Results 71 to 80 of about 134,962 (250)

Synthesis and characterization of low-cost activated carbon prepared from Malawian baobab fruit shells by H3PO4 activation for removal of Cu(II) ions: equilibrium and kinetics studies

Applied Water Science, 2017
In this study, low-cost activated carbon (AC) prepared from baobab fruit shells by chemical activation using phosphoric acid was evaluated for the removal of Cu(II) ions from aqueous solution.
Ephraim Vunain, Davie Kenneth, Timothy Biswick   +2 more
doaj   +1 more source

Nanoscale Secondary Ion Mass Spectrometry for Quantifying Membrane Fouling: Fouling Layer Structure and Chemical Interaction

Advanced Science, EarlyView.
Nanoscale secondary ion mass spectrometry (Nano SIMS) is established as a powerful analytical tool to visualize and quantify the membrane fouling layers. ABSTRACT Membrane technology has garnered considerable attention for applications in wastewater treatment and resource recovery. Nevertheless, membrane fouling remains a major barrier, yet the lack of
Mengfei Wu, Xinhua Wang, Pin Zhao, Weilong Song, Ming Xie   +4 more
wiley   +1 more source

Treatment of industrial wastewater from explosives manufacturing: Technologies, legal requirements - Case study

Water Resources and Industry
Wastewater from explosives manufacturing poses significant treatment challenges due to extreme pollutant concentrations and complex contaminant matrices.
Grzegorz Michalski, Anna Marszałek, Gabriela Kamińska   +2 more
doaj   +1 more source

Tailored Catalytic Microenvironments Enable Efficient Electrochemical Ammonia Production

Advanced Science, EarlyView.
This study shows that Co2+ substitution in inverse spinel FeFeCoO4 constructs an integrated catalytic microenvironment for efficient nitrate‐to‐ammonia reduction. Jahn–Teller distortion activates Fe sites for *H generation, while hard–soft acid–base regulated dual‐metal sites optimize proton‐coupled electron transfer and intermediate adsorption ...
Qi Zhang, Peimiao Zou, Huimin Zhang, Alex J. Brown, Yingjie Song, Marc Walker, Yisong Han, Kui Xie, Shanwen Tao   +8 more
wiley   +1 more source

Process of hydraulic models calibration

E3S Web of Conferences, 2018
Mathematical modelling of the water supply systems (WSS) and water quality changes in the system is a complex and difficult task to solve, it requires an interdisciplinary approach to considering the determinants of WSS work.
Zimoch Izabela, Bartkiewicz Ewelina
doaj   +1 more source

Optimization of Mobile Emergency Team Deployment in Water Crises Using Neural Networks (Case Study: Pakdasht, Varamin, Pishva and Qarchak Counties) [PDF]

آب و فاضلاب
The water scarcity crisis in Tehran Province and the Varamin Plain, coupled with frequent water and power outages, has led to air entrainment in pipelines, increased pressure, and pipe bursts, highlighting the need for intelligent water management in the
Malihe Moazezi Farhadifar, Iman Tavakoli
doaj   +1 more source

Simultaneous Wastewater‐to‐Hydrogen Upgrading via Mechanically Driven Piezocatalysis Over Ag‐ZnO Nanorods

Advanced Science, EarlyView.
A piezocatalytic strategy enables simultaneous wastewater purification and hydrogen generation by harnessing mechanical energy. Complementary piezo‐induced charges are selectively directed toward oxidation and reduction pathways, achieving efficient pollutant degradation and continuous H2 evolution.
Yiqing Wei, Jianghai Huang, Yejunchi Zhang, Yang Wang, Dongmei Li, Chaogang Ban, Peng Yu, Jiangping Ma, Zhenxiang Cheng   +8 more
wiley   +1 more source

Assessment of the effect of alkaline additives for hygienization and inactivation of bacteria indicator and helminth eggs in faecal sludge

Discover Environment
Currently, there is no effective, reliable, and independent natural method for complete sanitization of sludge. Hence, the objective of this study was to evaluate the effect of alkaline treatments on the sanitization of biosolids. The principle was based
Joel Arnold Wafo Kamdem, Guy Valérie Wafo Djumyom, Paul Agendia Atabong, Melanie Bawou A. Rim, Tchianzeu Tekamdjo Stéphane Lauris, Emmanuel Noumsi Foamouwe, Emmanuel Youmbi   +6 more
doaj   +1 more source

W‐N‐C Tandem Catalytic Centers Mediating Efficient Charge Transfer for the Enhanced Radical‐Path U(VI) Photoreduction

Advanced Science, EarlyView.
This work constructed a tandem W−N−C center to simultaneously achieve the regulation of reaction pathways and optimization of charge separation efficiency. The Lewis‐acidic W6+ sites activated O2 to generate O2−$O_2^ - $, with enhanced charge separation via electronic modulation, steering U(VI) reduction down an efficient radical pathway.
Zhiyao Wu, Jinhao Xu, Hao Fu, Yuxiang Deng, Nannan Wang, Wenhua Zhang, Peng Zhang, Zhiwei Huang, Zhenpeng Cui, Shu‐Xian Hu, Wangsuo Wu, Duoqiang Pan   +11 more
wiley   +1 more source

An Embodied Paper‐Based Microfluidic Al‐Air Battery for Enduring Untethered Insect‐Scale Robots

Advanced Science, EarlyView.
This work presents a centimeter‐scale microfluidic aluminum–air battery (MFAAB) with dual‐surface anode and F−‐mediated byproduct decomposition. The design enables a high capacity of 2697.05 mAh/g Al and delivers tens of milliwatts to power LEDs, motors, and a toy car.
Yun Yang, Tao Jiang, Zhongyue Lu, Dapeng Fan, Zucheng Yi, Zirong Luo   +5 more
wiley   +1 more source