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 January 2015 Digital Edition
FREE Maritime Reporter Subscription
Latest Maritime News    rss feeds

Environmental

KR Launches Software to Aid ECA Compliance

The Korean Register (KR) has launched an in-house developed software program to assist vessels with fuel oil change over when complying with the new low sulphur regulations.

Study Examines Impacts of Inland Waterway Investment

The National Waterways Foundation (NWF) has commissioned and released a two-year study to examine the U.S. inland waterways’ national economic return on investment

Winter Storm Closes New York/New Jersey Terminals

All marine terminals at the Port of New York and New Jersey are expected to close around 3: 30 p.m. today and remain closed all day tomorrow as a severe winter

News

Libya Forces Tanker Away from Supplying Rival Government

Libya's recognized government said it forced a tanker from delivering fuel to its rival administration, diverting the vessel to its own territory by threatening an air attack on it.

BP Freezes Pay in 2015 to Cut Costs

BP is freezing base pay across the group this year, the latest in a series of steps by oil majors to cut costs in response to sinking oil prices.   Over the past year,

Metcalf to Succeed Cox at CSA Helm

Kathy J. Metcalf will assume the role of president and CEO of the Chamber of Shipping of America (CSA), succeeding Joseph J. Cox, who will retire on May 31, 2015,

Marine Equipment

Huisman Cranes for New Maersk Subsea Support Vessels

In December 2014, Huisman secured a contract from COSCO (Dalian) Shipyard for the delivery of four customized 400mt Rope Luffing Knuckle Boom Cranes and two 100mt

Coast Guard Cutter William Trump Commissioned

The Coast Guard Cutter William Trump was commissioned during a ceremony at Coast Guard Sector Key West Saturday Jan. 24, 2015. The Trump is the 11th fast response cutter in the Coast Guard fleet.

Zamakona Refits Vessels VOS HERA & HADES

The Zamakona Yards in Pasajes has successfully finished the works carried o t in the vessels VOS HADES and VOS HERA that belong to the Company Vroon Offshore Services UK.

Ballast Water Treatment

The Ballast Water Management Conundrum

U.S. System Approvals are Key; Detailed Pre-Planning Urged Ten years on, there’s little certain about ballast water management regulations that the industry can

N-KOM Sees Increased Tanker Business

Nakilat-Keppel Offshore & Marine (N-KOM), which recently celebrated its fourth year in operation, has seen an increasing number of tankers dry docking at its facility in Qatar.

Editorial: BWTS. Like it or Not, Here it Comes

With age comes perspective, and in my 20 plus years reporting on this industry I have seen my fair share of regulation that has served to ‘raise the hackles’ of ship owners.

 
 
Maritime Careers / Shipboard Positions Maritime Security Naval Architecture Pipelines Salvage Ship Electronics Ship Repair Shipbuilding / Vessel Construction Sonar 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: 0.1407 sec (7 req/sec)