atg Evoqua’s Offshore Solutions Meet Water Quality Standards
The process of disinfecting water with UV light is a proven technology for drinking and process water in many industries, however the high water quality standards required by the offshore industry commanded the disinfection systems to be engineered way beyond the normal specification of many manufacturers.
From small scale platform applications such as crew drinking water supplies to large water injection packages treating over 10,000 m3/h, atg Evoqua can offer a range of UV disinfection / treatment solutions to suit any application. As the clear market leader for the offshore and marine industry, atg Evoqua can offer solutions for a range of offshore applications.
Pictured above: atg Evoqua mobile containerised UV plant – 6,000 m3/hr capacity; for sea water disinfection (99.9% SRB Reduction) used for gas pipeline hydro-testing.
ATEX & IECEX Hazardous Area UV Systems
ATEX systems for use in hazardous zones 1 and 2 require engineering far beyond the specification of normal Ultraviolet disinfection systems. atg Evoqua have engineered a new range of ATEX duty/standby packaged products for installation on both offshore platforms and ocean going shipping vessels. atg Evoqua are one of the few suppliers able to offer Low Pressure UV systems as an both an ExP and ExD Solution, and remain the only UV company in the world who can offer an ExD rated Medium Pressure solution.
UV Skid Packages for Crew Drinking Water Supplies
atg Evoqua are the worlds’ leading provider of skid based UV disinfection packages for the offshore industry. atg UV have provided skid packages to some of the worlds’ leading offshore brands such as Shell, Texaco, BP, Conoco Phillips, Statoil and many others. Our experience includes designing and manufacturing skid packages to Norsok, NiPH, GOST and ATEX specifications.
Well Injection Packages
atg Evoqua have provided down-hole injection systems treating over 4,000 m3/hr to the world’s leading offshore operators. UV disinfection, supplemented by periodic shock dosing using chemical biocides is perfectly suited to down-holeinjection applications, and has proved to be both a cost effective and highly efficient method of removing harmful microorganisms such as SRB’s (Sulphate Reducing Bacteria) from water sources.
A correctly sized atg UV system dramatically reduces the amount and frequency of chemical dosing and vastly reduces the associated handling / transportation costs. Estimated savings for a down-hole injection application switching to UV treatment are substantial, and could be as much as £1 million a year in chemical biocide cost savings alone.
Mobile UV Plants for SRB Reduction
atg Evoqua have provided a number of specialist UV packages for the treatment of Sulphate Reducing Bacteria (SRB’s), which when left untreated can lead to corrosion, scaling and the formation of slime. atg Evoqua’s offshore SRB treatment packages are highly specialised, and are often supplied as a fully integrated containerised package, with all equipment including UV chambers, control panels, manifolds and valves housed within a single compact, built for purpose offshore container. Additionally atg Evoqua have experience with using exotic materials, such as Duplex and super duplex for chambers and manifolds.
Applications for atg UV mobile UV plants include:
- UV Disinfection Packages for Shale Gas Recovery – Hydraulic Fracking.
- UV Disinfection Packages for Hydro-Testing (oil and gas pipelines).
- UV Disinfection Packages for Well Injection.
- Effluent Discharges (Shipping and Cruise Liners)
Cruise liners and ocean going vessels are required to treat their effluent waste water with UV disinfection systems in order to comply with the Alaska standard. atg Evoqua have supplied a large number of UV systems for the treatment of waste water and effluent discharges to some of the world’s leading brands. atg Evoqua have developed a bespoke range of multi-lamp low pressure UV systems designed specifically for operation in marine environments (high temperatures, vibrations, humidity).
Ballast Water Packages
All ocean-going vessels take on water to provide ballast and stability, where upon arrival to their destination the water is released. This water contains marine microorganisms such as zooplankton, veligers, algae, bacteria, viruses and the eggs, cysts, and larvae of various species. When discharged, these transported species threaten to invade the natural balance of local eco systems, often out-competing native species and causing serious damage both environmentally and economically. Ballast discharge is now treated as one of the greatest threats to the world’s oceans.
atg Evoqua offers highly advanced UV disinfection systems for the treatment of ships ballast water before it is released into the oceanic environment. Our leading compact chamber designs allow for ease of installation into restricted spaces and provides protection against microorganisms, zooplankton, veligers, algae, bacteria, viruses, eggs, cysts, and larvae without the use of chemicals. This leads to an environmentally friendly solution to the challenges faced by marine engineers worldwide.
Our Water Treatment System Offer Flexibility
A typical atg UV disinfection system is highly compact and easy to operate. The atg UV design utilizes an inline configuration that makes it easy to install into existing pipework with minimal disruption. Furthermore, atg UV’s systems are fully automatic and unlike traditional chemical treatments cannot be overdosed and do not increase the toxicity of the water with harmful biocides.
Systems are available as both standard products and as bespoke designs to suit a specific installation requirement.
For further information on any aspect of Ultraviolet treatment, please contact atg Evoqua on: +44 (0)1942 216161.