FAUZIA, NAUFALIN AKBAR (2024) KAJIAN EFEKTIVITAS PENGOLAHAN AIR RETENTION POND MENGGUNAKAN METODE FILTRASI DI PT PLN NUSANTARA POWER UP REMBANG DESA LERAN, KECAMATAN SLUKE, KABUPATEN REMBANG, PROVINSI JAWA TENGAH. Other thesis, UPN Veteran Yogyakarta.
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Abstract
The retention pond at PT PLN Nusantara Power UP Rembang is a place to
collect rainwater, drainage water in the company, as well as the filtering results from
the Circulating Water Pump (CWP) unit, which aren’t yet suitable for use. The salinity
parameter comes from the results of seawater filtration in the CWP unit, Chemical
Oxygen Demand (COD) comes from the canteen water which channel drainage, and
oil and grease come from the main unit drainage which carries oil spills. The purpose
of the research consists of determine the concentration of salinity, COD, oil and grease
parameters at the retention pond outlet; determine the ability of the filtration unit with
variations time based on its effectiveness value; analyze the effect of time variations
on decreasing of related parameters; and recommendations for management direction
to be able to support water needs as class II raw water, especially for irrigating crops.
Data collection consists of using direct observation methods and secondary
data analysis. The retention pond water sampling process was carried out using the
grab sampling method. The analysis and evaluation method is carried out using
mathematical regression analysis, adsorption capacity calculation and descriptive
analysis. Experimental tests was carried out on a laboratory scale with activated
carbon and active zeolite filtration units with time variations, around 0 hour after
contact with filter media (2 minutes); 1 hour; 2 hours; 3 hours; 4 hours; 5 hours; and
6 hours.
The results from laboratory tests on the water quality of the retention pond
outlet show a salinity level of 13‰, a COD level of 784 mg/L, an oil and grease content
of 2 mg/L, which still exceeds the quality standard limit. The activated carbon and
activated zeolite media filtration method with time variations can process the related
parameters with a reduction effectiveness value range of 53,846%-89,158% and an
optimal residence time in the range of 3-6 hours. A simple linear regression test shows
the effect of time variations on decreasing salinity levels by 92,6%; levels of COD by
25,4%; oil and grease content by 46,51%. The recommendation of management
improvement approach is filtration with activated carbon and activated zeolite media
a design dimensions unit 89cm×178cm×230cm with an inlet discharge of 0,174459
L/s, and totaling 5 units to achieve the efficiency target.
Keywords: retention pond, filtration, salinity, COD, oil and grease
| Item Type: | Thesis (Other) |
|---|---|
| Uncontrolled Keywords: | retention pond, filtrasi, salinitas, COD, minyak lemak |
| Subjects: | T Technology > TA Engineering (General). Civil engineering (General) |
| Divisions: | Faculty of Engineering, Science and Mathematics > School of Civil Engineering and the Environment |
| Depositing User: | A.Md.SI Indah Lestari Wulan Aji |
| Date Deposited: | 24 Jul 2024 04:18 |
| Last Modified: | 24 Jul 2024 04:18 |
| URI: | http://eprints.upnyk.ac.id/id/eprint/40387 |
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