Study on the Quality of Water in Some Streams of Cauvery River
The quality of water in four streams of Cauvery River in Mandya District, where many small scale sugar and brewery distilleries are located, was analysed. Sampling was carried out from four streams designated as station 1 (upstream of effluent discharge point), station 2 (effluent discharge point) a...
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Wiley
2008-01-01
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| Series: | E-Journal of Chemistry |
| Online Access: | http://dx.doi.org/10.1155/2008/234563 |
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| author | Abida Begum Harikrishnarai |
| author_facet | Abida Begum Harikrishnarai |
| author_sort | Abida Begum |
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| description | The quality of water in four streams of Cauvery River in Mandya District, where many small scale sugar and brewery distilleries are located, was analysed. Sampling was carried out from four streams designated as station 1 (upstream of effluent discharge point), station 2 (effluent discharge point) and station 3 (downstream of effluent discharge) station 4 (fresh water stream) to assess the impact of effluent on the water quality. The river water composition is increasingly dominated by Na and Cl in the downstream region of the river, indicating the influence of airborne salts with oceanic affinities. Significant spatial variation was observed in water level, transparency, turbidity, depth, dissolved oxygen, colour, biochemical oxygen demand, nitrate, nitrite and total hydrocarbon among the physiochemical parameters of the study stations. A posteriori test revealed that station 2 & 3 were the cause of the significant difference. The dissolved oxygen level in stations 2 & 3 was lower than 5.0mg/L, which is recommended minimum allowable limit for aquatic life. About 7 rotifer species in large amount recorded in this study were encountered in station 1, 7 in station 2 & 3 while 12 species in station 4. The overall density of rotifers in the four stations was significantly different. A posteriori comparison revealed that station 2 & 3 are the cause of the significant difference. The Branchionus angularis rotifers, which dominated the community, were found to tolerate the effluent effect in station 2&3, and showed remarkable recovery in the downstream station 4. Low faunal diversity and negative impact on the biotic and abiotic environment was experienced in station 2 & 3 throughout the duration of sampling because of the brewery effluent discharged directly into these two Streams. |
| format | Article |
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| institution | OA Journals |
| issn | 0973-4945 2090-9810 |
| language | English |
| publishDate | 2008-01-01 |
| publisher | Wiley |
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| series | E-Journal of Chemistry |
| spelling | doaj-art-74f279256da34df2b497776e804b4bb52025-08-20T02:06:58ZengWileyE-Journal of Chemistry0973-49452090-98102008-01-015237738410.1155/2008/234563Study on the Quality of Water in Some Streams of Cauvery RiverAbida Begum0Harikrishnarai1Department of Chemistry, P.E.S School of Engineering, Bangalore- 560 100 Shirdi Sai Engg. College, Bangalore. Visveshwaraya Technological University, Belgaum, IndiaDepartment of Chemistry, P.E.S School of Engineering, Bangalore- 560 100 Shirdi Sai Engg. College, Bangalore. Visveshwaraya Technological University, Belgaum, IndiaThe quality of water in four streams of Cauvery River in Mandya District, where many small scale sugar and brewery distilleries are located, was analysed. Sampling was carried out from four streams designated as station 1 (upstream of effluent discharge point), station 2 (effluent discharge point) and station 3 (downstream of effluent discharge) station 4 (fresh water stream) to assess the impact of effluent on the water quality. The river water composition is increasingly dominated by Na and Cl in the downstream region of the river, indicating the influence of airborne salts with oceanic affinities. Significant spatial variation was observed in water level, transparency, turbidity, depth, dissolved oxygen, colour, biochemical oxygen demand, nitrate, nitrite and total hydrocarbon among the physiochemical parameters of the study stations. A posteriori test revealed that station 2 & 3 were the cause of the significant difference. The dissolved oxygen level in stations 2 & 3 was lower than 5.0mg/L, which is recommended minimum allowable limit for aquatic life. About 7 rotifer species in large amount recorded in this study were encountered in station 1, 7 in station 2 & 3 while 12 species in station 4. The overall density of rotifers in the four stations was significantly different. A posteriori comparison revealed that station 2 & 3 are the cause of the significant difference. The Branchionus angularis rotifers, which dominated the community, were found to tolerate the effluent effect in station 2&3, and showed remarkable recovery in the downstream station 4. Low faunal diversity and negative impact on the biotic and abiotic environment was experienced in station 2 & 3 throughout the duration of sampling because of the brewery effluent discharged directly into these two Streams.http://dx.doi.org/10.1155/2008/234563 |
| spellingShingle | Abida Begum Harikrishnarai Study on the Quality of Water in Some Streams of Cauvery River E-Journal of Chemistry |
| title | Study on the Quality of Water in Some Streams of Cauvery River |
| title_full | Study on the Quality of Water in Some Streams of Cauvery River |
| title_fullStr | Study on the Quality of Water in Some Streams of Cauvery River |
| title_full_unstemmed | Study on the Quality of Water in Some Streams of Cauvery River |
| title_short | Study on the Quality of Water in Some Streams of Cauvery River |
| title_sort | study on the quality of water in some streams of cauvery river |
| url | http://dx.doi.org/10.1155/2008/234563 |
| work_keys_str_mv | AT abidabegum studyonthequalityofwaterinsomestreamsofcauveryriver AT harikrishnarai studyonthequalityofwaterinsomestreamsofcauveryriver |