PENGARUH KONSENTRASI AMONIA (NH3) YANG BERBEDA TERHADAP LAJU PERTUMBUHAN MIKROALGA LAUT Nannochloropsis oculata

ZAHWA, ELIZA OKTARINA and Diansyah, Gusti and Aryawati, Riris (2024) PENGARUH KONSENTRASI AMONIA (NH3) YANG BERBEDA TERHADAP LAJU PERTUMBUHAN MIKROALGA LAUT Nannochloropsis oculata. Undergraduate thesis, Sriwijaya University.

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Abstract

The development of the industrial era has created new problems. Industrial wastewater poses an environmental problem that has yet to be fully addressed. The waste is usually discharged directly into water bodies without going through the treatment process first, causing water pollution. One of the ecological technology operations that can be used is bioremediation using microalgae such as N. oculata. The purpose of this study was to see the effect of giving different doses of ammonia on the growth rate of N. oculata. The method used was a completely randomized design (RAL) with 5 treatments (A-E) and 3 repetitions, resulting in 15 experimental units. Treatment A is a treatment without ammonia, treatment B has an ammonia dose of 25 mg/L, and treatments C-E have ammonia doses of 50 mg/L, 75 mg/L, and 100 mg/L, respectively, with a TSP dose of 10 mg/L for each treatment. Population density, growth rate and generation time of N. oculata were analyzed by one-way Analysis of variance test. The results showed that ammonia application with different doses influenced population density, growth rate, generation time and biomass. The highest N. oculata population density was found in the 100 mg/L treatment with a value of 4997 x 10⁴ (cells/mL) on day 7. The highest growth rate was obtained from the 75 mg/L treatment with a value of 0,46 cells/ml/day. The fastest generation time was obtained in the 75 mg/L treatment, which was 1,51 days. The highest growth rate of N. oculata biomass production was obtained from the 75 mg/L treatment with a value of 652 grams/m3/day.

Item Type:	Thesis (Undergraduate)
Uncontrolled Keywords:	Amonia, Mikroalga, Nannochloropsis oculata
Subjects:	S Agriculture > SH Aquaculture. Fisheries. Angling > SH388.7-391.5 Algae culture
Divisions:	08-Faculty of Mathematics and Natural Science > 54241-Marine Science (S1)
Depositing User:	Eliza Oktarina Zahwa
Date Deposited:	17 Jul 2024 07:17
Last Modified:	17 Jul 2024 07:17
URI:	http://repository.unsri.ac.id/id/eprint/151428

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