EVALUASI PENGOLAHAN AKTIF AIR ASAM TAMBANG DI LATI MINE OPERATION
Acid Mine Drainage treatment is necessary to prevent negative impact to the environment. There are two common methods used for AMD treatment, active and passive treatment. Active treatment is usually done by adding basic materials, such as limestone. The purpose of this research is to evaluate ac...
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| Format: | Final Project |
| Language: | Indonesia |
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| Online Access: | https://digilib.itb.ac.id/gdl/view/35550 |
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| Institution: | Institut Teknologi Bandung |
| Language: | Indonesia |
| Summary: | Acid Mine Drainage treatment is necessary to prevent negative impact to the
environment. There are two common methods used for AMD treatment, active and
passive treatment. Active treatment is usually done by adding basic materials,
such as limestone. The purpose of this research is to evaluate active AMD
treatment in Lati Mine Operation own by Berau Coal, exclusively for WMP 5, 7,
12, and 18. The research is started with influent and effluent water characteristic
determination and comparison with government regulation. And then, we
evaluated AMD treatment process unit from observation data. The results showed
that influent pH value is around 4, far below regulation threshold value, around
6-9. Effluent pH value is also unconvincing with fluctuated PH value, especially
in night when effluent pH value could drop below 6. On the other hand, limestone
usage as a neutralizer in Lati site was already exceeded theoretical lime
requirement for AMD neutralization process. It was suggested that current
dimension of existing settling pond was not following the standard design. To
enhance treatment process performance, we needed to propose a new
comprehended unit design, such as adding rapid mixing to current design. Rapid
mixing unit is expected to homogenize limestone and to increase contact with
AMD. |
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