scholarly journals The Influence of a Selected External Carbon Source on the Share of COD Fractions and the Speed of Denitrification Processes

2020 ◽  
Vol 21 (8) ◽  
pp. 57-63
Author(s):  
Katarzyna Ignatowicz ◽  
Joanna Smyk
Keyword(s):  
Carbon Source ◽  
External Carbon Source

Enhancing denitrification efficiency for nitrogen removal using waste sludge alkaline fermentation liquid as external carbon source

2018 ◽  
Vol 26 (5) ◽  
pp. 4633-4644 ◽  
Author(s):  
Mengyu Shao ◽  
Liang Guo ◽  
Zonglian She ◽  
Mengchun Gao ◽  
Yangguo Zhao ◽  
...  
Keyword(s):  
Carbon Source ◽  
Nitrogen Removal ◽  
Waste Sludge ◽  
External Carbon Source ◽  
Fermentation Liquid

scholarly journals Advanced treatment of coal chemical reverse osmosis concentrate with three-stage MABR

RSC Advances ◽  
2020 ◽  
Vol 10 (17) ◽  
pp. 10178-10187 ◽  
Author(s):  
Rukang Liu ◽  
Qin Wang ◽  
Mei Li ◽  
Jun Liu ◽  
Wei Zhang ◽  
...  
Keyword(s):  
Carbon Source ◽  
Reverse Osmosis ◽  
Advanced Treatment ◽  
External Carbon Source

A MABR system was constructed to treat coal chemical reverse osmosis concentrate without an external carbon source.

scholarly journals Optimizing external carbon source addition in domestics wastewater treatment based on online sensoring data and a numerical model

2017 ◽  
Vol 75 (11) ◽  
pp. 2716-2725 ◽  
Author(s):  
Qibin Wang ◽  
Qiuwen Chen ◽  
Jing Chen
Keyword(s):  
Wastewater Treatment ◽  
Numerical Model ◽  
Carbon Source ◽  
Wastewater Treatment Plants ◽  
Pilot Scale ◽  
Fixed Dose ◽  
Carbon Addition ◽  
External Carbon Source ◽  
Wastewater Quality ◽  
Denitrification Reactor

The removal of total nitrogen in wastewater treatment plants (WWTPs) is often unsatisfactory for a variety of reasons. One possible measure to improve nitrogen removal is the addition of external carbon. However, the amount of carbon addition is directly related to WWTP operation costs, highlighting the importance of accurately determining the amount of external carbon required. The objective of this study was to obtain a low nitrate concentration in the anoxic zone of WWTPs efficiently and economically by optimizing the external carbon source dosage. Experiments were conducted using a pilot-scale pre-denitrification reactor at a Nanjing WWTP in China. External carbon source addition based on online monitoring of influent wastewater quality and a developed nitrification–denitrification numerical model was investigated. Results showed that carbon addition was reduced by 47.7% and aeration costs were reduced by 8.0% compared with those using a fixed-dose addition mode in the pilot reactor. The obtained technology was applied to the full-scale Jiangxinzhou WWTP in Nanjing with promising results.

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