the UK it has providedDunton’s clients with a more efficientand quicker form of treating theircontaminated soils providing them acost benefit and a certainty that theycan meet their project’s timeline. Alltreated contaminated soils are reusedfor various restoration projectsin the local area to contribute towardsa circular economy and improvingsustainability within the constructionsector.

A&S International Ltd:E: hello@aands-international.comT: +44 (0)118 930 4321

LOCH ETIVE SUBSEA CABLE INSTALLATION

Briggs Marine have safely and successfully completed the installation of a 1700m subsea power cable across Loch Etive on behalf of Green Highland Renewables. This subsea link has been designed to connect three run-of-river hydroelectric power schemes to the electricity distribution network. Great teamwork with Green Highland Renewables ensured this project was completed on schedule under COVID-19 restrictions and the glare of some welcome Scottish sunshine.

The beautiful location of Loch Etive was not without its challenges, namely the air draft and shallow water restrictions under the Connel Bridge at the famous Falls of Lora. For this reason, Briggs Marine selected the shallow drafted Forth Jouster and Harry McGill from our fleet, which provided an efficient cable installation solution.

This project builds on our relationship with Green Highland Renewables, following a successful cable installation across the deep waters of land locked loch Tay three years ago. This type of installation further underlines Briggs Marine as a major cable installer and maintainer in North West Europe, designing and producing innovative solutions to complex problems.

Our highly skilled workforce, services and fleet ensure Briggs Marine deliver cost effective andsustainable solutions to the powercable industry.

More details from:

T: +44 (0)1592 872939 E:enquiries@briggsmarine.com W: www.briggsmarine.com