A Novel Approach to Reduce the Environmental Footprint of Maritime Shipping  

减少海洋航运环境排放的新方法

作　　者：Domenico Flagiello Martina Esposito Francesco Di Natale Kent Salo 

机构地区：[1]The Sustainable Technologies for Pollution ControlLaboratory,Department of Chemical,Materials and Industrial Production Engineering,University of Naples Federico II,P.le V.Tecchio,80,80125 Naples,Italy [2]Department of Mechanics and Maritime Science,Chalmers University of Technology,Lindholmen Horselgangen,4,41296 Gothenburg,Sweden

出　　处：《Journal of Marine Science and Application》2021年第2期229-247,共19页船舶与海洋工程学报（英文版）

基　　金：Open access funding provided by Universita degli Studi di Napoli FedericoⅡwithin the CRUI-CARE Agreement。

摘　　要：Maritime shipping is a strategic sector with a strong international vocation and management.The need to define regulations valid for many different countries without generating disparities of treatment slowed down the formulation of environmental regulations,especially for atmospheric emissions.In particular,regulations pertaining to the reduction of sulphur compounds allowed two distinct approaches:the use of low-sulphur fuels or exhaust gas cleaning systems,the so-called Scrubbers.The actual implementation of these solutions presents specific concerns either related to the toxicity of atmospheric by-products and to the fuel cost or to the generation of polluting washwaters that may need treatment before discharge.In this paper we analyzed the potential environmental benefit deriving from the use of a distillate fuel,not compliant with current IMO Sulphur Regulations,together with a Scrubber.The pilot-scale experimental results indicated that a limited amount of water and/or scrubber volume is needed to reduce sulphur emissions below regulations on maritime shipping,especially with the addition of NaOH reaching a water-saving between 25%-33%compared to the use of pure seawater.Experiments indicated that scrubber washwater PAHs emissions are within the available water quality standards indicated by EU and USA guidelines.A bottom-up analysis on heavy metals concentration shed light on the prominent role of metal-parts corrosion on the washwater emissions.Taking into account for corrosion phenomena,the actual heavy metals concentration in the washwater deriving from scrubbing was normally below the water quality standards.

关 键 词：Ships environmental footprint Exhaust gas cleaning system Washwater emissions Marine distillate fuels Marine seawater scrubber Persistent pollutants 

分 类 号：U69[交通运输工程—港口、海岸及近海工程] X736[交通运输工程—船舶与海洋工程]