Faisal, Suciaty (2015) Stabilisasi/Solidifikasi Tanah Tercemar Merkuri Simulasi Menggunakan Semen Portland dan Fly Ash. Undergraduate thesis, Institut Technology Sepuluh Nopember.
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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.
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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: | http://repository.its.ac.id/id/eprint/71303 |
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