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Alkali-Activated Foams Coated with Colloidal Ag for Point-of-Use Water Disinfection

Bhuyan, Mohammad Amzad Hossain (author), Karkman, Antti (author), Prokkola, Hanna (author), Chen, B. (author), Perumal, Priyadharshini (author), Luukkonen, Tero (author)

Alkali-activated foams are ceramic-like materials prepared at near-ambient temperature. This study investigates them for point-of-use water disinfection, thus providing an alternative to ceramic filters fired at a high temperature. Alkali-activated foams with different compositions were characterized for the porosity, mechanical strength,...

journal article 2024

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Adsorption characteristics and mechanisms of water-soluble polymers (PVP and PEG) on kaolin and montmorillonite minerals

Wang, Xintu (author), Xu, Yanghui (author), Ou, Q. (author), Chen, Wenwen (author), van der Meer, W.G.J. (author), Liu, G. (author)

The excessive use and accumulation of water-soluble polymers (WSPs, known as “liquid plastics”) in the environment can pose potential risks to both ecosystems and human health, but the environmental fate of WSPs remains unclear. Here, the adsorption behavior of WSPs with different molecular weight on kaolinite (Kaol) and montmorillonite (Mt)...

journal article 2024

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The role of water-treated municipal solid waste incineration (MSWI) bottom ash in microstructure formation and strength development of blended cement pastes

Chen, B. (author), Ye, G. (author)

This research explored the microstructure formation and strength development of blended cement pastes prepared with municipal solid waste incineration (MSWI) bottom ash. A new sample preparation approach involving water treatment of MSWI bottom ash was developed to prevent sample cracking caused by the presence of metallic aluminum (Al) in...

journal article 2024

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Utilization of mswi bottom ash as a mineral resource for low-carbon construction materials: Quality-upgrade treatments, mix design method, and microstructure analysis

Chen, B. (author)

In recent years, considerable attention has been given to the utilization of municipal solid waste incineration (MSWI) bottom ash as a mineral resource for construction materials. MSWI bottom ash is the primary residue discharged after incinerating municipal solid waste. The generation of MSWI bottom ash is increasing dramatically with the wide...

doctoral thesis 2023

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A Mini Review of Ceramic-Based MOF Membranes for Water Treatment

Wang, Xueling (author), Wang, Man (author), Chen, M. (author), Zhang, Yatao (author)

Ceramic membranes have been increasingly employed in water treatment owing to their merits such as high-stability, anti-oxidation, long lifespan and environmental friendliness. The application of ceramic membranes mainly focuses on microfiltration and ultrafiltration processes, and some precise separation can be achieved by introducing novel...

journal article 2023

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Degradation of alkali-activated slag subjected to water immersion

Liu, C. (author), Liang, X. (author), Chen, Y. (author), Li, Z. (author), Ye, G. (author)

In this study, the impacts of tap water immersion on the pore solution, phase assemblages, gel chemistry and structure, and pore structure of alkali-activated slag (AAS) pastes were studied. AAS degrades under such condition and the potential mechanisms can be concluded as lower reaction rates, gel decomposition and carbonation. The leaching...

journal article 2023

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Experimental and numerical study on the mitigation of autogenous shrinkage of cementitious material

Lu, T. (author), Liang, X. (author), Liu, C. (author), Chen, Y. (author), Li, Z. (author)

This study experimentally investigated the effects of surfactants and water-repelling agents on the hydration process, relative humidity, and mechanical properties of Portland cement pastes. Based on the measurement results, the degree of hydration, degree of saturation, capillary tension of autogenous shrinkage, and magnitude of autogenous...

journal article 2023

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Balancing water rights in metropolitan water conservation areas: The case of Chengdu, China

Chen, Gao (author), Bracken, G. (author), Herdt, T. (author)

Water justice can be a delicate balancing act. Conservation regulations ensure urban areas’ water demands are met, but these may conflict with the water rights of local people living in catchment areas. No metropolis wants to face water shortages, yet prioritising municipalities’ rights over those of local people can result in water injustice....

journal article 2023

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Unveiling the inequalities in virtual water transfer in China: The environmental and economic perspectives

Wei, Ziyi (author), Huang, Kai (author), Chen, Ying (author), Wang, D. (author), Yu, Yajuan (author), Xu, Ming (author), Kapelan, Z. (author)

To alleviate the geographical mismatch between supply and demand of water resources, virtual water trade had attracted extensive attention. Many studies had estimated the virtual water flow and measured the virtual water inequality using Environmental Input-Output (EIO) model. However, EIO model ignores the feedback effect in the trade, which...

journal article 2023

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Fresh properties of limestone-calcined clay-slag cement pastes

Chen, Y. (author), Zhang, Y. (author), Šavija, B. (author), Copuroglu, Oguzhan (author)

Formulation of quaternary blended system containing ordinary Portland cement or clinker, slag, limestone and calcined clay (LC2) appeared to be a viable approach to developing low-clinker cements without severely sacrificing mechanical performance at later ages. This paper investigates the effect of two material parameters, i.e., LC2-to-slag...

journal article 2023

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Evaluation of the Physicochemical Properties and Antiaging Properties of Bitumen Mastic Modified by Layered Double Hydroxides

Zou, Yingxue (author), Pang, Ling (author), Chen, Shuaichao (author), Xu, S. (author), Wu, Shaopeng (author), Amirkhanian, Serji (author), Xu, Haiqin (author), Zhao, Zenggang (author)

Layered double hydroxides (LDHs) can shield polymeric materials from UV light, which allows reducing material aging and erosion damage of bituminous pavement under physical and chemical action. In this study, the physicochemical properties, aging resistance, and erosion resistance to the aqueous solution of LDHs modified bitumen mastic (BM) were...

journal article 2023

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Oil-in-water emulsion separation: Fouling of alumina membranes with and without a silicon carbide deposition in constant flux filtration mode

Chen, M. (author), Heijman, Sebastiaan (author), Luiten-Olieman, Mieke W.J. (author), Rietveld, L.C. (author)

Ceramic membranes have drawn increasing attention in oily wastewater treatment as an alternative to their traditional polymeric counterparts, yet persistent membrane fouling is still one of the largest challenges. Particularly, little is known about ceramic membrane fouling by oil-in-water (O/W) emulsions in constant flux filtration modes. In...

journal article 2022

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Integrated CO₂capture and selective conversion to syngas using transition-metal-free Na/Al₂O₃dual-function material

Sasayama, Tomone (author), Kosaka, Fumihiko (author), Liu, Yanyong (author), Yamaguchi, Toshiaki (author), Chen, Shih Yuan (author), Mochizuki, Takehisa (author), Urakawa, A. (author), Kuramoto, Koji (author)

Integrated CO2 capture and conversion (ICCC) using dual-function materials (DFMs) is one of the key technologies for addressing critical global environmental and energy issues. DFMs generally consist of alkali or alkaline earth metals for CO2 capture and transition metal catalysts for CO2 conversion. In this study, we studied the ICCC to CO...

journal article 2022

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Capturing and tracing the spatiotemporal variations of planktonic and particle-associated bacteria in an unchlorinated drinking water distribution system

Chen, L. (author), Li, Xuan (author), van der Meer, Walter (author), Medema, G.J. (author), Liu, G. (author)

The aperiodic changes in the quantity and community of planktonic and particle-associated bacteria have hampered the understanding and management of microbiological water quality in drinking water distribution systems. In this study, online sampling was combined with the microbial fingerprint-based SourceTracker2 to capture and trace the...

journal article 2022

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Revisiting China’s Sponge City Planning Approach: Lessons From a Case Study on Qinhuai District, Nanjing

Chen, Shiyang (author), van de Ven, F.H.M. (author), Zevenbergen, C. (author), Verbeeck, Simon (author), Ye, Qinghua (author), Zhang, Weijun (author), Wei, Liang (author)

Integrating sustainable urban water management into the urban planning process is essential for developing water-resilient cities. To this end, the central government of the People’s Republic of China initiated the “Sponge City” programme. However, challenges and gaps exist in current urban planning practice. The operationalizable planning...

journal article 2021

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Super Tough and Spontaneous Water-Assisted Autonomous Self-Healing Elastomer for Underwater Wearable Electronics

He, Cyuan Lun (author), Liang, Fang Cheng (author), Veeramuthu, Loganathan (author), Cho, Chia Jung (author), Benas, Jean Sebastien (author), Tzeng, Yung Ru (author), Tseng, Yen Lin (author), Chen, Wei Cheng (author), Rwei, A.Y. (author), Kuo, Chi Ching (author)

Self-healing soft electronic material composition is crucial to sustain the device long-term durability. The fabrication of self-healing soft electronics exposed to high moisture environment is a significant challenge that has yet to be fully achieved. This paper presents the novel concept of a water-assisted room-temperature autonomous self...

journal article 2021

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Moisture source variations for summer rainfall in different intensity classes over Huaihe River Valley, China

Liu, Yubo (author), Zhang, Chi (author), Tang, Qiuhong (author), Hosseini-Moghari, Seyed Mohammad (author), Haile, Gebremedhin Gebremeskel (author), Li, Laifang (author), Li, Wenhong (author), Yang, Kun (author), van der Ent, R.J. (author), Chen, Deliang (author)

Rainfall is one of the most influential climatic factors on regional development and environment, and changes in rainfall intensity are of specific concern. In the Huaihe River Valley (HRV), heavy rainfall is a primary trigger of floods. However, the difference in the origin of moisture contributed to heavy rainfall and light rainfall is...

journal article 2021

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Improving the Resilience of Postdisaster Water Distribution Systems Using Dynamic Optimization Framework

Zhang, Qingzhou (author), Zheng, Feifei (author), Chen, Qiuwen (author), Kapelan, Z. (author), Diao, Kegong (author), Zhang, Kejia (author), Huang, Yuan (author)

Improving the resilience of water distribution systems (WDSs) to handle natural disasters (e.g., earthquakes) is a critical step toward sustainable urban water management. This requires the water utility to be able to respond quickly to such disaster events, and in an organized manner, to prioritize the use of available resources to restore...

journal article 2020

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Highly permeable silicon carbide-alumina ultrafiltration membranes for oil-in-water filtration produced with low-pressure chemical vapor deposition

Chen, M. (author), Shang, Ran (author), Sberna, P.M. (author), Luiten-Olieman, Mieke W.J. (author), Rietveld, L.C. (author), Heijman, Sebastiaan (author)

Silicon carbide (SiC) ceramic membranes are of particular significance for wastewater treatment due to their mechanical strength, chemical stability, and antifouling ability. Currently, the membranes are prepared by SiC-particle sintering at a high temperature. The production suffers from long production time and high costs. In this paper, we...

journal article 2020

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Assessing the transition effects in a drinking water distribution system caused by changing supply water quality: an indirect approach by characterizing suspended solids

Chen, L. (author), Ling, Fangqiong (author), Bakker, Geo (author), Liu, Wen Tso (author), Medema, G.J. (author), van der Meer, W.G.J. (author), Liu, G. (author)

Worldwide, it is common that the drinking water distribution systems (DWDSs) may be subjected to changes of supply water quality due to the needs of upgrading the treatment processes or switching the source water. However, the potential impacts of quality changed supply water on the stabilized ecological niches within DWDSs and the associated...

journal article 2020