Results 51 to 60 of about 1,651 (222)

Toward a Paradigm Shift in Low‐Temperature SCR Catalyst Design: Defect Engineering and Data‐Driven Integration

ENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
This work systematically reviews the key factors influencing the performance of low‐temperature NH3‐SCR. The mechanism and challenges of defect engineering strategies, such as oxygen vacancies, heteroatom doping, crystal facet exposure, and surface reconstruction, in controlling both activity and selectivity were analyzed.
Rongrong Kan, Pinjing He, Fan Lü, Hua Zhang   +3 more
wiley   +1 more source

New biological treatment method of domestic wastewater with simultaneous nitrification and denitrification based on detached biofilm

Applied Water Science
The paper relates to the treatment of municipal wastewater by intensifying simultaneous nitrification and denitrification processes. The obtained results can be applied to the construction of new treatment plants as well as the upgrading of existing ...
Alexandru Visnevschi, Igor Povar
doaj   +1 more source

Simultaneous Nitrification and Denitrification in Micro-Aerobic Biofilms

Water Science and Technology, 1992
Simultaneous nitrification and denitrification (SND) occurs in a micro-aerobic biofilm. Using a partially submerged rotating biological contactor(RBC) whose air phase oxygen partial-pressure is controllable, an experimental investigation was made into the effects of the oxygen flux to the biofilm on the SND.
M. Ishiguro, S. Masuda, Y. Watanabe
openaire   +1 more source

Warm‐wet transition restructures arid lake microbiomes and functional potential

iMetaOmics, EarlyView.
This study summarizes how a long‐term warm‐dry to warm‐wet transition restructures microbiomes and functional potential in Lake Bosten, an arid lake in northwestern China. Warm‐wet hydroclimatic change increased water level and hydrological connectivity, while decreasing salinity and total nitrogen.
Zhen Shen, Xingchen Li, Zhijun Gong, Yang Hu, Yongjiu Cai, Keqiang Shao, Guang Gao, Robbie M. Martin, Xiangming Tang   +8 more
wiley   +1 more source

Energy efficient process of nitrification and denitrification in activated sludge system with low organic load

MATEC Web of Conferences, 2017
The article summarizes the results of the second phase of a comprehensive study of energy efficient wastewater treatment processes in oxidation ditches.
Gulshin I.A., Gogina E.S
doaj   +1 more source

Bioinspired Copper Sites for the Transformations of Greenhouse Gases Like Methane and Nitrous Oxide

Journal of the Chinese Chemical Society, EarlyView.
This review highlights the bioinspired catalytic systems containing copper sites that facilitate the conversions of methane and nitrous oxide to methanol and nitrogen, respectively. ABSTRACT The quest for benign catalysts for environmental remediation under ambient conditions for a sustainable future is fueling contemporary research.
Amarendra Nath Maity, Kiran Reddy Kanubaddi, Ragesh Nath Radhakrishnan, Shyue‐Chu Ke   +3 more
wiley   +1 more source

Pilot scale treatment of polluted surface waters using membrane-aerated biofilm reactor (MABR)

Biotechnology & Biotechnological Equipment, 2018
The increasing threat to human health and aquatic life caused by nitrogen pollution in surface waters requires critical attention. The membrane-aerated biofilm reactor (MABR) is a promising alternative compared to conventional technologies. In this work,
Yi Li, Kaisong Zhang
doaj   +1 more source

Soil Mineral Nitrogen Concentrations Do Not Affect the Ability of Plantain (Plantago lanceolata L.) to Reduce Nitrous Oxide Emissions From Cattle Urine Patches

Journal of Plant Nutrition and Soil Science, EarlyView.
ABSTRACT Background Results to date on the effectiveness of plantain (Plantago lanceolata L.) use as a nitrous oxide (N2O) mitigation tool have been variable. In this context, soil mineral N and water content might be factors regulating plantain effectiveness in reducing N2O emissions.
Priscila L. Simon, Pablo L. Ribeiro, Celeste Lane, Alison Rutherford, Cecile A. M. de Klein   +4 more
wiley   +1 more source

Microbial communities and functional diversity in seafood

JSFA reports, EarlyView.
Abstract Functional diversity encompasses ecosystem processes that enhance adaptability to environmental change. This study explores the diversity of microorganisms associated with seafood. In this paper, we present our knowledge of microbial diversity in relation to seafood.
Christian Larbi Ayisi, Samuel Ayeh Osei, Grace Afumwaa Boamah, Gertrude Dzifa Mensah   +3 more
wiley   +1 more source

Iron/Manganese Oxide‐Bound Nitrogen Suppresses Microbial Mediated Nitrate Reduction in Soil

Land Degradation &Development, EarlyView.
ABSTRACT Nitrogen cycling plays a pivotal role in sustaining ecosystem productivity and stability, while the chemical forms of nitrogen in soils critically influence both its efficiency and pathways. In this study, farmland soils from the Anning River Basin—an important watershed in Southwest China—were investigated to examine the regulatory effects of
Yu Cheng, Xuehao Zheng, Miao Yang, Shoujiang Liu   +3 more
wiley   +1 more source