Putri, Laksmisari Rakhma (2014) Pengaruh penambahan clukosa sebagai co-substrat dalam pengolahan limbah minyak solar menggunakan sistem high rate alga reactor (HRAR). Undergraduate thesis, Institut Teknologi Sepuluh Nopember.
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Abstract
Kandungan minyak dalam air limbah umumnya relatif
sulit untuk diuraikan oleh mikroorganisme pada pengolahan air
limbah secara biologis. Sistem alga dalam High Rate Alga
Reactor (HRAR) telah banyak dikembangkan dan digunakan
sebagai pengolah air limbah domestik dan industri. Aplikasi
sistem alga dalam HRAR ini dicoba untuk diaplikasikan dalam
pengolahan air limbah minyak solar. Penelitian dilakukan untuk
mengkaji kemampuan HRAR dalam menurunkan kandungan
minyak solar dengan penambahan glukosa sebagai co-substrate.
Penambahan co-substrate diperkirakan dapat mendorong bakteri
untuk memberikan suplai karbondioksida pada mikroalga.
Penelitian ini dilaksanakan menggunakan 8 reaktor
dengan variabel penelitian konsentrasi minyak solar dalam air
limbah dan konsentrasi gula yang ditambahkan. Variasi gula yang
ditambahkan adalah 5 gram, 7 gram, dan 10 gram ke dalam 18
Liter air pada reaktor. Variasi konsentrasi minyak solar yang
ditambahankan ditentukan dari penelitian pendahuluan. Pada
penelitian pendahuluan dilakukan penambahan minyak solar ke
dalam reaktor berupa 4 variasi konsentrasi dan 1 reaktor kontrol.
Dari variasi konsentrasi minyak solar tersebut digunakan 2
konsentrasi yang dapat ditoleransi oleh alga untuk digunakan
dalam penelitian, yaitu 381 ppm dan 830 ppm. Setiap dua hari
sekali selama 14 hari akan diambil sampel untuk kemudian dianalisis masing-masing parameternya. Parameter yang
dianalisis dalam penelitian ini adalah oil & grease, COD, klorofil
a, DO, pH, temperatur, dan MLSS.
Hasil menunjukkan bahwa efisiensi tertinggi kinerja
HRAR dalam menurunkan konsentrasi minyak solar adalah
sebesar 84,27%. Efisiensi tertinggi ini didapatkan pada reaktor
dengan variasi konsentrasi minyak solar 830 ppm dan cosubstrate
sebesar 10 gram ke dalam 18 Liter yang memiliki nilai
COD 586,67 mg/L. Pada konsentrasi minyak solar sebanyak 830
ppm, penambahan co-substrate memberikan pengaruh dalam
efisiensi penurunan kandungan minyak solar. Semakin besar
penambahan co-substrate, semakin besar efisiensi penurunan
kandungan minyak solar.
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Oil content in wastewater are generally difficult to be
degradated by microorganism using biological waste water
treatment.High Rate Algae Reactor (HRAR) has been developed
and widely used as domestic and industrial wastewater treatment.
Algae in HRAR system is attempted to be applied in wastewater
treatment containing diesel oil. The research was conducted to
assess HRAR ability on removing diesel oil by the addition of
glucose as co-substrate. Addition of co-substrate is estimated to
stimulate bacteria to provide carbondioxide for microalgae.
This research was conducted using 8 reactors with
concentration of diesel oil in wastewater and concentration of
sugar added as variable. Variations of sugar added were 5 grams,
7 grams, and 10 grams into 18 Liters of water in the reactor.
Variations of diesel oil concentration were noted from
preliminary research. Preliminary research was conducted using 4
variations of diesel oil concentration and 1 control reactor. From
the 4 types of concentration, only 2 were used which can be
tolerated by algae to be used in this research. The concentration of
diesel oil were 381 ppm and 830 ppm. Each parameter were
analyzed once every two days for 14 days. The parameters
analyzed in this research was oil & grease, COD, chlorophyll a,
DO, pH, temperature, and MLSS. The result showed the highest efficiency of diesel fuel
removal was 84,27%. This highest efficiency was obtained from
reactor with diesel oil concentration 830 ppm and 10 grams of
sugar in 18 Liters water with COD concentration 586,67 mg/L.
On diesel oil concentration 830 ppm, addition of co-substrate had
given an effect. The more co-substrate added, the higher
efficiency of diesel oil removal can be obtained.
| Item Type: | Thesis (Undergraduate) |
|---|---|
| Additional Information: | RSL 628.35 Put p |
| Uncontrolled Keywords: | Alga; glukosa; HRAR; solar; substrat |
| Subjects: | T Technology > TD Environmental technology. Sanitary engineering > TD646 Sewage--Purification |
| Divisions: | Faculty of Civil Engineering and Planning > Environment Engineering > 25201-(S1) Undergraduate Thesis |
| Depositing User: | - Taufiq Rahmanu |
| Date Deposited: | 16 Jul 2019 04:04 |
| Last Modified: | 17 Jul 2019 04:12 |
| URI: | http://repository.its.ac.id/id/eprint/64093 |
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