Rangga Pradianto, Wahyu (2016) EFISIENSI PENGGUNAAN PURUN TIKUS (Eleocharis dulcis) PADA PENGOLAHAN LIMBAH AIR ASAM TAMBANG DENGAN SISTEM LAHAN BASAH BUATAN PT. BUKIT ASAM Tbk, UNIT BANKO BARAT. Other thesis, UPN "Veteran" Yogyakarta.
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Abstract
Kegiatan penambangan batubara menghasilkan limbah air asam tambang, menyebabkan pencemaran air permukaan maupun air tanah. Kandungan logam
berat besi (Fe) dan Mangan (Mn) yang terkandung pada air hasil kegiatan penambangan merupakan penyebab utama pada penurunan kualitas air. Penelitian
ini bertujuan untuk menghitung efisiensi pengolahan air asam tambang (AAT) dan membuat desain sistem lahan basah buatan meggunakan tanaman purun tikus
(Eleocharis dulci) untuk pengolahan air asam tambang di Timbunan Pit 1 Timur PT. Bukit Asam Unit Banko Barat.
Penelitian ini termasuk penelitian deskriptif analitik dengan metode kuantitatif. Metode yang digunakan dalam penelitian ini adalah metode survei,
metode eksperimen,metode uji laboratorium dan metode matematis. Penulis pertama – tama membuat 4 buah reaktor sistem lahan basah buatan dengan diisi
masing – masing 14, 8, 5, rumpun purun tikus dan tanpa purun tikus. Lalu dilakukan proses aklimatisasi terhadap tanaman purun tikus selama 7 hari. Sampel
AAT yang belum mengalami proses pengapuran diambil untuk dilakukan pengolahan menggunakan sistem lahan basah buatan dengan interval waktu tinggal
hari ke 1, 3, 5, 7 dan tahap akhir melakukan uji laboratorium terhadap kandungan
Fe dan Mn. Efisiensi pengolahan dihitung berdasarkan konsentrasi Fe dan Mn sebelum dan sesudah uji coba.
Hasil penelitian efisiensi penurunan logam berat Fe dan Mn dengan sistem lahan basah buatan terjadi pada Constructed Wetland (CW4) dengan 5 rumpun
purun tikus. Efisiensi Fe sebesar 59,58% dan Mn 43,75 %. Berdasarkan hasil efisiensi dan pengukuran debit air limpasan, curah hujan dan karakteristik AAT di
lapangan dapat di rancang desain lahan basah buatan dengan waktu tinggal efektif selama 3 hari dan kemiringan reaktor 1%. Reaktor ini di bagi menjadi 4 buah raktor dengan dimensi masing – masing reaktor 35,68 m x 5,3 m x 0,35 m dan jarak tanam pada masing – masing reaktor 10 x 10 cm. Media yang digunakan berupa tanah podsolik dicampur pupuk bokasi 1:1 setinggi 20 cm, pasir gravel
dengan tebal 5 cm kerikil sedang 5 cm dan tanaman purun tikus sebanyak 4.717 rumpun untuk 3 reaktor dan 1 reaktor sebagai kolam pengontrol.
Kata Kunci : lahan basah buatan (Constructed Wetland), batubara, Air Asam Tambang, Purun tikus (Eleoccharis dulcis), aklimatisasi
Coal mining activities produce acid mine waste water that causes pollution of surface and ground water. Heavy metal content of iron (Fe) and Manganese
(Mn) that are contained in the water mining activities is a major cause on the
decline of water quality. This study aims to calculate the efficiency of acid mine waste water treatment and create wetlands system using Purun Mice (Eleocharis
dulci) for acid mine waste water treatment in heaps of East Pit 1 PT. Bukit Asam West Bangko Unit.
This research was descriptive analytic quantitative methods. Methods used in this research are survey method, experimental methods, methods of laboratory
testing and mathematical methods. Writer first to make the 4 systems wetland artificially reactor, filled each for 14, 8, 5 clumps mice purun and without it. While
the sample not yet subjected to acidic process taken to do the wetlands artificially processing with intervals of time live day to 1, 3, 5, 7 and the final stage test againts Fe and Mn laboratory content. The processing efficiency is calculated based
on the concentrations of Fe and Mn before and after the trial. The results of the study of heavy metal removal efficiency of Fe and Mn with artificial wetlands system occurs in Constructed Wetland (CW4) with 5
clumps of rushes mice. The efficiency of 59.58% Fe and 43.75% Mn. Based on the results of measurements of water discharge efficiency and runoff, rainfall and the
characteristics of AAT in the field can be designed artificial wetlands designs with
live effective time for 3 days and reactor with a slope of 1%. The reactor is divided into 4 pieces of the reactor with the dimensions of each - each reactor 35.68 mx 5.3
mx 0.35 m and a spacing on each - each reactor 10 x 10 cm. M edia used in the form of land podsolic mixed fertilizers bokasi 1: 1 as high as 20 cm, sand gravel
with 5 cm thick gravel was 5 cm and plant as many as 4,717 clump purun rats for 3
reactor and the first reactor as a pool controller.
Keywords: Artificial wetlands (Constructed Wetland), coal, Acid Mine,
Purun mice (Eleoccharis dulcis), aklimatisasi
| Item Type: | Thesis (Other) |
|---|---|
| Subjek: | T Technology > TA Engineering (General). Civil engineering (General) |
| Divisions: | x. Faculty of Engineering, Science and Mathematics > School of Engineering Sciences |
| Depositing User: | Eko Yuli |
| Date Deposited: | 25 Jul 2016 07:41 |
| Last Modified: | 25 Jul 2016 07:41 |
| URI: | http://eprints.upnyk.ac.id/id/eprint/4927 |
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