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HANSA 03-2021

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Review SMM und Maritime Future Summit · Ballastwater Management Survey 2021 · Tanker-Schifffahrt · Ostsee-Häfen · Port State Control · Shortsea Shipping · Schiffsbanken HCOB & OVB


SCHIFFSTECHNIK | SHIP TECHNOLOGY Manufacturer Ahead Ocean Technology Product name Ahead-BMWS Approval status (type appr.) 2015 yes Ex. Appr. AMS (USCG) USCG Type approval status (amendment) Technology / Process steps solid-liquid separation Disinfection chemical physical filtration, UV Options Alfa Laval PureBallast 3.2 2015 yes yes yes, 2015 May 2019 (Sep 2020) filtration + UV (basket) N /A UV(MP) Aqua Engineering Company Ltd. Azienda Chimica Genovese (ACG) Bawat AquaStar Mac Gregor Ecolcell Bawat BWMS Mk2 2012 yes no 2015 yes yes yes, Jun 14 yes, Feb 15 Mar 2020 (pending) electrolytic system electrolytic system heat NaOCl (from seawater) Bio-UV Group Bio-Sea B 2017 yes yes yes, 2017 Jun 2018 (Mar 2020) filtration 20 µm mech. N /A UV (MP) BOS Cathelco BOS Natural Ballast Evolution 2014 yes, exp. Q1 /18 (Rev. G8) yes, Nov 14 Jun 2019 20 / 25 μm self cleaning filter N /A UV (MP) tank stripping, full integration to existing ships ballast control system Coldharbour Marine Limited Coldharbour Marine GLD BWTS LR / UK MCA approval Feb 2015 yes, Jun 15 none, no filters treatment by inert gas Cosco Shipbuilding Industry Company Blue Ocean Shield (BOS) De Nora BalPure Desmi Ocean Guard RayClean CompactClean 2011 yes 2011 yes 2014 yes yes yes yes, revised Dec 14 yes, N /A Nov 2013 Dec 2018 (Dec 2020) Apr 2019 (pending) filtration+UV filtration + electrolysis filtration+UV no EC / EA (only 1 % vol) NE no UV UV (LP) UV (MP) Ecochlor Inc. Ecochlor BWTS 2011 yes N /A yes, Oct 13 Aug 2017 (Sep 2020) filtration+ chemical injection ClO2 N /A N /A Ecospec Marine Technology Elite Marine Corp Semb-Eco Seascape yes yes, Oct 14 Oct 2020 UV/ LED-UV filtration+UV no UV Ultra- sound © Erma First »Full-flow electro-chlorination proposition is the best all-round approach for ship owners« In the Ballast Water Management System market, complexity reigns supreme. Picking the most effective solution for your vessel or fleet is not clear cut – and not all systems are made equal. We truly believe that a full-flow electro-chlorination proposition is the best all-round approach for ship owners. Research from shipbrokers Clarksons already suggests that 46% of the world’s merchant ships have installed electro-chlorination and 25% ultra-violet systems. Konstantinos Stampedakis Managing director, Erma First SPEAKERS’ CORNER Read the complete commentary of Kontantinos Stampedakis in our »Speakers’ Corner« at 42 HANSA – International Maritime Journal 03 | 2021

SCHIFFSTECHNIK | SHIP TECHNOLOGY Capacity on module / skid* (m³/ h) Investment € per m³/h Power requ. on average (kWh / 1000 m³) (SW =sea water, FW = fresh water) Chemical / Neutralizer used Weight (kg per m³/ h) Retention time (hrs) Effluent analysis Pressure drop (bar) Lifecycle main component Website 200–1,500 32–3,000 (larger by mult.) new 1,500 reactor 200–5,000 N /A SW = 51 kW (min) FW = 101 kW (min) N /A IMO: none USCG: 2,5 hrs optional 0.3–0.8 0–0.2 3,000 hrs 50–5,000 0,1 kW none none none none 10 years 10–2,000 55–1,500, flow rates not relevant with intank treatment N /A treatment capacity is unlimited 6–14 kW per UV-reactor 136 kW/ Hr for SW/ FW N /A non required. G8 system under IMO guidelines N /A dep. on size, Skid mounted A10 (1000m3/hr) = 7KG per m3/ hr IMO: none USCG: FW 0h BW: 19h MW 24h 48 hrs treatment can take place at any time N /A UV transmission UVT < 0.55 typ. 0.8 UV Lamp: 3,000–5,000 hrs reactor >5 y. filter 1.7 kg no retention time none CIO2 ensure MADC 0.2 mg / l N /A none max. 0.6 0.4 UV lamps: 12,000 hrs N /A 80–5,000 10–20 kW per 100 m3 0.4–0.6 All information without guarantee, no claim of beeing complete HANSA – International Maritime Journal 03 | 2021 43

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