process [42]. CandidatusAccumulibacteris responsible for treating phosphorus in sewage [43]. The supply of appropriate oxygen content inactivated sludgewill provide effective conditions for the microbial community and promote the degradation of compounds in water [44]. Activated sludge process has the ...
Parameters for Activated Sludge Calculations The aeration tank/secondary clarifier flow diagram at the left shows some of the parameters used for activated sludge design and operational calculations. The parameters shown in the diagram, plus some more, are described with U.S. and S.I. units in t...
breaking up the activated sludge into small flakes; introducing an oxygen-containing gas in fine distribution into the resulting finely divided suspension; and, after the oxygen has been at least partially consumed, recoagulating the finely divided suspension in a potential flow to form settlable fl...
One promising approach is the vegetation-activated sludge process (V-ASP), which integrates constructed wetlands with conventional activated sludge treatment. Given the limited research on V-ASP systems, this study explored the potential of low-cost adsorbent materials—zeolite and sunflower husk ...
These include a flow rate (Q) of 1.8 m3/h to give a hydraulic retention time (HRT) of 11.1 h, bulk liquid temperature of 26 °C, DO concentration within the bulk liquid of the HySAF reactor of 2.5 mg/L for model calibration. The activated sludge waste (WAS) rate was set to 2.2 ...
Microbial morphology, such as filamentous growth, has a large impact on wastewater treatment efficiency, as specific populations are essential for flocculation, settling, and dewatering in AS, but overgrowth can lead to problems in sludge settleability (bulking) and foaming41. This leads to solids ...
Bousba S, Meniai AH (2014) Removal of phenol from water by adsorption onto sewage sludge based adsorbent. Chem Eng Transact 40:235–240 Google Scholar Chatterjee A, Schiewer S (2011) Biosorption of cadmium (II) ions by citrus peels in a packed bed column: effect of process parameters ...
This barrier was set to slow down and adjust the wastewater flow into the center of the basin as well as reduce water turbulence. Startup of the activated sludge culture The bench scale units were started using 300-g wet AS each, collected from the aerated basin of the AS unit at ...
The peristaltic pump has a flow rate of 400 mL min−1, ensuring that the sludge suspension is transferred from the reactor to the pressing component in less than 3 s in a uniformly mixed state. The electromagnetic valve dispenses 28 μL per drop, with an interval of 300 s between ...
In this study, the residual pods of the forest species Erythrina speciosa were carbonized with ZnCl2 to obtain porous activated carbon and investigated for