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All Journal Jurnal Pengabdian Kepada Masyarakat Sakai Sambayan Indonesian Journal of Chemical Science Jurnal Teknologi Lingkungan JURNAL REKAYASA KIMIA & LINGKUNGAN Nemui Nyimah
Panca Nugrahini Febriningrum
Jurusan Teknik Kimia, Fakultas Teknik, Universitas Lampung
Agriculture, Biological Sciences & Forestry Humanities Chemical Engineering, Chemistry & Bioengineering Chemistry Computer Science & IT Earth & Planetary Sciences Energy Engineering Environmental Science Medicine & Pharmacology Other

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The Addition Effect of Chitosan and Bacillus amyloliquefanciens Bacteria in the Tapioca Liquid Waste Phytoremediation Process Febriningrum, Panca Nugrahini; M. Nur, Mela Sari
Indonesian Journal of Chemical Science Vol 10 No 1 (2021)
Publisher : Universitas Negeri Semarang

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Abstract

Tapioca liquid waste treatment using phytoremediation process of water hyacinth plant has not reached the maximum result, therefore it is necessary to give more treatment by adding chitosan as a pretreatment and Bacillus amyloliquefanciens bacteria. This study aims to determine and determine the effect of the addition of chitosan and bacteria to increase the ability of water hyacinth plants in phytoremediation of tapioca wastewater. The research process was carried out in two stages of tapioca liquid waste processing, namely the batch and continue stages. The batch process uses a reactor and the continuous process uses three reactors connected in series for each treatment. The result in the batch process without the addition of bacteria without the addition of bacteria namely, COD removal of 79%, TSS removal of 65,12%, VSS removal of 60% and final pH of 6,9 for 12 days with variation of chitosan 25 mg/l. In the treatment of the addition of large bacteria, COD removal was 81,78%, TSS removal 86,11%, VSS removal was 89,66% and final pH was 6,8 for 8 days with a variation of chitosan 50mg/l. The results in the continued process with a residence time of 12 hours COD removal of 78,25% with an end value of TSS 400 mg/l, VSS 200 mg/l and pH 5,5. So it can be concluded that the effect of the chitosan and bacteria on the phytoremediation process of tapioca wastewater namely, the more chitosan is added, the COD removal is smaller and the pH value tends to be constant, but the VSS and TSS removal is greater in the treatment without bacteria. The treatment with the addition of bacteria showed that the more chitosan was added, the greater the COD removal and TSS removal. This is in contrast to the VSS removal which is getting smaller, while the pH value tends to be constant.
The Addition Effect of Chitosan and Bacillus amyloliquefanciens Bacteria in the Tapioca Liquid Waste Phytoremediation Process Febriningrum, Panca Nugrahini; M. Nur, Mela Sari
Indonesian Journal of Chemical Science Vol 10 No 1 (2021)
Publisher : Universitas Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Tapioca liquid waste treatment using phytoremediation process of water hyacinth plant has not reached the maximum result, therefore it is necessary to give more treatment by adding chitosan as a pretreatment and Bacillus amyloliquefanciens bacteria. This study aims to determine and determine the effect of the addition of chitosan and bacteria to increase the ability of water hyacinth plants in phytoremediation of tapioca wastewater. The research process was carried out in two stages of tapioca liquid waste processing, namely the batch and continue stages. The batch process uses a reactor and the continuous process uses three reactors connected in series for each treatment. The result in the batch process without the addition of bacteria without the addition of bacteria namely, COD removal of 79%, TSS removal of 65,12%, VSS removal of 60% and final pH of 6,9 for 12 days with variation of chitosan 25 mg/l. In the treatment of the addition of large bacteria, COD removal was 81,78%, TSS removal 86,11%, VSS removal was 89,66% and final pH was 6,8 for 8 days with a variation of chitosan 50mg/l. The results in the continued process with a residence time of 12 hours COD removal of 78,25% with an end value of TSS 400 mg/l, VSS 200 mg/l and pH 5,5. So it can be concluded that the effect of the chitosan and bacteria on the phytoremediation process of tapioca wastewater namely, the more chitosan is added, the COD removal is smaller and the pH value tends to be constant, but the VSS and TSS removal is greater in the treatment without bacteria. The treatment with the addition of bacteria showed that the more chitosan was added, the greater the COD removal and TSS removal. This is in contrast to the VSS removal which is getting smaller, while the pH value tends to be constant.
Tofu Liquid Waste Treatment Process Using Anaerobic Baffled Reactor with Cow Stool and Lactobacillus casei Addition Febriningrum, Panca Nugrahini; Astawa, I Nyoman Endra
Indonesian Journal of Chemical Science Vol 11 No 1 (2022)
Publisher : Universitas Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/ijcs.v11i1.51180

Abstract

Tofu liquid waste causes ecosystem damage due to its high organic matter content. Anaerobic baffled reactor (ABR) is a waste treatment in the absence of oxygen where there is a sedimentation process using activated sludge. This process converts organic material into methane gas, ammonia and hydrogen sulfide. This study aims to determine the effect of addition of cow feces and Lactobacillus casei bacteria on decreasing levels of COD, TSS, VSS, pH and gas pressure. The research process was carried out in two stages of processing tofu liquid waste, namely the batch and continuous stages. Batch and continuous processes use an ABR reactor which has four chambers. Parameters measured include, COD, TSS, VSS, pH and Gas Pressure. The results obtained by the best batch process were obtained without the addition of bacteria, the ratio of cow feces and activated sludge was 1:4, the COD removal was 81.63%, the TSS removal was 1,300 mg/L, the VSS removal was 1,200 mg/L and the pH value final 8.0 for 6 days. The best processing time in the continuous process is 6 hours, the COD removal is 78.12%, the TSS removal is 600 mg/L, the VSS removal is 500 mg/L and the final pH value is 6.5. It can be concluded that the more cow feces added, the faster and greater the removal of COD, TSS, VSS and pH values ​​tended to increase in the treatment of adding bacteria.
Pengaruh Waktu Kontak dan Luas Permukaan Elektroda pada Pengolahan Limbah Cair Pabrik Kelapa Sawit Menggunakan Metode EAPR (Electro-assisted Phytoremediation) dengan Tanaman Eceng Gondok (Eichhornia crassipes) Febriningrum, Panca Nugrahini; Azalpa, Khansa Arikah; Haviz, Muhammad
Jurnal Teknologi Lingkungan Vol. 26 No. 1 (2025)
Publisher : BRIN Publishing (Penerbit BRIN)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55981/jtl.2025.3884

Abstract

ABSTRACT POME wastewater treatment remains a significant area of research due to the industry’s large scale and high potential for wastewater pollution. This research investigated the effect of variations in contact time and surface area of Zinc (Zn) electrodes on the parameters of pH, COD, BOD, TSS, VSS, and oil and fat values in the POME wastewater. POME wastewater treatment was conducted using the EAPR method with an electric voltage of 9 (nine) volts and utilizing 3 (three) water hyacinth plants, each with 5–8 leaves. The treatment process was terminated once the reduction in pollutant concentration reached a constant number. The results showed that the values that met quality standards were pH values in all treatments and BOD values in the 45-minute contact time variation across all electrode surface areas. As for the other analysis values, they did not meet the quality standards, with the highest COD reduction of 91.46%, the highest TSS reduction of 96.77%, the highest VSS reduction of 24.92%, and the highest oil and fat reduction of 98.89% observed in the 75 minutes contact time variation using a cathode surface area of 500 cm2 and anode 14 cm2. It can be concluded that this method is currently ineffective for POME wastewater treatment as not all parameters meet quality standards. This research is expected to provide valuable insights for future experiments in wastewater treatment. Recommendations for further research include adding a method to increase oxygen levels in wastewater or adding microorganisms to enhance organic breakdown. ABSTRAK Penelitian mengenai pengolahan limbah cair industri minyak kelapa sawit terus dilakukan karena industri ini merupakan industri yang besar dan menghasilkan banyak limbah cair dengan potensi pencemaran yang tinggi. Penelitian ini bertujuan untuk menganalisis pengaruh waktu kontak dan luas permukaan elektroda seng (Zn) terhadap konsentrasi nilai pH, COD, BOD, TSS, VSS, serta minyak dan lemak. Pengolahan limbah cair pabrik kelapa sawit dilakukan dengan menggunakan metode EAPR bertegangan 9 volt dengan 3 tanaman eceng gondok berdaun 5–8 helai. Perlakuan dihentikan jika penurunan sudah mencapai angka yang konstan. Hasil penelitian menunjukkan bahwa nilai yang memenuhi baku mutu yaitu nilai pH pada seluruh perlakuan dan nilai BOD pada variasi waktu kontak 45 menit di seluruh variasi luas area permukaan elektroda. Sedangkan untuk nilai analisis yang lain masih belum sesuai dengan baku mutu, dengan penurunan COD tertinggi sebesar 91,46%, penurunan TSS tertinggi sebesar 96,77%, penurunan VSS tertinggi sebesar 24,92%, serta penurunan minyak dan lemak tertinggi sebesar 98,89% pada variasi waktu kontak 75 menit dengan luas permukaan katoda 500 cm2 dan anoda 14 cm2. Dapat disimpulkan bahwa metode ini belum efektif untuk pengolahan limbah cair pabrik kelapa sawit karena belum seluruh analisis memenuhi baku mutu. Penelitian ini diharapkan dapat bermanfaat untuk dikaji lebih lanjut untuk pengolahan limbah cair. Saran untuk penelitian selanjutnya yaitu menambahkan metode aerasi supaya dapat meningkatkan kandungan oksigen dalam air limbah atau menambahkan mikroorganisme untuk mengurai kandungan organik.                                 
Aplikasi Zat Warna Alami Untuk Meningkatkan Nilai Tambah Produk Makanan di Desa Lingsuh Rajabasa, Bandar Lampung Utami, Herti; Darni, Yuli; Febriningrum, Panca Nugrahini
Jurnal Pengabdian Kepada Masyarakat Sakai Sambayan Vol. 8 No. 1 (2024)
Publisher : Lembaga Penelitian dan Pengabdian Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jss.v8i1.453

Abstract

Pada proses pengolahan makanan secara umum selalu menambahkan bahan aditif zat warna yang bertujuan untuk menjadikan makan menarik dalam tampilannya. Kelompok mitra yang terdiri ibu-ibu PKK dan ibu-ibu rumah tangga ini tidak memeliki pengetahuan yang cukup mengenai bahaya pewarna sintetis, serta manfaat pengguinaan pewarna alami pada produk makanan yang memiliki nilai tambah dalam hal kesehatan. Tim Pengabdian memberikan solusi dengan memberikan transfer pengetahuan tentang bahaya zat warna sintetis, dan manfaat penggunaan zat warna alami, serta bagaimana cara pembuatannya dan aplikasinya pada produk makanan. Pengolahan makanan dengan zat warna alami ini dapat dilakukan dengan cara sederhana dan bahan baku juga murah. Hasil yang diharapkan memiliki nilai manfaat terutama bagi kesehatan dan memiliki nilai jual pada produk makanan yang dikonsumsi sendiri maupun yang dijual. Kegiatan pengabdian ini meliputi penyuluhan tentang manfaat zat warna alami pada makanan yang kita konsumsi sehari-hari. praktek pembuatan zat warna alami dari kayu secang, dan kemudian diaplikasikan pada produk makanan. Kegiatan pengabdian ini memberikan kontribusi mitra mendapatkan pengetahuan baru yang sangat bermanfaat pada saat pelatihan dan praktek serta memiliki peluang untuk dijadikan usaha sampingan.
Preparation and Characterization of Nanocrystalline Cellulose from Cassava Stem Wastes by Electromagnetic Induction Lismeri, Lia; Rahmi, Hertantri Yulia; Gomiyati, Nada Afifah; Darni, Yuli; Febriningrum, Panca Nugrahini; Azhar, Azhar
Jurnal Rekayasa Kimia & Lingkungan Vol 16, No 2 (2021): Jurnal Rekayasa Kimia & Lingkungan (December, 2021)
Publisher : Chemical Engineering Department, Syiah Kuala University, Banda Aceh, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23955/rkl.v16i2.21927

Abstract

Cassava stems were one of the largest agricultural by products in Indonesia, especially in Lampung Province. It is known that cassava stems have a fairly high lignocellulose content, especially cellulose which reaches 39.29%. The high cellulose content in cassava stems has great potential to be used as raw material for Nanocrystalline Cellulose (NCC). The preparation of nanocrystalline cellulose consists of four main stages, namely: pre-hydrolysis, delignification, bleaching, and acid hydrolysis. The pre-hydrolysis stage was carried out by boiling a solution of CH3COOH and cassava stem powder for 60 minutes at a temperature of 105oC. Cassava stem powder was then delignified using a 25% NaOH solution heated to a temperature of 105oC for 1 hour. The bleaching stage used a 3.5% NaOCl solution at a temperature of 50oC for 60 minutes and was carried out twice. The last step is acid hydrolysis using 2.5N HCl solution for 15 minutes at a temperature of 105oC, then the electromagnetic induction treatment is varied with temperature variations of 30oC, 50oC, and 70oC for 60 minutes. The prepared nanocrystalline cellulose were tested for lignocellulose, XRD and PSA. From the test results, the best variation of nanocrystal cellulose preparation was acid hydrolysis treatment with 70oC electromagnetic induction for 60 minutes, namely an increase in the percentage of cellulose 62.93%, crystallinity 90.68%, and an average particle size of 18.04m with some particles measuring nanometers. From the results of the research, it was concluded that electromagnetic induction increased crystallinity and decreased the size of nanocrystalline cellulose.
Pengaruh Konsentrasi Substrat Kulit Nanas dan Kecepatan Pengadukan terhadap Pertumbuhan Lactobacillus plantarum untuk Produksi Asam Laktat Febriningrum, Panca Nugrahini
Jurnal Rekayasa Kimia & Lingkungan Vol 9, No 3 (2013): Jurnal Rekayasa Kimia & Lingkungan
Publisher : Chemical Engineering Department, Syiah Kuala University, Banda Aceh, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23955/rkl.v9i3.784

Abstract

One of the alternative utilization of pineapple peel waste is to convert them to lactate acid via fermentation. This research is aimed to obtain better understanding on the growth of lactate bacteria (Lactobacillus plantarum) by varying substrate concentration: 100 g/L - 600 g/L and stirring rate of 50 rpm, 150 rpm, and 250 rpm. The growth of anaeroic process was performed without pH controlling with initial pH of 5 and temperature of 28OC. Pineapple peel was used as the substrate after romoving water content using ammonium dihydrogen phosphate. Cell growth was analyzed by calculating the total of microorganism cell using hemocytometer. In order to determine lactate acid production, glucose concentration was analyzed using spectrophotometer. Nelson-Somogy method was employed in this analysis. Ethanol concentration was also analyzed by calculating the titration of acid lactate concentration. The optimum growth of Lactobacillus plantarum was found at 28oC, stirring rate of 150 rpm and substrate concentration of 500 g/L contributing to the total cell of 3,85.108, 1,13.109, and 4,00.108 for lag, exponential, and decrease phase respectively. Further analysis carried out based on stirring rate of 150 rpm and substrate concentration of 500 g/L resulted in the largest average concentration of lactate acid of 1.620% v/v with glucose consumption percentage of 51,76%.Keywords: pineapple peel, Lactobacillus plantarum, lactate acid
Produksi Etanol Proses Sinambung dengan Schizosaccharomyces Pombe Febriningrum, Panca Nugrahini
Jurnal Rekayasa Kimia & Lingkungan Vol 7, No 2 (2009): Jurnal Rekayasa Kimia & Lingkungan
Publisher : Chemical Engineering Department, Syiah Kuala University, Banda Aceh, Indonesia

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Abstract

Ethanol is one of fermentation products which are mostly used as solvent in pharmaceutical and chemical industries. Ethanol production by fermentation generally uses yeast from Saccharomyces and Schizosaccharomyces. The fermentation of ethanol by both processes yields great quantities of ethanol. Optimum productivity in ethanol fermentation by continuous process using Schizosaccharomyces pombe was obtained at initial substrate concentration of 200g/L, with value as much of 7.342g/Lhour at dilution rate of 0.1/hour, 4.643 g/Lhour at dilution rate of 0,06/hour and 3.213g/Lhour at dilution rate of 0.04/hour. The highest value of ethanol coefficient YP/S obtained at initial substrate concentration of 100g/L was as much of 0.461 at batch process, while values of ethanol coefficient YP/S obtained were in the range of 0,477-0,511 in continuous process, which were higher than those of batch process.Keywords: continuous process, ethanol, schizosaccharomyces pombe
Meningkatkan Nilai Tambah Produk Minuman Kekinian Dengan Zat Warna Alami dari Bunga Telang dan Kayu Secang di DesaLingsuh, Rajabasa, Bandar Lampung Herti Utami; Yuli Darni; Febriningrum, Panca Nugrahini; Azhar; Heri Rustamaji
Nemui Nyimah Vol. 4 No. 1 (2024): Nemui Nyimah Vol.4 No.1 2024
Publisher : FT Universitas Lampung

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Abstract

Pada produk makanan atau minuman yang dikonsumsi masyarakat kebanyakan ada penambahan pewarna yang memiliki tujuan agar produk tersebut lebih menggugah selera dan menarik. Pada pengabdian ini bekerjasama dengan mitra yang terdiri ibu-ibu PKK dan ibu-ibu rumah tangga di Desa Lingsuh, Kecamatan Rajabasa, Bandar Lampung. Pengetahuan mitra masih awam tentang zat warna pada produk makanan atau minuman. Baik pewarna sintetis maupun pewarna alami yang digunakan dalam produk makanan dan minuman masih belum diketahui secara mendetail. Beberapa di antara mitra memiliki usaha jualan minuman yang dalam hal ini mereka belum menggunakan zat warna alami sebagai pewarna dalam produkminuman mereka. Tim Pengabdian memberikan solusi dengan memberikan transfer pengetahuan tentang zat warna alami yang dapat digunakan dalam produk minuman mereka dan nilai tambah jika menggunakan zat warna alami, serta cara pembuatannya danpenggunaannya pada produk minuman yang mereka jual. Pembuatan minuman kekinian dengan menggunakan zat warna alami ini dapat dilakukan dengan cara sederhana dan bahan baku yang mudah didapatkan dan harganya murah. Kegiatan ini diharapkan memiliki dampak pada nilai jual produk minuman mitra dan juga bermanfaat pada konsumen produk mitra, khususnya dalam penggunaan zat warna alami yang bermanfaat bagi Kesehatan. Program yangdilaksanakan dalam pengabdian ini meliputi penyuluhan tentang manfaat zat warna alami pada minuman, praktek pembuatan zat warna alami dari bunga telang dan kayu secang, serta mempraktekkan pembuatan minuman kekinian. Dengan program pengabdian ini mitramendapatkan pengetahuan baru yang sangat bermanfaat pada saat pelatihan dan praktek serta dapat digunakan pada produk jualan mereka
Meningkatkan Nilai Tambah Produk Minuman Kekinian Dengan Zat Warna Alami dari Bunga Telang dan Kayu Secang di DesaLingsuh, Rajabasa, Bandar Lampung Utami, Heri; Febriningrum, Panca Nugrahini; Azhar; Rustamaji, Heri
Nemui Nyimah Vol. 4 No. 1 (2024): Nemui Nyimah Vol.4 No.1 2024
Publisher : FT Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/nm.v4i1.130

Abstract

Most food or drink products consumed by the public have coloring added with the aim of making the product more appetizing and attractive. This service collaborates with partners consisting of PKK women and housewives in Desa Lingsuh, Rajabasa, Bandar Lampung. Partners still have limited knowledge about dyes in food or beverage products. Both synthetic dyes and natural dyes used in food and beverage products are still not known in detail. Some of the partners have beverage sales businesses, in which case they do not use natural dyes as coloring agents in their beverage products. The Service Team provides solutions by providing knowledge transfer about natural dyes that can be used in their beverage products and the added value of using natural dyes, as well as how to make them and use them in the beverage products they sell. Making contemporary drinks using natural dyes can be done using simple methods and raw materials that are easy to obtain and cheap. This activity is expected to have an impact on the selling value of partner beverage products and also benefit consumers of partner products, especially in the use of natural dyes which are beneficial for health. The programs implemented in this service include education about the benefits of natural dyes in drinks, practice of making natural dyes from telang flowers and secang wood, as well as practicing making contemporary drinks. With this service program, partners gain new knowledge that is very useful during training and practice and can be used in the products they sell.
Co-Authors Abda Abda Astawa, I Nyoman Endra Azalpa, Khansa Arikah Azhar Azhar Azhar Damayanti, Sri Ismiyati Darmansyah Gomiyati, Nada Afifah Heri Rustamaji Herti Utami Herti Utami Lismeri, Lia M. Haviz M. Nur, Mela Sari Rahmi, Hertantri Yulia Sapitri, Refia Simparmin br Ginting Tasry, Nazwa Aulia Utami, Heri Yuli Darni Yuli Darni