Effect of temperature on submerged membrane activated sludge reactor

This study investigates the performance of Submerged Membrane Activated Sludge Reactor on treating synthetic wastewater and also the effects of varying temperature of a laboratory scale Submerged Membrane Activated Sludge reactor. Laboratory bench-scale continuous reactors, fed with synthetic wastew...

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Main Author:	Abdul Rahman, Sabariah
Format:	Thesis
Language:	English
Published:	2009
Subjects:	TA Engineering (General) Civil engineering (General)
Online Access:	http://eprints.utm.my/id/eprint/10625/6/SabariahAbdulRahmanMFKA2009.pdf
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id	my-utm-ep.10625
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spelling	my-utm-ep.106252017-09-14T01:19:38Z Effect of temperature on submerged membrane activated sludge reactor 2009-11 Abdul Rahman, Sabariah TA Engineering (General). Civil engineering (General) TD Environmental technology. Sanitary engineering This study investigates the performance of Submerged Membrane Activated Sludge Reactor on treating synthetic wastewater and also the effects of varying temperature of a laboratory scale Submerged Membrane Activated Sludge reactor. Laboratory bench-scale continuous reactors, fed with synthetic wastewater were used. The operational volume of the reactor was 20 litres and included a membrane. The membrane was made from a polymer material (HDPE) with a thickness of 3.5 mm. The membrane, whose pore size ranged between 0.1 – 1mm, played the role of a secondary clarifier. Effects of temperatures of 27, 32, 37, 42, and 47°C were studied. Studies on the effects of temperatures were carried out as the pH was maintained in the range of 6.5 to 8.00 by adjustment of the feed pH with NaOH. Nutrients levels were maintained in the ratio of COD: N: P at 100:5:1. The biomass was considered to be acclimatized when MLSS concentration maintained constant levels (3000 ± 2000 mg/L). The reactor was aerated continuously with an aquarium air stone with compressed air supplied at approximately 3 L/min to maintain dissolved oxygen (DO) concentration of 1.5 to 3.0 mg/L. Results indicated that as the operating temperatures of the reactors were increased, the percent removal of the soluble chemical oxygen demand (COD) also increased. The highest percent removal of soluble COD was obtained at 47 ºC (90.45%) while the lowest percent removal of soluble COD was obtained at 32 ºC (24.27%). The higher concentration of MLSS was obtained at 42 ºC (80 mg/L) while the lowest concentration was obtained at 10 mg/L at the same temperature (42 ºC). The patterns of the MLSS concentration for the temperature of 27 ºC, 32 ºC, 37 ºC, 42 ºC, and 47 ºC was increased and decreased gradually. The greatest concentration of MLVSS was achieved at 47 ºC and 32 ºC (80 mg/L) while the lowest was attain at 42 ºC which is 10 mg/L. On the other hand, increases the temperature affected the DO concentrations. The highest and lowest DO concentration was obtained at 27 ºC which is 5.1 mg/L and 1.7 mg/L. 2009-11 Thesis http://eprints.utm.my/id/eprint/10625/ http://eprints.utm.my/id/eprint/10625/6/SabariahAbdulRahmanMFKA2009.pdf application/pdf en public masters Universiti Teknologi Malaysia, Faculty of Civil Engineering Faculty of Civil Engineering
institution	Universiti Teknologi Malaysia
collection	UTM Institutional Repository
language	English
topic	TA Engineering (General) Civil engineering (General) TA Engineering (General) Civil engineering (General)
spellingShingle	TA Engineering (General) Civil engineering (General) TA Engineering (General) Civil engineering (General) Abdul Rahman, Sabariah Effect of temperature on submerged membrane activated sludge reactor
description	This study investigates the performance of Submerged Membrane Activated Sludge Reactor on treating synthetic wastewater and also the effects of varying temperature of a laboratory scale Submerged Membrane Activated Sludge reactor. Laboratory bench-scale continuous reactors, fed with synthetic wastewater were used. The operational volume of the reactor was 20 litres and included a membrane. The membrane was made from a polymer material (HDPE) with a thickness of 3.5 mm. The membrane, whose pore size ranged between 0.1 – 1mm, played the role of a secondary clarifier. Effects of temperatures of 27, 32, 37, 42, and 47°C were studied. Studies on the effects of temperatures were carried out as the pH was maintained in the range of 6.5 to 8.00 by adjustment of the feed pH with NaOH. Nutrients levels were maintained in the ratio of COD: N: P at 100:5:1. The biomass was considered to be acclimatized when MLSS concentration maintained constant levels (3000 ± 2000 mg/L). The reactor was aerated continuously with an aquarium air stone with compressed air supplied at approximately 3 L/min to maintain dissolved oxygen (DO) concentration of 1.5 to 3.0 mg/L. Results indicated that as the operating temperatures of the reactors were increased, the percent removal of the soluble chemical oxygen demand (COD) also increased. The highest percent removal of soluble COD was obtained at 47 ºC (90.45%) while the lowest percent removal of soluble COD was obtained at 32 ºC (24.27%). The higher concentration of MLSS was obtained at 42 ºC (80 mg/L) while the lowest concentration was obtained at 10 mg/L at the same temperature (42 ºC). The patterns of the MLSS concentration for the temperature of 27 ºC, 32 ºC, 37 ºC, 42 ºC, and 47 ºC was increased and decreased gradually. The greatest concentration of MLVSS was achieved at 47 ºC and 32 ºC (80 mg/L) while the lowest was attain at 42 ºC which is 10 mg/L. On the other hand, increases the temperature affected the DO concentrations. The highest and lowest DO concentration was obtained at 27 ºC which is 5.1 mg/L and 1.7 mg/L.
format	Thesis
qualification_level	Master's degree
author	Abdul Rahman, Sabariah
author_facet	Abdul Rahman, Sabariah
author_sort	Abdul Rahman, Sabariah
title	Effect of temperature on submerged membrane activated sludge reactor
title_short	Effect of temperature on submerged membrane activated sludge reactor
title_full	Effect of temperature on submerged membrane activated sludge reactor
title_fullStr	Effect of temperature on submerged membrane activated sludge reactor
title_full_unstemmed	Effect of temperature on submerged membrane activated sludge reactor
title_sort	effect of temperature on submerged membrane activated sludge reactor
granting_institution	Universiti Teknologi Malaysia, Faculty of Civil Engineering
granting_department	Faculty of Civil Engineering
publishDate	2009
url	http://eprints.utm.my/id/eprint/10625/6/SabariahAbdulRahmanMFKA2009.pdf
_version_	1747814798373945344

Effect of temperature on submerged membrane activated sludge reactor

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