Profile of organic material source and environmental condition in the sediment of Badek and Mewek River, Malang, Indonesia

The sediment characterizations and water quality in the Badek and Mewek River are observed to know the origin of organic materials and environmental conditions in those rivers. The total carbon of the sediment was analyzed using a total carbon analyzer, while total nitrogen was measured by using the...

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Bibliographic Details
Published in:IOP conference series. Earth and environmental science 2020-05, Vol.493 (1), p.12005
Main Authors: Ulinuha, D, Andayani, S, Hertika, A M, Kilawati, Y
Format: Article
Language:English
Subjects:
Carbon
Carbon/nitrogen ratio
Chemical oxygen demand
Chromates
Dissolved oxygen
Environmental conditions
Fluvial sediments
Nitrogen
Organic materials
pH effects
Rivers
Sediments
Terrestrial environments
Water quality
Winkler method
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Summary:The sediment characterizations and water quality in the Badek and Mewek River are observed to know the origin of organic materials and environmental conditions in those rivers. The total carbon of the sediment was analyzed using a total carbon analyzer, while total nitrogen was measured by using the indophenol blue method. Total bacterial number in the sediment was estimated using the slow stirring method. Dissolved oxygen (DO) of water was analyzed using Winkler Method, chemical oxygen demand (COD) was analyzed using a dichromate-titrimetric method, and the pH of the water was measured using pH meter. The result showed a C/N ratio of around 20, indicating that organic materials in the Badek and Mewek River might be coming from the mixing of aquatic origin and terrestrial sources. Badek River showed a higher C/N ratio indicating a more substantial influence of terrestrial organic material compared to Mewek River. The total bacterial number in the sediment of Badek River might be related to the low water quality in that river.
ISSN:1755-1307
1755-1315
DOI:10.1088/1755-1315/493/1/012005