{"id":25324,"date":"2019-05-23T01:30:21","date_gmt":"2019-05-22T23:30:21","guid":{"rendered":"https:\/\/eolog.com\/mepc-74-approves-revisions-of-marpol-annex-iv-and-its-guidelines\/"},"modified":"2019-05-23T01:30:21","modified_gmt":"2019-05-22T23:30:21","slug":"mepc-74-approves-revisions-of-marpol-annex-iv-and-its-guidelines","status":"publish","type":"post","link":"https:\/\/eolog.com\/en\/mepc-74-approves-revisions-of-marpol-annex-iv-and-its-guidelines\/","title":{"rendered":"MEPC 74 Approves Revisions of MARPOL Annex IV and its Guidelines"},"content":{"rendered":"<p> <br \/>\n<\/p>\n<p>To protect marine water from ships&rsquo; sewage discharges is no less important than any other environmental aspirations of&nbsp;the IMO. But its reality is appalling. With overwhelming majority, the MEPC 74 session (May 13-17) approved revisions of MARPOL Annex IV and its associated guidelines as proposed by Norway (MEPC 74\/14). The objective is clear. The overall framework of MARPOL Annex IV needs to be reviewed to better ensure that the performance of sewage treatment plants remains satisfactory throughout the lifetime of the system.<\/p>\n<p>Faith in&nbsp;the sewage guidelines and the associated type approval regime may have been eroded:&nbsp;it has been evident that multiple sewage treatment plants have been approved, but NOT in accordance with the Guidelines.<\/p>\n<p>This joint article illustrates another such certified non-conformity. In this case, the rule cannot be clearer, the certified non-conformity cannot be more blatant.<\/p>\n<p>Can the IMO turn the page without first of all acknowledging these issues, and at least trying to understand how and why these non-conformities have occurred under the type approval regime? Time will tell.<\/p>\n<p><strong>Sewage Treatment Plant with Influent including Recirculation during Performance Testing &ndash; a Non-Conformity, so why has it been Certified?<\/strong><\/p>\n<p><em>Co-authored by: <\/em><\/p>\n<p><span style=\"font-size:small\"><em>Dr. Wei Chen, Future Program Development Manager, Wartsila Water Systems Ltd, UK <\/em><\/span><\/p>\n<p><span style=\"font-size:small\"><em>Holger Hamann, Managing Director, Holger Hamann Consulting GmbH, Germany <\/em><\/span><\/p>\n<p><span style=\"font-size:small\"><em>Mark Beavis IEng IMarEng FIMarEST, Managing Director, ACO Marine s.r.o., Czech Republic, ACO Marine Systems GmbH, Germany<\/em><\/span><\/p>\n<p><span style=\"font-size:small\"><em>Felix von Bredow, Board of Hamman AG, Hamman AG, Germany<\/em><\/span><\/p>\n<p><span style=\"font-size:small\"><em>Dr. Elmar Dorgeloh, Manager Director, Development and Assessment Institute in Waste Water Technology at RWTH-Aachen University (PIA), Germany <\/em><\/span><\/p>\n<p><em>Endorsed by: <\/em><\/p>\n<p><span style=\"font-size:small\"><em>Tjitse Lupgens, Advisor Environmental, Boskalis, Netherlands<\/em><\/span><\/p>\n<p><span style=\"font-size:small\"><em>Benny Carlson, Chairman and owner, Marinfloc, Sweden<\/em><\/span><\/p>\n<p><span style=\"font-size:small\"><em>Ronni Palmqvist, Director and Owner, Dancompliance ApS, Denmark<\/em><\/span><\/p>\n<p><span style=\"font-size:small\"><em>Dr. Daniel Todt, Project Manager R&amp;D, Ecomotive AS, Norway<\/em><\/span><\/p>\n<p><span style=\"font-size:small\"><em>Helge &Oslash;stby, Senior Technical Advisor, Jets Vacuum AS, Norway<\/em><\/span><\/p>\n<p><span style=\"font-size:small\"><em>Greg Shannon, Technical Sales Director, JOWA AB, Sweden <\/em><\/span><\/p>\n<p><span style=\"font-size:small\"><em>Antony Chan, Engineering Manager, Victor Marine Ltd., UK<\/em><\/span><\/p>\n<p><span style=\"font-size:small\"><em>Tobias Kaulfuss, Manager &#8211; Marine Sewage Treatment, RWO &#8211; Veolia Water Technologies Deutschland GmbH, Germany<\/em><\/span><\/p>\n<p><span style=\"font-size:small\"><em>Markus Joswig, Head of Marine Department, Testing Institute for Wastewater Technology GmbH (PIA GmbH), Germany<\/em><\/span><\/p>\n<p>&quot;<strong>Influent should be assessed without the contribution of any return liquors, wash water, or recirculates, etc., generated from the sewage treatment plant,&quot;<\/strong>&nbsp;so says the IMO&rsquo;s MEPC.227(64) Guideline [1] on performance test specifications. Recirculation from a sewage treatment plant is permitted during a performance test, but only if it is returned to downstream of the influent sample point and influent flow meter. The requirement is clearly illustrated in a System Diagram within the Guideline (Figure 1). The same Diagram is also specified within the USCG&rsquo;s voluntary compliance process [2] whereby a Marine Sanitation Device, an equivalent terminology of sewage treatment plant, can be certified to meet the IMO&rsquo;s MEPC.227(64) Guideline, even though the USA is not a signatory country to the IMO&rsquo;s sewage rules.<\/p>\n<p><img decoding=\"async\" alt=\"\" src=\"https:\/\/eolog.com\/wp-content\/uploads\/2019\/05\/MEPC-74-Approves-Revisions-of-MARPOL-Annex-IV-and-its.jpg\" style=\"height:417px;width:750px\" \/><\/p>\n<p>Figure 1. System diagram of sewage treatment plant performance test in MEPC.227(64)<\/p>\n<p>Both the IMO [1] and the U.S.&nbsp;[3] also require that a sewage treatment plant be tested with fresh sewage of a minimum total suspended solids (TSS) concentration of 500 mg\/l, which can be reached by adding primary sewage sludge when needed.<\/p>\n<p>So, when recirculation is included in the influent (Figure 2), i.e., when it is returned to upstream of influent sample point and flow meter (the red line in Figure 2), then, the influent samples Ci would contain solids from the sewage treatment plant which no longer represent fresh raw sewage or primary sludge. Furthermore, the influent flow rate Qi recorded would no longer represents the capacity of the sewage treatment plant because it would have been inflated by the recirculation flow (the red line in Figure 2).<\/p>\n<p><img decoding=\"async\" alt=\"\" src=\"https:\/\/eolog.com\/wp-content\/uploads\/2019\/05\/1558567821_237_MEPC-74-Approves-Revisions-of-MARPOL-Annex-IV-and-its.jpg\" style=\"height:418px;width:750px\" \/><\/p>\n<p>Figure 2. Performance test configuration which does not conform to MEPC. 227(64)<\/p>\n<p>Yet, multiple sewage treatment plants have been tested with recirculation included in the influent, contravening the requirements of both the IMO and the USCG rules, and subsequently approved and certified [4].<\/p>\n<p>This non-conformity issue, together with other certified magic boxes claiming <span style=\"color:null\">no sludge production and chlorination disinfection without de-chlorination, provides the sad undertone of our current approval regime, and is further evidence of a huge gap between rules and realities. Th<\/span>e gatekeepers&rsquo; skills have been tested, when it comes to marine environmental solutions.<\/p>\n<p>The rules can be crystal clear, but what happens when they are not followed, and the certified non-conformities are spreading as we speak? We endeavour to provide further updates.<\/p>\n<p>It may be time for the IMO, the USCG, and the assigned approval assessment bodies to acknowledge the non-conformity issues and to identify the root causes. We call for support from parties who may be in position to raise these issues with the IMO for review and action. For those who wish to be contacted for supporting further updates on this subject, please email <a href=\"mailto:wei.chen2@wartsila.com\">wei.chen2@wartsila.com<\/a>.<\/p>\n<p><em>References<\/em><\/p>\n<p>[1] Paragraph 5.2.1 and 5.2.3, and Figure 1 of MEPC.227 (64). <a href=\"http:\/\/www.imo.org\/en\/OurWork\/Environment\/PollutionPrevention\/Sewage\/Documents\/Resolution%20MEPC.227(64).pdf\">http:\/\/www.imo.org\/en\/OurWork\/Environment\/PollutionPrevention\/Sewage\/Documents\/Resolution%20MEPC.227(64).pdf<\/a><\/p>\n<p>[2] Figure 1 of NVIC 1-09 Ch1. <a href=\"https:\/\/www.dco.uscg.mil\/Portals\/9\/DCO%20Documents\/5p\/5ps\/NVIC\/2009\/NVIC_1-09(Ch1).pdf\">https:\/\/www.dco.uscg.mil\/Portals\/9\/DCO%20Documents\/5p\/5ps\/NVIC\/2009\/NVIC_1-09(Ch1).pdf<\/a><\/p>\n<p>[3] Paragraph (c) and (d) of 33 CFR 159.121 <a href=\"https:\/\/www.law.cornell.edu\/cfr\/text\/33\/159.121\">https:\/\/www.law.cornell.edu\/cfr\/text\/33\/159.121<\/a><\/p>\n<p>[4] Comments and the linked materials that led to &lsquo;Observation 2&rsquo; and &lsquo;Observation 3&rsquo;. <a href=\"https:\/\/maritime-executive.com\/editorials\/call-for-action-on-sewage-treatment-with-no-sludge-production\">https:\/\/maritime-executive.com\/editorials\/call-for-action-on-sewage-treatment-with-no-sludge-production<\/a><\/p>\n<p><br \/>\n<br \/>News source: http:\/\/maritime-executive.com <a target=\"_blank\" href=\"https:\/\/www.maritime-executive.com\/article\/mepc-74-approves-revisions-of-marpol-annex-iv-and-its-guidelines?rand=17996\" rel=\"noopener noreferrer\">Go to original post<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>To protect marine water from ships&rsquo; sewage discharges is no less important than any other environmental aspirations of&nbsp;the IMO. But its reality is appalling. With overwhelming majority, the MEPC 74 session (May 13-17) approved revisions of MARPOL Annex IV and its associated guidelines as proposed&#8230;<\/p>\n","protected":false},"author":4,"featured_media":25325,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"inline_featured_image":false,"footnotes":""},"categories":[581],"tags":[],"class_list":["post-25324","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-news-en"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.2 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>MEPC 74 Approves Revisions of MARPOL Annex IV and its Guidelines - Eolog | Eastern Overseas Logistics<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/eolog.com\/en\/mepc-74-approves-revisions-of-marpol-annex-iv-and-its-guidelines\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"MEPC 74 Approves Revisions of MARPOL Annex IV and its Guidelines - Eolog | Eastern Overseas Logistics\" \/>\n<meta property=\"og:description\" content=\"To protect marine water from ships&rsquo; sewage discharges is no less important than any other environmental aspirations of&nbsp;the IMO. 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