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Making production of water with desalination more sustainable 使海水淡化生产更具可持续性
Nature water Pub Date : 2024-11-18 DOI: 10.1038/s44221-024-00341-3
Vasilis Fthenakis, Zhuoran Zhang
{"title":"Making production of water with desalination more sustainable","authors":"Vasilis Fthenakis, Zhuoran Zhang","doi":"10.1038/s44221-024-00341-3","DOIUrl":"10.1038/s44221-024-00341-3","url":null,"abstract":"Challenges with brine management often result in the abandonment of desalination project plans. Minimizing or eliminating brine discharges from desalination plants can enable a wider adoption of a technology that is needed as climate change stretches fresh water supplies.","PeriodicalId":74252,"journal":{"name":"Nature water","volume":"2 11","pages":"1057-1058"},"PeriodicalIF":0.0,"publicationDate":"2024-11-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142672795","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Co-existing sanitation systems in dense urban areas 密集城区共存的卫生系统
Nature water Pub Date : 2024-11-18 DOI: 10.1038/s44221-024-00350-2
{"title":"Co-existing sanitation systems in dense urban areas","authors":"","doi":"10.1038/s44221-024-00350-2","DOIUrl":"10.1038/s44221-024-00350-2","url":null,"abstract":"A range of co-existing and integrated sanitation systems, from onsite to sewered and centralized to decentralized, is needed to improve sanitation access in rapidly expanding cities around the globe.","PeriodicalId":74252,"journal":{"name":"Nature water","volume":"2 11","pages":"1041-1041"},"PeriodicalIF":0.0,"publicationDate":"2024-11-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.nature.com/articles/s44221-024-00350-2.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142672803","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Analysis of energy, water, land and cost implications of zero and minimal liquid discharge desalination technologies 分析零排放和最小液体排放海水淡化技术对能源、水、土地和成本的影响
Nature water Pub Date : 2024-11-18 DOI: 10.1038/s44221-024-00327-1
Margaret G. O’Connell, Neha Rajendran, Menachem Elimelech, Jack Gilron, Jennifer B. Dunn
{"title":"Analysis of energy, water, land and cost implications of zero and minimal liquid discharge desalination technologies","authors":"Margaret G. O’Connell, Neha Rajendran, Menachem Elimelech, Jack Gilron, Jennifer B. Dunn","doi":"10.1038/s44221-024-00327-1","DOIUrl":"10.1038/s44221-024-00327-1","url":null,"abstract":"Desalination is increasingly essential to ensure access to water as climate change and population growth stress fresh water supplies. Already in use in water-stressed regions around the world, desalination generates fresh water from salty sources, and in doing so forms a concentrated brine that requires disposal. There is a growing push for the adoption of zero/minimal liquid discharge (ZLD/MLD) technologies that recover additional water from this brine, thereby reducing the liquid volumes requiring disposal. In this analysis, we evaluated the cost, energy and sustainability impacts of 7 overarching treatment trains with 75 different configurations. We found ZLD/MLD water recoveries ranging from 32.6% to 98.6%, but with steep energy and cost trade-offs that underscore the crucial roles of ion-specific separations, heat integration and clean energy sources. We explored the key trade-offs between cost, energy and water recovery, elucidating the increasingly tight connections that are central to the energy–water nexus and desalination. Desalination brine remains a challenge that zero/minimal liquid discharge aims to solve. Spanning 75 treatment scenarios, this analysis evaluates the trade-offs that underscore the crucial roles of ion specificity, heat integration and clean energy.","PeriodicalId":74252,"journal":{"name":"Nature water","volume":"2 11","pages":"1116-1127"},"PeriodicalIF":0.0,"publicationDate":"2024-11-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.nature.com/articles/s44221-024-00327-1.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142672774","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
A portfolio approach to achieving universal sanitation 实现普及卫生设施的组合办法
Nature water Pub Date : 2024-11-13 DOI: 10.1038/s44221-024-00336-0
Abishek Sankara Narayan, Caetano Dorea, Juliet Willetts, Liron Friedman, Pradip Kalbar, Kartik Chandran
{"title":"A portfolio approach to achieving universal sanitation","authors":"Abishek Sankara Narayan, Caetano Dorea, Juliet Willetts, Liron Friedman, Pradip Kalbar, Kartik Chandran","doi":"10.1038/s44221-024-00336-0","DOIUrl":"10.1038/s44221-024-00336-0","url":null,"abstract":"Sanitation could evolve beyond its traditional focus on public health and environmental protection to address broader challenges. A portfolio approach is proposed, integrating diverse systems at various scales to optimize benefits including economic value, resource efficiency, climate resilience and human dignity.","PeriodicalId":74252,"journal":{"name":"Nature water","volume":"2 11","pages":"1044-1047"},"PeriodicalIF":0.0,"publicationDate":"2024-11-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142672766","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Flocs as vectors for microplastics in the aquatic environment 作为水生环境中微塑料载体的絮状物
Nature water Pub Date : 2024-11-08 DOI: 10.1038/s44221-024-00332-4
Nan Wu, Stuart W. D. Grieve, Andrew J. Manning, Kate L. Spencer
{"title":"Flocs as vectors for microplastics in the aquatic environment","authors":"Nan Wu, Stuart W. D. Grieve, Andrew J. Manning, Kate L. Spencer","doi":"10.1038/s44221-024-00332-4","DOIUrl":"10.1038/s44221-024-00332-4","url":null,"abstract":"Microplastics (MPs) are an important component of suspended particulate matter in aquatic environments with two main transport modes, that is, as individual entities or in flocs. Despite its importance to MP pollution management, understanding and predicting MP flocculation remains a challenge. In this Article, we combined a meta-analysis of published data (>2,000 measurements) with new experimental data (>4,000 measurements) to investigate which size fraction of MPs can be incorporated into and transported by flocs in the aquatic environment. The size relationship between MPs and flocs can be used to predict the flocculation of MPs in various aquatic environments, and we have proposed a mathematical model to show that small MPs (<162 µm) are predominantly transported as flocs, regardless of the physicochemical characteristics of the MPs or water body. This provides valuable information to predict the transport modes of MPs, presenting a critical insight for multiple environmental settings and future pollution control strategies. Microplastics dispersed in the environment can be transported as single entities or in flocs. Analysis of existing and new data shows that microplastic transport can be modelled in a way that is consistent with a predominance of floc movement.","PeriodicalId":74252,"journal":{"name":"Nature water","volume":"2 11","pages":"1082-1090"},"PeriodicalIF":0.0,"publicationDate":"2024-11-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.nature.com/articles/s44221-024-00332-4.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142672770","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Overlooking the critical nexus between water, sanitation, and health 忽视水、卫生和健康之间的重要联系
Nature water Pub Date : 2024-11-05 DOI: 10.1038/s44221-024-00337-z
Ligy Philip
{"title":"Overlooking the critical nexus between water, sanitation, and health","authors":"Ligy Philip","doi":"10.1038/s44221-024-00337-z","DOIUrl":"10.1038/s44221-024-00337-z","url":null,"abstract":"Water, sanitation, and health are inseparable — poor planning risks contaminating water sources and sowing the seeds of long-term health crises.","PeriodicalId":74252,"journal":{"name":"Nature water","volume":"2 11","pages":"1042-1043"},"PeriodicalIF":0.0,"publicationDate":"2024-11-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142672799","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Water infrastructure of all, by all, for all 人人、由人人、为人人的水基础设施
Nature water Pub Date : 2024-11-05 DOI: 10.1038/s44221-024-00338-y
Taikan Oki, Junji Hashimoto, Michio Murakami, Michiru Sasagawa, Shinichiro Nakamura
{"title":"Water infrastructure of all, by all, for all","authors":"Taikan Oki, Junji Hashimoto, Michio Murakami, Michiru Sasagawa, Shinichiro Nakamura","doi":"10.1038/s44221-024-00338-y","DOIUrl":"10.1038/s44221-024-00338-y","url":null,"abstract":"Sustainable water management relies on water infrastructure that encompasses artificial structures and natural ecosystems, along with the cooperation of people and various organizations.","PeriodicalId":74252,"journal":{"name":"Nature water","volume":"2 11","pages":"1048-1050"},"PeriodicalIF":0.0,"publicationDate":"2024-11-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142672780","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Solar-driven sewage sludge electroreforming coupled with biological funnelling to cogenerate green food and hydrogen 太阳能驱动的污水污泥电转化与生物漏斗相结合,共同产生绿色食品和氢气
Nature water Pub Date : 2024-11-01 DOI: 10.1038/s44221-024-00329-z
Hu Zhao, Ziying Sun, Chenchen Li, Dan Wu, Li Quan Lee, Dan Lu, Yunbo Lv, Xiang Chu, Ying Li, Wenguang Tu, Ovi Lian Ding, Jin Zhou, Zhigang Zou, Yan Zhou, Hong Li
{"title":"Solar-driven sewage sludge electroreforming coupled with biological funnelling to cogenerate green food and hydrogen","authors":"Hu Zhao, Ziying Sun, Chenchen Li, Dan Wu, Li Quan Lee, Dan Lu, Yunbo Lv, Xiang Chu, Ying Li, Wenguang Tu, Ovi Lian Ding, Jin Zhou, Zhigang Zou, Yan Zhou, Hong Li","doi":"10.1038/s44221-024-00329-z","DOIUrl":"10.1038/s44221-024-00329-z","url":null,"abstract":"The ever-increasing generation of sewage sludge in megacities places a substantial burden on waste treatment systems. The complex and resilient structure of sludge renders conventional pretreatment and biological reclamation methods time-consuming, energy-inefficient and environmentally burdensome. Here we present an integrated mechano-electro-bioprocess that valorizes sludge with minimal environmental impact. We achieve nearly complete recovery of organics with ~91.4% total organic carbon (TOC), which are effectively converted into single-cell protein (>63% TOC) in a tandem process. Heavy metals are efficiently concentrated and stabilized, while simultaneously producing green hydrogen at an impressive efficiency and rate (~10% solar-to-hydrogen energy efficiency, rate >13 l per hour). A comprehensive life-cycle and techno-economic analysis confirms the substantial environmental and economic benefits of this approach. Notably, it results in a 99.5% reduction in CO2 emissions and a 99.3% decrease in energy depletion compared with conventional anaerobic digestion. As renewable electricity deployment expands globally, this mechano-electro-bioprocess offers a promising path towards sustainable development. The integrated process of mechanochemical fractionation-assisted and solar-driven electrochemical reforming, followed by biological funnelling, enables the efficient upcycling of sewage sludge. This process not only co-produces valuable single-cell protein and green hydrogen but also effectively removes heavy metal contaminants.","PeriodicalId":74252,"journal":{"name":"Nature water","volume":"2 11","pages":"1102-1115"},"PeriodicalIF":0.0,"publicationDate":"2024-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142672717","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Food production from sludge 利用污泥生产食品
Nature water Pub Date : 2024-11-01 DOI: 10.1038/s44221-024-00331-5
Mengmeng Du, Bocheng Qiu
{"title":"Food production from sludge","authors":"Mengmeng Du, Bocheng Qiu","doi":"10.1038/s44221-024-00331-5","DOIUrl":"10.1038/s44221-024-00331-5","url":null,"abstract":"Upcycling waste sewage sludge to food presents a promising approach to simultaneously addressing environmental concerns and achieving a circular economy. A hybrid system that integrates mechanochemical, electrochemical, and biological catalysis demonstrates the potential for single-cell protein synthesis from waste sludge.","PeriodicalId":74252,"journal":{"name":"Nature water","volume":"2 11","pages":"1053-1054"},"PeriodicalIF":0.0,"publicationDate":"2024-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142672759","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Faecal contamination of the world’s harbours 世界港口的粪便污染
Nature water Pub Date : 2024-10-25 DOI: 10.1038/s44221-024-00333-3
Blake G. Lindner, Konstantinos T. Konstantinidis
{"title":"Faecal contamination of the world’s harbours","authors":"Blake G. Lindner, Konstantinos T. Konstantinidis","doi":"10.1038/s44221-024-00333-3","DOIUrl":"10.1038/s44221-024-00333-3","url":null,"abstract":"Widespread sewage contamination of the world’s harbours can be revealed by combined faecal source tracking, but more work is needed to achieve source apportioning.","PeriodicalId":74252,"journal":{"name":"Nature water","volume":"2 11","pages":"1059-1060"},"PeriodicalIF":0.0,"publicationDate":"2024-10-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142672761","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
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