Fikoremediasi Menggunakan Spirulina platensis Untuk Mengurangi Kadar Polutan Pada Limbah Cair Tahu

Husna, Adibatul (2025) Fikoremediasi Menggunakan Spirulina platensis Untuk Mengurangi Kadar Polutan Pada Limbah Cair Tahu. S1 thesis, Universitas Jambi.

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Abstract

RINGKASAN Limbah cair industri tahu mengandung zat organik tinggi yang dapat mencemari lingkungan perairan apabila tidak diolah dengan baik. Penelitian ini bertujuan untuk mengkaji efektivitas mikroalga Spirulina platensis sebagai agen fikoremediasi dalam menurunkan kadar polutan pada limbah cair tahu, dengan parameter utama meliputi Chemical Oxygen Demand (COD), Dissolved Oxygen (DO), Total Suspended Solid (TSS), pH, suhu, dan pertumbuhan alga. Penelitian dilakukan secara eksperimental kuantitatif dengan Rancangan Acak Lengkap (RAL) menggunakan tiga perlakuan Spirulina platensis (10%, 30%, 50%) dan kontrol dengan 6 ulangan. Kondisi awal limbah berbusa, berwarna kuning dan memiliki nilai COD 894,28, TSS 820, DO 0,63 dan pH 3,5. Setelah proses fikoremediasi selama 7 hari, menunjukkan bahwa perlakuan 50% Spirulina platensis mampu menurunkan kadar COD hingga 58%, TSS sebesar 72%, serta meningkatkan kadar DO sebesar 24%. Selain itu, terjadi peningkatan nilai pH kisaran 3,5 -8,10 dan suhu berfluktuasi 26,6 °C- 32,6 °C. Hasil uji ANOVA dan DMRT mengonfirmasi adanya perbedaan signifikan antar perlakuan dengan perlakuan terbaik pada perlakuan P3. Dengan demikian, Spirulina platensis terbukti mampu digunakan untuk mendegradasi dan memperbaiki kualitas limbah cair tahu sebelum dibuang ke lingkungan. SUMMARY Tofu industrial wastewater contains high organic matter that can pollute the aquatic environment if not treated properly. This study aims to assess the effectiveness of Spirulina platensis microalgae as a phycoremediation agent in reducing pollutant levels in tofu wastewater, with the main parameters including Chemical Oxygen Demand (COD), Dissolved Oxygen (DO), Total Suspended Solid (TSS), pH, temperature, and algae growth. The study was conducted quantitatively with a Completely Randomized Design (CRD) using three Spirulina platensis treatments (10%, 30%, 50%) and one control with 6 replications. The initial condition of the wastewater was foamy, yellow, and had a COD value of 894.28, TSS 820, DO 0.63, and pH 3.5. After a phycoremediation process for 7 days, it was proven that the 50% Spirulina platensis treatment was able to reduce COD levels by 58%, TSS by 72%, and increase DO levels by 24%. Furthermore, there was an increase in pH values ranging from 3.5 to 8.10 and temperature fluctuated from 26.6°C to 32.6°C. The results of the ANOVA and DMRT tests showed significant differences between treatments, with the best treatment being treatment P3. Thus, Spirulina platensis has been proven to be able to be used to degrade and improve the quality of tofu liquid waste before it is discharged into the environment.

Type:	Thesis (S1)
Uncontrolled Keywords:	Spirulina platensis, tofu waste, phycoremediation, water quality.
Subjects:	L Education > L Education (General)
Divisions:	Fakultas Sains dan Teknologi > Biologi
Depositing User:	HUSNA
Date Deposited:	30 Sep 2025 07:11
Last Modified:	30 Sep 2025 07:12
URI:	https://repository.unja.ac.id/id/eprint/85908

Available Versions of this Item

• Fikoremediasi Menggunakan Spirulina platensis Untuk Mengurangi Kadar Polutan Pada Limbah Cair Tahu. (deposited UNSPECIFIED)
  • Fikoremediasi Menggunakan Spirulina platensis Untuk Mengurangi Kadar Polutan Pada Limbah Cair Tahu. (deposited 30 Sep 2025 07:11) [Currently Displayed]

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