نتایج جستجو برای: phosphorus efficiency

تعداد نتایج: 427117  

Journal: :Bioresource technology 2012
O Ichihashi K Hirooka

Air-cathode single chamber microbial fuel cells (MFCs) were operated with swine wastewater. The maximum power density, the maximum current density, the average value of COD-removal efficiency, and the coulombic efficiency were 1-2.3 W/m(2), 6.0-7.0 A/m(2), 76-91%, and 37-47%, respectively. During operation, 70-82% of the phosphorus was removed from the influent, and some precipitations were obs...

Journal: :pollution 2015
abbas akbarzadeh shervin jamshidi maryam vakhshouri

this research compares the performance of floating systems planted with vetiveria zizanioides as a hydroponic approach for removing nutrients from two contaminated waters. for this purpose, two pilots with overall net volume of 60 litres were constructed and inoculated by secondary treated domestic wastewater (stdw) and irrigation water obtained from minab reservoir (iwmr) in batch mode. regard...

Journal: :Ecology 2015
Craig R See Ruth D Yanai Melany C Fisk Matthew A Vadeboncoeur Brauuo A Quintero Timothy J Fahey

Previous studies have attempted to link foliar resorption of nitrogen and phosphorus to their. respective availabilities in soil, with mixed results. Based on resource optimization theory, we hypothesized that the foliar resorption of one element could be driven by the availability of another element. We tested various measures of soil N and P as predictors of N and P resorption in six tree spe...

2014
Abdullah Uzum Ken Fukatsu Hiroyuki Kanda Yutaka Kimura Kenji Tanimoto Seiya Yoshinaga Yunjian Jiang Yasuaki Ishikawa Yukiharu Uraoka Seigo Ito

The phosphorus barrier layers at the doping procedure of silicon wafers were fabricated using a spin-coating method with a mixture of silica-sol and tetramethylammonium hydroxide, which can be formed at the rear surface prior to the front phosphorus spin-on-demand (SOD) diffusion and directly annealed simultaneously with the front phosphorus layer. The optimization of coating thickness was obta...

Journal: :Water science and technology : a journal of the International Association on Water Pollution Research 2003
J T de Sousa A van Haandel E P C Lima A V A Guimarães

The purpose of this present paper is to verify the performance of three wetland systems operated with effluents from a UASB reactor, with respect nutrient removal (nitrogen and phosphorus), pathogenic organisms and remaining carbonaceous material, monitored over a three-year period. The experiment was carried out and monitored at PROSAB (Programa de Saneamento Básico) in Campina Grande, Paraíba...

Journal: :Nano letters 2014
Jiangxuan Song Zhaoxin Yu Mikhail L Gordin Shi Hu Ran Yi Duihai Tang Timothy Walter Michael Regula Daiwon Choi Xiaolin Li Ayyakkannu Manivannan Donghai Wang

Room temperature sodium-ion batteries are of great interest for high-energy-density energy storage systems because of low-cost and natural abundance of sodium. Here, we report a novel phosphorus/graphene nanosheet hybrid as a high performance anode for sodium-ion batteries through facile ball milling of red phosphorus and graphene stacks. The graphene stacks are mechanically exfoliated to nanos...

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