Stabilisasi/Solidifikasi Tanah Tercemar Merkuri Simulasi Menggunakan Semen Portland dan Fly Ash

Faisal, Suciaty (2015) Stabilisasi/Solidifikasi Tanah Tercemar Merkuri Simulasi Menggunakan Semen Portland dan Fly Ash. Undergraduate thesis, Institut Technology Sepuluh Nopember.

[img]
Preview
Text
3311100060-Undergraduate Thesis.pdf - Published Version

Download (1MB) | Preview

Abstract

Tanah di daerah penambangan emas rakyat Kabupaten Kulon Progo telah tercemar merkuri. Salah satu teknologi remediasi tanah tercemar logam berat adalah metode Stabilisasi/Solidifikasi (S/S) menggunakan semen Portland dan fly ash. Penelitian ini bertujuan untuk menentukan kualitas produk S/S tanah tercemar merkuri dengan campuran binder semen Portland – fly ash. Sampel tanah merupakan sampel buatan dengan kadar merkuri 150 mg/kg. Benda uji dibuat pada cetakan kubus berukuran 5 cm. Variasi tahap pertama adalah komposisi semen Portand dan fly ash (dalam % berat) yaitu 100:0, 90:10, 80:20, 70:30, 60:40, 50:50. Pada tahap kedua ditambahkan tanah tercemar merkuri pada komposisi optimum binder, dengan variasi tanah : campuran optimum binder adalah 100:0, 90:10, 80:20, 70:30, 60:40, 50:50. Kemudian, dilakukan uji kuat tekan dan Toxicity Characteristic Leaching Procedure pada benda uji. Pada tahap pertama ditentukan komposisi optimum semen Portland – fly ash yaitu 50:50 dengan nilai kuat tekan 5560 ton/m2. Pada tahap kedua didapatkan nilai kuat tekan pada komposisi binder:tanah 50:50 yaitu 1140 ton/m2 dengan konsentrasi merkuri pada uji TCLP sebesar 0,0064 mg/L. Semua benda uji masih memenuhi baku mutu kuat tekan menurut US EPA yaitu 35 ton/m2 dan baku mutu TCLP-B menurut Peraturan Pemerintah nomor 101/2014 yaitu 0,05 mg/L. Berdasarkan hasil penelitian, semakin banyak penggunaan fly ash dan sampel tanah pada benda uji akan menurunkan kualitas produk S/S. ====================================================================================================== Soil in artisanal gold mining area in Kulon Progo Regency has been contaminated by mercury. One of technology of heavy metal contaminated soil remediations was Stabilization/Solidification (S/S) method using Portland cement and fly ash. This research aims to determine the quality of S/S of mercury contaminated-soil product with compounded binder of Portland cement-fly ash. The sample used in this experiment was artificial sample which contain mercury 150 mg/kg. Specimen was made using 5 cm-cube specimen mould. On the first step, the Portland cement and fly ash (in % weight) composition varies of 90:10, 80:20, 70:30, 60:40, and 50:50. On the second step, mercury contaminated-soil was added to the optimum Portland cement-fly ash composition. Hence, this composition varies of 100:0, 90:10, 80:20, 70:30, 60:40, and 50:50. Then, the specimen would be tested for its quality using compressive strength Test and Toxicity Characteristic Leaching Procedure (TCLP). Firstly, the optimum Portland cement-fly ash composition was determined as 50:50 compositions with its compressive strength result by 5560 ton/m2. Secondly, the compressive strength result of 50:50 binder:soil composition was observed as 1140 ton/m2 with mercury concentration on TCLP test of 0,0064 mg/L. On the final step, all specimens were still able to meet compressive strength standard according to US EPA of 35 ton/m2 and TCLP-B standard according to Government Regulation number 101/2014 of 0,05mg/L. The increasing amount of fly ash and soil sample used in specimen would worsen the quality of S/S product.

Item Type: Thesis (Undergraduate)
Additional Information: RSL 628.55 Fai s
Uncontrolled Keywords: fly ash, merkuri, semen Portland, stabilisasi/solidifikasi, tanah
Subjects: T Technology > TD Environmental technology. Sanitary engineering > TD427.F58 Fly ash
Divisions: Faculty of Civil, Environmental, and Geo Engineering > Environmental Engineering > 25201-(S1) Undergraduate Theses
Depositing User: Mr. Tondo Indra Nyata
Date Deposited: 21 Oct 2019 08:28
Last Modified: 21 Oct 2019 08:28
URI: https://repository.its.ac.id/id/eprint/71303

Actions (login required)

View Item View Item