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Hanifah, Windia
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Efektivitas Metode Fenton-TiO2-UV Terhadap Degradasi Warna dan Chemical Oxygen Demand Pada Pengolahan Palm Oil Mill Effluent Teguh, Dedi; Hanifah, Windia; Cendekia, Devy; Phelia, Arlina; Sari, Nita Pita; Adib, Asraf Wa
REACTOR: Journal of Research on Chemistry and Engineering Vol 5, No 2: December 2024
Publisher : Politeknik ATI Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.52759/reactor.v5i2.160

Abstract

The palm oil industry produces POME (Palm Oil Mill Effluent) liquid waste. POME is generally brownish, has an odor, and contains dissolved and suspended solids in the form of colloids and oil residue with a high Chemical Oxygen Demand (COD) content. Currently, the POME processing system still uses a conventional system known as the open pond system. This research aims to reduce the burden of organic materials related to removing COD levels, and color. It can solve the technical and operational obstacles of conventional processing systems. One of the extensive efforts to process POME is to develop Fenton-based photocatalytic technology, namely the Fenton-TiO2-UV method. Photocatalytic technology has several general processes involving semiconductor photocatalysts such as TiO2 and photon (UV) energy sources. In this study, the Fenton-TiO2-UV method was used with variations in the Fenton molar ratio of 1:100, 1:200, 1:300 (v/v), reaction times of 30, 60, and 90 minutes with TiO2 concentration 0.6% and uses 2 UV lamps (15 watts). This study achieved the maximum color degradation percentage at a Fenton molar ratio of 1:100 with a reaction time of 30 minutes, namely 95.28%. Meanwhile, the maximum COD degradation percentage was achieved at a Fenton molar ratio of 1:100 with a reaction time of 90 minutes, namely 98.88%.
Analysis of Process Variables Effect on The Efficiency of Soxhletation Extraction of Larvae Oil (Hermetica illucens) using Response Surface Methodology Fitria, Murni; Rhea Alvita, Livia; Ariski Putra, Feby; Variyana, Yeni; Hanifah, Windia
Indonesian Journal of Chemical Analysis (IJCA) Vol. 8 No. 1 (2025): Indonesian Journal of Chemical Analysis
Publisher : Universitas Islam Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20885/ijca.vol8.iss1.art7

Abstract

Maggot or Black Soldier Fly (BSF) larvae can be used as a source of oil because they have a high lipid content. In this study, the maggot oil extraction process was optimised using the soxhlet method with the assistance of the response surface methodology (RSM) using the Central Composite Design (CCD) research design. Optimization was carried out with variations in the ratio: solvent (1: 7, 1: 10 and 1: 13 g/mL) and extraction time (120, 240 and 360 minutes). The results of the significance test using ANOVA showed that the sample solvent comparison had an insignificant effect (p-value: 0.060). In contrast, the extraction time had a significant effect (p-value: 0.000) on the maggot oil harvest yield. The results of different analyses showed a significant quadratic interaction between the sample solvent comparison (p-value: 0.002) and a significant interaction between the sample solvent comparison and extraction time (p-value: 0.008). The recommended optimal conditions based on optimization using RSM are a combination of a sample solvent ratio of 1:8.5 and an extraction time of 360 minutes with a predicted oil yield of 32.11%. Meanwhile, experimental validation at the recommended optimal conditions produced a yield of 38.68% or greater than the predicted value. The characteristics of the maggot oil obtained had a density of 0.9493 g/mL, a viscosity of 0.92 Pa.s, an air content of 0.0847% w/w, and free fatty acids of 4.56%. The results of GC-MS analysis of maggot oil showed a total of 9 compounds, with the 3 most abundant compounds being oleic acid (52.6%), palmitic acid (24.78%), and lauric acid (12.45%).
PENGARUH TEKNOLOGI INFORMASI TERHADAP ASURANSI KESEHATAN DI INDONESIA TAHUN 2017 Junaidi, Edi; Islami, Muhammad Reza Redo; Hanifah, Windia; Widyaningrum, Sri Rahayu
International Research on Big-Data and Computer Technology: I-Robot Vol 9, No 1 (2025): April
Publisher : UNIVERSITAS DHARMA WACANA

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.53514/ir.v9i1.635

Abstract

Asuransi kesehatan adalah penjanjian antara dua belah pihak yang memiliki ikatan dan pertanggung jawaban antara penyelenggara atau pengelola dana premi dari peserta dan penerima dalam pelayanan kesehatan. Berdasarkan laporan Survei Sosial Ekonomi Nasional tahun 2017 terdapat 40,59% tidak memiliki jaminan kesehatan. Dimana terdapat ada 6 provinsi yang masih dibawah 40% kepesertaan jaminan kesehatan. Penelitioan ini bertujuan  mengetahui pengaruh teknologi informasi terhadap kepemilikan asuransi kesehatan di Indonesia dengan desain cross sectional, dimana data yang digunakan merupakan Data SUSENAS 20217 dari Badan Pusat Statistik Indonesia. Hasil analisis bivariat menunjukkan 4 variabel independen (pekerjaan, penggunaan handphone, kepemilikan handphone, dan penggunaan internet) yang berhubungan terhadap Kepemilikan Asuransi Kesehatan. Variabel pekerjaan kategori bekerja dengan nilai OR terendah sebesar 0,98. Hasil analisis multivariat yang paling berhubungan adalah variabel penggunaan internet. Hal tersebut dapat dilihat dari nilai p-value 0,000, variabel penggunaan internet dengan kategori tidak menggunakan internet memiliki OR tertinggi sebesar 1,27. Variabel paling berhubungan dengan kepemilikan asuransi kesehatan adalah variabel penggunaan internet dengan nilai OR tertinggi (1,27). Hasil penelitian ini dapat memberikan rekomendasi kebijakan kepada pemerintah untuk terus berupaya meningkatkan kajian peran teknologi informasi terhadap asuransi kesehatan.  
Pelatihan Kreatif Pembuatan Sabun Cuci Piring Berbasis Ekstrak Alami Citrus aurantium untuk Peningkatan Keterampilan Guru IPA SMP Kabupaten Pringsewu Lampung Variyana, Yeni; Fitria, Murni; Silmi, Fadian Farisan; Saputra, Anggi; Elsyana, Vida; Hanifah, Windia
Jurnal Pengabdian Pada Masyarakat Vol 10 No 2 (2025): Jurnal Pengabdian Pada Masyarakat
Publisher : Universitas Mathla'ul Anwar Banten

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30653/jppm.v10i2.1258

Abstract

Peningkatan permintaan produk rumah tangga yang ramah lingkungan telah memicu perlunya alternatif bahan baku alami, terutama untuk produk pembersih seperti sabun cuci piring. Banyak produk sabun cuci piring komersial mengandung bahan kimia sintetis yang dapat berdampak negatif terhadap lingkungan dan kesehatan, terutama pada pewangi yang digunakan. Sebagai alternatif yang lebih aman dan ramah lingkungan, ekstrak Citrus aurantium dapat digunakan sebagai bahan dasar dalam pembuatan sabun cuci piring karena mengandung senyawa aktif yang memiliki sifat antibakteri dan memiliki aroma segar alami. Kegiatan pengabdian ini bertujuan untuk meningkatkan keterampilan para guru di Kabupaten Pringsewu dalam memanfaatkan bahan lokal dan ramah lingkungan untuk pembuatan sabun cair cuci piring. Pelatihan dilakukan dengan metode partisipatif dan interaktif, melibatkan 40 guru IPA SMP yang tergabung dalam Musyawarah Guru Mata Pelajaran (MGMP) IPA SMP Pringsewu. Kegiatan ini meliputi penyuluhan materi, praktik langsung, dan evaluasi hasil. Hasil pengisian kuisioner pada peserta pelatihan sebanyak 39 orang (97%) menyatakan mampu meningkatkan keterampilan dan pengetahuannya pada pembuatan sabun cuci piring berbasis ekstrak Citrus aurantium dengan baik. Selain meningkatkan keterampilan, kegiatan ini diharapkan dapat mendorong kesadaran peserta akan pentingnya penggunaan bahan alami dan mendukung ekonomi lokal melalui peluang usaha mandiri berbasis produk alami. The growing demand for eco-friendly household products has led to the need for alternative natural raw materials, especially for cleaning products like dishwashing soap. Many commercial dishwashing soaps contain synthetic chemicals that can negatively impact the environment and health, particularly due to the fragrances used. As a safer and more environmentally friendly alternative, Citrus aurantium extract is used as a base ingredient in dishwashing soap production due to its antibacterial active compounds and natural fresh scent. This initiative aims to enhance the skills of teachers in Pringsewu Regency in utilizing local and environmentally friendly materials to make liquid dishwashing soap. The training was conducted using participatory and interactive methods, involving 40 junior high school science teachers from the Science Teachers Working Group (MGMP IPA) in Pringsewu. The activities included material counselling, hands-on practice, and results evaluation. Based on questionnaire responses from participants, 39 out of 40 trainees (97%) reported significant improvement in their skills and knowledge regarding the production of dishwashing soap using Citrus aurantium extract. Besides skill improvement, this activity is expected to raise participants' awareness of the importance of using natural materials and support the local economy through self-sustained business opportunities based on natural products.
Heating Rate Behaviour Pyrolysis of Empty Fruit Bunches : Kissinger Kinetic Analysis Rezki, Amelia Sri; Wulandari, Yeni Ria; Hanifah, Windia; Oktaviani , Lahara
Indonesian Journal of Chemical Analysis (IJCA) Vol. 8 No. 2 (2025): Indonesian Journal of Chemical Analysis
Publisher : Universitas Islam Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20885/ijca.vol8.iss2.art5

Abstract

Biomass waste such as Empty Fruit Bunches (EFB), a byproduct of palm oil production in Indonesia, represents a promising renewable energy resource. Pyrolysis, a thermochemical conversion process, transforms this waste into valuable products and energy sources. This study uses the Kissinger kinetic model to investigate how a stepwise heating rate analysis, under both catalytic and non-catalytic conditions, influences the pyrolysis behaviour of EFB. Pyrolysis experiments were conducted in a batch reactor at 300 °C, 350 °C, and 400 °C, with and without adding a catalyst (aluminium white) at a 1:2 catalyst-to-feedstock ratio. Heating rates were calculated at 10 °C intervals, and the activation energy (Ea) was determined using the Kissinger kinetic model. The results indicate that, with the presence of a catalyst, the heating rate increases with temperature, while without a catalyst, the rate tends to decrease. Moreover, the catalyst substantially reduces the activation energy, from 12.046 kJ/mol (non-catalytic) to 10.957 kJ/mol (catalytic), indicating its effectiveness in enhancing thermal decomposition and facilitating pyrolysis with lower energy requirements.
Penyisihan Cadmium dalam Sintesis Air Limbah Industri dengan Proses Adsorpsi Batch Menggunakan Zeolit Alam Widyaningrum, Sri Rahayu; Faizatin Nadya Roza; hanifah, windia; assalami, Abrar
Chemical Engineering Journal Storage (CEJS) Vol. 5 No. 05 (2025): Chemical Engineering Journal Storage (CEJS)-October 2025
Publisher : LPPM Universitas Malikussaleh

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29103/cejs.v5i05.23567

Abstract

Kadmium merupakan logam berat yang paling berbahaya karena tidak dapat terurai secara hayati namun keberadaannya saat ini banyak ditemukan pada air limbah industri. Kadmium dapat dilepaskan ke lingkungan melalui aliran limbah cair yang biasanya mengalir ke sungai dengan baku mutu yang tidak sesuai untuk lingkungan sekitar, sehingga diperlukan penelitian dalam penyisihan logam berat terlarut. Metode adsorpsi merupakan salah satu metode yang dapat dilakukan untuk mengurangi pencemaran logam berat. Penelitian ini dilakukan dengan adosrpsi batch yang bertujuan untuk mengetahui kesetimbangan adsorpsi menggunakan adsorben zeolit alam. Data kesetimbangan yang digunakan adalah dengan menggunakan model isoterm Langmuir dan isoterm Freundlich, didapatkan bahwa isoterm Freundlich lebih dominan dibandingkan dengan sisoterm Langmuir dengan nilai koefisien determinasi (R2) adalah 0,997, kapasitas adsorpsi pada permukaan zeolit alam terhadap logam kadmium sebesar 1,618942 mg/g serta nilai n sebesar 2,437484. Efisiensi Penyisihan Kadmium mengalami kenaikan seiring dengan penambahan massa zeolit alam yang disebabkan bertambahnya luas permukaan yang belum menjerap kadmium dengan persentasi penyisihan tertinggi adalah 99,948 %
Ekstraksi Kapulaga (Amomum Cardamomum) Menggunakan Metode Microwave Assisted Hydrodistillation (MAHD) : Analisis Optimasi dan Kinetika Variyana, Yeni; Hanifah, Windia; Wulandari, Yeni Ria; Gelegar, Iyappateya
Angkasa: Jurnal Ilmiah Bidang Teknologi Vol 15, No 2 (2023): November
Publisher : Institut Teknologi Dirgantara Adisutjipto

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.28989/angkasa.v15i2.1881

Abstract

Penggunaan microwave-assisted hydrodistillation (MAHD) perlu diterapkan untuk menciptakan green technique pada ekstraksi biji kapulaga (Amomum cardamomum) dari Lampung. Kondisi operasi dengan daya microwave 300, 450, dan 600 W; rasio F/S 0,1; 0,15; 0,2 g/ml; waktu ekstraksi 30,60, dan 90 menit; ukuran bahan baku dihaluskan (serbuk ± 5 mesh). Selanjutnya, optimasi titik optimum dari yield ekstraksi menggunakan Response Surface Methodology (RSM). Dari hasil penelitian melaporkan bahwa ekstraksi minyak kapulaga menggunakan metode MAHD dengan yield tertinggi pada variabel daya microwave 600 W, F/S 0,15 g/ml, dan waktu ekstraksi selama 90 menit sebesar 3,2423%. Penentuan kondisi optimum melalui desain RSM pada ekstraksi minyak kapulaga yaitu 503,650 W, 0,119 g/ml, dan 81 menit sebesar 3,332%. Adanya respon model dari RSM melaporkan bahwa error rates antara data eksperimen dengan nilai prediksi <0,05%. Selain itu, analisis kinetika ekstraksi model kinetika orde satu mampu menggambarkan hasil eksperimen secara efektif dalam proses ekstraksi minyak kapulaga dengan metode MAHD.
Formation of Phosphate Crystals from Cow Urine Using Aeration System Batch Reactor Fadilah, Reza; Hanifah, Windia; Cendekia, Devy; Ramandani, Adityas Agung
CHEMICA: Jurnal Teknik Kimia Vol. 10 No. 2 (2023): August 2023 [Available online since October 02, 2023]
Publisher : Universitas Ahmad Dahlan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26555/chemica.v10i2.26595

Abstract

The waste generated from the livestock sector is cow urine containing nitrogen, sulfur, phosphate, ammonium, sodium, manganese, iron, silica, chlorine, magnesium and calcium. The aim of this research is to reduce phosphate levels which will have an impact on the environment caused by cow urine which contains phosphate and ammonium and forms phosphate crystals using a batch reactor with an aeration system. The results of wastewater treatment using a batch reactor produce precipitate in the form of phosphate crystals which can be used as fertilizer for plants. This study used a completely randomized design (CRD) with two repetitions, namely with a comparison of the rate of aeration (air flow) 1 Lpm, 1.5 Lpm and 2 Lpm with the time used, namely 0 minutes, 60 minutes, 120 minutes, 180 minutes and 240 minute. Based on research that has been done, the highest aeration rate (air flow) in phosphate removal in cow urine waste is at 1 Lpm air flow with a time of 240 minutes and a phosphate removal efficiency of 84.8822%. Meanwhile, at an air flow of 1.5 Lpm with a time of 60 minutes and a phosphate removal efficiency of 95.4315%. At an air flow of 2 Lpm with a time of 240 minutes, the removal efficiency can only be 34.3421%. The content of phosphate crystals obtained from the XRF results was obtained at 3.173%. At an air flow of 2 Lpm with a time of 240 minutes, the removal efficiency can only be 34.3421%. The content of phosphate crystals obtained from the XRF results was obtained at 3.173%. At an air flow of 2 Lpm with a time of 240 minutes, the removal efficiency can only be 34.3421%. The content of phosphate crystals obtained from the XRF results was obtained at 3.173%.
Optimasi Konsentrasi NaCl dan Waktu Inkubasi terhadap Kandungan Asam Amino dan Total Padatan Terlarut pada Cacing Tanah (Lumbricus rubellus) dalam Reaktor Anaerob Hanifah, Windia; Ningrum, Sri Rahayu Widya; Junaidi, Edi
REACTOR: Journal of Research on Chemistry and Engineering Vol. 6 No. 1 (2025)
Publisher : Politeknik ATI Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.52759/reactor.v6i1.19

Abstract

In Indonesia, earthworms specifically Lumbricus rubellus are generally underutilized, often used only as fishing bait and not yet fully optimized for their potential as a protein source. This study aimed to optimize the extraction of protein from Lumbricus rubellus using variations in NaCl concentration and incubation time. The extraction process was conducted using the Response Surface Methodology (RSM) with a Central Composite Design (CCD), involving two independent variables: NaCl concentration (3%, 6%, and 9%) and incubation time (24, 48, and 72 hours). The measured responses were dissolved protein, total dissolved solids (TDS), and pH of the extract. The results showed that the optimal condition for protein extraction was at 3% NaCl concentration and 24 hours of incubation, yielding the highest level of dissolved protein. The highest TDS was recorded at 45.5 ppm under the condition of 9% NaCl and 24-hour incubation, while the lowest TDS was 34.3 ppm at 9% NaCl and 72 hours. The pH values ranged from 4.18 to 4.47, with the highest pH observed at 3% NaCl and 24 hours. These findings demonstrate that both NaCl concentration and incubation time significantly influence the efficiency of protein extraction from Lumbricus rubellus, with lower concentrations and shorter times generally producing better results.
Industrial wastewater treatment using venture injector type Micro-bubble aeration as a reduction of dissolved Iron (Fe2+) levels Efendi, Dimas Amirul Mukminin Nur; Ramandani, Adityas Agung; Cendekia, Devy; Hanifah, Windia
Journal of Natural Sciences and Mathematics Research Vol. 9 No. 2 (2023): December
Publisher : Faculty of Science and Technology, Universitas Islam Negeri Walisongo Semarang

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

Abstract

Water quality problems that are often encountered, especially by-product wastewater resulting from industrial processes that do not meet the requirements for wastewater quality standards. Iron levels in wastewater can cause the water to turn brownish yellow and produce an unpleasant odor, which of course has a big impact on the environment. Therefore, it is necessary to implement a treatment process to reduce the iron level in the water, ensuring that the water is safe when discharged into the environment. The purpose of this research is to analyze the initial parameters of temperature, pH, TDS, TSS, dissolved oxygen (DO) and dissolved iron (Fe2+) in industrial waste water and then wanted to know whether the venture injector type micro bubble aeration process was able to increase the value of dissolved oxygen (DO) and decrease the dissolved iron content (Fe2+) in wastewater and to know the micro bubble type aeration process Venture injectors are the best to use. The research was conducted with an experimental design using a completely randomized design (RAL) with two factors: air flow (2 LPM, 4 LPM, and 6 LPM) and aeration time (0 minutes, 15 minutes, 30 minutes, 45 minutes, and 60 minutes), each with two repetitions. In the results of the initial parameter analysis, the pH value was 8.02 (alkaline), the temperature value was 28°C, the TDS value was 1548.3 mg/L, the TSS value was 291 mg/L, the DO value was 0.1 mg/L and dissolved iron (Fe2+) of 7.453 mg/L. After conducting research, it was found that the venture injector type micro bubble aeration process was able to increase the value of dissolved oxygen (DO) and reduce dissolved iron (Fe2+) in industrial waste water, the best increase in dissolved oxygen (DO) at 6 LPM air flow for 60 minutes was able to increase oxygen dissolved (DO) to 2.40 mg/L. The most efficient and effective reduction in the value of dissolved iron (Fe2+) at 6 LPM air flow with a time of 15 minutes was able to reduce the value of dissolved iron by 84.42%.
Co-Authors Adib, Asraf Wa anggi saputra Ariski Putra, Feby assalami, Abrar Cendekia, Devy Efendi, Dimas Amirul Mukminin Nur Elsyana, Vida Fadian Farisan Silmi Fadilah, Reza Faizatin Nadya Roza Fitria, Murni Gelegar, Iyappateya Junaidi, Edi Muhammad Reza Redo Islami Ningrum, Sri Rahayu Widya Oktaviani , Lahara Phelia, Arlina Ramandani, Adityas Agung Rezki, Amelia Sri Rhea Alvita, Livia Sari, Nita Pita Teguh, Dedi Variyana, Yeni Widyaningrum, Sri Rahayu Wulandari, Yeni Ria