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Chemical and biological oxidation of sulphur compounds under anoxic conditions / Nurul Ayu Fatma Ramli

Microbial transformations of wastewater in sewer networks result in wastewater quality changes. These processes may occur in bulk water, biofilm and sewer sediment phases under aerobic, anoxic or anaerobic conditions. Anoxic conditions do not naturally occur in sewers but are caused by nitrate addit...

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Main Author: Ramli, Nurul Ayu Fatma
Format: Student Project
Language:English
Published: 2008
Subjects:
Environmental engineering
Environmental pollution
Municipal refuse. Solid wastes
Online Access:https://ir.uitm.edu.my/id/eprint/49349/1/49349.PDF
https://ir.uitm.edu.my/id/eprint/49349/
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spelling my.uitm.ir.493492021-08-05T01:58:21Z https://ir.uitm.edu.my/id/eprint/49349/ Chemical and biological oxidation of sulphur compounds under anoxic conditions / Nurul Ayu Fatma Ramli Ramli, Nurul Ayu Fatma Environmental engineering Environmental pollution Municipal refuse. Solid wastes Microbial transformations of wastewater in sewer networks result in wastewater quality changes. These processes may occur in bulk water, biofilm and sewer sediment phases under aerobic, anoxic or anaerobic conditions. Anoxic conditions do not naturally occur in sewers but are caused by nitrate addition when managing odor and corrosion problems in sewer networks. The use of nitrate for the prevention of sulphide production is well documented. Batch test were designed and conducted to investigate the chemical and biochemical transformation rates of sulphur and nitrogen compounds under anoxic conditions in bulk water phase. The laboratory testing was conducted to establish the result. Throughout the experiment, the result for sulphur compounds in chemical transformation rate was found to be 0.00 mg SO4-S LAK , 0.01 mg SO3- S I/'h"1 and 0.03 mg S2O3-S l/h"1 while for nitrogen compounds it were found to be 0.01 mg NO3-N L'lKl and 0.00 mg NO2-N L h*1. The bio-chemical transformation rate for sulphur compounds are 0.38 mg SO4-S iA"1, 0.00 mg SO3-S L 'V and 0.67 mg S203-S iA"1. The value for nitrogen compounds are 1.62 mg NO3-N L^h"1 and 0.64 mg NO2-N L*!h . In sterilized wastewater the oxidation process is insignificant for chemical transformations. However, in active wastewater the oxidation process is significant for both chemical and biological transformations. 2008-11 Student Project NonPeerReviewed text en https://ir.uitm.edu.my/id/eprint/49349/1/49349.PDF ID49349 Ramli, Nurul Ayu Fatma (2008) Chemical and biological oxidation of sulphur compounds under anoxic conditions / Nurul Ayu Fatma Ramli. [Student Project] (Unpublished)
institution Universiti Teknologi Mara
building Tun Abdul Razak Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Teknologi Mara
content_source UiTM Institutional Repository
url_provider http://ir.uitm.edu.my/
language English
topic Environmental engineering
Environmental pollution
Municipal refuse. Solid wastes
spellingShingle Environmental engineering
Environmental pollution
Municipal refuse. Solid wastes
Ramli, Nurul Ayu Fatma
Chemical and biological oxidation of sulphur compounds under anoxic conditions / Nurul Ayu Fatma Ramli
description Microbial transformations of wastewater in sewer networks result in wastewater quality changes. These processes may occur in bulk water, biofilm and sewer sediment phases under aerobic, anoxic or anaerobic conditions. Anoxic conditions do not naturally occur in sewers but are caused by nitrate addition when managing odor and corrosion problems in sewer networks. The use of nitrate for the prevention of sulphide production is well documented. Batch test were designed and conducted to investigate the chemical and biochemical transformation rates of sulphur and nitrogen compounds under anoxic conditions in bulk water phase. The laboratory testing was conducted to establish the result. Throughout the experiment, the result for sulphur compounds in chemical transformation rate was found to be 0.00 mg SO4-S LAK , 0.01 mg SO3- S I/'h"1 and 0.03 mg S2O3-S l/h"1 while for nitrogen compounds it were found to be 0.01 mg NO3-N L'lKl and 0.00 mg NO2-N L h*1. The bio-chemical transformation rate for sulphur compounds are 0.38 mg SO4-S iA"1, 0.00 mg SO3-S L 'V and 0.67 mg S203-S iA"1. The value for nitrogen compounds are 1.62 mg NO3-N L^h"1 and 0.64 mg NO2-N L*!h . In sterilized wastewater the oxidation process is insignificant for chemical transformations. However, in active wastewater the oxidation process is significant for both chemical and biological transformations.
format Student Project
author Ramli, Nurul Ayu Fatma
author_facet Ramli, Nurul Ayu Fatma
author_sort Ramli, Nurul Ayu Fatma
title Chemical and biological oxidation of sulphur compounds under anoxic conditions / Nurul Ayu Fatma Ramli
title_short Chemical and biological oxidation of sulphur compounds under anoxic conditions / Nurul Ayu Fatma Ramli
title_full Chemical and biological oxidation of sulphur compounds under anoxic conditions / Nurul Ayu Fatma Ramli
title_fullStr Chemical and biological oxidation of sulphur compounds under anoxic conditions / Nurul Ayu Fatma Ramli
title_full_unstemmed Chemical and biological oxidation of sulphur compounds under anoxic conditions / Nurul Ayu Fatma Ramli
title_sort chemical and biological oxidation of sulphur compounds under anoxic conditions / nurul ayu fatma ramli
publishDate 2008
url https://ir.uitm.edu.my/id/eprint/49349/1/49349.PDF
https://ir.uitm.edu.my/id/eprint/49349/
_version_ 1707768635060125696
score 13.211869

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