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Northern Bering sea and Bering Strait threatened by increasing ship waste

The northern Bering Sea and Bering Strait region has been an ecological, cultural, and economic center for Yup’ik, Cup’ik, St. Lawrence Island Yupik, and Inupiaq peoples for millennia. Yet, recently, a combination of factors, including less sea ice and more trade and resource development, has resulted to an increased vessel traffic in the region led by huge cargo vessels, tugs, and research vessels, and is expected to continue growing.

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Sewage system gains BV approval

  ACO Marine has received Bureau Veritas type approval for its new ACO Maripur NF sewage treatment system. The BV tests confirm that ACO Marine’s next generation treatment plant meets the stringent performance requirements of IMO Resolution MEPC 227(64), which enters into force in January 2016. Mark Beavis, ACO Marine’s managing director, said: “This is an important step forward in the continuing development of the Maripur product range. It confirms that the new treatment system goes beyond the new MEPC 227(64) standards to meet the revised discharge requirements, particularly Section 4.2.” The revision requires vessels with more than 12 passengers operating in IMO designated “special areas” to reduce the phosphorous and nitrogen content of treated effluent. There is no mandate for this in the existing requirement. “The new regulations are going to hit the industry hard,” said Beavis. “There are still a significant number of systems in operation that are failing to meet the existing standard let alone the new one.” Type-approval testing has verified that the ACO Maripur NF can reduce Coliform Bacteria to 17.5 count/100ml , TSS to 2.4mg/l , BOD to 7.3mg/l , and COD to 60mg/l , while nitrogen and phosphorous content is significantly below the mandated levels ...

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