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All Journal Prosiding Semnastek Jurnal Teknologi Journal of Applied Agricultural Science and Technology Jurnal Rekayasa Proses
Chusna, Firda Mahira Alfiata
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Agriculture, Biological Sciences & Forestry Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Computer Science & IT Electrical & Electronics Engineering Engineering

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Pengolahan Limbah Makanan Menggunakan Metode Anaerobik Berdasarkan Variasi Temperatur Proses dan Inokulum (Kotoran Sapi dan EM4) Chusna, Firda Mahira Alfiata; Marwa, Yolanda Waldatul; Mujilestari, Fauzia Balqis; Suciati, Rhisyani; Adani, Atiqi Tiya
Jurnal Teknologi Vol. 11 No. 2 (2024): Jurnal Teknologi
Publisher : Universitas Jayabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31479/jtek.v11i2.294

Abstract

Limbah makanan merupakan jenis limbah organik yang jumlahnya besar dan peningkatannya tidak terkontrol. Produksi limbah makanan sangat berhubungan dengan pertumbuhan populasi penduduk di Indonesia, semakin tinggi populasinya maka akan semakin banyak limbah makanan yang dihasilkan. Belum banyak metode yang diterapkan untuk mengolah limbah makanan ini sehingga tidak mencemari lingkungan. Penumpukan limbah dapat menimbulkan pencemaran lingkungan seperti udara dengan menghasilkan gas-gas emisi rumah kaca. Selain pencemaran udara, penumpukan limbah juga akan mencemari lingkungan. Proses peruraian anaerobik merupakan suatu proses yang dapat mengolah limbah organik menjadi lebih ramah lingkungan dan dapat menghasilkan biogas dengan spesifikasi substrat tertentu. Penelitian ini berfokus pada peningkatan kualitas limbah makanan yang ditinjau dari penurunan nilai chemical oxygen demand (COD). Penambahan dua inokulum berbeda yaitu kotoran sapi dan EM4 untuk membantu mempercepat proses peruraian senyawa organik kompleks. Setelah proses peruraian anarobik berlangsung selama 18 hari didapatkan hasil COD removal tertinggi pada proses dengan temperatur 45oC yang menggunakan inokulum EM4, yaitu 53,91%. Proses yang menggunakan inokulum kotoran sapi dan dijalankan pada temperatur 30oC memiliki nilai COD removal sebesar 32,57%. Hasil yang didapatkan menunjukkan efek positif dari temperatur yang lebih tinggi 45oC dan penambahan EM4 dalam menurunkan nilai COD. Kata Kunci: Limbah makanan, anaerobik, inokulum, chemical oxygen demand
Perbandingan Tawas Dan Poly Aluminium Chloride (PAC) Pada Pengolahan Limbah Cair Industri Tempe Widiawati, Selvi; Ardistya, Fibrianzia Bety; Aktawan, Agus; Chusna, Firda Mahira Alfiata
Prosiding Semnastek PROSIDING SEMNASTEK 2024
Publisher : Universitas Muhammadiyah Jakarta

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Abstract

Limbah yang dihasilkan dari industri tempe diantaranya limbah cair, limbah padat, dan limbah gas. Limbah cair dari industri tempe apabila tidak diolah secara baik, maka akan memiliki dampak buruk terhadap lingkungan sekitar dan akan menjadi permasalahan lingkungan yang membutuhkan waktu, tenaga, dan biaya dalam menanganinya. Limbah cair dari proses pembuatan tempe memiliki beberapa kandungan seperti 0,11% karbohdrat, 0,42% protein, 0,13% lemak, 4,55% besi, 1,74 fosfor dan 98,8% air. Dalam penelitian pengolahan limbah cair industri tempe kali ini akan dilakukan dengan koagulasi menggunakan koagulan anorganik berupa tawas dan Poly Aluminium Chloride (PAC). Penelitian ini menggunakan variasi koagulan dengan berat masing-masing sebanyak 18%, 19%, 21%, 22% dan 23%. Setelah itu menganalisis hasil pengolahan limbah cair tempe dengan mengukur nilai TSS (Total Solid Suspended), DO (Disolve Oxygen), COD (Chemixal Oxygen Demand), dan pH. Keefektifan koagulan tawas dalam menaikkan konsentrasi DO dan menurunkan TSS yaitu pada berat 18 gram, serta keefektifan koagulan tawas dalam menurunkan COD yaitu pada berat 20 gram. Sedangkan keefektifan koagulan PAC dalam menaikkan DO yaitu pada berat 16 gram, serta keefektifan koagulan dalam menurunkan COD dan TSS yaitu pada berat 20 gram. Jenis koagulan yang optimum dalam menurunkan COD dan TSS serta menaikkan kadar DO yaitu koagulan tawas.Kata kunci: Limbah cair, Tawas, Poly Aluminium Chloride
Biogas Production from Various Vegetable Waste Using the Mesophilic Batch Process Chusna, Firda Mahira Alfiata; Auliyasari , Annita; Nakita , Feren; Hanum, Farrah Fadhilah; Amelia , Nadiatika
Journal of Applied Agricultural Science and Technology Vol. 8 No. 4 (2024): Journal of Applied Agricultural Science and Technology
Publisher : Green Engineering Society

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55043/jaast.v8i4.242

Abstract

Vegetable waste is a significant component of both household and food industry waste. If not properly managed, the accumulation of this waste can harm the environment, primarily due to the unpleasant odor it generates. One effective way to utilize vegetable waste is through anaerobic digestion process. This method not only enhances the quality of waste but also has the added benefit of producing biogas, a form of renewable energy. Therefore, this research aimed to examine the potential of vegetable waste in producing biogas. Anaerobic digestion process was performed on three different types of vegetables, namely cabbage, kale, and long beans, with co-digestion as cow dung. This process was performed in mesophilic batch anaerobic reactor with a fermentation time of 30 days. The highest biogas yield for 30 days was obtained from long bean waste, 1853.76 ml biogas/g COD. Observations were made on waste at the beginning and end of the process to determine the value of removing chemical oxygen demand (COD). Reducing COD value was necessary to examine whether the quality of waste has improved and ready to be used in the environment. The results showed that long beans have the lowest COD removal efficiency value, 31.54%. Due to the high lignin content in these vegetables, there is a need for further research regarding the pretreatment of vegetable waste before anaerobic decomposition process begins. Meanwhile, the highest COD removal efficiency was achieved by kale vegetable waste at 45.35%.
Microwave assisted extraction of anthocyanin from purple sweet potato (Ipomoea batatas L.) using deep eutectic solvent (DES) based on citric acid Evitasari, Rachma Tia; Rofiqoh, Hana; Damayanti, Putri Alfina; Chusna, Firda Mahira Alfiata
Jurnal Rekayasa Proses Vol 16 No 2 (2022): Volume 16, Number 2, 2022
Publisher : Jurnal Rekayasa Proses

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/jrekpros.72046

Abstract

Purple sweet potato (Ipomoea batatas L.) is one of the tubers or roots that is widely grown in Indonesia that contain high antioxidants. One type of flavonoid that functions as an antioxidant is a natural dye called anthocyanin. In the process of extraction of anthocyanin, the solvent has an important role. In this research, the deep eutectic solvent was used because it is more economical and environmentally friendly. This research will optimize the microwave assisted extraction of anthocyanin content in purple sweet potato (Ipomoea batatas L.) using a deep eutectic solvent with the variation of material to solvent ratio, microwave power, and extraction time. Optimization is done by using the statistical method Response Surface Method (RSM) with Total Anthocyanin content as a response. The optimum operating conditions for the extraction of anthocyanins from purple sweet potato using the deep eutectic solvent were obtained at a solid to solvent ratio of 1:29 at a microwave power of 270 watts for 193 s, with an optimum TAC value of 311.64 mg/L and an antioxidant value of 44.85%. The use of DES can increase the extraction yield and is environmentally friendly.
Co-Authors Adani, Atiqi Tiya Agus Aktawan, Agus Amelia , Nadiatika Ardistya, Fibrianzia Bety Auliyasari , Annita Damayanti, Putri Alfina Evitasari, Rachma Tia Hanum, Farrah Fadhilah Marwa, Yolanda Waldatul Mujilestari, Fauzia Balqis Nakita , Feren Rofiqoh, Hana Suciati, Rhisyani Widiawati, Selvi