Research on High-Concentration Activated Sludge Method for Energy-Efficient Nitrogen Removal in Wastewater DOI Creative Commons

Luo Benfu,

Yuhang Liu,

Huang Yiqiang

et al.

Research Square (Research Square), Journal Year: 2024, Volume and Issue: unknown

Published: Dec. 12, 2024

Abstract Currently, there is an increasing emphasis on energy conservation and emission reduction, conventional water treatment processes can no longer meet the demand. Enhancing reflux ratio of mixed liquor a promising option to improve nitrogen removal in wastewater treatment. However, high lead significant carryover dissolved oxygen (DO), which negatively impact denitrification process. Research this area still relatively limited. The concentration activated sludge method significantly reduce oxygen. Therefore, study compares it with internal recirculation terms pollutant recovery. It explores feasibility using enhance while achieving savings, calculates potential savings achieved. results indicate that employing increase system not only prevents detrimental effects anoxic zone but also enhances system's rates for BOD5, CODcr, ammonia nitrogen, total (TN). calculated Air-lift technique aeration pumps recovers approximately 31.46% DO. biochemical used experiment small scale, limits its ability fully demonstrate management advantages associated method.

Language: Английский

Application of construction waste residue-based compositing fillers in bioretention facility: Intensified nitrogen removal and mitigated by-product effects DOI

Xiaoke Lian,

Yinghui Tang, Qiong Wu

et al.

Environmental Research, Journal Year: 2025, Volume and Issue: unknown, P. 121315 - 121315

Published: March 1, 2025

Language: Английский

Citations

0
Research on High-Concentration Activated Sludge Method for Energy-Efficient Nitrogen Removal in Wastewater DOI Creative Commons

Luo Benfu,

Yuhang Liu,

Huang Yiqiang

et al.

Research Square (Research Square), Journal Year: 2024, Volume and Issue: unknown

Published: Dec. 12, 2024

Abstract Currently, there is an increasing emphasis on energy conservation and emission reduction, conventional water treatment processes can no longer meet the demand. Enhancing reflux ratio of mixed liquor a promising option to improve nitrogen removal in wastewater treatment. However, high lead significant carryover dissolved oxygen (DO), which negatively impact denitrification process. Research this area still relatively limited. The concentration activated sludge method significantly reduce oxygen. Therefore, study compares it with internal recirculation terms pollutant recovery. It explores feasibility using enhance while achieving savings, calculates potential savings achieved. results indicate that employing increase system not only prevents detrimental effects anoxic zone but also enhances system's rates for BOD5, CODcr, ammonia nitrogen, total (TN). calculated Air-lift technique aeration pumps recovers approximately 31.46% DO. biochemical used experiment small scale, limits its ability fully demonstrate management advantages associated method.

Language: Английский

Citations

0