Nature water最新文献_第10页

Decarbonization potential of floating solar photovoltaics on lakes worldwide 全球湖泊漂浮太阳能光伏发电的脱碳潜力

Nature water Pub Date : 2024-06-04 DOI: 10.1038/s44221-024-00251-4

R. Iestyn Woolway, Gang Zhao, Sofia Midauar Gondim Rocha, Stephen J. Thackeray, Alona Armstrong

{"title":"Decarbonization potential of floating solar photovoltaics on lakes worldwide","authors":"R. Iestyn Woolway, Gang Zhao, Sofia Midauar Gondim Rocha, Stephen J. Thackeray, Alona Armstrong","doi":"10.1038/s44221-024-00251-4","DOIUrl":"10.1038/s44221-024-00251-4","url":null,"abstract":"As climate change progresses, there is increasing emphasis on net zero and energy system decarbonization. Several technologies are contributing to this agenda, but among these, the growth of solar photovoltaics has consistently exceeded all projections. With increasing land-use pressures, and the expense of building-mounted photovoltaics, water surfaces are increasingly being exploited to host these technologies. However, to date, we lack an understanding of the global potential of floating solar photovoltaics and, as such, we do not yet have sufficient insight to inform decisions on (in)appropriate areas for future deployment. Here we quantify the energy generation potential of floating solar photovoltaics on over 1 million water bodies worldwide (14,906 TWh). Our analysis suggests that with a conservative 10% surface area coverage, floating solar photovoltaics could produce sufficient energy to contribute a considerable fraction (16%, on average) of the electricity demand of some countries, thus playing an important role in decarbonizing national economies. Floating photovoltaics represent a promising alternative to land-based solar panels. A large-scale analysis, comprising 1 million water bodies worldwide, shows that floating photovoltaics could contribute 16%, on average, of the electricity demands of some countries.","PeriodicalId":74252,"journal":{"name":"Nature water","volume":"2 6","pages":"566-576"},"PeriodicalIF":0.0,"publicationDate":"2024-06-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.nature.com/articles/s44221-024-00251-4.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141252298","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

Wastewater denitrification driven by mechanical energy through cellular piezo-sensitization 通过细胞压电敏化机械能驱动废水脱氮

Nature water Pub Date : 2024-06-03 DOI: 10.1038/s44221-024-00253-2

Jie Ye, Guoping Ren, Lu Liu, Dong Zhang, Raymond Jianxiong Zeng, Mark C. M. van Loosdrecht, Shungui Zhou

{"title":"Wastewater denitrification driven by mechanical energy through cellular piezo-sensitization","authors":"Jie Ye, Guoping Ren, Lu Liu, Dong Zhang, Raymond Jianxiong Zeng, Mark C. M. van Loosdrecht, Shungui Zhou","doi":"10.1038/s44221-024-00253-2","DOIUrl":"10.1038/s44221-024-00253-2","url":null,"abstract":"Mechanical energy as a main energy form in wastewater treatment plants is generally used to enhance the physical mixing of reactor compartments. However, utilizing mechanical energy for directly driving microbial metabolism has not been explored. Here we developed an innovative mechano-driven bio-denitrification approach, whereby the electronic energy produced from mechanical energy by piezoelectric materials supported the metabolism of denitrifying microorganisms. When autotrophic denitrifying bacterium Thiobacillus denitrificans was stimulated with in situ formed struvite under mechanical agitation, a powerful cellular piezo-sensitization enabled nearly 100% nitrate reduction in synthetic wastewater with H2O as the electron donor. Such a self-sustained bio-denitrification process powered by mechanical energy was successfully implemented in real wastewater treatment, resulting in a maximum 117% increase of nitrate removal. These findings introduce a new paradigm for wastewater denitrification, unveiling previously unappreciated mechanisms for the energy–microbe–element nexus during wastewater treatment, and offer crucial insights for optimizing wastewater treatment plant operation. The use of mechanical energy in wastewater treatment has been associated with accelerating physical mixing in compartments, and its effect on microbial activities has not been explored. The implementation of the developed mechano-driven bio-denitrification approach in real wastewater treatment provides a new method for wastewater denitrification.","PeriodicalId":74252,"journal":{"name":"Nature water","volume":"2 6","pages":"531-540"},"PeriodicalIF":0.0,"publicationDate":"2024-06-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141251841","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

Emergent responses shape the coupled carbon cycle in a changing Arctic 新出现的反应塑造了不断变化的北极地区的耦合碳循环

Nature water Pub Date : 2024-06-03 DOI: 10.1038/s44221-024-00250-5

Jan Karlsson

引用次数: 0

Five journeys from nanotechnology research to successful products in the water industry 水行业从纳米技术研究到成功产品的五个历程

Nature water Pub Date : 2024-05-23 DOI: 10.1038/s44221-024-00244-3

Adrian M. Brozell, Joris de Grooth, Eric M. V. Hoek

引用次数: 0

It’s time to get down to business 是时候办正事了

Nature water Pub Date : 2024-05-23 DOI: 10.1038/s44221-024-00256-z

引用次数: 0

Declining groundwater storage expected to amplify mountain streamflow reductions in a warmer world 在气候变暖的情况下，地下水储量的减少预计将加剧山区溪流的减少

Nature water Pub Date : 2024-05-23 DOI: 10.1038/s44221-024-00239-0

Rosemary W. H. Carroll, Richard G. Niswonger, Craig Ulrich, Charuleka Varadharajan, Erica R. Siirila-Woodburn, Kenneth H. Williams

{"title":"Declining groundwater storage expected to amplify mountain streamflow reductions in a warmer world","authors":"Rosemary W. H. Carroll, Richard G. Niswonger, Craig Ulrich, Charuleka Varadharajan, Erica R. Siirila-Woodburn, Kenneth H. Williams","doi":"10.1038/s44221-024-00239-0","DOIUrl":"10.1038/s44221-024-00239-0","url":null,"abstract":"Groundwater interactions with mountain streams are often simplified in model projections, potentially leading to inaccurate estimates of streamflow response to climate change. Here, using a high-resolution, integrated hydrological model extending 400 m into the subsurface, we find groundwater an important and stable source of historical streamflow in a mountainous watershed of the Colorado River. In a warmer climate, increased forest water use is predicted to reduce groundwater recharge resulting in groundwater storage loss. Losses are expected to be most severe during dry years and cannot recover to historical levels even during simulated wet periods. Groundwater depletion substantially reduces annual streamflow with intermittent conditions predicted when precipitation is low. Expanding results across the region suggests groundwater declines will be highest in the Colorado Headwater and Gunnison basins. Our research highlights the tight coupling of vegetation and groundwater dynamics and that excluding explicit groundwater response to warming may underestimate future reductions in mountain streamflow. This study employs a high-resolution, integrated hydrological model extending 400 m into the subsurface. Application of the model in a representative headwater basin in the Colorado River shows that groundwater storage loss will amplify streamflow losses in a warmer world.","PeriodicalId":74252,"journal":{"name":"Nature water","volume":"2 5","pages":"419-433"},"PeriodicalIF":0.0,"publicationDate":"2024-05-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.nature.com/articles/s44221-024-00239-0.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141091693","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

Mountain streamflow threatened by irreversible simulated groundwater declines 模拟地下水不可逆转的减少威胁山区溪流

Nature water Pub Date : 2024-05-23 DOI: 10.1038/s44221-024-00243-4

James M. Thornton

引用次数: 0

Integrating recent scientific advances to enhance non-sewered sanitation in urban areas 结合最新科学进步，加强城市地区的非污水处理卫生设施

Nature water Pub Date : 2024-05-16 DOI: 10.1038/s44221-024-00240-7

Linda Strande

{"title":"Integrating recent scientific advances to enhance non-sewered sanitation in urban areas","authors":"Linda Strande","doi":"10.1038/s44221-024-00240-7","DOIUrl":"10.1038/s44221-024-00240-7","url":null,"abstract":"Half of the world’s population is now served by non-sewered sanitation, yet the field remains fragmented, with a focus on individual research agendas, and prevalence of imprecise terminology that hinders scientific learnings and leads to misconceptions. The field is at a decisive juncture, with scientific knowledge taking off that holds the potential to fulfil the urgent need for inclusive sanitation in a rapidly urbanizing world. In this critical Review, relevant and diverse research results are assembled with findings translated to one consistent terminology, to provide scientific evidence to draw out interlinkages and learnings, debunk common misconceptions and identify key research needs. Properties of non-sewered wastewater are highly variable, and degradation during storage has a direct impact on greenhouse gas emissions and downstream treatment processes, which facilitate different resource recovery. New technologies and wastewater-based epidemiology can help to address the lack of monitoring. The findings are presented by wastewater properties, biological processes during storage, treatment processes and monitoring. Recent learnings in non-sewered sanitation remain fragmented; this Review integrates findings into one consistent terminology to identify synergies in scientific findings and explore future potential application of new technologies.","PeriodicalId":74252,"journal":{"name":"Nature water","volume":"2 5","pages":"405-418"},"PeriodicalIF":0.0,"publicationDate":"2024-05-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.nature.com/articles/s44221-024-00240-7.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140968013","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

Leveraging chemical energy for direct brine valorization 利用化学能直接实现盐水的价值化

Nature water Pub Date : 2024-05-14 DOI: 10.1038/s44221-024-00242-5

Akshay Deshmukh

引用次数: 0

Zinc–iodine redox reaction enables direct brine valorization with efficient high-water-recovery desalination 锌碘氧化还原反应实现了盐水的直接价值化和高效的高水回收率海水淡化

Nature water Pub Date : 2024-05-14 DOI: 10.1038/s44221-024-00238-1

Junbeom Lim, Minchan Kim, Rhokyun Kwak

{"title":"Zinc–iodine redox reaction enables direct brine valorization with efficient high-water-recovery desalination","authors":"Junbeom Lim, Minchan Kim, Rhokyun Kwak","doi":"10.1038/s44221-024-00238-1","DOIUrl":"10.1038/s44221-024-00238-1","url":null,"abstract":"Current desalination methods, with high energy/cost demands and large volumes of brine discharged to the environment, are not sustainable. Here we propose a sustainable electrodialysis that enables direct brine valorization with efficient high-water-recovery desalination via zinc–iodine redox reactions. In a single process comprising electrodialysis and two chemical reactions in brine streams, we achieve seawater desalination with a remarkable water recovery of 90.09% without compromising other metrics (salt-removal ratio <98.29%, electric energy consumption of <2.18 kWh m−3). Such performance advantage is attributable to (1) high solubility of zinc–iodine-based ‘water-in-salt’ electrolytes mitigating the osmotic pressure, achieving high water recovery even for high concentration feed water (98–82% for 0.1–1.5 M) with minimal energy burdens, (2) zinc–iodine redox potential lowering electric energy demand and (3) electroconvection in the overlimiting regime enhancing desalination speed. Also, profitable ZnCl2/NaI are electrosynthesized in brine, enabling direct valorization of desalination brines. An electrodialysis desalination process based on zinc–iodine redox reactions enables brine valorization with high efficiency of water recovery.","PeriodicalId":74252,"journal":{"name":"Nature water","volume":"2 5","pages":"475-484"},"PeriodicalIF":0.0,"publicationDate":"2024-05-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140929186","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