Enhanced Dewatering of Activated Sludge by Skeleton-Assisted Flocculation Process
Abstract
:1. Introduction
2. Materials and Methods
2.1. Materials
2.2. Sludge Conditioning and Dehydration Experiments
2.3. Sludge Index Analysis Method
3. Results
3.1. Effect of PFS Dosage on Sludge Dewatering Performance
3.2. Effect of PAC Dosage on Sludge Dewatering Performance
3.3. Effect of Fly Ash Dosage on Sludge Dewatering Performance
3.4. Effect of Fly Ash Coupled with PFS on Sludge Dewatering Performance
3.5. Effect of FA-Coupled PAC on Sludge Dewatering Performance
3.6. Floc Structure after Sludge Conditioning
3.7. Effects of Different Conditioners on UV of Filtrate
3.8. Effect of Conditioner on Fractal Dimension of Sludge Floc
4. Conclusions
Author Contributions
Funding
Institutional Review Board Statement
Informed Consent Statement
Data Availability Statement
Conflicts of Interest
References
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Sludge Index | Moisture Content of Raw Slduge (%) | Organic Matter Content (%) | SRF (m/kg) | pH Value |
---|---|---|---|---|
Numerical value | 98.90 | 46.30 | 2.97 × 1012 | 7.51 |
Conditioner | PFS | PAC | Fly Ash | Fly Ash +PFS | Fly Ash + PAC |
---|---|---|---|---|---|
Fractal dimension | 2.03 | 1.99 | 1.96 | 1.91 | 1.86 |
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Xia, J.; Rao, T.; Ji, J.; He, B.; Liu, A.; Sun, Y. Enhanced Dewatering of Activated Sludge by Skeleton-Assisted Flocculation Process. Int. J. Environ. Res. Public Health 2022, 19, 6540. https://doi.org/10.3390/ijerph19116540
Xia J, Rao T, Ji J, He B, Liu A, Sun Y. Enhanced Dewatering of Activated Sludge by Skeleton-Assisted Flocculation Process. International Journal of Environmental Research and Public Health. 2022; 19(11):6540. https://doi.org/10.3390/ijerph19116540
Chicago/Turabian StyleXia, Jiahua, Ting Rao, Juan Ji, Bijuan He, Ankang Liu, and Yongjun Sun. 2022. "Enhanced Dewatering of Activated Sludge by Skeleton-Assisted Flocculation Process" International Journal of Environmental Research and Public Health 19, no. 11: 6540. https://doi.org/10.3390/ijerph19116540