Algal-Bacterial Symbiosis System Treating High-Load Printing and Dyeing Wastewater in Continuous-Flow Reactors under Natural Light
Abstract
:1. Introduction
2. Materials and Methods
2.1. Algae Species and Sludge
2.2. Wastewater
2.3. Experimental Setup and Operation Conditions
2.4. Analytical Methods
2.4.1. Water Quality Analysis
2.4.2. Microbial Activity Analysis and Algal Biomass Estimation
2.4.3. Data Analysis
3. Results and Discussion
3.1. ABS System Startup
3.2. Performance of the ABS System under Different Hydraulic Retention Times
3.3. Performance of the ABS System under Different Aeration Conditions
3.4. Analysis of Effluent Organic Matter and Colour Quality
3.5. Advantages of Algae Addition
4. Conclusions
Author Contributions
Funding
Conflicts of Interest
References
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Sludge Activity Index | Mlss (Mixed Liquid Suspended Solids) | SV % (Settling Velocity) | SVI (Switch Virtual Interface) |
---|---|---|---|
Content | 3000 mg/L | 24 | 80 |
Wastewater Quality | COD (mg/L) | NH4+-N (mg/L) | TP (mg/L) | pH | Colour (times) |
---|---|---|---|---|---|
Regulating pool | 650–750 | 20–30 | 5.0–6.5 | 8.5–10.5 | 500–600 |
Secondary settling pool | 160–220 | 5–10 | 4.0–4.5 | 7.5–8.5 | 120–160 |
CAS System | ABS System | |||||
---|---|---|---|---|---|---|
Aeration (L/min) | 0.15–0.2 | 0.4–0.5 | 0.7–0.8 | 0.15–0.2 | 0.4–0.5 | 0.7–0.8 |
DO (mg/L) ± 0.2 | 0.45 | 2.05 | 3.25 | 0.85 | 2.85 | 3.95 |
Activity Index | 12th Day | 14th Day | 16th Day | 18th Day | 20th Day |
---|---|---|---|---|---|
MLSS (mg/L) | 3100 | 3200 | 3300 | 3500 | 3400 |
SVI | 100 | 120 | 125 | 135 | 135 |
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Lin, C.; Cao, P.; Xu, X.; Ye, B. Algal-Bacterial Symbiosis System Treating High-Load Printing and Dyeing Wastewater in Continuous-Flow Reactors under Natural Light. Water 2019, 11, 469. https://doi.org/10.3390/w11030469
Lin C, Cao P, Xu X, Ye B. Algal-Bacterial Symbiosis System Treating High-Load Printing and Dyeing Wastewater in Continuous-Flow Reactors under Natural Light. Water. 2019; 11(3):469. https://doi.org/10.3390/w11030469
Chicago/Turabian StyleLin, Chao, Peng Cao, Xiaolin Xu, and Bangce Ye. 2019. "Algal-Bacterial Symbiosis System Treating High-Load Printing and Dyeing Wastewater in Continuous-Flow Reactors under Natural Light" Water 11, no. 3: 469. https://doi.org/10.3390/w11030469