Results 31 to 40 of about 1,651 (222)

Correcting Apparent Priming Bias Unveils Fertilizer Nitrogen‐Risk Archetypes of Surplus and Depletion Across Asian Rice Systems

Advanced Science, EarlyView.
Correcting the apparent priming effect resolves systematic biases in Asian rice fertilizer nitrogen accounting. Net soil retention drops below 7%, while 48% of fertilizer escapes, inflicting US$98.53 billion in annual reactive‐nitrogen damages. High‐resolution mapping uncovers N‐risk archetypes across 42% of the rice area, delivering a spatially ...
Xiuyun Liu, Siyuan Cai, Longlong Xia, Jagdish K. Ladha, Xiaoyuan Yan, Xu Zhao   +5 more
wiley   +1 more source

Nitrogen removal capability and mechanism of a novel low-temperature-tolerant simultaneous nitrification-denitrification bacterium Acinetobacter kyonggiensis AKD4

Frontiers in Microbiology
A low-temperature-tolerant simultaneous nitrification-denitrification bacterial strain of Acinetobacter kyonggiensis (AKD4) was identified. It showed high efficiency in total nitrogen (TN) removal (92.45% at 10°C and 87.51% at 30°C), indicating its ...
Jiwei Mao, Ruojin Zhao, Yiyi Li, Wenpan Qin, Shengchun Wu, Shengchun Wu, Weiping Xu, Peng Jin, Zhanwang Zheng, Zhanwang Zheng   +9 more
doaj   +1 more source

Simultaneous Partial Nitrification and Denitrification Maintained in Membrane Bioreactor for Nitrogen Removal and Hydrogen Autotrophic Denitrification for Further Treatment

Membranes, 2021
Low C/N wastewater results from a wide range of factors that significantly harm the environment. They include insufficient carbon sources, low denitrification efficiency, and NH4+-N concentrations in low C/N wastewater that are too high to be treated. In
Kun Dong, Xinghui Feng, Wubin Wang, Yuchao Chen, Wei Hu, Haixiang Li, Dunqiu Wang   +6 more
doaj   +1 more source

Effect of sludge age on simultaneous nitrification and denitrification in membrane bioreactor

Bioresource Technology, 2011
This study evaluated the effect of sludge age on simultaneous nitrification and denitrification in a membrane bioreactor treating black water. A membrane bioreactor with no separate anoxic volume was operated at a sludge age of 20 days under low dissolved oxygen concentration of 0.1-0.2mg/L.
Hocaoglu, S. Murat, Insel, G., Cokgor, E. Ubay, Orhon, D.   +3 more
openaire   +3 more sources

Adaptive Responses of Tropical Crops: A Multi‐Scale Omics Integrated Perspective

Advanced Science, EarlyView.
Tropical crops integrate genomic, morphological, physiological, and ecological adaptations to thrive under extreme and variable environments. This review highlights how natural selection, domestication, and breeding shape stress resilience, resource‐use strategies, and productivity in sugarcane, banana, cassava, rubber and oil palm, offering new routes
Peilin Wang, Chenhui Li, Dongjiao Wang, Qibin Wu, Zhen Zeng, Huiming Guo, Han Cheng, Songbi Chen, Hongxing Cao, Hongmei Cheng, Jianghui Xie, Youxiong Que   +11 more
wiley   +1 more source

Evaluation of Greenhouse Gas Emissions and Sludge Characteristics in Typical AAO Process WWTPs in Taihu Lake Basin, China

Asia-Pacific Journal of Chemical Engineering, EarlyView.
ABSTRACT This study investigated sludge characteristics and greenhouse gas (GHG) emission from 16 anaerobic‐anoxic‐oxic (AAO) process wastewater treatment plants (WWTPs), 11 municipal and 5 industrial WWTPs, located in the Taihu Lake Basin, China. Influent/effluent water quality, sludge properties, operational parameters, GHG emission patterns, and ...
He Li, Zhirun Liu, Rajendra Prasad Singh
wiley   +1 more source

Performance Evaluation of Moving-bed Sequencing Batch Reactor for Livestock Wastewater Treatment by SND Process [PDF]

محیط زیست و مهندسی آب, 2020
In this study, the performance of moving-bed sequencing batch reactor with intermittent aeration strategy (IA-MBSBR) was evaluated for treatment of livestock wastewater in simultaneous nitrification-denitrification process.
Seyed Mohammad Ali Masoudi, Javad Sargolzaei, Fatemeh Sabeti Dehkordi, Vahid Zeynali   +3 more
doaj   +1 more source

Biochar‐based fertilizers improve nutrient use efficiency in sunflower grown on a subtropical tidal soil

Biofuels, Bioproducts and Biorefining, EarlyView.
Abstract Improving fertilizer use efficiency is essential for reducing environmental pollution, sustaining agricultural production, and maximizing the economic profitability of crop production systems. This study tested the hypothesis that the formulation strategy of biochar‐based fertilizers, rather than nutrient addition alone, is associated with ...
Md. Al‐Amin, Miftahul Jannat Mim, S. M. Mahbubul Alam, Shamim Mia, M. M. Masud, Gopal Saha, Md. Abdul Kader, Keiji Jindo   +7 more
wiley   +1 more source

Recent advances in application of moving bed bioreactors for wastewater treatment from recirculating aquaculture systems: A review

Aquaculture and Fisheries, 2022
In recent years, government investments in implementing restrictive public policies on the treatment and discharge of effluents from the aquaculture industry have increased.
Abubakar Shitu, Gang Liu, Aliyu Idris Muhammad, Yadong Zhang, Musa Abubakar Tadda, Wanhe Qi, Dezhao Liu, Zhangying Ye, Songming Zhu   +8 more
doaj   +1 more source

Nitrification and simultaneous denitrification byAzospirillum brasilense 12S

Journal of Biosciences, 1987
Azospirillum brasilense, an associative diazotrophs from sorghum roots grows autotrophically on NH 4 + and CaCO3. NH 4 + a is also oxidized to NO 2 - and then denitrified. Addition of malate to the autotrophic medium enhances both NH 4 + oxidation as well as NONH 2 - dissimilation.
B. S. Kundu, K. R. Dadarwal, P. Tauro
openaire   +1 more source