Kinerja Tanaman Terapung Dalam Sistem Hybrid Constructed Wetland Kombinasi Dengan Microbial Fuel Cell (Cw-Mfc) Untuk Mengolah Air Limbah Domestik

Wahyuni, Afrinda Dwi (2025) Kinerja Tanaman Terapung Dalam Sistem Hybrid Constructed Wetland Kombinasi Dengan Microbial Fuel Cell (Cw-Mfc) Untuk Mengolah Air Limbah Domestik. Masters thesis, Institut Teknologi Sepuluh Nopember.

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Abstract

Pengelolaan air limbah domestik secara berkelanjutan menjadi tantangan penting di tengah krisis air dan kebutuhan energi alternatif. Sistem Constructed Wetland–Microbial Fuel Cell (CW-MFC) merupakan pendekatan inovatif yang memadukan proses fitoremediasi dengan produksi bioelektrisitas menggunakan mikroorganisme elektroaktif. Penelitian ini bertujuan mengevaluasi kinerja CW MFC yang mengintegrasikan tanaman terapung Pistia stratiotes dan Eichhornia crassipes dengan bakteri Lactobacillus plantarum dalam menurunkan beban pencemar air limbah domestik serta menghasilkan energi listrik selama 18 hari operasi. Pengujian dilakukan pada berbagai konfigurasi reaktor dengan variasi jenis tanaman, konsentrasi bakteri, dan jenis elektroda (grafit dan Ni-Zn). Hasil penelitian menunjukkan bahwa Eichhornia crassipes lebih efektif dibanding Pistia stratiotes dalam meningkatkan efisiensi pengolahan air limbah domestik, dengan efisiensi penurunan COD hingga 85%, BOD₅ hingga 73%, ammonia hingga 82%, dan TSS hingga 58% dengan daya listrik maksimum dicapai oleh reaktor dengan E. Crassipes sebesar 1032,12 mW/m² pada siang hari. Namun, seluruh perlakuan menunjukkan penurunan densitas daya listrik pada malam hari akibat berkurangnya aktivitas fotosintesis dan suplai oksigen dari tanaman. Secara keseluruhan, penelitian ini menunjukkan bahwa integrasi tanaman air dan mikroba elektroaktif dalam sistem CW-MFC mampu meningkatkan efisiensi pengolahan air limbah domestik sekaligus menghasilkan listrik secara simultan. Temuan ini menegaskan potensi CW-MFC sebagai teknologi ramah lingkungan untuk mendukung pengelolaan limbah dan transisi menuju energi hijau berkelanjutan
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Sustainable domestic wastewater management is a crucial challenge amidst the water crisis and the need for alternative energy. The Constructed Wetland–Microbial Fuel Cell (CW-MFC) system is an innovative approach that combines phytoremediation with bioelectricity production using electroactive microorganisms. This study aims to evaluate the performance of CW-MFC, which integrates floating plants Pistia stratiotes and Eichhornia crassipes with Lactobacillus plantarum bacteria, in reducing the pollutant load of domestic wastewater and generating electrical energy for 18 days of operation. Tests were conducted on various reactor configurations with varying plant types, bacterial concentrations, and electrode types (graphite and Ni-Zn). The results showed that Eichhornia crassipes was more effective than Pistia stratiotes in increasing the efficiency of domestic wastewater treatment, with COD reduction efficiency of up to 85%, BOD₅ of up to 73%, ammonia of up to 82%, and TSS of up to 58% with maximum electrical power achieved by the reactor with E. Crassipes of 1032.12 mW/m² during the day. However, all treatments showed a decrease in electrical power density at night due to reduced photosynthetic activity and oxygen supply from plants. Overall, this study shows that the integration of aquatic plants and electroactive microbes in the CW-MFC system is able to increase the efficiency of domestic wastewater treatment while simultaneously generating electricity. These findings confirm the potential of CW-MFC as an environmentally friendly technology to support waste management and the transition to sustainable green energy.

Item Type:	Thesis (Masters)
Uncontrolled Keywords:	Fitoremediasi, Limbah Domestik, CW-MFC Phytoremediation, Domestic Wastewater, CW-MFC
Subjects:	T Technology > TD Environmental technology. Sanitary engineering > TD192.75 Phytoremediation. T Technology > TD Environmental technology. Sanitary engineering > TD420 Water pollution T Technology > TD Environmental technology. Sanitary engineering > TD433 Water treatment plants
Divisions:	Faculty of Civil, Planning, and Geo Engineering (CIVPLAN) > Environmental Engineering > 25101-(S2) Master Thesis
Depositing User:	Afrinda Dwi Wahyuni
Date Deposited:	22 Jul 2025 04:15
Last Modified:	22 Jul 2025 04:15
URI:	http://repository.its.ac.id/id/eprint/120451

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