Herlambang, Dicky (2022) PENGOLAHAN AIR TERKONTAMINASI FLUIDA PANAS BUMI UNTUK KEBUTUHAN AIR DOMESTIK DI DUSUN DARUM, DESA CANDI, KECAMATAN BANDUNGAN, KABUPATEN SEMARANG, PROVINSI JAWA TENGAH. Other thesis, UPN 'Veteran" Yogyakarta.
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Abstract
xi
PENGOLAHAN AIR TERKONTAMINASI FLUIDA PANAS BUMI UNTUK
KEBUTUHAN AIR DOMESTIK DI DUSUN DARUM, DESA CANDI,
KECAMATAN BANDUNGAN, KABUPATEN SEMARANG, PROVINSI JAWA
TENGAH
Oleh:
Dicky Herlambang
114170073
INTISARI
Daerah penelitian merupakan daerah dengan manifestasi panas bumi berupa mata
air panas, fumarol dan batuan teralterasi. Penduduk di sekitar daerah penelitian dalam
upaya memenuhi kebutuhan air domestik mengambil dari sumber mata air yang berada
di sekitar area panas bumi. Secara fisik, telah terjadi indikasi adanya penurunan kualitas
air yaitu, air berbau, berasa seperti besi, dan berwarna. Penelitian dilakukan di Dusun
Darum, Desa Candi, Kecamatan Bandungan, Kabupaten Semarang, Provinsi Jawa
Tengah. Tujuan penelitian ini adalah untuk mengetahui karakteristik panas bumi dan
dampaknya terhadap sumber air di sekitarnya untuk pemenuhan kebutuhan air domestik
di Dusun Darum serta mengetahui arahan pengolahan air untuk pemenuhan kebutuhan
domestik di lokasi penelitian.
Metode yang digunakan dalam penelitian ini yaitu survei dan pemetaan lapangan,
uji laboratorium, analisis dan uji coba unit pengolahan. Uji laboratorium berupa uji
geokimia air. Metode analisis untuk mengetahui karakteristik mata air panas dan
dampaknya terhadap mata air di sekitarnya. Analisis karakteristik mata air panas dengan
metode analisis geokimia air menggunakan diagram segitiga Cl-HCO3-SO4,
Geothermometer Na/K, dan mengetahui kesetimbangan fluida air panas bumi
menggunakan metode diagram Na-K-Mg. Hasil analisis karakteristik mata air panas
kemudian dikorelasikan dengan data kualitas mata air di sekitar untuk mengetahui
dampak fluida panas bumi terhadap air. Kemudian dilakukan analisis untuk mengetahui
status mutu air dengan metode indeks pencemaran.
Hasil penelitian karakteristik mata air panas bumi memiliki tipe air sulfat (SO4)
yang menunjukkan zona upflow dengan suhu 350°C. Kesetimbangan fluida berada pada
zona immature water. Korelasi keberadaan aktivitas panas bumi terhadap air yaitu
adanya logam-logam terlarut dari batuan ke air yaitu Fe dan Mn yang dipengaruhi
karena suhu yang tinggi sehingga mempercepat pelarutan. Hasil analisis kualitas air
menunjukkan keadaan status mutu air tercemar ringan sehingga perlu pengolahan
sebelum dikonsumsi. Unit pengolahan yang dipakai adalah aerasi dengan tray aerator
dan filtrasi. Hasil uji coba unit aerasi-filtrasi menunjukkan efektivitas penurunan Fe dan
Mn sebesar 87,90% dan 87,08%. Arahan pengolahan air dilakukan dengan membuat
unit aerasi filtrasi dengan dimensi masing-masing unit yaitu : tray aerator ( lebar 88 cm
dan panjang 176 cm dengan masing-masing tray berjarak 30 cm sebanyak 4 tray) dan
filtrasi ( lebar 77 cm dan panjang 154 cm dengan tinggi media filter mangan zeolit 60
cm dan penyangga 10 cm).
Kata Kunci: Fluida Panas Bumi; Mata Air; Kebutuhan Air Dosmestik; Pengolahan air
Tray Aerator; Filtrasi; Fe (besi); Mn (mangan)
xii
WATER TREATMENT OF WATER CONTAMINATED WITH GEOTHERMAL
FLUIDS FOR DOMESTIC WATER NEEDS IN DARUM HAMLET, CANDI
VILLAGE, BANDUNGAN DISTRICT, SEMARANG REGENCY, CENTRAL
JAVA
Dicky Herlambang
114170073
ABSTRACT
The study area is an area with geothermal manifestations in the form of hot springs,
fumaroles and rock alterations. Residents around the research area in an effort to meet
domestic water needs take from springs located around the geothermal area. Physically,
there have been indications of a decrease in water quality which the water has smell,
tastes like iron, and water has color. The research was conducted in Darum Hamlet,
Candi Village, Bandungan District, Semarang Regency, Central Java. The purpose of
this study is to determine the characteristics of geothermal heat and its impact on
surrounding water sources to use domestic water needs in Darum Hamlet, also
determine water treatment to meet domestic needs at the research site. .
The methods used in this study are field surveys and mapping, laboratory tests,
analysis and trials of processing units. Laboratory tests in the form of water
geochemical tests. Analysis method to find out the characteristics of hot springs and
their effect on the springs. Analysis of hot spring characteristics by water geochemical
analysis method using the Cl-HCO3-SO4 triangle diagram, Na /K Geothermometer, and
knowing the fluid equilibrium of geothermal water using the Na-K-Mg diagram method.
The results of the analysis of the characteristics of hot springs are then correlated with
the quality data of the surrounding springs to determine the influence of geothermal
fluid on water. Then an analysis is carried out to determine the status of water quality
by the pollution index method.
The results of the study on the characteristics of geothermal springs have a sulphate
water type (SO4) which shows an up-flow zone with a temperature of 350°C. The
equilibrium of the fluid is in the immature water zone. The correlation of the existence
of geothermal activity to water is the presence of dissolved metals from rock to water,
namely Fe and Mn which are influenced due to high temperatures so as to accelerate
dissolution. The results of the water quality analysis show the state of the water quality
status is lightly polluted so that it needs to be treated before consumption. The
processing unit used is aeration with tray aerator and filtration. The results of the
aeration-filtration unit trial showed the effectiveness of decreasing Fe and Mn by
87.90% and 87.08%. Water treatment are carried out by making filtration aeration units
with the dimensions of each unit, namely: tray aerator (width 88 cm and length 176 cm
with each tray spaced 30 cm as many as 4 trays) and filtration (width 77 cm and length
154 cm with a height of manganese zeolite filter media of 60 cm and a support of 10
cm).
Keywords: Geothermal Fluids; Springs; Dosmestic Water Needs; Water Treatment;
Tray Aerator; Filtration; Fe (iron); Mn (manganese)
| Item Type: | Thesis (Other) |
|---|---|
| Uncontrolled Keywords: | Geothermal Fluids; Springs; Dosmestic Water Needs; Water Treatment; Tray Aerator; Filtration; Fe (iron); Mn (manganese) |
| Subjects: | Z Bibliography. Library Science. Information Resources > ZA Information resources |
| Divisions: | Faculty of Engineering, Science and Mathematics > School of Engineering Sciences |
| Depositing User: | Eko Yuli |
| Date Deposited: | 27 Oct 2022 02:12 |
| Last Modified: | 27 Oct 2022 02:12 |
| URI: | http://eprints.upnyk.ac.id/id/eprint/31504 |
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