scholarly journals Beyond Energy Balance: Environmental Trade-Offs of Organics Capture and Low Carbon-to-Nitrogen Ratio Sewage Treatment Systems

2020 ◽  
Vol 54 (8) ◽  
pp. 4746-4757
Author(s):  
Valeria I. Alvarado ◽  
Shu-Chien Hsu ◽  
Chor-Man Lam ◽  
Po-Heng Lee
Keyword(s):  
Energy Balance ◽  
Sewage Treatment ◽  
Low Carbon ◽  
Carbon To Nitrogen Ratio ◽  
Trade Offs ◽  
Nitrogen Ratio

scholarly journals Factors controlling nitrous oxide emissions from managed northern peat soils with low carbon to nitrogen ratio

2018 ◽  
Vol 122 ◽  
pp. 186-195 ◽  
Author(s):  
Maarit Liimatainen ◽  
Carolina Voigt ◽  
Pertti J. Martikainen ◽  
Jyrki Hytönen ◽  
Kristiina Regina ◽  
...  
Keyword(s):  
Nitrous Oxide ◽  
Nitrous Oxide Emissions ◽  
Low Carbon ◽  
Peat Soils ◽  
Carbon To Nitrogen Ratio ◽  
Nitrogen Ratio

scholarly journals Shifts in the Microbial Community of Activated Sludge with Different COD/N Ratios or Dissolved Oxygen Levels in Tibet, China

2019 ◽  
Vol 11 (8) ◽  
pp. 2284 ◽  
Author(s):  
Jin Xu ◽  
Peifang Wang ◽  
Yi Li ◽  
Lihua Niu ◽  
Zhen Xing
Keyword(s):  
Dissolved Oxygen ◽  
Activated Sludge ◽  
Sewage Treatment ◽  
Treatment Plant ◽  
Oxygen Demand ◽  
Operational Taxonomic Unit ◽  
Carbon To Nitrogen Ratio ◽  
Urban Sewage ◽  
Treatment Performance ◽  
Nitrogen Ratio

In this study, we examined the influence of the organic carbon-to-nitrogen ratio (chemical oxygen demand (COD/N)) and dissolved oxygen (DO) levels on the removal efficiency of pollutants and on the change in total microflora in the cyclic activated sludge system (CASS) in the Nyingchi prefecture in Tibet. The results demonstrated that the treatment performance was the best when the COD/N ratio was 7:1 or the DO levels were 2–2.5 mg/L in comparison with four different tested COD/N ratios (4:1, 5:1, 7:1, and 10:1) and DO concentrations (0.5–1, 1–2, 2–2.5, and 2.5–3.5 mg/L). The treatment performance can be explained by the relative operational taxonomic unit richness and evenness of the microbial communities in activated sludge. Evident microbial variance was observed, especially different COD/N ratios and DO concentrations, which were conducive to the disposal of urban sewage in plateaus. The results help to understand sewage treatment under different COD/N ratios or DO concentrations on plateaus. This work provides practical guidance for the operation of any wastewater treatment plant on a plateau.

The effects of different carriers on removal performance and membrane fouling by HMBR in treating sewage with low carbon-to-nitrogen ratio

2016 ◽  
Vol 102 ◽  
pp. 768-776 ◽  
Author(s):  
Zhi-Jiang Feng ◽  
Man Wu ◽  
Mei-Xiang Sun ◽  
Hui-Ying Liu ◽  
Ye-Zhong Zhang ◽  
...  
Keyword(s):  
Membrane Fouling ◽  
Low Carbon ◽  
Carbon To Nitrogen Ratio ◽  
Nitrogen Ratio

scholarly journals Bacteria-supported iron scraps for the removal of nitrate from low carbon-to-nitrogen ratio wastewater

RSC Advances ◽  
2019 ◽  
Vol 9 (6) ◽  
pp. 3285-3293 ◽  
Author(s):  
Xiawei Liu ◽  
Jian Xu ◽  
Jiaolong Huang ◽  
Manqi Huang ◽  
Tao Wang ◽  
...  
Keyword(s):  
Nitrate Removal ◽  
Cost Effective ◽  
Low Carbon ◽  
Carbon To Nitrogen Ratio ◽  
Effective System ◽  
Nitrogen Ratio ◽  
Supported Iron

A cost-effective system for nitrate removal was developed with the key role of iron and genus Hydrogenophaga.

Optimization of the process of antisolvent crystallization of carbonized ammonia with a low carbon-to-nitrogen ratio

2017 ◽  
Vol 155 ◽  
pp. 59-67 ◽  
Author(s):  
Yu Zhang ◽  
Jianmin Gao ◽  
Dongdong Feng ◽  
Qian Du ◽  
Shaohua Wu ◽  
...  
Keyword(s):  
Low Carbon ◽  
Carbon To Nitrogen Ratio ◽  
Antisolvent Crystallization ◽  
Nitrogen Ratio
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