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Dampak Sosial Ekonomi Pemanfaatan Teknologi Urea Mollases Multinutrients Block di Kabupaten Blora, Jawa Tengah Krishna Agung Santosa; Ali Agus; Uti Sujatinah; Zakiyah Darajat
Buletin Peternakan Vol 24, No 4 (2000): Buletin Peternakan Vol. 24 (4) November 2000
Publisher : Faculty of Animal Science, Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21059/buletinpeternak.v24i4.1422

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Kajian Isoterm Adsorpsi Linear Alkilbenzena Sulfonate (LAS) dalam Limbah Cair Detergen Menggunakan Biosorben Ampas Kopi dan Ampas Kelapa Mimin Septiani; Zakiyah Darajat; Muhammad Arham Yunus; Maria Assumpta Nogo Ole; Zuhrotul Fikri Ilma
Eksergi Vol 20, No 2 (2023)
Publisher : Prodi Teknik Kimia, Fakultas Teknologi Industri, UPN "Veteran" Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31315/e.v20i2.9955

One of the efforts to minimize the impact of detergent waste pollution is by adsorption using coffee dregs and coconut dregs adsorbents. The purpose of this study was to determine the optimum mass of coffee grounds and coconut pulp as adsorbents, to compare the effectiveness of their absorption in decreasing levels of Linear Alkyl Benzene Sulfonate, and to study their adsorption isotherm models. This research was conducted in batches with variations in the mass of each adsorbent, namely 1 gram, 2 grams, 3 grams, 4 grams and 5 grams. This research was conducted in batches with variations in the mass of each adsorbent, namely 1 gram, 2 grams, 3 grams, 4 grams and 5 grams. The detergent waste samples were contacted with the adsorbent for 30 minutes and then the absorption capacity was tested using the Methylene Blue test method. The results showed that the optimum absorption of LAS content from coffee grounds and coconut pulp adsorbents occurred at a mass of 2 grams with the greatest increase in absorption efficiency index Coconut dregs adsorbent is more effective than coffee dregs because it can absorb up to 37%, while coffee dregs are only 10% with the same adsorbent mass of 5 grams. The adsorption isotherm model of the 2 types of adsorbents refers to the Langmuir equilibrium with R2 values for coffee grounds 0.8651 and coconut pulp 0.9868.

Penurunan Konsentrasi Dodecyl Benzene Sulfonate (DBS) Dari Limbah Deterjen Menggunakan Arang Ampas Kelapa Nur Aisyah, Fauziah; Darajat, Zakiyah; Sabara, Zakir; Syarif, Takdir
Journal of Chemical Process Engineering Vol. 1 No. 1 (2016): Journal of Chemical Process Engineering
Publisher : Fakultas Teknologi Industri - Universitas Muslim Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33536/jcpe.v1i1.783

Dewasa ini pencemaran air mengalami peningkatan secara tajam seiring dengan peningkatan jumlah penduduk. Pencemaran air ini disebabkan berbagai hal, salah satunya akibat limbah deterjen. Deterjen yang banyak digunakan di Indonesia adalah jenis Dodecyl Benzene Sulfonate (DBS) yang sangat sulit terdegradasi secara biologis. Belakangan telah diketahui ampas kelapa memiliki kandungan polisakarida yaitu selulosa. Ampas kelapa memiliki struktur berpori dan kandungan kimia selulosa 16 %, mannan 26 %, dan galaktomanan 61 %. Selulosa dan galaktomanan merupakan polisakarida yang mengandung gugus –OH sehingga dapat digunakan sebagai adsorben. Penelitian ini bertujuan untuk mengetahui tinggi dan ukuran adsorben terbaik pada kolom dalam menurunkan kandungan senyawa DBS yang terdapat dalam limbah deterjen. Penelitian dilakukan dengan memasukkan adsorben setinggi 10 cm ke dalam kolom kemudian dimasukkan limbah deterjen hingga adsorben terendam oleh cairan. Diambil beberapa sampel larutan deterjen tiap selang waktu 20 menit lalu dianalisa menggunakan spektrofotometer Uv-Vis untuk mengetahui konsentrasi DBS yang ada di dalam larutan. Prosedur ini dilakukan untuk variasi tinggi 20 cm, 30 cm, dan 40 cm, variasi ukuran -6/+10 mesh, -10/+20 mesh dan -20/+50 mesh. Dari hasil penelitian dapat dilihat bahwa pengolahan limbah deterjen menggunakan arang ampas kelapa dengan tinggi bed 40 cm terjadi penurunan konsentrasi cukup besar yaitu 27,6447 ppm; tinggi bed 30 cm=15,0789 ppm dan tinggi bed 20 cm = 12,8657 ppm, sehingga tinggi bed adsorben terbaik yaitu 40 cm. Untuk penurunan konsentrasi DBS dengan ukuran adsorben -6/+10 mesh = 21,4895 ppm; -10/+20 mesh= 24,2289 ppm dan -20/+50 mesh= 25,7 ppm, sehingga arang ampas kelapa yang terbaik yaitu ukuran -20/50 mesh.

Pengaruh Ukuran Partikel Bahan dan Waktu Penahanan pada Pirolisis Lambat Limbah Tongkol Jagung Menjadi Bioarang Darajat, Zakiyah; Munira, Munira; Septiani, Mimin; Aladin, Andi
Journal of Chemical Process Engineering Vol. 6 No. 2 (2021): Journal of Chemical Process Engineering
Publisher : Fakultas Teknologi Industri - Universitas Muslim Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33536/jcpe.v6i2.816

Limbah lignolselulosa yang tersebar melimpah di berbagai wilayah Indonesia salah satunya adalah tongkol jagung. Limbah lignoselulosia merupakan limbah hasil pertanian yang mengandung komponen polisakarida seperti selulosa, hemiselulosa, dan lignin. Dengan kandungannya tersebut, tongkol jagung sangat berpotensi untuk dikonversi menjadi bioarang yang bisa digunakan sebagai zat aditif dalam pembuatan biobriket. Sebanyak 1 kg tongkol jagung dimasukkan ke dalam reaktor pirolisis dengan variabel ukuran partikel bahan, yaitu kasar (−1/+1 ½ inch), sedang (−38/+ 1 inch), dan halus (-1/4 /+ 3/8 inch). Pirolisis lambat dilakukan pada suhu 400 oC, dengan waktu penahanan 120 menit setelah suhu yang ditentukan tercapai. Biorang yang diperoleh ditimbang dan dianalisis proksimatnya, serta diuji nilai kalorinya. Metode yang sama dilakukan untuk 1 kg tongkol jagung berukuran sedang (−3/8 / + 1 inch) pada suhu 400 oC dengan waktu penahanan 30 menit, 60 menit, 90 menit, 120 menit, dan 150 menit. Ukuran bahan optimum yang digunakan pada proses pirolisis lambat limbah tongkol jagung adalah ukuran sedang (−3/8 /+ 1 inch) dengan nilai kalor 6950 Cal / gram, dan waktu penahanan optimum yang digunakan pada proses pirolisis lambat limbah tongkol jagung adalah 150 menit dengan nilai kalor 7066 Cal / gram.

PEMANFAATAN LIMBAH KULIT PISANG MENJADI SABUN CUCI PIRING DENGAN BAHAN ADITIF KULIT JERUK Darajat, Zakiyah; Septiani, Mimin; Fitria, Fitria
Jurnal Pengabdian Pada Masyarakat METHABDI Vol 3 No 1 (2023): Jurnal Pengabdian Pada Masyarakat METHABDI
Publisher : Universitas Methodist Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.46880/methabdi.Vol3No1.pp6-10

Banana production in Bontang City has increased every year. Along with the high productivity of bananas, the amount of banana peel waste will also increase. In general, waste in the form of banana peels is only used as animal feed or disposed of without further processing so that it can cause environmental pollution. For this reason, it is necessary to manage banana peels so that they have a higher economic value. Banana peel contains alkaloids, flavonoids, phenols, tannins and saponins. This Saponin will produce foam so that it can be used as a washing agent and can also be used as a kitchen equipment cleaner. The samples in this activity were ripe banana peels and orange peels as additives (fragrances and essential oil producers). The method used in the Activities for the Community is the presentation of the material. Discussion, and practice of making dish soap. Participants were very enthusiastic in participating in a series of training activities for making dish soap. The result of this training is an environmentally friendly dish soap product according to the method provided.

PEMANFAATAN LIMBAH KULIT PISANG MENJADI SABUN CUCI PIRING DENGAN BAHAN ADITIF KULIT JERUK Darajat, Zakiyah; Septiani, Mimin; Fitria, Fitria
Jurnal Pengabdian Pada Masyarakat METHABDI Vol 3 No 1 (2023): Jurnal Pengabdian Pada Masyarakat METHABDI
Publisher : Universitas Methodist Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.46880/methabdi.Vol3No1.pp6-10

Banana production in Bontang City has increased every year. Along with the high productivity of bananas, the amount of banana peel waste will also increase. In general, waste in the form of banana peels is only used as animal feed or disposed of without further processing so that it can cause environmental pollution. For this reason, it is necessary to manage banana peels so that they have a higher economic value. Banana peel contains alkaloids, flavonoids, phenols, tannins and saponins. This Saponin will produce foam so that it can be used as a washing agent and can also be used as a kitchen equipment cleaner. The samples in this activity were ripe banana peels and orange peels as additives (fragrances and essential oil producers). The method used in the Activities for the Community is the presentation of the material. Discussion, and practice of making dish soap. Participants were very enthusiastic in participating in a series of training activities for making dish soap. The result of this training is an environmentally friendly dish soap product according to the method provided.

Penerapan E-Commerce dalam Meningkatkan Visibilitas Produk POC Biourine dari Hasil Samping Usaha Peternakan Sapi: Pengabdian Mimin Septiani; Zakiyah Darajat; Muhammad Arham Yunus; A Mufhida Rezky Amalia Azzahra Hayat; Fadhil Dwi Syahputra; Gunarya Muhammad Rachman; Muh Fadil Mufli
Jurnal Pengabdian Masyarakat dan Riset Pendidikan Vol. 4 No. 2 (2025): Jurnal Pengabdian Masyarakat dan Riset Pendidikan Volume 4 Nomor 2 (October 202
Publisher : Lembaga Penelitian dan Pengabdian Masyarakat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31004/jerkin.v4i2.4006

This community service program aimed to enhance the visibility and market reach of liquid organic fertilizer (biourine), a by product of cow farming, through the utilization of e-commerce platforms. The partner, a cattle farmer producing biourine, had limited skills in digital marketing. The program was implemented using the 3P approach, Preparation, Learning, and Strengthening which included socialization, training on product packaging and labeling, e-commerce-based marketing practices, financial recording using Microsoft Excel, assistance in creating an online store account, as well as evaluation and sustainability strategies. The results show that the partner successfully produced properly packaged products and established an online store that has begun to be used for sales transactions. Monitoring of the store’s performance indicated increased marketing activity and greater partner engagement in online selling processes. In addition, collaboration with the village-owned enterprise (BumDes) and the development of social media accounts further expanded the potential distribution of the product both locally and digitally. This program demonstrates that the application of e-commerce can significantly improve product visibility while strengthening the partner’s independence in managing livestock by product enterprises.

PELATIHAN PENGOLAHAN PUPUK CAIR ORGANIK DARI LIMBAH URIN SAPI SEBAGAI UPAYA PENINGKATAN PRODUK SAMPING USAHA PETERNAKAN Septiani, Mimin; Darajat, Zakiyah; Yunus, Muhammad Arham; Mufli, Muh Fadil; Rachman, Gunarya Muhammad; Syahputra, Fadhil Dwi; Hayat, A Mufidha Rezky Amalia Azzahra
JMM (Jurnal Masyarakat Mandiri) Vol 10, No 1 (2026): Februari
Publisher : Universitas Muhammadiyah Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31764/jmm.v10i1.37059

Abstrak: Salah satu masalah yang dihadapi mitra peternak sapi di Kabupaten Bone adalah pengelolaan limbah urin yang tidak dimanfaatkan, yang dapat mencemari lingkungan. Program pengabdian ini dilakukan untuk menjawab masalah mitra terkait pengelolaan limbah peternakan. Tujuan dari kegiatan ini adalah untuk meningkatkan pengetahuan dan kemampuan mitra dalam pembuatan pupuk organik cair biourine, melalui penerapan teknologi fermentasi. Selain itu, melalui pelatihan pengemasan dan pemasaran digital, mitra dapat meningkatkan diversivitas produk. Mitra kegiatan ini adalah Usaha Jual Beli Sapi Putri Kembar 77 dengan jumlah anggota pekerja sebanyak 10 orang. Kegiatan ini juga melibatkan partsipasi aktif dari kelompok tani dan ternak Desa Poleonro, kabupaten Bone. Tahapan pelaksanaan terdiri dari sosialisasi, pelatihan, penerapan teknologi, pendampingan produksi, dan evaluasi. Hasil program ini mampu meningkatkan kemampuan mitra secara signifikan. 80% responden memahami proses pembuatan biourine, 70% mampu membuat biourine sendiri, dan 100% menilai program ini memiliki manfaat ekologis dan ekonomis. Mitra mampu membuat produk yang dikemas dengan baik dan memiliki akun e-commerce untuk memperluas distribusi. Program ini terbukti efektif meningkatkan kapasitas keberdayaan dan kemandirian usaha peternakan dalam memanfaatkan limbah urin sapi.Abstract: One of the problems faced by cattle farmer partners in Bone Regency is the management of unused urine waste, which can pollute the environment. This community service program was carried out to address the partners' problems related to livestock waste management. The purpose of this activity was to increase the partners' knowledge and skills in making biourine liquid organic fertilizer through the application of fermentation technology. In addition, through training in packaging and digital marketing, partners can increase product diversity. The partner in this activity is Usaha Jual Beli Sapi Putri Kembar 77, which has 10 employees. This activity also involves the active participation of the farmer and livestock group of Poleonro Village, Bone Regency. The implementation stages consist of socialization, training, technology application, production assistance, and evaluation. The results of this program have significantly improved the partners' capabilities. 80% of respondents understand the biourine production process, 70% are able to produce biourine themselves, and 100% consider this program to have ecological and economic benefits. Partners are able to produce well-packaged products and have e-commerce accounts to expand distribution. This program has proven effective in enhancing the capacity and self-reliance of livestock businesses in utilizing cattle urine waste.

Pemodelan dan Optimasi Pengaruh Variasi Suhu Pirolisis Lambat terhadap Yield dan Nilai Kalor Biochar Tongkol Jagung Darajat, Zakiyah; Septiani, Mimin; Sukasri, Arifah; Ole, Maria Assumpta Nogo
Venn: Journal of Sustainable Innovation on Education, Mathematics and Natural Sciences Vol. 5 No. 2 (2026): Biology, Physics, Chemistry, and other Basic Sciences
Publisher : Pusat Studi Bahasa dan Publikasi Ilmiah

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.53696/venn.v5i2.418

Biochar is a solid product derived from biomass pyrolysis with considerable potential as an alternative energy source and functional material. One of the key parameters influencing biochar characteristics is pyrolysis temperature. This study aims to model and optimize the effect of slow pyrolysis temperature variations on the yield and calorific value of biochar produced from corncob feedstock. The pyrolysis process was conducted using a slow pyrolysis method at temperatures of 350, 400, 450, and 490 °C, with a low heating rate and a residence time of 60 minutes. The resulting biochar was characterized through proximate analysis, while its calorific value was determined using a bomb calorimeter. The relationship between pyrolysis temperature and both yield and calorific value was modeled using polynomial regression. Multi-response optimization was subsequently performed using the desirability function approach. The results indicate that increasing the pyrolysis temperature leads to a reduction in biochar yield, while simultaneously increasing fixed carbon content and stabilizing the calorific value at higher temperatures. The regression model demonstrated strong agreement with the experimental data, with a coefficient of determination (R²) of 0.9582, indicating excellent model fit. Multi-response optimization revealed that the optimal pyrolysis temperature was 350 °C, producing a biochar yield of 79.71% and a calorific value of 7050 cal/g. This study provides a scientific basis for determining optimal slow pyrolysis operating conditions to enhance the valorization of corncob waste as a biochar-based renewable energy resource.

Kinetics of BTX Removal by Rhodococcus Erythropolis in a Slurry Bioreactor Ole, Maria Assumpta Nogo; Ranggina, Dian; Pampang, Harun; Darajat, Zakiyah
Venn: Journal of Sustainable Innovation on Education, Mathematics and Natural Sciences Vol. 5 No. 2 (2026): Biology, Physics, Chemistry, and other Basic Sciences
Publisher : Pusat Studi Bahasa dan Publikasi Ilmiah

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.53696/venn.v5i2.421

Benzene, toluene, and xylene (BTX) contamination arising from oil-drilling operations constitutes a persistent environmental challenge, necessitating the development of robust bioremediation strategies underpinned by kinetic evaluation. This study systematically investigated the kinetics of BTX removal by Rhodococcus erythropolis in a slurry-phase bioreactor employing soil sourced from the PPEJ oil-drilling site in Tuban, Indonesia, with particular emphasis on the influence of inoculum concentration on the k₀ and the Kₘ. Batch experiments were conducted at inoculum loadings of 12,5%, 15%, and 17,5% (v/v), with periodic monitoring of dissolved-phase BTX concentrations and BOD. Analytical methodologies encompassed gas chromatography–mass spectrometry (GC–MS) for the quantification of BTX and intermediate metabolites, BOD assessment, and kinetic modeling to estimate k₀ and Kₘ values. The results demonstrated that incremental increases in inoculum concentration consistently elevated the k₀, thereby expediting BTX removal in reactors with higher biomass. However, a concomitant decline in specific activity per unit biomass was observed at the highest inoculum level, attributable to mass-transfer limitations—specifically, restricted diffusion of oxygen and substrate into microbial flocs—and heterogeneity in enzyme induction. The estimated Kₘ values exhibited variability across inoculum concentrations, indicating that substrate affinity is modulated by reactor physical parameters and microbial enzymatic adaptation. These findings underscore the necessity of optimizing inoculum concentration in concert with operational parameters such as dissolved oxygen control, agitation intensity, and structured kinetic assays to ensure that enhancements in k₀ are translated into effective per-cell degradation and complete mineralization of BTX contaminants in soils impacted by oil-drilling activities.

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