Removal of ammoniacal nitrogen from old leachate using batch electrocoagulation with vibration-induced electrode plate

2021 ◽  
Vol 9 (2) ◽  
pp. 105064
Author(s):  
Noorzalila Muhammad Niza ◽  
Mohd Suffian Yusoff ◽  
Muhammad Ammirrul Atiqi Mohd Zainuri ◽  
Madu Ijanu Emmanuel ◽  
Abdubaki Mohamed Hussen Shadi ◽  
...  
Keyword(s):  
Ammoniacal Nitrogen ◽  
Electrode Plate

scholarly journals Dynamics of Fermentation Parameters and Bacterial Community in High-Moisture Alfalfa Silage with or without Lactic Acid Bacteria

2021 ◽  
Vol 9 (6) ◽  
pp. 1225
Author(s):  
Shanshan Zhao ◽  
Fengyuan Yang ◽  
Yuan Wang ◽  
Xiaomiao Fan ◽  
Changsong Feng ◽  
...  
Keyword(s):  
Lactic Acid ◽  
Lactic Acid Bacteria ◽  
Bacterial Community ◽  
Ph Value ◽  
Ammoniacal Nitrogen ◽  
High Concentration ◽  
High Moisture ◽  
Acid Accumulation ◽  
Alfalfa Silage ◽  
Fermentation Parameters

The aim of this study was to gain deeper insights into the dynamics of fermentation parameters and the bacterial community during the ensiling of high-moisture alfalfa. A commercial lactic acid bacteria (YX) inoculant was used as an additive. After 15 and 30 days of ensiling, the control silage (CK) exhibited a high pH and a high concentration of ammoniacal nitrogen (NH3-N); Enterobacter and Hafnia-Obesumbacterium were the dominant genera. At 60 d, the pH value and the concentration of NH3-N in CK silage increased compared with 15 and 30 d, propionic acid and butyric acid (BA) were detected, and Garciella had the highest abundance in the bacterial community. Compared with CK silage, inoculation of YX significantly promoted lactic acid and acetic acid accumulation and reduced pH and BA formation, did not significantly reduce the concentration of NH3-N except at 60 d, and significantly promoted the abundance of Lactobacillus and decreased the abundance of Garciella and Anaerosporobacter, but did not significantly inhibit the growth of Enterobacter and Hafnia-Obesumbacterium. In conclusion, high-moisture alfalfa naturally ensiled is prone to rot. Adding YX can delay the process of silage spoilage by inhibiting the growth of undesirable microorganisms to a certain extent.

scholarly journals Recovery and applications of ammoniacal nitrogen from nitrogen-loaded residual streams: A review

2021 ◽  
Vol 295 ◽  
pp. 113096
Author(s):  
Zhe Deng ◽  
Niels van Linden ◽  
Elena Guillen ◽  
Henri Spanjers ◽  
Jules B. van Lier
Keyword(s):  
Ammoniacal Nitrogen

scholarly journals A Theoretical Study on an Elastic Polymer Thin Film-Based Capacitive Wind-Pressure Sensor

Polymers ◽  
2020 ◽  
Vol 12 (9) ◽  
pp. 2133
Author(s):  
Xue Li ◽  
Jun-Yi Sun ◽  
Bin-Bin Shi ◽  
Zhi-Hang Zhao ◽  
Xiao-Ting He
Keyword(s):  
Thin Film ◽  
Closed Form ◽  
Pressure Sensor ◽  
Closed Form Solution ◽  
Form Solution ◽  
Wind Pressure ◽  
Polymer Thin Film ◽  
Movable Electrode ◽  
Elastic Polymer ◽  
Electrode Plate

This study is devoted to the design of an elastic polymer thin film-based capacitive wind-pressure sensor to meet the anticipated use for real-time monitoring of structural wind pressure in civil engineering. This sensor is composed of four basic units: lateral elastic deflection unit of a wind-driven circular polymer thin film, parallel plate capacitor with a movable circular electrode plate, spring-driven return unit of the movable electrode plate, and dielectric materials between electrode plates. The capacitance of the capacitor varies with the parallel move of the movable electrode plate which is first driven by the lateral elastic deflection of the wind-driven film and then is, after the wind pressure is reduced or eliminated, returned quickly by the drive springs. The closed-form solution for the contact problem between the wind-driven thin film and the spring-driven movable electrode plate is presented, and its reliability is proved by the experiment conducted. The numerical examples conducted show that it is workable that by using the numerical calibration based on the presented closed-form solution the proposed sensor is designed into a nonlinear sensor with larger pressure-monitoring range and faster response speed than the linear sensor usually based on experimental calibration.

Hierarchical CoMoO4@Co3O4 nanocomposites on an ordered macro-porous electrode plate as a multi-dimensional electrode in high-performance supercapacitors

2017 ◽  
Vol 5 (33) ◽  
pp. 17312-17324 ◽  
Author(s):  
Mai Li ◽  
Yuanhao Wang ◽  
Hongxing Yang ◽  
Paul K. Chu
Keyword(s):  
Hydrothermal Synthesis ◽  
High Performance ◽  
Porous Electrode ◽  
Large Power ◽  
Electrode Plate

Hydrothermal synthesis of CoMoO4@Co3O4 nanocomposites on an OMEP as a multidimensional electrode, and its use in a CoMoO4@Co3O4/OMEP//AC supercapacitor, which delivered large power and stable cycling.

A novel mariner-based transposon system for the enhanced removal of high strength ammoniacal nitrogen in pharmaceutical effluents

RSC Advances ◽  
2016 ◽  
Vol 6 (7) ◽  
pp. 5703-5710
Author(s):  
J. Lekshmy ◽  
S. Iyappan ◽  
G. Sekaran ◽  
Syeda Ibriza Imtiaz ◽  
Pritish Ranjan ◽  
...  
Keyword(s):  
Pharmaceutical Industry ◽  
High Strength ◽  
Ammoniacal Nitrogen

High strength NH3–N in the effluent is the major issue in the pharmaceutical industry. A novel mariner-transposan based system could be the better solution for the treatment of high strength NH3–N in the pharmaceutical effluent.

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