Hutabarat, Patricia Agnes (2019) Uji Kemampuan Konsorsium Alga Chlorella vulgaris dan Spirulina platensis untuk Meremoval Logam Berat Kadmium (II). Undergraduate thesis, Institut Teknologi Sepuluh Nopember.
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Abstract
Penelitian ini bertujuan untuk menentukan persentase penyisihan kadmium oleh konsorsium alga dan perbandingan komposisi terbaik antar kedua alga yaitu Chlorella vulgaris dan Spirulina platensis dalam mengakumulasi atau menyisihkan logam berat sebagai pencemar. Air limbah mengandung kadmium yang digunakan pada penelitian ini merupakan air limbah sintetik dengan konsentrasi kadmium 10 mg/L. Penentuan nilai konsentrasi kadmium yang digunakan tersebut didasarkan pada penelitian pendahuluan menggunakan metode Range Finding Test (RFT). Variabel yang digunakan pada penelitian adalah variasi komposisi algae Chlorella vulgaris dan Spirulina platensis (25:75, 50:50, dan 75:25 %v/v) dan tingkat salinitas media hidup alga (0 psu, 20 psu, 35 psu). Penelitian dilakukan selama 7 hari dengan metode High Rate Algae Reactor (HRAR) yaitu dengan optimalisasi pengadukan 80-100 rpm selama 24 jam/hari dan pencahayaan menggunakan sinar artifisial pada intensitas 6000 – 7000 lux. Nilai penurunan total logam berat diuji menggunakan metode analisis AAS (Atomic Absorption Spectrofotometry). Hasil penelitian menunjukkan bahwa kemampuan terbaik penyisihan kadmium adalah pada reaktor dengan variasi komposisi Chlorella vulgaris : Spirulina platensis 75% : 25% pada salinitas 0 psu yang mampu menyisihkan kromium sebesar 28,5%.
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The purpose of this project is to know the removal precentage of Cadmium by microalga consortia and the best composition ratio of Chlorella vulgaris and Spirulina platensis accumulating and removing the heavy metal as the pollutant in the wastewater. The concenration of Cadmium (II) used in this project is 10 mg/L. The concentration is determined by Range Finding Test (RFT). Variables in this projects are the composition ratio of Chlorella vulgaris and Spirulina platensis (25%:75%, 50%:50%, and 75%:25%, %v/v) and the salinity of media (0 psu, 20 psu, and 35 psu). The duration of this research is 7 days using High Rate Algae Reactor (HRAR) by optimize the mixing rate at 80-100 rpm for 24 hours/day and add the artificial source of light 6000-7000 lux. The ability of the consortia of microalga removing Cadmium (II) is known by Atomic Absorption Spectrofotometry. The result shows that the best ability of Cadmium (II) removal is on the reactor contains Chlorella vulgaris and Spirulina platensis with the composition ratio is 75% : 25% and 0 psu salinity. The best precentage of removal is 28,5 %.
| Item Type: | Thesis (Undergraduate) |
|---|---|
| Additional Information: | RSL 628.167 42 Hut u-1 2019 |
| Uncontrolled Keywords: | Spirulina platensis, Chlorella vulgaris, High Rate Algal Reactor, Konsorsium, Kadmium, Salinitas |
| Subjects: | T Technology > TD Environmental technology. Sanitary engineering T Technology > TD Environmental technology. Sanitary engineering > TD192.5 Bioremediation T Technology > TD Environmental technology. Sanitary engineering > TD646 Sewage--Purification |
| Divisions: | Faculty of Civil Engineering and Planning > Environment Engineering |
| Depositing User: | Patricia Agnes Hutabarat |
| Date Deposited: | 16 Jun 2021 03:59 |
| Last Modified: | 16 Jun 2021 03:59 |
| URI: | http://repository.its.ac.id/id/eprint/60469 |
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