We found a match
Your institution may have access to this item. Find your institution then sign in to continue.
- Title
The role of pH in the degradation of organic substances of institutional wastewater in a compartmentalized anaerobic migrating blanket reactor.
- Authors
Aruna, C.; Sivaraman, N.; Asha, B.
- Abstract
A laboratory-scale experimental setup was performed to construct a compartmentalized-anaerobic migrating blanket reactor (AMBR) in order to treat the wastewater generated from an institution with every compartment capacity being 14.55 L. Both suspended as well as attached growth processes were accomplished in the reactor. The researcher analyzed the pH level of every compartment. Further, the impact of pH in the development of acidogenic and methanogenic organisms in terms of reduced organic substance was also assessed. With regular intervals in hydraulic retention times such as 1.0, 1.5, 2.0, 2.5, 3.0, 3.5, 5.0, and 6.0 d, the complete experiments were conducted with three sets of average influent chemical oxidation demand viz 876, 764, and 660 mg/L. The study estimated the anaerobic pathway from the first to the fifth compartment with regards to a reduction in chemical oxygen demand (COD) due to pH impact. The low pH in the first two compartments, that is, 6.7 and 5.9 led to the reduced methanogenic community for metabolism whereas, in the same compartments, a minimum amount of biogas of 0.016 and 0.019 m3 of gas/kg COD removed was produced with less efficient COD removal of 50.60% in the first compartment and 40.79% in the second compartment. The fourth and fifth compartments had high pH values, due to the metabolism process that occurred in the methanogenic state in the fifth compartment was 77.01% of COD removal efficiency and 0.088 m3 of gas/kg COD removed and 75.86% of COD removal efficiency and 0.079 m3 of gas/kg COD removed in the fourth compartment. From the results, it was inferred that the pH has a profound effect on the experiments conducted in AMBR.
- Subjects
UPFLOW anaerobic sludge blanket reactors; SEWAGE; CHEMICAL oxygen demand; CHEMICAL reduction; RF values (Chromatography); OXYGEN reduction
- Publication
Desalination & Water Treatment, 2020, Vol 196, p439
- ISSN
1944-3994
- Publication type
Article
- DOI
10.5004/dwt.2020.26235