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Experimental Study of Ultrasonic Disintegration on Biological Nitrogen and Phosphorus Removal


Affiliations
1 School of Civil Engineering, Southwest Jiaotong University, Chengdu, Si Chuan, China
 

In wastewater treatment plants (WWTP) in China, the lack of carbon source has become a critical element, which restricts the efficiency of biological nitrogen and phosphorus removal (NPR). This paper analyses the application of ultrasonic disintegration of sludge, exploiting the internal carbon source for the biological NPR. Tests on WWTP have been conducted and the indexes of CODcr, TN, NH3- N, TP in the raw water and effluent recorded respectively. The efficiency and mechanism of NPR have been analysed. This research shows that with the application of ultrasonic disintegration of sludge, economic and practically high-quality carbon source can be obtained.

Keywords

Ultrasonic Disintegration, Nitrogen Phosphorus, Internal Carbon Source, Sludge.
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  • Experimental Study of Ultrasonic Disintegration on Biological Nitrogen and Phosphorus Removal

Abstract Views: 146  |  PDF Views: 0

Authors

Zhourong Cao
School of Civil Engineering, Southwest Jiaotong University, Chengdu, Si Chuan, China
Shunsheng Yang
School of Civil Engineering, Southwest Jiaotong University, Chengdu, Si Chuan, China
Xipeng Zheng
School of Civil Engineering, Southwest Jiaotong University, Chengdu, Si Chuan, China
Guohan Zhao
School of Civil Engineering, Southwest Jiaotong University, Chengdu, Si Chuan, China

Abstract


In wastewater treatment plants (WWTP) in China, the lack of carbon source has become a critical element, which restricts the efficiency of biological nitrogen and phosphorus removal (NPR). This paper analyses the application of ultrasonic disintegration of sludge, exploiting the internal carbon source for the biological NPR. Tests on WWTP have been conducted and the indexes of CODcr, TN, NH3- N, TP in the raw water and effluent recorded respectively. The efficiency and mechanism of NPR have been analysed. This research shows that with the application of ultrasonic disintegration of sludge, economic and practically high-quality carbon source can be obtained.

Keywords


Ultrasonic Disintegration, Nitrogen Phosphorus, Internal Carbon Source, Sludge.