A comparative study on dispersivity of Arsenic among Surma, Sari and Volaganj sand
Transport mechanism of Arsenic (As) through the Surma, Sari and Volaganj sand is the prime concern of this study. Three column leaching tests were performed to find the dispersivity property of As. Numerous physical properties of these sand samples were determined and it shows Volaganj sand is mo...
| Հիմնական հեղինակներ: | , , |
|---|---|
| Ձևաչափ: | Հոդված |
| Հրապարակվել է: |
BRAC University
2012
|
| Խորագրեր: | |
| Առցանց հասանելիություն: | http://hdl.handle.net/10361/1802 |
| id |
10361-1802 |
|---|---|
| record_format |
dspace |
| spelling |
10361-18022019-09-29T05:48:16Z A comparative study on dispersivity of Arsenic among Surma, Sari and Volaganj sand Islam, Shriful Rahman, M.S. Das, R.K. Soil pollution Arsenic movement Dispersion Breakthrough curve Transport mechanism of Arsenic (As) through the Surma, Sari and Volaganj sand is the prime concern of this study. Three column leaching tests were performed to find the dispersivity property of As. Numerous physical properties of these sand samples were determined and it shows Volaganj sand is most permeable. From the collected data experimental and theoretical breakthrough curve (BTC) were prepared and compared with each other. The value of dispersion coefficient and Index of dispersion were calculated. Dispersion coefficient (773.763cm2/min) and index of dispersion (844.3cm2/min) was higher for Surma sand. The leaching rate was found higher for higher pore water velocity of the Volaganj sand. The study also reveals that there is a significant difference between theoretical and experimental breakthrough curve. So not only convection/dispersion but also other processes such as adsorption, reaction with other compound are associated with the movement of arsenic through the sand medium. 2012-05-02T10:11:40Z 2012-05-02T10:11:40Z 2011 Article http://hdl.handle.net/10361/1802 BRAC University Journal, BRAC University;Vol. 8, No. 1 & 2, 2011, p. 23-30 application/pdf BRAC University |
| institution |
Brac University |
| collection |
Institutional Repository |
| topic |
Soil pollution Arsenic movement Dispersion Breakthrough curve |
| spellingShingle |
Soil pollution Arsenic movement Dispersion Breakthrough curve Islam, Shriful Rahman, M.S. Das, R.K. A comparative study on dispersivity of Arsenic among Surma, Sari and Volaganj sand |
| description |
Transport mechanism of Arsenic (As) through the Surma, Sari and Volaganj sand is the prime
concern of this study. Three column leaching tests were performed to find the dispersivity property
of As. Numerous physical properties of these sand samples were determined and it shows Volaganj
sand is most permeable. From the collected data experimental and theoretical breakthrough curve
(BTC) were prepared and compared with each other. The value of dispersion coefficient and Index
of dispersion were calculated. Dispersion coefficient (773.763cm2/min) and index of dispersion
(844.3cm2/min) was higher for Surma sand. The leaching rate was found higher for higher pore
water velocity of the Volaganj sand. The study also reveals that there is a significant difference
between theoretical and experimental breakthrough curve. So not only convection/dispersion but
also other processes such as adsorption, reaction with other compound are associated with the
movement of arsenic through the sand medium. |
| format |
Article |
| author |
Islam, Shriful Rahman, M.S. Das, R.K. |
| author_facet |
Islam, Shriful Rahman, M.S. Das, R.K. |
| author_sort |
Islam, Shriful |
| title |
A comparative study on dispersivity of Arsenic among Surma, Sari and Volaganj sand |
| title_short |
A comparative study on dispersivity of Arsenic among Surma, Sari and Volaganj sand |
| title_full |
A comparative study on dispersivity of Arsenic among Surma, Sari and Volaganj sand |
| title_fullStr |
A comparative study on dispersivity of Arsenic among Surma, Sari and Volaganj sand |
| title_full_unstemmed |
A comparative study on dispersivity of Arsenic among Surma, Sari and Volaganj sand |
| title_sort |
comparative study on dispersivity of arsenic among surma, sari and volaganj sand |
| publisher |
BRAC University |
| publishDate |
2012 |
| url |
http://hdl.handle.net/10361/1802 |
| work_keys_str_mv |
AT islamshriful acomparativestudyondispersivityofarsenicamongsurmasariandvolaganjsand AT rahmanms acomparativestudyondispersivityofarsenicamongsurmasariandvolaganjsand AT dasrk acomparativestudyondispersivityofarsenicamongsurmasariandvolaganjsand AT islamshriful comparativestudyondispersivityofarsenicamongsurmasariandvolaganjsand AT rahmanms comparativestudyondispersivityofarsenicamongsurmasariandvolaganjsand AT dasrk comparativestudyondispersivityofarsenicamongsurmasariandvolaganjsand |
| _version_ |
1814309576173944832 |