N2O Emission from Partial Nitrification and Full Nitrification in Domestic Wastewater Treatment Process
Abstract
:1. Introduction
2. Methods
2.1. Sludge and Wastewater
2.2. Batch Test Rules
2.3. Detection Method
3. Results and Discussion
3.1. N2O Emission in Partial Nitrification Process
3.2. N2O Emission in Full Nitrification Process
4. Conclusions
Author Contributions
Funding
Data Availability Statement
Conflicts of Interest
References
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COD (mg/L) | NH4+-N (mg/L) | NO2−-N (mg/L) | NO3−-N (mg/L) | TN (mg/L) | pH | Alkalinity | |
---|---|---|---|---|---|---|---|
minimum | 88 | 39.6 | 0 | 0 | 56.4 | 6.9 | 262 |
maximum | 276 | 91.2 | 2.8 | 1.2 | 98.5 | 7.7 | 343 |
average | 182 | 65.4 | 1.4 | 0.6 | 77.4 | 7.3 | 303 |
Batch Test Number | Sludge—Water Mixture Type | Initial pH | Reaction Time (h) | NH4+-N (mg/L) | NO2−-N (mg/L) | NO3−-N (mg/L) | DO (mg/L) |
---|---|---|---|---|---|---|---|
1 | partial nitrification sludge + effluent | 7.5 | 3 | 30 | 0 | 0.5 | |
partial nitrification sludge + effluent | 7.5 | 3 | 20 | 10 | 0.5 | ||
partial nitrification sludge + effluent | 7.5 | 3 | 10 | 20 | 0.5 | ||
partial nitrification sludge + effluent | 7.5 | 3 | 0 | 30 | 0.5 | ||
2 | full nitrification sludge + effluent | 7.5 | 3 | 30 | 0 | 0.5 | |
full nitrification sludge + effluent | 7.5 | 3 | 20 | 10 | 0.5 | ||
full nitrification sludge + effluent | 7.5 | 3 | 10 | 20 | 0.5 | ||
full nitrification sludge + effluent | 7.5 | 3 | 0 | 30 | 0.5 | ||
3 | full nitrification sludge + effluent | 7.5 | 3 | 20 | 0.5 | ||
full nitrification sludge + effluent | 7.5 | 3 | 20 | 1 | |||
full nitrification sludge + effluent | 7.5 | 3 | 20 | 2 | |||
full nitrification sludge + effluent | 7.5 | 3 | 20 | 3 |
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Li, P.; Peng, Y.; Wang, S.; Liu, Y. N2O Emission from Partial Nitrification and Full Nitrification in Domestic Wastewater Treatment Process. Water 2022, 14, 3195. https://doi.org/10.3390/w14203195
Li P, Peng Y, Wang S, Liu Y. N2O Emission from Partial Nitrification and Full Nitrification in Domestic Wastewater Treatment Process. Water. 2022; 14(20):3195. https://doi.org/10.3390/w14203195
Chicago/Turabian StyleLi, Pengzhang, Yongzhen Peng, Shuying Wang, and Yue Liu. 2022. "N2O Emission from Partial Nitrification and Full Nitrification in Domestic Wastewater Treatment Process" Water 14, no. 20: 3195. https://doi.org/10.3390/w14203195