Liu, J. & Li, D. Timing the first emergence and disappearance of global water scarcity. Nat. Commun. 15, 7129 (2024).

Article 
CAS 
PubMed 
PubMed Central 

Google Scholar
 

Ma, T. et al. Pollution exacerbates China’s water scarcity and its regional inequality. Nat. Commun. 11, 650 (2020).

Article 
CAS 
PubMed 
PubMed Central 

Google Scholar
 

Doeffinger, T. & Hall, J. W. Water stress and productivity: an empirical analysis of trends and drivers. Water Resour. Res. 56, e2019WR025925 (2020).

Article 

Google Scholar
 

Qi, H., Zeng, S., Shi, L. & Dong, X. What the reclaimed water use can change: from a perspective of inter-provincial virtual water network. J. Environ. Manage. 287, 112350 (2021).

Article 
PubMed 

Google Scholar
 

Larsen, T. A., Hoffmann, S., Lüthi, C., Truffer, B. & Maurer, M. Emerging solutions to the water challenges of an urbanizing world. Science 352, 928–933 (2016).

Article 
CAS 
PubMed 

Google Scholar
 

Wang, X. et al. Evolving wastewater infrastructure paradigm to enhance harmony with nature. Sci. Adv. 4, eaaq0210 (2018).

Article 
CAS 
PubMed 
PubMed Central 

Google Scholar
 

Qu, J. et al. Emerging trends and prospects for municipal wastewater management in China. ACS ES T Eng. 2, 323–336 (2022).

Article 
CAS 

Google Scholar
 

Liao, Z. et al. Wastewater treatment and reuse situations and influential factors in major Asian countries. J. Environ. Manage. 282, 111976 (2021).

Article 
PubMed 

Google Scholar
 

Tong, Y. et al. Improvement in municipal wastewater treatment alters lake nitrogen to phosphorus ratios in populated regions. Proc. Natl Acad. Sci. USA 117, 11566–11572 (2020).

Article 
CAS 
PubMed 
PubMed Central 

Google Scholar
 

Cai, X. et al. China’s municipal wastewater policies enhanced seafood safety and offset health risks from atmospheric mercury emissions in the past four decades. Nat. Food 6, 182–195 (2025).

Article 
PubMed 

Google Scholar
 

Baccour, S. et al. Water quality management could halve future water scarcity cost-effectively in the Pearl River Basin. Nat. Commun. 15, 5669 (2024).

Article 
CAS 
PubMed 
PubMed Central 

Google Scholar
 

Christou, A. et al. Sustainable wastewater reuse for agriculture. Nat. Rev. Earth Environ. 5, 504–521 (2024).

Article 
CAS 

Google Scholar
 

Schwabe, K., Nemati, M., Amin, R., Tran, Q. & Jassby, D. Unintended consequences of water conservation on the use of treated municipal wastewater. Nat. Sustain. 3, 628–635 (2020).

Article 

Google Scholar
 

Chen, S. et al. Decoupling wastewater-related greenhouse gas emissions and water stress alleviation across 300 cities in China is challenging yet plausible by 2030. Nat. Water 1, 534–546 (2023).

Article 
CAS 

Google Scholar
 

Capodaglio, A. G. Energy use and decarbonisation of the water sector: a comprehensive review of issues, approaches, and technological options. Environ. Technol. Rev. 14, 40–68 (2025).

Article 

Google Scholar
 

Capodaglio, A. G. Fit-for-purpose urban wastewater reuse: analysis of issues and available technologies for sustainable multiple barrier approaches. Crit. Rev. Environ. Sci. Technol. 51, 1618–1666 (2021).

Article 

Google Scholar
 

Yu, Q., Li, S. & Chen, N. Urbanization and greenhouse gas emissions from municipal wastewater in coastal provinces of China: spatiotemporal patterns, driving factors, and mitigation strategies. Environ. Res. 259, 119398 (2024).

Article 
CAS 
PubMed 

Google Scholar
 

Li, W. W. & Yu, H. Q. Recasting China’s urban wastewater management standards. Nat. Sustain. 8, 6–8 (2025).

Article 

Google Scholar
 

Xu, Z. et al. Urban river pollution control in developing countries. Nat. Sustain. 2, 158–160 (2019).

Article 

Google Scholar
 

Strokal, M. et al. Urbanization: an increasing source of multiple pollutants to rivers in the 21st century. npj Urban Sustain. 1, 24 (2021).

Article 

Google Scholar
 

Mao, G., Hu, H., Liu, X., Crittenden, J. & Huang, N. A bibliometric analysis of industrial wastewater treatments from 1998 to 2019. Environ. Pollut. 275, First Page*Last PageBibarticle numberDOIDate*2021CommentCopied TextXMao, G., Hu, H., Liu, X., Crittenden, J. & Huang, N. A bibliometric analysis of industrial wastewater treatments from 1998 to 2019. Environ. Pollut. 275, 115785 (2021).

Article 

Google Scholar
 

Villarín, M. C. & Merel, S. Paradigm shifts and current challenges in wastewater management. J. Hazard. Mater. 390, 122139 (2020).

Article 
PubMed 

Google Scholar
 

Lou, J. C. & Lin, Y. C. Assessing the feasibility of wastewater recycling and treatment efficiency of wastewater treatment units. Environ. Monit. Assess. 137, 471–479 (2008).

Article 
CAS 
PubMed 

Google Scholar
 

Sun, H. et al. Residential pollutant discharge and spatial transfer of hotspot pollutants induced by population migration in China. Commun. Earth Environ. 6, 920 (2025).

Article 

Google Scholar
 

Eggimann, S., Truffer, B. & Maurer, M. To connect or not to connect? Modelling the optimal degree of centralisation for wastewater infrastructures. Water Res. 84, 218–231 (2015).

Article 
CAS 
PubMed 

Google Scholar
 

Zhang, C. et al. China’s wastewater treatment: Status quo and sustainability perspectives. J. Water Process Eng. 53, 103708 (2023).

Article 

Google Scholar
 

Hernández-Sancho, F. & Sala-Garrido, R. Technical efficiency and cost analysis in wastewater treatment processes: a DEA approach. Desalination 249, 230–234 (2009).

Article 

Google Scholar
 

Hernández-Chover, V., Bellver-Domingo, Á. & Hernández-Sancho, F. Efficiency of wastewater treatment facilities: the influence of scale economies. J. Environ. Manage. 228, 77–84 (2018).

Article 
PubMed 

Google Scholar
 

Huang, D. et al. Current state and future perspectives of sewer networks in urban China. Front. Environ. Sci. Eng. 12, 2 (2018).

Article 

Google Scholar
 

Hernandez-Sancho, F., Molinos-Senante, M. & Sala-Garrido, R. Cost modelling for wastewater treatment processes. Desalination 268, 1–5 (2011).

Article 
CAS 

Google Scholar
 

Zhang, T., Guna, A., Yu, W. & Shen, D. The recycled water use policy in China: evidence from 114 cities. J. Clean. Prod. 344, 131038 (2022).

Article 

Google Scholar
 

Liu, L., Zhou, X., Dueñas-Osorio, L., Stadler, L. & Li, Q. Hybrid wastewater treatment and reuse enhances urban water system resilience to disruptive incidents. Nat. Water 1, 1048–1058 (2023).

Article 
CAS 

Google Scholar
 

Garrido-Baserba, M. et al. Using water and wastewater decentralization to enhance the resilience and sustainability of cities. Nat. Water 2, 953–974 (2024).

Article 

Google Scholar
 

Faust, K. M., Abraham, D. M. & McElmurry, S. P. Water and wastewater infrastructure management in shrinking cities. Public Works Manag. Policy 21, 128–156 (2016).

Article 

Google Scholar
 

Xu, J. & Xu, Z. China sewage treatment engineering issues assessment. J. Clean. Prod. 377, 134391 (2022).

Article 
CAS 

Google Scholar
 

Garrido-Baserba, M. et al. The third route: a techno-economic evaluation of extreme water and wastewater decentralization. Water Res. 218, 118408 (2022).

Article 
CAS 
PubMed 

Google Scholar
 

Molinos-Senante, M., Poch, M., Rosso, D. & Garrido-Baserba, M. From wastewater treatment plants to decentralized resource factories. npj Clean Water 7, 46 (2024).

Article 
CAS 

Google Scholar
 

Zhang, Q. H. et al. Current status of urban wastewater treatment plants in China. Environ. Int. 92–93, 11–22 (2016).

Article 
PubMed 

Google Scholar
 

Deng, O. et al. Managing urban development could halve nitrogen pollution in China. Nat. Commun. 15, 401 (2024).

Article 
CAS 
PubMed 
PubMed Central 

Google Scholar
 

The 14th Five-Year Plan. State Council of the People’s Republic of China https://www.gov.cn/xinwen/2021-03/13/content_5592681.htm (2021).

Implementation plan for the construction of beautiful villages. Ministry of Ecology and Environment of the People’s Republic of China https://hunan.gov.cn/zqt/zcsd/202502/t20250205_33579719.html (2025).

Zhong, L. & Mol, A. P. J. Water price reforms in China: policy-making and implementation. Water Resour. Manage. 24, 377–396 (2010).

Article 

Google Scholar
 

Wang, H., Xie, J. & Li, H. Domestic water pricing with household surveys: a study of acceptability and willingness to pay in Chongqing, China. World Bank Policy Res. Working Paper No. 4690 (2008).

Yeo, J. et al. An integrated techno-economic analysis on wastewater reclamation in Hong Kong: a comprehensive cost-benefit analysis with life cycle assessment. J. Clean. Prod. 357, 131838 (2022).

Article 

Google Scholar
 

Hernández-Chover, V., Bellver-Domingo, Á., Castellet-Viciano, L. & Hernández-Sancho, F. Economies of scale and efficiency in the wastewater treatment sector: a decision tree approach. Appl. Sci. 15, 3423 (2025).

Article 

Google Scholar
 

Fraquelli, G. & Giandrone, R. Reforming the wastewater treatment sector in Italy: implications of plant size, structure, and scale economies. Water Resour. Res. 39, 1293 (2003).

Article 

Google Scholar
 

Van Loosdrecht, M. C. M. & Brdjanovic, D. Anticipating the next century of wastewater treatment. Science 344, 1452–1453 (2014).

Article 
PubMed 

Google Scholar
 

Angelakis, A. N., Asano, T., Bahri, A., Jimenez, B. E. & Tchobanoglous, G. Water reuse: from ancient to modern times and the future. Front. Environ. Sci. 6, 26 (2018).

Article 

Google Scholar
 

Soo, A., Kim, J. & Shon, H. K. Technologies for the wastewater circular economy—a review. Desalin. Water Treat. 317, 100205 (2024).

Article 

Google Scholar
 

Hurlimann, A. & Dolnicar, S. Public acceptance and perceptions of alternative water sources: a comparative study in nine locations. Int. J. Water Resour. Dev. 32, 650–673 (2016).

Article 

Google Scholar
 

Hernández-Chover, V., Castellet-Viciano, L., Fuentes, R. & Hernández-Sancho, F. Circular economy and efficiency to ensure the sustainability in the wastewater treatment plants. J. Clean. Prod. 384, 135563 (2023).

Article 

Google Scholar
 

Tong, S. et al. A diagnostic framework to reveal future clean water scarcity in a changing climate. J. Hydrol. Reg. Stud. 56, 102040 (2024).


Google Scholar
 

Jing, C. et al. Population, urbanization and economic scenarios over the Belt and Road region under the Shared Socioeconomic Pathways. J. Geogr. Sci. 30, 68–84 (2020).

Article 

Google Scholar
 

Zhou, F. et al. Deceleration of China’s human water use and its key drivers. Proc. Natl Acad. Sci. USA 117, 7702–7711 (2020).

Article 
CAS 
PubMed 
PubMed Central 

Google Scholar
 

Du, T., Kang, S., Zhang, J. & Davies, W. J. Deficit irrigation and sustainable water-resource strategies in agriculture for China’s food security. J. Exp. Bot. 66, 2253–2269 (2015).

Article 
CAS 
PubMed 
PubMed Central 

Google Scholar
 

Alizadeh, S., Zafari-koloukhi, H., Rostami, F., Rouhbakhsh, M. & Avami, A. The eco-efficiency assessment of wastewater treatment plants in the city of Mashhad using emergy and life cycle analyses. J. Clean. Prod. 249, 119327 (2020).

Article 

Google Scholar
 

Niazi, M. et al. Storm water management model: performance review and gap analysis. J. Sustain. Water Built Environ. 3, 04017002 (2017).

Article 

Google Scholar
 

Anbari, M. J., Tabesh, M. & Roozbahani, A. Risk assessment model to prioritize sewer pipes inspection in wastewater collection networks. J. Environ. Manage. 190, 91–101 (2017).

Article 
PubMed 

Google Scholar
 

Mayor, Á. et al. Life-cycle assessment and techno-economic evaluation of the value chain in nutrient recovery from wastewater treatment plants for agricultural application. Sci. Total Environ. 892, 164452 (2023).

Article 
CAS 
PubMed 

Google Scholar
 

Lorenzo-Toja, Y. et al. Eco-efficiency analysis of Spanish WWTPs using the LCA+DEA method. Water Res. 68, 651–666 (2015).

Article 
CAS 
PubMed 

Google Scholar
 

Torre, A., Vázquez-Rowe, I., Parodi, E. & Kahhat, R. Wastewater treatment decentralization: is this the right direction for megacities in the Global South? Sci. Total Environ. 778, 146227 (2021).

Article 
CAS 
PubMed 

Google Scholar
 

National Bureau of Statistics. China Population Census Data by County-2020. https://www.stats.gov.cn/zs/tjwh/tjkw/tjzl/202302/t20230220_1913738.html (2022).

National list of centralized wastewater treatment facilities. Ministry of Ecology and Environment of the People’s Republic of China http://www.mee.gov.cn/xxgk2018/xxgk/xxgk01/202004/t20200410_773911.html (2020).

China Urban Water Supply and Drainage Association. Urban Water Drainage Statistical Yearbook 2018 (China Urban Water Supply and Drainage Association Press, 2018).

Ministry of Housing and Urban-Rural Development. China Urban-Rural Construction Statistical Yearbook (China Planning Press, 2020).

Ministry of Housing and Urban-Rural Development. China Urban Construction Statistical Yearbook 2003 (China Planning Press, 2003).

Ministry of Housing and Urban-Rural Development. China County Construction Statistical Yearbook (China Planning Press, 2020).

Deng, C., Zhang, G., Li, Z. & Li, K. Interprovincial food trade and water resources conservation in China. Sci. Total Environ. 737, 139651 (2020).

Article 
CAS 
PubMed 

Google Scholar
 

Gou, J. et al. Sensitivity analysis-based automatic parameter calibration of the VIC model for streamflow simulations over China. Water Resour. Res. 56, e2019WR025968 (2020).

Article 

Google Scholar
 

Gou, J. et al. CNRD v1.0 a high-quality natural runoff dataset for hydrological and climate studies in China. Bull. Am. Meteorol. Soc. 102, E929–E947 (2021).

Article 

Google Scholar
 

Miao, C. et al. High-quality reconstruction of China’s natural streamflow. Sci. Bull. 67, 547–556 (2022).

Article 

Google Scholar
 

Huang, J. et al. Effect of fertility policy changes on the population structure and economy of China: from the perspective of the shared socioeconomic pathways. Earths Future 7, 250–265 (2019).

Article 

Google Scholar
 

Van Vliet, M. T. H., Florke, M. & Wada, Y. Quality matters for water scarcity. Nat. Geosci. 10, 800–802 (2017).

Article 

Google Scholar
 

Land Administration Law of the People’s Republic of China. Standing Committee of the National People’s Congress https://www.mee.gov.cn/ywgz/fgbz/fl/201904/t20190428_701293.shtml (2019).

Regulations on urban drainage and sewage treatment. State Council of the People’s Republic of China https://www.mee.gov.cn/ywgz/fgbz/xzfg/201811/t20181129_676340.shtml (2013).

Jiang, S. Scientific Concept of Water–Energy Nexus and Coupling Simulation. PhD thesis, China Institute of Water Resources and Hydropower Research (2017).

Shen, T. An Analysis of Energy Consumption and Influencing Factors in the Process of Urban Household Water Use. Master’s thesis, Chinese Academy of Sciences (2014).

Nair, S., George, B., Malano, H. M., Arora, M. & Nawarathna, B. Water-energy-greenhouse gas nexus of urban water systems: review of concepts, state-of-art and methods. Resour. Conserv. Recycl. 89, 1–10 (2014).

Article 

Google Scholar
 

Jin, L., Zhang, G. & Tian, H. Current state of sewage treatment in China. Water Res. 66, 85–98 (2014).

Article 
CAS 
PubMed 

Google Scholar
 

Technical specification for operation, maintenance and safety of municipal wastewater treatment plant. Ministry of Housing and Urban-Rural Development of China http://www.liaocheng.gov.cn/site_lcsswjt/channel_lc_liaochengliaochenglcscsswjtyxgsabcosdqrhyfg7019/doc_6449c91d86c922f698a3d864.html (2011).

Interim measures for the assessment of urban wastewater treatment work. Ministry of Housing and Urban-Rural Development of China https://zjt.hubei.gov.cn/bmdt/ztzl/wszl/zwcj/201910/W020191028668191908788.pdf (2017).

Guideline on project construction and investment for rural sewage treatment. Ministry of Environmental Protection of China https://epb.hangzhou.gov.cn/art/2013/11/29/art_1228974305_38354510.html (2013).

Technical specification for construction of rural domestic sewage treatment facilities. Anhui Provincial Market Supervision Administration https://std.samr.gov.cn/db/search/stdDBDetailed?id=ED03F8EA5BD8E2AFE05397BE0A0AED84 (2022).

Technical guideline for construction of rural domestic wastewater treatment facilities. China Association of Environmental Protection Industry https://gdee.gd.gov.cn/attachment/0/534/534474/4277542.pdf (2022).

Technical specification for resource utilization of rural domestic wastewater. Heilongjiang Provincial Market Supervision Administration https://std.samr.gov.cn/db/search/stdDBDetailed?id=0201987C77E9494EE06397BE0A0ABE85 (2023).

Technical guideline for domestic wastewater treatment in agricultural and pastoral areas. Qinghai Provincial Bureau of Quality and Technical Supervision https://std.samr.gov.cn/db/search/stdDBDetailed?id=91D99E4D16CA2E24E05397BE0A0A3A10 (2015).

Technical guideline on rural sewage treatment. Shanxi Provincial Market Supervision Administration https://sthjt.shanxi.gov.cn/zfxxgk/zdgkjbml/ (2020).

Technical specification for rural domestic sewage treatment in Taihu Basin. Jiangsu Provincial Market Supervision Administration https://sthjt.jiangsu.gov.cn/col/col83843/index.html (2024).

Technical standard of domestic wastewater treatment for rural area. Xinjiang Uygur Autonomous Region Market Supervision Administration https://sthjt.xinjiang.gov.cn/xjepd/trstnchj/202108/a0b43c37fc194ab083c84e9c098a3110.shtml (2021).

Corominas, L. et al. Life cycle assessment applied to wastewater treatment: state of the art. Water Res. 47, 5480–5492 (2013).

Article 
CAS 
PubMed 

Google Scholar
 

Shen, J. Reproducible code for “China’s centralized wastewater treatment system reaches efficiency limits in tackling water scarcity”. Zenodo https://doi.org/10.5281/zenodo.22138940 (2026).