DESMI Ocean Guard Release New Ballast Water Treatment System

MarineLink.com
Monday, October 14, 2013

The RayClean system from DESMI Ocean Guard A/S is a new supplement to the company’s ballast water treatment system (BWTS) product portfolio which already includes the OxyClean system. Both systems are based on mechanical filtration and UV irradiation with low-pressure lamps, but whereas a single OxyClean UV-unit can treat 100 m³/h of ballast water, the RayClean UV units can treat 300 m³/h. This makes the RayClean system more cost competitive at higher flow-rates, DESMI said.

The RayClean system sets new standards for the industry with regards to treatment performance and power consumption. When developing the system the goal was to design a unit capable of coping with challenging water conditions and at the same time reduce power consumption to the lowest level in the class. This has been achieved by use of highly energy-efficient low-pressure UV lamps combined with lamp dimming in clear water (high UV-T). By monitoring the UV intensity inside each UV-unit the lamps can be dimmed when the intensity is higher than the critical level. This results in a constantly applied UV dose independent of the UV-T of the water to be treated.

In typical water conditions with UV-T higher than 0.55, the flow rate through each UV-Unit is 300 m³/h, whereas energy consumption lies within the range from 5.0 to 8.0 kWh per 100 metric tons treated water, or 15.0 to 24.0 kW power consumption for a 300 m³/h system.

According to DESMI, type approval testing has demonstrated that the RayClean system can treat water with UV-Transmission as low as 0.33 in challenging conditions like very muddy water and pure fresh water, and still satisfy both the IMO and U.S. Coast Guard discharge standards.

RayClean operates fully automatically. The automation system will interface with the existing systems on board and the master control panel, consisting of a 15 inch color graphic touch screen, can be placed anywhere on the vessel.

DESMI Ocean Guard has completed all the landbased testing required under both the IMO and U.S. Coast Guard protocols. Five tests in high salinity water, five tests in brackish water and five tests in fresh water have been completed. All testing have been done at DHI in Denmark under the supervision of DNV. DNV has been appointed as Independent Laboratory by the U.S. Coast Guard and DHI has been approved as their subcontractor. This means that all the testing conducted with the RayClean system has been done in accordance with both IMO and USCG requirements.

Shipboard testing is progressing and is expected to be finalized early 2014.

desmioceanguard.com
 

Maritime Reporter October 2014 Digital Edition
FREE Maritime Reporter Subscription
Latest Maritime News    rss feeds

Environmental

EU Regs on Ship CO2 Reporting Complicates IMO Agreement

ICS Concerned that EU will Preempt IMO CO2 Negotiations.   The global trade association for shipowners – the International Chamber of Shipping (ICS) – is disappointed

World’s Largest Boxship is DNV GL classed

CSCL Globe, the world’s largest containership and the first of a series of five 19,100 TEU containerships ordered by China Shipping Container Lines (CSCL) in 2013,

ESSA's Fleet Upgradation Environmental Driven

State-controlled Exportadora de Sal SA de CV of Mexico ("ESSA"), one of the world’s largest salt exporters with a 10-million-ton annual production, has strengthened

News

EU Regs on Ship CO2 Reporting Complicates IMO Agreement

ICS Concerned that EU will Preempt IMO CO2 Negotiations.   The global trade association for shipowners – the International Chamber of Shipping (ICS) – is disappointed

World’s Largest Boxship is DNV GL classed

CSCL Globe, the world’s largest containership and the first of a series of five 19,100 TEU containerships ordered by China Shipping Container Lines (CSCL) in 2013,

New Players in Singapore Markets in OW's Absence

The downfall of a leading marine fuel supplier that prompted sellers to tighten credit terms in Singapore is skewing the post-OW Bunker jostle for market share

Marine Equipment

ESSA's Fleet Upgradation Environmental Driven

State-controlled Exportadora de Sal SA de CV of Mexico ("ESSA"), one of the world’s largest salt exporters with a 10-million-ton annual production, has strengthened

MSC Magnifica Completes Drydocking at Damen Shiprepair

After a very fast and successful 17-day drydocking the cruise ship MSC Magnifica left Damen Shiprepair Rotterdam (part of Damen Shiprepair & Conversion) for

DNV GL “Modification Excellence Award” for Schiffahrt

Classification society DNV GL recognised that E.R. Schiffahrt has retrofitted seven ultra large container vessels to meet the highest energy efficiency standards

Ballast Water Treatment

Cathelco BWTS Receives AMS Approval

Cathelco Ltd. has received Alternate Management Systems (AMS) acceptance from the U.S. Coast Guard for their ballast water treatment system.   AMS acceptance

 
 
Maritime Careers / Shipboard Positions Maritime Contracts Maritime Standards Navigation Pipelines Pod Propulsion Salvage Ship Electronics Shipbuilding / Vessel Construction Winch
rss | archive | history | articles | privacy | terms and conditions | contributors | top maritime news | about us | copyright | maritime magazines
maritime security news | shipbuilding news | maritime industry | shipping news | maritime reporting | workboats news | ship design | maritime business

Time taken: 0.1485 sec (7 req/sec)