Results 71 to 80 of about 12,786 (254)

Environmental Risk Assessment and Anti‐Corrosion Efficacy of Safe‐by‐Design Nitrite‐Based Nanomaterials for Maritime Applications

Nano Select, Volume 7, Issue 2, February 2026.
The environmental behavior and impact of anti‐corrosion nanoadditives, ZnAl‐NO2 and MgAl‐NO2 layered double hydroxides (LDH), are assessed under marine conditions. These nanomaterials show instability in water but exhibit no or low toxicity to most tested marine species.
Joana Figueiredo, Fernando C. Perina, Diana Carneiro, Muhammad Ahsan Iqbal, Patrícia V. Silva, Olga Kaczerewska, Cristina Neves, Cláudia Rocha, Tânia Oliveira, Frederico Maia, João Tedim, Susana Loureiro, Roberto Martins   +12 more
wiley   +1 more source

Spatial interaction of archaeal ammonia-oxidizers and nitrite-oxidizing bacteria in an unfertilized grassland soil

Frontiers in Microbiology, 2016
Interrelated successive transformation steps of nitrification are performed by distinct microbial groups – the ammonia-oxidizers, comprising ammonia-oxidizing archaea (AOA) and bacteria (AOB), and nitrite-oxidizers such as Nitrobacter and Nitrospira ...
Barbara eStempfhuber, Tim eRichter-Heitmann, Kathleen M. Regan, Angelika eKölbl, Pia eKaul, Sven eMarhan, Johannes eSikorski, Joerg eOvermann, Michael W. Friedrich, Ellen eKandeler, Michael eSchloter   +10 more
doaj   +1 more source

Response Characteristics of Nitrifying Bacteria and Archaea Community Involved in Nitrogen Removal and Bioelectricity Generation in Integrated Tidal Flow Constructed Wetland-Microbial Fuel Cell

Frontiers in Microbiology, 2020
This study explores nitrogen removal performance, bioelectricity generation, and the response of microbial community in two novel tidal flow constructed wetland-microbial fuel cells (TFCW-MFCs) when treating synthetic wastewater under two different ...
Longmian Wang, Qingqing Pang, Fuquan Peng, Aiguo Zhang, Ying Zhou, Jianjun Lian, Yimin Zhang, Fei Yang, Yueming Zhu, Chengcheng Ding, Xiang Zhu, Yiping Li, Yibin Cui   +12 more
doaj   +1 more source

Nitrogen removal in a two-chambered microbial fuel cell: Establishment of a nitrifying-denitrifying microbial community on an intermittent aerated cathode [PDF]

, 2016
A microbial fuel cell (MFC) was used to study nitrogen dynamics and its feasibility for high strength wastewater treatment. Intermittent aeration was applied on the cathode chamber accomplishing the establishment of a simultaneous nitrifying-denitrifying
Bonmatí Blasi, August, Cerrillo Moreno, Míriam, Sotres Fernandez, Ana, Viñas Canals, Marc   +3 more
core   +2 more sources

Effect of COD:N ratio on biological nitrogen removal using full-scale step-feed in municipal wastewater treatment plants

Sustainable Environment Research, 2020
This study investigated the effect of low and high chemical oxygen demand (COD):N ratios on biological nitrogen removal and microbial distributions in full-scale step-feed (SF) municipal wastewater treatment plants (WWTPs) in Thailand (SF1) and Taiwan ...
Supaporn Phanwilai, Pongsak Noophan, Chi-Wang Li, Kwang-Ho Choo   +3 more
doaj   +1 more source

Optimization of Growth Performance of Nile Tilapia (Oreochromis niloticus) in Biofloc Farming: Evaluating Growth Performance and System Stability Under Reduced Feeding Regimes

Aquaculture Research, Volume 2026, Issue 1, 2026.
This study assessed the effect of different feeding levels on the growth performance of Nile tilapia (Oreochromis niloticus) as well as on the stability of the biofloc system over a 9‐week experimental period. Three feeding levels were tested: BFT100 (100% of a complete ration), BFT75 (75% of a complete ration), and BFT50 (50% of a complete ration).
Lydie Bambi Langa, Amaël Bossan, Vincent Gennotte, Carole Rougeot   +3 more
wiley   +1 more source

A Comprehensive Study of Biohopanoid Production in Alphaproteobacteria: Biosynthetic, Chemotaxonomical, and Geobiological Implications

Geobiology, Volume 23, Issue 6, November/December 2025.
ABSTRACT Bacteriohopanepolyol derivatives (BHPDs) and dia‐ and catagenetic products formed from these bacterial membrane modifiers are extensively used as biomarkers in molecular ecological and geoscience studies. Some BHPDs can be assigned to specific phylogenetic bacterial groups. With the vastly increasing availability of complete bacterial genomes,
Jaap S. Sinninghe Damsté, Michel Koenen, Vera Thiel, Nora Richter, Ellen C. Hopmans, Nicole J. Bale   +5 more
wiley   +1 more source

Nitrification-denitrification in WSP: a mechanism for permanent nitrogen removal in maturation ponds [PDF]

, 2009
A pilot-scale primary maturation pond was spiked with 15N-labelled ammonia (15NH4Cl) and 15N labelled nitrite (Na15NO2), in order to improve current understanding of the dynamics of inorganic nitrogen transformations and removal in WSP systems.
Camargo Valero, M, Curtis, T, Davenport, R, Mara, D, Newton, R, Read L F   +5 more
core  

Achieving short-cut nitrification and denitrification in modified intermittently aerated constructed wetland [PDF]

, 2017
This study aim to enhance nitrogen removal performance via shifting nitrogen removal pathway from nitrate to nitrite pathway. It was demonstrated that nitrite pathway was successfully and stably achieved in CWs by using modified intermittent aeration ...
He, Xugang, Hou, Jie, Ma, Tao, Xia, Ling, Zhang, Yiqing, Zhou, Yiyong   +5 more
core   +1 more source

Evaluation of Nutrient Flow Through and Media‐Bed Aquaponic Systems

Aquaculture, Fish and Fisheries, Volume 5, Issue 5, October 2025.
ABSTRACT This study evaluates the performance of an integrated aquaponic system combining gravel bed and NFT modules within a recirculating loop, focusing on nutrient dynamics, plant growth and sensory quality. Conducted in a semi‐controlled greenhouse, the system utilized Nile tilapia (Oreochromis niloticus) and cultivated lettuce, Swiss chard and ...
Belay Abdissa, Melkamu Gete, Esubalew Muluneh   +2 more
wiley   +1 more source