Results 31 to 40 of about 4,265 (165)

Effect of Re-Used Lignite and Mineral Wool Growing Mats on Plant Growth, Yield and Fruit Quality of Cucumber and Physical Parameters of Substrates in Hydroponic Cultivation

Agronomy, 2021
In hydroponic cultivation of vegetables with a solid substrate, mineral wool predominates. The pro-ecological policy and consumers’ expectations cause an increase in interest in organic substrates, which, when properly used, are less harmful to the ...
Radosław Łaźny, Małgorzata Mirgos, Jarosław L. Przybył, Jacek S. Nowak, Małgorzata Kunka, Janina Gajc-Wolska, Katarzyna Kowalczyk   +6 more
doaj   +1 more source

Review: Insight on Porous Carbon Positive Electrode for Sodium‐Ion Capacitors: Interplay Between Synthesis, Properties, and Performance

Advanced Science, EarlyView.
Sodium ion capacitor (SIC) is currently constrained by the low discharge capacity of commercial activated carbon as positive electrode material. This review provides a holistic summary of research efforts on alternative porous carbon materials for SIC. Image created by the authors with www.biorender.com.
Ademola Adeniji, Adrian Beda, Camélia Matei Ghimbeu   +2 more
wiley   +1 more source

Study on the Water in Lignite by DSC

MATEC Web of Conferences, 2017
As pointed out in several previous works, new drying technologies must be developed to ensure lignite remained competitive. In order to design and test them, it was needed to have a better understanding of the characters of water in lignite.
Li You, Zhang Shouyu, Zhao Menghao, Mao Qing, Yao Yunlong, Yang Jingning   +5 more
doaj   +1 more source

The Future of Hydrogen‐Powered Aviation: Technologies, Challenges, and a Strategic Roadmap for Sustainable Decarbonization

Advanced Energy and Sustainability Research, EarlyView.
Hydrogen‐powered aviation offers a transformative pathway to zero‐emission flight by eliminating in‐flight CO2 emissions. Key considerations include propulsion systems (fuel cells and hydrogen combustion), cryogenic storage and insulation challenges, infrastructure and cost barriers, and supply‐chain constraints.
Mubasshira, Md Mahbubur Rahman, Karib Hassan Khan, Md Nizam Uddin, Dewan Hafiz Nabil   +4 more
wiley   +1 more source

Extraction of Ge and synchronous activation of humic acid in germanium bearing lignite via oxidation leaching

Fuel Processing Technology
Germanium-bearing lignite was a crucial source for Ge extraction; however, existing methods focus on extracting Ge from lignite by-products, which overlooked its abundant organic matters.
Honghu Tang, Bingjian Liu, Xiongxing Zhang, Lijun Li, Zhenyue Zhang, Qingjun Guan   +5 more
doaj   +1 more source

Effect of Corn Straw on Hydrogen Production from Lignite

Fermentation, 2023
The conversion of lignite to clean energy has won considerable attention and plays an important role in achieving the goal of carbon reduction. The effects of corn straw on hydrogen production from lignite was explored by using lignite as the substrate ...
Ying Wang, Litong Ma, Jun Li
doaj   +1 more source

The Effect of Demineralization on Coal Functional Group Pyrolysis: Rank‐Dependent Dual Mechanisms of Structural Reorganization and Mineral Catalysis

Asia-Pacific Journal of Chemical Engineering, EarlyView.
ABSTRACT Coal pyrolysis, as a key thermochemical conversion process, is significantly influenced by inherent minerals, yet their role across different coal ranks remains inadequately understood. This study investigates the effect of acid‐washing (demineralization) on the thermal decomposition of six functional groups (aliphatic C–H, aromatic C–H/C=C, C=
Zhiyuan Niu, Guijian Liu, Hao Yin, Yang Song, Aifang Ding   +4 more
wiley   +1 more source

Effect of Selected Physical Parameters of Lignite Substrate on Morphological Attributes, Yield and Quality of Cucumber Fruits Fertigated with High EC Nutrient Solution in Hydroponic Cultivation

Applied Sciences, 2022
Environmentally friendly substrates that are biodegradable may provide an alternative to mineral wool, which is commonly used in hydroponic growing technology.
Radosław Łaźny, Jacek S. Nowak, Małgorzata Mirgos, Jarosław L. Przybył, Monika Niedzińska, Małgorzata Kunka, Janina Gajc-Wolska, Waldemar Kowalczyk, Katarzyna Kowalczyk   +8 more
doaj   +1 more source

Effect of Temperature and Atmosphere on Agglomeration of Bed Particles in a Bubbling Fluidised Bed Burning Na‐Enriched Coal

Asia-Pacific Journal of Chemical Engineering, EarlyView.
ABSTRACT Agglomeration of bed materials during circulating fluidised bed (CFB) combustion or gasification of high‐alkali fuel is a practical challenge in industrial practice. This work investigates experimentally the effect of temperatures (700°C–900°C) and atmosphere (air equivalence ratios 1.61–0.53) on agglomeration in a lab‐scale bubbling fluidised
Zipeng Guo, Jianbo Li, Xiaofei Long, Quanhai Wang, Xiaofeng Lu   +4 more
wiley   +1 more source

Enhancement of the Plant‐Accessible Phosphate Fraction in Sewage Sludge Ashes by Na+ or K+ Addition Prior to Combustion

ChemSusChem, Volume 18, Issue 6, March 15, 2025.
The addition of Na2CO3 or K2CO3 to sewage sludge prior to combustion leads to the production of ashes containing phosphate in the form of buchwaldite‐like phases (Ca(Na/K)PO4). Compared to conventional sewage sludge mono‐ashes, such Na‐ or K‐ashes show greatly increased P‐solubilities and proved to be potent P‐fertiliser materials in greenhouse ...
Lorenz Bier‐Schorr, Viktoria Gräser, Michael Scherer‐Lorenzen, Peter Hajek, Philipp Kurz   +4 more
wiley   +1 more source