ORIGIN AND MECHANISMS OF HIGH SALINITY IN HOMBOLO DAM AND GROUNDWATER IN DODOMA MUNICIPALITY TANZANIA

  • Type: Project
  • Department: Water Resources Management
  • Project ID: WRM0018
  • Access Fee: ₦5,000 ($14)
  • Pages: 23 Pages
  • Format: Microsoft Word
  • Views: 231
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Abstract

The Hombolo dam (HD), in central Tanzania, is a shallow reservoir characterized by high salinity that limits its use for human activities. The origin of the salinity, mechanisms of reaching and concentrating in the dam remain unclear. These were assessed using hydrogeochemical facies, water type evolutions and mapping. The source of HD salinity was identified to be shallow groundwater (SG) and runoff from a seasonal floodplain with NaCl-rich lithological materails, along Little Kinyasungwe River that feeds the dam. The NaCl-rich lithological units, about 5–7 km upstream of the dam, were highly concentrated with NaCl to the extent that the local community was commercially separating table salt from them. The physicochemical parameters from these NaCl-rich lithological materials were well represented in HD and nearby groundwater sources, which suggests active water interactions. Water type evolution and surface hydrology assessments clearly showed that SG in the salty-floodplain was influenced by evaporation (ET) and was periodically carried to the HD. Clearly; HD water had high chemical similarity with the nearby SG. This agrees with previous studies that HD is partly fed by the local aquifer

ORIGIN AND MECHANISMS OF HIGH SALINITY IN HOMBOLO DAM AND GROUNDWATER IN DODOMA MUNICIPALITY TANZANIA
For more Info, call us on
+234 8130 686 500
or
+234 8093 423 853

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  • Type: Project
  • Department: Water Resources Management
  • Project ID: WRM0018
  • Access Fee: ₦5,000 ($14)
  • Pages: 23 Pages
  • Format: Microsoft Word
  • Views: 231
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    Details

    Type Project
    Department Water Resources Management
    Project ID WRM0018
    Fee ₦5,000 ($14)
    No of Pages 23 Pages
    Format Microsoft Word

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