Nature water最新文献

The tortuous path towards net zero emissions in the wastewater sector 废水行业实现净零排放的曲折之路

Nature water Pub Date : 2024-10-18 DOI: 10.1038/s44221-024-00335-1

引用次数: 0

Sustainable wastewater management through nitrogen-cycling microorganisms 通过氮循环微生物实现可持续废水管理

Nature water Pub Date : 2024-10-14 DOI: 10.1038/s44221-024-00307-5

Tao Liu, Haoran Duan, Sebastian Lücker, Min Zheng, Holger Daims, Zhiguo Yuan, Jianhua Guo

{"title":"Sustainable wastewater management through nitrogen-cycling microorganisms","authors":"Tao Liu, Haoran Duan, Sebastian Lücker, Min Zheng, Holger Daims, Zhiguo Yuan, Jianhua Guo","doi":"10.1038/s44221-024-00307-5","DOIUrl":"10.1038/s44221-024-00307-5","url":null,"abstract":"Nitrogen-cycling microorganisms play essential roles in biological wastewater treatment, where nitrogen is removed with substantial energy and chemical consumption and greenhouse gas emissions. The discoveries of new nitrogen-cycling microorganisms paved the way for a remarkable paradigm shift from energy-negative and carbon-positive to energy-positive and carbon-neutral wastewater management. This Review reflects on the trajectory of these microbial discoveries and summarizes the technological progress enabled by them thus far. By bridging the gap between environmental microbiologists and water engineers, who are both interested in these new nitrogen-cycling microorganisms but with different focuses and expertise, this Review acknowledges the challenges encountered and illuminates the exciting future ahead. The continued close collaboration between scientists and engineers will keep redefining the landscape of wastewater management. This Review highlights how the discovery of new nitrogen-cycling microorganisms paves the way for process iterations and technological innovations towards sustainable wastewater management.","PeriodicalId":74252,"journal":{"name":"Nature water","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-10-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142451319","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

Defining and achieving net-zero emissions in the wastewater sector 定义和实现废水行业的净零排放

Nature water Pub Date : 2024-10-10 DOI: 10.1038/s44221-024-00318-2

Cuihong Song, Jun-Jie Zhu, Zhiguo Yuan, Mark C. M. van Loosdrecht, Zhiyong Jason Ren

{"title":"Defining and achieving net-zero emissions in the wastewater sector","authors":"Cuihong Song, Jun-Jie Zhu, Zhiguo Yuan, Mark C. M. van Loosdrecht, Zhiyong Jason Ren","doi":"10.1038/s44221-024-00318-2","DOIUrl":"10.1038/s44221-024-00318-2","url":null,"abstract":"Here we delve into the challenges and innovative strategies for achieving net-zero emissions in the wastewater sector, a notable source of global greenhouse gases. Unlike other infrastructure sectors, wastewater management involves complex and variably quantifiable emissions across all scopes, making standardization difficult. This study provides a global overview of the sector’s emissions profiles by leveraging literature mining, data analysis and case studies. It emphasizes the substantial variability in emissions, identifies key emission sources and locations, and advocates for tailored monitoring and mitigation strategies. It highlights the potential emissions shifting across scopes due to the adoption of new technologies and accounting practices, and it argues for a holistic analysis for optimization and integration to ensure a net benefit of the overall reductions in carbon footprints. This study underscores the urgency of rethinking current practices to align with ambitious mid-century net-zero targets, emphasizing the critical role of accurate emissions quantification and comprehensive decarbonization strategies. This Review offers a comprehensive global overview of greenhouse gas emissions in the wastewater sector, highlighting key gaps in emission quantification and mitigation. It explores current decarbonization strategies, emphasizes the complexity of emissions across all scopes, and advocates for tailored monitoring, holistic analysis and strong support from different stakeholders to drive effective mitigation and achieve net-zero emissions.","PeriodicalId":74252,"journal":{"name":"Nature water","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-10-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142451329","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

Photovoltaic electrodialysis makes brackish water treatment simpler 光伏电渗析使咸水处理更简单

Nature water Pub Date : 2024-10-08 DOI: 10.1038/s44221-024-00320-8

Xiang-Yu Kong, Liping Wen

引用次数: 0

Reinventing the electrochemical desalination platform 重塑电化学海水淡化平台

Nature water Pub Date : 2024-10-08 DOI: 10.1038/s44221-024-00321-7

Christopher G. Arges

引用次数: 0

Direct-drive photovoltaic electrodialysis via flow-commanded current control 通过流量指令电流控制直接驱动光伏电渗析技术

Nature water Pub Date : 2024-10-08 DOI: 10.1038/s44221-024-00314-6

Jonathan Tae-Yoon Bessette, Shane Richard Pratt, Amos G. Winter V

{"title":"Direct-drive photovoltaic electrodialysis via flow-commanded current control","authors":"Jonathan Tae-Yoon Bessette, Shane Richard Pratt, Amos G. Winter V","doi":"10.1038/s44221-024-00314-6","DOIUrl":"10.1038/s44221-024-00314-6","url":null,"abstract":"Renewable powered, brackish groundwater desalination is an underutilized resource in the developing world, where there are unreliable energy sources and reliance on increasingly saline groundwater. Traditional renewable desalination technologies require sizable energy storage for sufficient water production, leading to increased cost, maintenance and complexity. We theorize and demonstrate a simple control strategy—flow-commanded current control—using photovoltaic electrodialysis (PV-ED) to enable direct-drive (little to no energy storage), optimally controlled desalination at high production rates. This control scheme was implemented on a fully autonomous, community-scale (2–5 m3 d−1) PV-ED prototype system and operated for 6 months in New Mexico on real brackish groundwater. The prototype fully harnessed 94% of the extracted PV energy despite featuring an energy storage to water productivity ratio of over 99% less than the median PV desalination systems in literature. Flow-commanded current control PV-ED provides a simple strategy to desalinate water for resource-constrained communities and has implications for decarbonizing larger, energy-intensive desalination industries. Desalination of brackish water powered by renewable energy sources is a promising approach to obtain clean water in environmentally constrained communities, but high energy storage requirements hamper its development. Direct-drive photovoltaic electrodialysis is now shown to efficiently produce desalinated water while requiring minimal energy storage.","PeriodicalId":74252,"journal":{"name":"Nature water","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-10-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.nature.com/articles/s44221-024-00314-6.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142451331","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

Going from energy efficiency to climate neutrality on the way to decarbonizing the wastewater sector 从能源效率到气候中和，实现污水处理领域的去碳化

Nature water Pub Date : 2024-10-03 DOI: 10.1038/s44221-024-00322-6

Maria Salvetti

引用次数: 0

Brine concentration at ambient conditions using ion exchange 利用离子交换技术在环境条件下浓缩盐水

Nature water Pub Date : 2024-10-03 DOI: 10.1038/s44221-024-00319-1

Treavor H. Boyer

引用次数: 0

New approach to progress development of hybrid urban water systems 推进城市混合供水系统发展的新方法

Nature water Pub Date : 2024-10-03 DOI: 10.1038/s44221-024-00317-3

Jurg Keller

引用次数: 0

Accelerated low-temperature, low-fouling brine concentration through evaporative ion exchange mediated by the effect of functional groups 在官能团效应的介导下，通过蒸发离子交换加速低温低垢盐水浓缩

Nature water Pub Date : 2024-10-03 DOI: 10.1038/s44221-024-00305-7

Hao Chen, Arup K. SenGupta

{"title":"Accelerated low-temperature, low-fouling brine concentration through evaporative ion exchange mediated by the effect of functional groups","authors":"Hao Chen, Arup K. SenGupta","doi":"10.1038/s44221-024-00305-7","DOIUrl":"10.1038/s44221-024-00305-7","url":null,"abstract":"Achieving brine concentration by membrane distillation or the various humidification–dehumidification processes that are currently available always requires a thermal energy input and an elevated temperature. In this study, we developed a brine concentration process mediated by the unique osmotic and evaporation properties of high-capacity ion exchange resins. The evaporative ion exchange process consists of two steps. First, when a concentrated salt solution is brought into contact with a relatively dry, high-capacity polymeric ion exchanger, water selectively permeates into the ion exchanger phase through osmosis and the resin swells. In the second step, water evaporates when the swollen ion exchanger is brought into contact with air with low relative humidity and the resin shrinks. Here we show that, with hypersaline produced water from Marcellus gas shale, this evaporative ion exchange process attained total dissolved solids greater than 400,000 mg l−1, leading to the precipitation/crystallization of barium and sodium chloride at ambient temperature without causing any fouling of the ion exchange resins. The evaporative ion exchange process developed in this study achieves brine concentration at ambient temperature without fouling, providing a non-thermal brine concentration technology towards zero liquid discharge.","PeriodicalId":74252,"journal":{"name":"Nature water","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-10-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142451298","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