A multi-objective optimization approach for holistic planning of the water system in dry bulk ports: integrating life cycle assessment and life cycle costing
Huanjun Zhang , Xuanyue Xiong , Yi Li , Longfei Wang , Dong Li , Xuejun Feng
{"title":"A multi-objective optimization approach for holistic planning of the water system in dry bulk ports: integrating life cycle assessment and life cycle costing","authors":"Huanjun Zhang , Xuanyue Xiong , Yi Li , Longfei Wang , Dong Li , Xuejun Feng","doi":"10.1016/j.jwpe.2025.107456","DOIUrl":null,"url":null,"abstract":"<div><div>The increasing throughput of dry bulk ports is continuously escalating the demand for freshwater, challenging water resource management and port sustainability. Utilizing unconventional water resources is a potential solution, but the planning of water system designed to realize the efficient utilization of unconventional water resources in dry bulk ports remains poorly investigated. This study proposed a multi-objective optimization approach integrating life cycle assessment and life cycle costing for holistic planning of the water system. It considered environmental, economic, and social objectives while incorporating decision-makers' preferences. The utilization rate of unconventional water resources (URUWR), defined as the ratio of unconventional water resource utilization to total water consumption in ports, was regarded as the social objective. Huanghua Port was chosen as a case study. The results showed that the optimized schemes improved economic and environmental performance over the current scheme, while maintaining the URUWR ≥90 % (the development target for Huanghua Port). Specifically, prioritizing economic objectives reduced costs by 15.89 %–16.04 %, while prioritizing environmental objectives decreased environmental impact by 43.09 %–44.21 %; balancing both objectives achieved a 7.14 % cost reduction and a 20.11 % decrease in environmental impact. Contribution analysis revealed that optimizing the external water supply system was crucial for improving both objectives. Regarding cost-effectiveness, internal unconventional water resources were more advantageous and should be prioritized for development.</div></div>","PeriodicalId":17528,"journal":{"name":"Journal of water process engineering","volume":"72 ","pages":"Article 107456"},"PeriodicalIF":6.3000,"publicationDate":"2025-03-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of water process engineering","FirstCategoryId":"5","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S2214714425005288","RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"ENGINEERING, CHEMICAL","Score":null,"Total":0}
引用次数: 0
Abstract
The increasing throughput of dry bulk ports is continuously escalating the demand for freshwater, challenging water resource management and port sustainability. Utilizing unconventional water resources is a potential solution, but the planning of water system designed to realize the efficient utilization of unconventional water resources in dry bulk ports remains poorly investigated. This study proposed a multi-objective optimization approach integrating life cycle assessment and life cycle costing for holistic planning of the water system. It considered environmental, economic, and social objectives while incorporating decision-makers' preferences. The utilization rate of unconventional water resources (URUWR), defined as the ratio of unconventional water resource utilization to total water consumption in ports, was regarded as the social objective. Huanghua Port was chosen as a case study. The results showed that the optimized schemes improved economic and environmental performance over the current scheme, while maintaining the URUWR ≥90 % (the development target for Huanghua Port). Specifically, prioritizing economic objectives reduced costs by 15.89 %–16.04 %, while prioritizing environmental objectives decreased environmental impact by 43.09 %–44.21 %; balancing both objectives achieved a 7.14 % cost reduction and a 20.11 % decrease in environmental impact. Contribution analysis revealed that optimizing the external water supply system was crucial for improving both objectives. Regarding cost-effectiveness, internal unconventional water resources were more advantageous and should be prioritized for development.
期刊介绍:
The Journal of Water Process Engineering aims to publish refereed, high-quality research papers with significant novelty and impact in all areas of the engineering of water and wastewater processing . Papers on advanced and novel treatment processes and technologies are particularly welcome. The Journal considers papers in areas such as nanotechnology and biotechnology applications in water, novel oxidation and separation processes, membrane processes (except those for desalination) , catalytic processes for the removal of water contaminants, sustainable processes, water reuse and recycling, water use and wastewater minimization, integrated/hybrid technology, process modeling of water treatment and novel treatment processes. Submissions on the subject of adsorbents, including standard measurements of adsorption kinetics and equilibrium will only be considered if there is a genuine case for novelty and contribution, for example highly novel, sustainable adsorbents and their use: papers on activated carbon-type materials derived from natural matter, or surfactant-modified clays and related minerals, would not fulfil this criterion. The Journal particularly welcomes contributions involving environmentally, economically and socially sustainable technology for water treatment, including those which are energy-efficient, with minimal or no chemical consumption, and capable of water recycling and reuse that minimizes the direct disposal of wastewater to the aquatic environment. Papers that describe novel ideas for solving issues related to water quality and availability are also welcome, as are those that show the transfer of techniques from other disciplines. The Journal will consider papers dealing with processes for various water matrices including drinking water (except desalination), domestic, urban and industrial wastewaters, in addition to their residues. It is expected that the journal will be of particular relevance to chemical and process engineers working in the field. The Journal welcomes Full Text papers, Short Communications, State-of-the-Art Reviews and Letters to Editors and Case Studies