Parametric optimization of domestic wastewater treatment in an activated sludge sequencing batch reactor using response surface methodology

2019 ◽  
Vol 54 (12) ◽  
pp. 1197-1205 ◽  
Author(s):  
Carlos Estrada-Vázquez ◽  
Abimael Salinas-Pacheco ◽  
Ever Peralta-Reyes ◽  
Hector M. Poggi-Varaldo ◽  
Alejandro Regalado-Méndez
Keyword(s):  
Response Surface Methodology ◽  
Wastewater Treatment ◽  
Activated Sludge ◽  
Response Surface ◽  
Sequencing Batch Reactor ◽  
Parametric Optimization ◽  
Batch Reactor ◽  
Domestic Wastewater ◽  
Domestic Wastewater Treatment

Response Surface Methodology (RSM) for Wastewater Flocculation by a Novel (AlCl3-PAM) Hybrid Polymer

2012 ◽  
Vol 560-561 ◽  
pp. 529-537 ◽  
Author(s):  
Ammar Salman Dawood ◽  
Yi Lian Li
Keyword(s):  
Response Surface Methodology ◽  
Wastewater Treatment ◽  
Response Surface ◽  
Aluminum Chloride ◽  
Domestic Wastewater ◽  
The Other ◽  
Hybrid Polymer ◽  
Ammonium Persulphate ◽  
Operating Variables ◽  
Domestic Wastewater Treatment

In this study, a novel aluminum chloride-ploy(acrylamide) hybrid polymer has been synthesized by free radical solution polymerization of acrylamide (AM) onto aluminum chloride (AlCl3) in the presence of ammonium persulphate and sodium hydrogen sulphite as polymerization’s initiators. On the other hand, the structure of hybrid polymer (AlCl3-PAM) has been characterized by Fourier transform infrared spectroscopy (FTIR). The central composite design (CCD) and response surface methodology (RSM) have been applied in the flocculation process of wastewater treatment to achieve maximum removal efficiencies of total suspended solids (TSS), turbidity , and chemical oxygen demined (COD), as the other objectives of this study. The operating variables in this experiment were new hybrid polymer dose and wastewater pH. The maximum conditions have been found to be wastewater pH 7, and hybrid polymer dose 100 mg/l. Under these optimal conditions, the removal of turbidity, TSS, and COD in the effluent have been reached to 98.2%, 99.1%, and 90.6% respectively. According to these results, domestic wastewater treatment using (AlCl3-PAM) has proved to be an effective alternative in the administration of COD, TSS, and turbidity problems of municipality wastewater.

Coupling of sequencing batch reactor and UASB reactor for domestic wastewater treatment

Desalination ◽  
2009 ◽  
Vol 242 (1-3) ◽  
pp. 325-335 ◽  
Author(s):  
A. Moawad ◽  
U.F. Mahmoud ◽  
M.A. El-Khateeb ◽  
E. El-Molla
Keyword(s):  
Wastewater Treatment ◽  
Sequencing Batch Reactor ◽  
Batch Reactor ◽  
Domestic Wastewater ◽  
Uasb Reactor ◽  
Domestic Wastewater Treatment

scholarly journals Performance of Aerobic Granular Sludge for Domestic Wastewater Treatment

2019 ◽  
Vol 8 (12) ◽  
pp. 3851-3854
Keyword(s):  
Wastewater Treatment ◽  
Activated Sludge ◽  
Batch Reactor ◽  
Biomass Concentration ◽  
Domestic Wastewater ◽  
Granular Sludge ◽  
Volume Index ◽  
Aerobic Granular Sludge ◽  
Domestic Wastewater Treatment ◽  
Low Strength

Aerobic granular sludge can be used to treat various types of wastewater, such as industrial, municipal and domestic wastewater. This study investigated the treatment of low-strength domestic wastewater while simultaneously developed aerobic granular sludge in a sequencing batch reactor (SBR). Activated sludge was used as the seeding for granulation. The results indicated good COD and ammoniacal nitrogen removal at 72% and 73%, respectively. Aerobic granular sludge was successfully developed with low sludge volume index (SVI30) of 29 mL/g, which demonstrated an excellent settling property of aerobic granular sludge. Biomass concentration increased significantly compared to the seed sludge, indicating high biomass density in the SBR system. Settling velocity of aerobic granular sludge was significantly higher compared to the conventional activated sludge. This study showed the feasibility of aerobic granular sludge to be developed using low-strength domestic wastewater. Moreover, this study demonstrated the long-term application of aerobic granular sludge in domestic wastewater treatment.

Advanced Treatment of Domestic Wastewater Using Sequencing Batch Reactor Activated Sludge Process

1993 ◽  
Vol 28 (10) ◽  
pp. 267-274 ◽  
Author(s):  
M. Imura ◽  
E. Suzuki ◽  
T. Kitao ◽  
S. Iwai
Keyword(s):  
Activated Sludge ◽  
Sequencing Batch Reactor ◽  
Batch Reactor ◽  
Domestic Wastewater ◽  
Experimental Period ◽  
Small Scale ◽  
Experimental Plant ◽  
Activated Sludge Process ◽  
Nitrogen And Phosphorus ◽  
Experimental Apparatus

In order to apply a sequencing batch reactor activated sludge process to small scale treatment facilities, various experiments were conducted by manufacturing an experimental apparatus made of a factory-produced FRP cylinder transverse tank (Ø 2,500mm). Results of the verification test conducted for one year by leading the wastewater discharged from apartment houses into the experimental apparatus were as follows. Excellent performance was achieved without any addition of carbon source, irrespective of the organic compound concentration and the temperature of raw wastewater. Organic substances, nitrogen and phosphorus were removed simultaneously. Due to the automated operation format, stable performance was obtained with only periodic maintenance. Though water depth of the experimental plant was shallow, effective sedimentation of activated sludge was continued during the experimental period. Regarding the aerobic and anaerobic process, nitrification and denitrification occurred smoothly.

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