Ballast Water Tech: N.E.I.

Thursday, February 21, 2013

As ship owners globally face the eventual mandate to install ballast water management technology onboard their ships – a refit which is touted as the most expensive equipment refit ever – Maritime  Reporter & Engineering News in its February 2013 edition examines emerging Ballast Water Technologies for consideration.


In 2002 N.E.I. began development of a de-oxygenation ballast water treatment system – the Venturi Oxygen Stripping (VOS). In 2007, N.E.I. obtained the world’s first IMO Certification-Liberia. 
Venturi Oxygen Stripping (VOS) is a physical process, which removes Dissolved Oxygen (DO) from the ballast water during intake only (no retreatment is required during discharge). VOS does not require any filtration or active substances, and does not require changing ballast pumps due to flow restrictions. VOS leverages a highly efficient Stripping Gas Generator (similar to an Inert Gas Generator) to produce a very low oxygen gas (Stripping Gas). This gas is introduced to the ballast water via a Venturi Injector (VI). The VI generates extreme cavitation/vacuum in-line, creating a bubble emulsion in the ballast water. Within ~10 seconds, more than 95% of the DO is stripped out of solution, and simply vented to atmosphere. Any species dependent upon oxygen is suffocated, treating many controlled species within an hour. However, the oxygen levels are high enough to prohibit anaerobic life. Many organisms are treated during the venturi phase of treatment itself (due to the sheering forces intrinsic to the cavitation process).
VOS is currently Type Approved with a Treatment Rated Capacity (TRC) of 6,800 cu. m./hr.
VOS equipment has been installed on Bulkers, Tankers, and Containerships. A total of 58 systems have been sold to date; specifically, 21 Installed (3 vessels not yet commissioned), 18 commissioned vessels,
www.NEI-marine.com
 

(As published in the February 2013 edition of Maritime Reporter & Engineering News - www.marinelink.com)

Maritime Today


The Maritime Industry's original and most viewed E-News Service

Maritime Reporter June 2016 Digital Edition
FREE Maritime Reporter Subscription
Latest Maritime News    rss feeds

Container Ships

UASC Shareholding States Vote to Back Hapag-Lloyd Merger

United Arab Shipping Company (UASC) said its six shareholding states backed a merger deal with German container shipping line Hapag-Lloyd AG at a meeting on Wednesday.

FMC's Doyle Addresses VGM Rules

U.S. Federal Maritime Commission (FMC) Commissioner William P. Doyle issued a statement on the upcoming implementation of the SOLAS Convention’s verified gross mass (VGM) requirements:   On Friday,

Essberger Fleet Moves to Marlink’s Sealink VSAT Service

The Hamburg headquartered John T. Essberger (JTE) Group will migrate the primary communication systems of its entire fleet to Sealink, Marlink’s global maritime broadband VSAT service.

Vessels

VLCC Delivered to Gener8 Maritime

Gener8 Maritime, Inc., a U.S.-based provider of international seaborne crude oil transportation services, has taken delivery of the ECO VLCC the Gener8 Constantine on June 27,

Future LCS Charleston’s Keel Authenticated

A ceremony was hosted to celebrate the keel authentication of the U.S. Navy's future USS Charleston (LCS 18), the ninth Independence variant littoral combat ship, June 28.

Hybrid RoPax Ferry Delivered to Royal TESO

Hybrid RoPax ferry Texelstroom has been delivered to Koninklijke N.V. Texels Eigen Stoomboot Onderneming (Royal TESO).   This latest generation symmetrical ferry is powered by efficient,

Ballast Water Treatment

Groningen Seaports First in Line for Damen InvaSave

The first production version of Damen’s InvaSave ballast water treatment system – intended for use at Groningen Seaports – will be on display at the upcoming ‘DelfSail’

Cathelco Supply BWT System for Cable Laying Vessel

Cathelco have supplied a ballast water treatment (BWT) system for the C.C. Pacifique, a steel barge which is being converted into a cable laying vessel for Coastal Carriers BV of the Netherlands.

Alfa Laval Announced Plans for SMM 2016

At SMM 2016, Alfa Laval will mark the 100th anniversary of its first marine separator, and present marine customers with more new solutions.   Over the course of a century,

 
 
Maritime Careers / Shipboard Positions Maritime Security Maritime Standards Naval Architecture Offshore Oil Pod Propulsion Port Authority Salvage Sonar Winch
rss | archive | history | articles | privacy | 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: 0.1168 sec (9 req/sec)