ANALISIS PENGARUH WAKTU TINGGAL PADA DESAIN FREE WATER SURFACE (FWS) CONSTRUCTED WETLAND PADA SUNGAI PENJEMURAN

HAFIZHAN, RIZKI and Wardhani, Puteri Kusuma (2025) ANALISIS PENGARUH WAKTU TINGGAL PADA DESAIN FREE WATER SURFACE (FWS) CONSTRUCTED WETLAND PADA SUNGAI PENJEMURAN. Undergraduate thesis, Sriwijaya University.

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Abstract

Water contamination in the Penjemuran River, caused by nearby dumping waste land, has limited its suitability for aquaculture. This research evaluates the performance of a Free Water Surface (FWS) constructed wetland system in enhancing water quality by testing different hydraulic retention times. The experiment utilized a lab-scale setup with sand and gravel as the substrate and Eichhornia crassipes (water hyacinth) as the vegetation, with retention periods of 12, 24, 48, and 72 hours. Findings show that longer retention times significantly improve the removal of pollutants. At 72 hours, reductions of 86.05% in BOD, 66.53% in COD, 88.06% in TSS, and 47.14% in ammonia were achieved. The pH levels stayed consistent, meeting Class 2 water quality standards under Government Regulation No. 22 of 2021. However, COD levels slightly surpassed the allowable limit, indicating a need for further refinement. The study concludes that the constructed wetland system is effective in improving the Penjemuran River's water quality, with an optimal retention time of 48–72 hours. These results provide valuable insights for scaling up the system to promote environmental sustainability and aquaculture growth.

Item Type:	Thesis (Undergraduate)
Uncontrolled Keywords:	Constructed Wetland, Free Water Surface, Retention Time, Penjemuran River, Water Quality
Subjects:	T Technology > TA Engineering (General). Civil engineering (General) > TA170-171 Environmental engineering
Divisions:	03-Faculty of Engineering > 22201-Civil Engineering (S1)
Depositing User:	Rizki Hafizhan
Date Deposited:	18 Mar 2025 02:31
Last Modified:	18 Mar 2025 02:31
URI:	http://repository.unsri.ac.id/id/eprint/169048

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