Uji Kemampuan Permeable Reactive Barrier (PRB) Menggunakan Kombinasi Zeolit dan Perekat Semen Dalam Upaya Remediasi Air Tercemar Logam Berat Timbal (Pb)

Naufaldy, Hananda Dzaki (2026) Uji Kemampuan Permeable Reactive Barrier (PRB) Menggunakan Kombinasi Zeolit dan Perekat Semen Dalam Upaya Remediasi Air Tercemar Logam Berat Timbal (Pb). Other thesis, Institut Teknologi Sepuluh Nopember.

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Abstract

Kontribusi dari air tanah sangat vital, kurang lebih sebanyak dua miliar orang bergantung langsung pada akuifer untuk air minum. Kontaminasi logam berat Pb pada air tanah telah menjadi semakin serius seiring dengan perkembangan industri. Logam berat Pb mampu menyebabkan masalah kesehatan serius bagi manusia maupun lingkungan. Penelitian ini bertujuan untuk menganalisis pengaruh modifikasi zeolit pada PRB dengan perekat semen dalam upaya remediasi air tercemar logam berat timbal (Pb) dan juga untuk menganalisis pengaruh komposisi PRB untuk meremediasi air tercemar logam berat Pb dan ketahanan uji kuat tekan PRB. Variasi komposisi perekat pada penelitian pendahuluan (5%, 10%, 15%, 20%, 30%, 40%, dan 50%) serta jenis bahan reaktif (zeolit alami dan zeolit termodifikasi) digunakan untuk menganalisis pengaruhnya terhadap kinerja PRB. Metode penelitian ini perlu beberapa persiapan seperti persiapan air tercemar Pb buatan, persiapan reaktor 15x15x15 cm serta persiapan alat dan bahan. Penelitian pendahuluan mencakup pembuatan PRB dari zeolit alami dan zeolit termodifikasi yang ditambahkan dengan perekat semen. Parameter yang akan diuji adalah kandungan Pb pada air sampel sebagai parameter utama, TCLP, pH, suhu, porositas, konduktivitas hidrolik dan uji tekan. Kesimpulan dari penelitian ini adalah komposisi PRB yang tidak mengalami kerusakan fisik dan tahan terhadap perendaman air selama 6 hari adalah komposisi 15%, 20%, dan 30% semen, berlaku pada bahan reaktif zeolit alami dan juga zeolit termodifikasi. PRB berbahan zeolit termodifikasi yang dikombinasikan dengan semen memiliki efisiensi penyisihan Pb sebesar 99,5%, sedangkan PRB berbahan zeolit alami yang dikombinasikan dengan semen memiliki efisiensi penyisihan Pb sebesar 95,5%. PRB berbahan zeolit termodifikasi akan menghasilkan efluen dengan pH rata rata sebesar 9,18 nilai pH tersebut lebih besar jika dibandingkan dengan efluen PRB berbahan zeolit alami yang hanya memiliki nilai pH rata rata sebesar 8,75. PRB dengan komposisi bahan perekat yang lebih banyak daripada bahan reaktif akan memiliki kuat tekan yang lebih besar. Jenis bahan reaktif dan komposisi terbaik adalah PRB berbahan reaktif zeolit termodifikasi dengan komposisi 20% semen.
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Groundwater is a vital freshwater resource, with approximately two billion people worldwide directly relying on aquifers for drinking water supply. However, groundwater contamination by lead (Pb) has become increasingly severe due to rapid industrial development. Lead is a toxic heavy metal that poses significant risks to both human health and the environment. This study aims to evaluate the effect of zeolite modification in cement-bonded permeable reactive barriers (PRBs) for the remediation of Pb-contaminated water, as well as to assess the influence of PRB composition on Pb removal efficiency and compressive strength performance. The study employed variations in cement binder content (5%, 10%, 15%, 20%, 30%, 40%, and 50%) and reactive media types (natural zeolite and modified zeolite) to investigate their effects on PRB performance. This research method requires several preparations, such as the preparation of artificial Pb-contaminated water, the preparation of a 15x15x15 cm reactor, and the preparation of tools and materials. Preliminary research includes the manufacture of PRBs from natural zeolite and modified zeolite with added cement adhesive. The parameters to be tested are the Pb content in the water sample as the main parameter, TCLP, pH, temperature, porosity, hydraulic conductivity, and compression testing. The conclusion of this study is that the PRB composition that did not experience physical damage and was resistant to water immersion for 6 days was a composition of 15%, 20%, and 30% cement, applicable to natural zeolite reactive materials and also modified zeolite. PRB made from modified zeolite combined with cement has a Pb removal efficiency of 99.5%, while PRB made from natural zeolite combined with cement has a Pb removal efficiency of 95.5%. PRB made from modified zeolite produces effluent with an average pH of 9.18, which is higher than the effluent from PRB made from natural zeolite, which only has an average pH of 8.75. PRB with a higher composition of adhesive material than reactive material will have greater compressive strength. The best type of reactive material and composition is PRB made from modified zeolite reactive material with a composition of 20% cement.

Item Type:	Thesis (Other)
Uncontrolled Keywords:	Adsorpsi, Permeable Reactive Barrier (PRB), Timbal (Pb), Zeolit. Adsorption, Lead (Pb), Permeable Reactive Barrier (PRB), Zeolite
Subjects:	T Technology > TD Environmental technology. Sanitary engineering T Technology > TD Environmental technology. Sanitary engineering > TD420 Water pollution T Technology > TD Environmental technology. Sanitary engineering > TD430 Water--Purification.
Divisions:	Faculty of Civil, Planning, and Geo Engineering (CIVPLAN) > Environmental Engineering > 25201-(S1) Undergraduate Thesis
Depositing User:	Hananda Dzaki Naufaldy
Date Deposited:	27 Jan 2026 07:37
Last Modified:	27 Jan 2026 07:37
URI:	http://repository.its.ac.id/id/eprint/130456

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