Renewable hydrogen production steps up wastewater treatment under low-carbon electricity sources – A call forth approach DOI Creative Commons

Pitchaiah Sudalaimuthu,

Ravishankar Sathyamurthy, Usman Ali

et al.

Desalination and Water Treatment, Journal Year: 2024, Volume and Issue: 320, P. 100748 - 100748

Published: Sept. 3, 2024

Switching to renewable resources for hydrogen production is essential. Present such as coal, oil, and natural gas are depleted rapidly moving a dead state, they possess high carbon footprint. Wastewater promising avenue in searching resource. Profuse techniques preferred production. Among them, electrolysis great with wastewater against biological processes by purity. obstacles behind the process conversion efficiency, intensive energy, cost. This review starts demand, availability, their H2 potential, then illustrates three main types of electrolysis. The section highlights energy-assisted because its low footprint zero emission potential various water High-temperature steam solid oxide viable option future scaling due versatile adoption photo, electric, thermal energy. A glance at some effective aspirations large-scale economics co-generation, biomass utilization, Microbial electrolysis, waste low-cost green electrode, Carbon dioxide hydrogenation, minerals recovery. study gives broader view facing challenges via perspectives eliminate above. along cost forward production, addition preserving environment from fossil fuel. Geographical seasonal availability constraints unavoidable; therefore, energy storage coupling power sources essential attain consistent supply. lack regulations policies supporting development these technologies did not reduce gap between research implementation. Life cycle assessment this rarely available, so we need focus on effect environment.

Language: Английский

Impact of hydrate spatial heterogeneity on gas permeability in hydrate-bearing sediments DOI
Yanghui Li,

Zhaosheng Wei,

Haijun Wang

et al.

Energy, Journal Year: 2024, Volume and Issue: 293, P. 130717 - 130717

Published: Feb. 16, 2024

Language: Английский

Citations

22

Strength and creep characteristics of methane hydrate-bearing clayey silts of the South China Sea DOI
Lei Wang,

Shi Shen,

Z. Wu

et al.

Energy, Journal Year: 2024, Volume and Issue: 294, P. 130789 - 130789

Published: March 4, 2024

Language: Английский

Citations

20

Experimental Study on Permeability and Gas Production Characteristics of Montmorillonite Hydrate Sediments Considering the Effective Stress and Gas Slippage Effect DOI
Z. Wu, Qingkai Gu, Lei Wang

et al.

SPE Journal, Journal Year: 2024, Volume and Issue: 29(05), P. 2525 - 2544

Published: Jan. 9, 2024

Summary Gas permeability in hydrate reservoirs is the decisive parameter determining gas production efficiency and of hydrate. In South China Sea (SCS), flow tight natural (NGH) silty clay significantly affected by slippage effect effective stress (ES) overlying rock. To improve effectiveness exploitation, it necessary to understand influence on evolution law. For this paper, characteristics methane montmorillonite sediments were studied at different pore pressures ESs. Experimental data revealed that samples before (MH) formation seriously Klinkenberg effect. The generally smaller than after formation, weaker formation. With change ES, intrinsic sediment has a power law relationship with simple ES. ES coefficient n was determined using response surface method eliminate slip permeability. As pressure decreases MH decomposes, swelling affects However, good compensation decomposition under low pressure. multistage depressurization-producing process mainly 3 MPa stage 2 stage. mechanism reservoir studied, which conducive improving prediction accuracy content exploitation exploring best reduction increase exploitation.

Language: Английский

Citations

17

Recent Advances in Nanoscale Zero-Valent Iron (nZVI)-Based Advanced Oxidation Processes (AOPs): Applications, Mechanisms, and Future Prospects DOI Creative Commons
Mingyue Liu,

Yuyuan Ye,

Linli Xu

et al.

Nanomaterials, Journal Year: 2023, Volume and Issue: 13(21), P. 2830 - 2830

Published: Oct. 25, 2023

The fast rise of organic pollution has posed severe health risks to human beings and toxic issues ecosystems. Proper disposal toward these contaminants is significant maintain a green sustainable development. Among various techniques for environmental remediation, advanced oxidation processes (AOPs) can non-selectively oxidize mineralize into CO2, H2O, inorganic salts using free radicals that are generated from the activation oxidants, such as persulfate, H2O2, O2, peracetic acid, periodate, percarbonate, etc., while oxidants catalysts via Fenton-type reactions crucial production reactive oxygen species (ROS), i.e., •OH, •SO4-, •O2-, •O3CCH3, •O2CCH3, •IO3, •CO3-, 1O2. Nanoscale zero-valent iron (nZVI), with core Fe0 performs sustained effect in AOPs by gradually releasing ferrous ions, been demonstrated cost-effective, high reactivity, easy recovery, recycling, environmentally friendly heterogeneous catalyst AOPs. combination nZVI AOPs, providing an appropriate way complete degradation pollutants indiscriminate ROS, emerging important technique remediation received considerable attention last decade. following review comprises short survey most recent reports applications participating their mechanisms, future prospects. It contains six sections, introduction theme, hydrogen peroxide, oxygen, other oxidants-based catalyzed nZVI, conclusions about reported research perspectives developments. Elucidation mechanisms nZVI-based may not only pave more affordable AOP protocols, but also promote exploration fabrication effective materials applicable practical applications.

Language: Английский

Citations

28

A comprehensive review of hydrogen purification using a hydrate-based method DOI
Pengfei Wang, Y. Chen, Ying Teng

et al.

Renewable and Sustainable Energy Reviews, Journal Year: 2024, Volume and Issue: 194, P. 114303 - 114303

Published: Feb. 3, 2024

Language: Английский

Citations

15

Parametric analysis of pollutant discharge concentration in non-Newtonian nanofluid flow across a permeable Riga sheet with thermal radiation DOI Creative Commons
Xiao Xin,

Abdul Hamid Ganie,

Maher Alwuthaynani

et al.

AIP Advances, Journal Year: 2024, Volume and Issue: 14(4)

Published: April 1, 2024

Proper wastewater disposal is crucial in various manufacturing and ecological systems. This study aims to prevent regulate pollution the water supply. It examines how pollutant discharge concentration affects flow of non-Newtonian nanofluids (NNNFs) over a porous Riga surface. Two different types NNNFs, namely, Walter’s B second-grade fluids, have been examined. The fluid conveyed form system partial differential equations (PDEs), which are first reduced non-dimensional set ordinary (ODEs) then first-order equations. numerical approach parametric continuation method employed solve these ODEs. has noticed that energy curve declines with increasing numbers TiO2-nanoparticles (NPs). effect external source variation factor enriches pollutants both cases. Furthermore, viscoelastic parameter K1 plays notable role determining behavior fluids. Particularly enhances flow, whereas rise decreases velocity fluid. Our findings indicate substantial impact parameters under consideration on discharge. Significantly, it was observed an increase amount NPs thermal radiation led improvement conductivity nanofluid, consequently decreasing nanofluid greater efficiency boosting transfer rate base In case fluid, propagation increases up 6.25%, whereas, B, 7.85%.

Language: Английский

Citations

12

Effect of Glucose on CH4 Hydrate Formation in Clay Nanopores and Bulk Solution: Insights from Microsecond Molecular Dynamics Simulations DOI
Fengyi Mi, Zhongjin He,

Guosheng Jiang

et al.

ACS Sustainable Chemistry & Engineering, Journal Year: 2024, Volume and Issue: 12(11), P. 4644 - 4654

Published: March 4, 2024

A microscopic insight into the formation and growth of CH4 hydrate in glucose solution is vital to understand accumulation natural gas resources develop hydrate-based technologies. Herein, microsecond MD simulations have been performed investigate inside outside montmorillonite nanopore examine effects concentration salt ions. Simulation results indicate that molecules inhibit by controlling size nanobubbles. Specifically, adsorb H2O Na+ repel CH4, thus greatly promoting nanobubble inhibiting formation. Glucose adsorbed on surfaces hinder decomposition growth. The higher concentration, more unfavorable Furthermore, ions can construct abnormal cages also forming hydrogen bonds with water solids. These will pose challenges subsequent solid–liquid separation applications. molecular insights are scientific engineering significance sustainable chemistry related exploitation technologies, e.g., seawater desalination juice concentration.

Language: Английский

Citations

9

Rapid processing of dispersed hydrate-based purification for high-yield seawater desalination and wastewater treatment DOI
Huilian Sun, Shuai Wang, Shiqi Wang

et al.

Desalination, Journal Year: 2025, Volume and Issue: unknown, P. 118741 - 118741

Published: Feb. 1, 2025

Language: Английский

Citations

1

Recent insights into the anomalous dual nature (both promotion and Inhibition) of chemical additives on gas hydrate formation DOI Creative Commons
Ngoc N. Nguyen, Anh V. Nguyen

Chemical Engineering Journal, Journal Year: 2023, Volume and Issue: 475, P. 146362 - 146362

Published: Oct. 2, 2023

Gas hydrates are gas-carrying water structures which present both opportunities and threats to the energy industry environment. Chemical additives used either promote gas hydrate formation (GHF) realize or inhibit GHF mitigate threats. Understanding functionality of followed by tailoring their for a better performance is crucial requirement. However, recent studies showed that best-known promoters can act as inhibitors, vice versa, when concentrations changed. These puzzling observations demonstrate anomalous dual nature additives, has not been discussed thoroughly in literature. Here, we critically discuss popular such salts, surfactants, alcohols polymers, with particular focus on behaviors at low concentrations. We underpinning physics using concepts ion-specificity, hydrophobic soft ions, effect host–guest interactions provide new insights into relevant environmental applications.

Language: Английский

Citations

22

Fundamental studies and emerging applications of phase change materials for cold storage in China DOI
Lunxiang Zhang,

Xinran Xia,

Yuan Lv

et al.

Journal of Energy Storage, Journal Year: 2023, Volume and Issue: 72, P. 108279 - 108279

Published: July 26, 2023

Language: Английский

Citations

21