Characterisation Of Nitrate Stable Isotopes To Identify Nitrate Sources In Bukit Merah Reservoir, Perak

Characterisation Of Nitrate Stable Isotopes To Identify Nitrate Sources In Bukit Merah Reservoir, Perak

Bukit Merah Reservoir (BMR) is known as the oldest man-made lake in Malaysia has experienced sedimentation which threatens the storage capacity and may lead to other associated problems such as eutrophication. Excessive inputs of nitrogen in water catchment may cause deterioration of the water quali...

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Main Author: Yaccob, Nur Syahirah
Format: Thesis
Language:English
Published: 2019
Subjects:
T11.95-12.5 Industrial directories
Online Access:http://eprints.usm.my/48178/1/MSc%20NURSYAHIRAHYACCOB%2024.pdf
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spelling my-usm-ep.481782021-01-25T03:10:08Z Characterisation Of Nitrate Stable Isotopes To Identify Nitrate Sources In Bukit Merah Reservoir, Perak 2019-07 Yaccob, Nur Syahirah T11.95-12.5 Industrial directories Bukit Merah Reservoir (BMR) is known as the oldest man-made lake in Malaysia has experienced sedimentation which threatens the storage capacity and may lead to other associated problems such as eutrophication. Excessive inputs of nitrogen in water catchment may cause deterioration of the water quality. Hence, this study aims to determine the nitrate sources in water samples from BMR catchment by using nitrate stable isotopes, to assess the processes of nitrogen in the water samples and determine the local sources of goat manure, rain water, sediment and fertilizer for nitrate isotopic signature and C and N stable isotopes in sediment. The concentration of dissolved inorganic nitrogen species (NO3--N, NO2--N, NH3-N), total nitrogen (TN), phosphate (PO43-), total phosphorus (TP) and chlorophyll-a (Chl-a) were analysed using HACH DR2800 spectrophotometer. The nitrate stable isotopes (δ15N-NO3- and δ18O-NO3-) of water and the potential local sources of goat manure, sediments, rain water and fertilizer had been collected from BMR during wet and dry season and analyzed using a Trace Gas Pre-concentrator unit coupled to an isotope ratio mass spectrophotometry, (IRMS), Finnigan MAT-253. Water stable isotopes (δ2H-H2O and δ18O-H2O) in the water samples were analyzed using Picarro L2140-I isotope water analyzer. Meanwhile, carbon and nitrogen stable isotopes (δ13C and δ15N) were determined using EA-IRMS and C/ N ratio were also determined using CHN analyser in this study. 2019-07 Thesis http://eprints.usm.my/48178/ http://eprints.usm.my/48178/1/MSc%20NURSYAHIRAHYACCOB%2024.pdf application/pdf en public masters Universiti Sains Malaysia Pusat Pengajian Teknologi Industri
institution Universiti Sains Malaysia
collection USM Institutional Repository
language English
topic T11.95-12.5 Industrial directories
spellingShingle T11.95-12.5 Industrial directories
Yaccob, Nur Syahirah
Characterisation Of Nitrate Stable Isotopes To Identify Nitrate Sources In Bukit Merah Reservoir, Perak
description Bukit Merah Reservoir (BMR) is known as the oldest man-made lake in Malaysia has experienced sedimentation which threatens the storage capacity and may lead to other associated problems such as eutrophication. Excessive inputs of nitrogen in water catchment may cause deterioration of the water quality. Hence, this study aims to determine the nitrate sources in water samples from BMR catchment by using nitrate stable isotopes, to assess the processes of nitrogen in the water samples and determine the local sources of goat manure, rain water, sediment and fertilizer for nitrate isotopic signature and C and N stable isotopes in sediment. The concentration of dissolved inorganic nitrogen species (NO3--N, NO2--N, NH3-N), total nitrogen (TN), phosphate (PO43-), total phosphorus (TP) and chlorophyll-a (Chl-a) were analysed using HACH DR2800 spectrophotometer. The nitrate stable isotopes (δ15N-NO3- and δ18O-NO3-) of water and the potential local sources of goat manure, sediments, rain water and fertilizer had been collected from BMR during wet and dry season and analyzed using a Trace Gas Pre-concentrator unit coupled to an isotope ratio mass spectrophotometry, (IRMS), Finnigan MAT-253. Water stable isotopes (δ2H-H2O and δ18O-H2O) in the water samples were analyzed using Picarro L2140-I isotope water analyzer. Meanwhile, carbon and nitrogen stable isotopes (δ13C and δ15N) were determined using EA-IRMS and C/ N ratio were also determined using CHN analyser in this study.
format Thesis
qualification_level Master's degree
author Yaccob, Nur Syahirah
author_facet Yaccob, Nur Syahirah
author_sort Yaccob, Nur Syahirah
title Characterisation Of Nitrate Stable Isotopes To Identify Nitrate Sources In Bukit Merah Reservoir, Perak
title_short Characterisation Of Nitrate Stable Isotopes To Identify Nitrate Sources In Bukit Merah Reservoir, Perak
title_full Characterisation Of Nitrate Stable Isotopes To Identify Nitrate Sources In Bukit Merah Reservoir, Perak
title_fullStr Characterisation Of Nitrate Stable Isotopes To Identify Nitrate Sources In Bukit Merah Reservoir, Perak
title_full_unstemmed Characterisation Of Nitrate Stable Isotopes To Identify Nitrate Sources In Bukit Merah Reservoir, Perak
title_sort characterisation of nitrate stable isotopes to identify nitrate sources in bukit merah reservoir, perak
granting_institution Universiti Sains Malaysia
granting_department Pusat Pengajian Teknologi Industri
publishDate 2019
url http://eprints.usm.my/48178/1/MSc%20NURSYAHIRAHYACCOB%2024.pdf
_version_ 1747821894962249728

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