Wastewater treatment launch at SMM

The next generation ACO Maripur NF sewage treatment system has been specially developed to ensure operators comply with the impending IMO Resolution MEPC 227 (64), including Section 4.2.

This resolution requires vessels with 12 or more passengers operating in IMO designated special areas to effectively treat phosphorous and total nitrogens.

“Currently there are only a limited number of ship wastewater treatment plant technologies on the market that meet the new requirements,” said Mark Beavis, managing director, ACO Marine.

He pointed out that this is largely due to the fact that systems that have traditionally relied upon dilution as part of the treatment process will find it more difficult to meet the new testing and sampling standards of the new regulation.

Mr Beavis said: “Dilution is not a solution to pollution, it is not treating it, it is reshaping it, we can treat it and remove the pollutants.”

Compatible with both gravity and vacuum systems, the ACO Maripur NF is a high-end, black and grey water treatment system that combines the company’s extensively researched and developed ACO-MF filtration technology with its new patented ACO ‘bio-sword’, a self-cleaning filtration element that effectively treats a ship’s wastewater to well below the mandatory levels.

The system works by way of a biochemical purification process taking place in a first-stage activation chamber where organic pollution and ammonia is removed. Simultaneous to this aerobic phase is an anoxic cycle where nitrate is removed. Biochemical phosphorus removal is achieved by dosing with aluminium or iron-based coagulants which ensure the effective precipitation of the phosphorous during the final filtration stage.