Results 31 to 40 of about 2,156 (159)

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

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

Relationship of Atmospheric Nitrogen Deposition to Soil Nitrogen Cycling Along an Elevation Gradient in the Colorado Front Range

Earth's Future, Volume 13, Issue 1, January 2025.
Abstract Microbial processing of atmospheric nitrogen (N) deposition regulates the retention and mobilization of N in soils, with important implications for water quality. Understanding the links between N deposition, microbial communities, N transformations, and water quality is critical as N deposition shifts toward reduced N and remains persistently
Deborah A. Repert, Ruth C. Heindel, Sheila F. Murphy, Kaitlyn M. Jeanis   +3 more
wiley   +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

Current Status of the Propagation of Basil in Aquaponic Systems: A Literature Review

Aquaculture Research, Volume 2025, Issue 1, 2025.
Basil (Ocimum sp.) is a commercially important herb that has been coupled with several aquatic organisms in aquaponic systems. The goal of this literature review was to aggregate the current knowledge on the status of basil production in aquaponic systems by identifying the different aquatic organisms cultured with basil and hydroponic subsystems ...
Aya S. Hussain, Paul B. Brown, Christyn Bailey   +2 more
wiley   +1 more source

Impact of Commercial Probiotics on Growth, Prophenoloxidase, Superoxide Dismutase, and Digestive Enzyme Activity in Macrobrachium rosenbergii Cultured at Different Stocking Densities

Aquaculture Research, Volume 2025, Issue 1, 2025.
An experiment using a 4 × 3 factorial design was conducted to evaluate the impact of three commercial probiotics and a control (no probiotic treatment) on the growth, digestive, and immune enzymatic indices of prawns (Macrobrachium rosenbergii) at three stocking densities (2, 4, and 6 m−2).
Shikder Saiful Islam, Ramisa Nowshin, Joyanta Bir, Sadia Samiha Sarmin, Md. Rofiqul Islam, Afrin Sultana, Jannatul Ferdose, Airin Sultana, Fatima Tuz Zohora, Momotaz Khanom, Md Rony Golder, Md. Fahad Al Zobayer, Kishur Kumar Das, Mst. Anika Khatun, Sayma Sadia, Khandaker Anisul Huq, Christyn Bailey   +16 more
wiley   +1 more source

Stimulatory effect of xenobiotics on oxidative electron transport of chemolithotrophic nitrifying bacteria used as biosensing element. [PDF]

PLoS ONE, 2013
Electron transport chain (ETCh) of ammonium (AOB) and nitrite oxidizing bacteria (NOB) participates in oxidation of ammonium to nitrate (nitrification). Operation of ETCh may be perturbed by a range of water-soluble xenobiotics.
Andrzej Woznica, Agnieszka Nowak, Przemyslaw Ziemski, Mirosław Kwasniewski, Tytus Bernas   +4 more
doaj   +1 more source

Removal of nitrate and phosphate by aquatic plants during aquarium‐based ornamental fish production

North American Journal of Aquaculture, Volume 86, Issue 4, Page 413-423, October 2024.
Abstract Objective The rising demand for ornamental fish and plants in aquariums is met through industrial production. However, higher production densities may negatively impact water quality (such as ammonia, nitrate, nitrite, and dissolved oxygen levels), thus impacting production. This can be mitigated by utilizing specific aquatic plants to promote
Dániel Csontos, Zsuzsa Petra Bartal, László Bakacsy   +2 more
wiley   +1 more source

Nitrogen Removal Efficiency at Centralized Domestic Wastewater Treatment Plants in Bangkok, Thailand [PDF]

EnvironmentAsia, 2009
In this study, influents and effluents from centralized domestic wastewater treatment systems in Bangkok (Rattanakosin, Dindaeng, Chongnonsi, Nongkhaem, and Jatujak) were randomly collected in order to measure organic nitrogen plus ammonium-nitrogen ...
Pongsak Noophan
doaj  

Sandponics: A Sustainable Agriculture Solution for Food Security and Resource Efficiency in Arid Regions

Journal of Sustainable Agriculture and Environment, Volume 3, Issue 4, October 2024.
ABSTRACT Agriculture in arid regions encounters significant challenges, including water scarcity, poor soil quality and low crop yields. Sandponics, also known as the Integrated Aqua Vegeculture System (IAVS), presents a promising solution by utilizing sand as a sustainable, water‐efficient medium for food production. This review explores the potential
Chythra Somanathan Nair, Meera Bakheet Hamad Alsudain, Ramya Manoharan, Drishya Nishanth, Radhakrishnan Subramanian, Anicet Manga, Abdul Jaleel   +6 more
wiley   +1 more source