Accelerating Aerobic Sludge Granulation by Adding Dry Sewage Sludge Micropowder in Sequencing Batch Reactors
Bibliographic Data
| ID | 15463529 |
|---|---|
| Authors | Jun Li (0000-0001-5824-6626, Zhejiang University of Technology, corresponding author), Jun Liu (0000-0001-5393-3187, Zhejiang University of Technology), Danjun Wang (0000-0003-1038-4901, Zhejiang University of Technology), Tao Chen (0000-0001-9162-4078, Zhejiang University of Technology), Ting Ma (0000-0002-1814-7997, Zhejiang University of Technology), Zhihong Wang (0000-0002-7705-4715), Weilong Zhuo |
| Year | 2015 |
| Volume | 12 |
| Issue | 8 |
| Pages | 10056-10065 |
| Publication date | 2015-08-21 |
| Peer Reviewed | Yes |
| Open Access | Yes |
| Type | ARTICLE |
| Venue | International Journal of Environmental Research and Public Health (JOURNAL) |
| Journal identifiers | ISSN: 1661-7827 • E-ISSN: 1660-4601 |
| Publisher | Multidisciplinary Digital Publishing Institute (PUBLISHER • CH) |
| DOI | 10.3390/ijerph120810056 |
| PMID | 26308025 |
| OpenAlex | W2149512835 |
| Language | EN |
| Citations received | 1 |
Micropowder (20-250 μm) made from ground dry waste sludge from a municipal sewage treatment plant was added in a sequencing batch reactor (R2), which was fed by synthetic wastewater with acetate as carbon source. Compared with the traditional SBR (R1), aerobic sludge granulation time was shortened 15 days in R2. Furthermore, filamentous bacteria in bulking sludge were controlled to accelerate aerobic granulation and form large granules. Correspondingly, the SVI decreased from 225 mL/g to 37 mL/g. X-ray Fluorescence (XRF) analysis demonstrated that Al and Si from the micropowder were accumulated in granules. A mechanism hypotheses for the acceleration of aerobic granulation by adding dry sludge micropowder is proposed: added micropowder acts as nuclei to induce bacterial attachment; dissolved matters from the micropowder increase abruptly the organic load for starved sludge to control overgrown filamentous bacteria as a framework for aggregation; increased friction from the movement of micropowder forces the filaments which extend outwards to shrink for shaping granules
Activated sludge · Bacteria · Biology · Carbon fibers · Composite material · Granulation · Pulp and paper industry · Segmented filamentous bacteria · Sequencing batch reactor · Sewage · Sewage sludge · Sewage treatment · Sludge bulking · Waste management · Wastewater · Anaerobic Digestion and Biogas Production · Chemical Engineering · Chemistry · Environmental Science · Materials Science · Microbial Community Ecology and Physiology · Wastewater Treatment and Nitrogen Removal · Environmental Engineering
| Unique citing works | 1 |
|---|---|
| Citations per year | 0,17 |
| Citation span | 2020 - 2020 (1) |
| Citation velocity | historical |
| Highly cited | No |
| Citation types | Neutral: 1 |