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All Journal International Journal of Advances in Applied Sciences Jurnal Teknik Sipil ASAS : Jurnal Hukum Ekonomi Syariah Jurnal Sosioteknologi REKAYASA Panrita Abdi - Jurnal Pengabdian pada Masyarakat Biosaintifika: Journal of Biology & Biology Education Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering) Jurnal Serambi Engineering International Journal of Community Service Learning Borneo International Journal of Islamic Studies Journal of Community Based Environmental Engineering and Management International Journal of Marine Engineering Innovation and Research Jurnal Teslink : Teknik Sipil dan Lingkungan Jurnal Alwatzikhoebillah : Kajian Islam, Pendidikan, Ekonomi, Humaniora Jurnal Teknologi Lingkungan Lahan Basah Borneo International Journal of Islamic Studies Journal of Educational Sciences Depik Jurnal Ilmu-Ilmu Perairan, Pesisir dan Perikanan Indonesian Journal on Learning and Advanced Education (IJOLAE)
Fitria, Laili
Faculty Of Engineering, Universitas Tanjungpura, Pontianak, Indonesia
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Utilization of domestic wastewater for the growth of microalgae Chlorella sp. Yolanda, Yuni; Hutasoit, Jenri P; Fitria, Laili; Anggamulia, Muh. Ilham; Putri, Anni Zahara; Pane, Fikryah Atikah; Nasution, Bagas Arya
Depik Jurnal Ilmu Ilmu Perairan, Pesisir, dan Perikanan Vol 14, No 3 (2025): SEPTEMBER 2025
Publisher : Faculty of Marine and Fisheries, Universitas Syiah Kuala

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.13170/depik.14.3.41376

Abstract

This study investigates the potential of using domestic wastewater as a growth medium for Chlorella sp. and examines how it affects water quality over a period of 24 days. The experiment was conducted using a Completely Randomized Design (CRD) with a single factor: four levels of domestic wastewater concentration0%, 25%, 50%, and 75%each tested in three replicates.The results showed that the highest biomass production occurred on day 8, reaching 0.337 mg/L in the 75% wastewater treatment (TR3), while the lowest was observed in the control group (C) at 0.210 mg/L. Statistical analysis using ANOVA followed by the Tukey test confirmed that the differences between treatments were significant (p 0.05). Correlation analysis showed a strong positive correlation between biomass and dissolved oxygen (DO, 0.949) and temperature (0.626), indicating that optimal light intensity and nutrient availability promote photosynthesis and biomass growth. In contrast, phosphate was negatively correlated with temperature (-0.738), suggesting that higher temperatures accelerate phosphate uptake by Chlorella sp. The study concludes that cultivating Chlorella sp. using domestic wastewater presents a sustainable solution for both biomass production and wastewater treatment. The microalgae help remove excess nutrients like nitrogen and phosphorus, enhancing water quality. However, as the algae decompose, they can also contribute to higher biological oxygen demand (BOD). This dual role underscores the promising potential of microalgae in promoting ecological wastewater management while supporting sustainable biomass production.Keywords:BiomassChlorella sp.Photobioreactorwastewater
ANALISIS POTENSI NILAI EKONOMI SAMPAH PLASTIK Lumbantobing, Valen Elflina; Fitria, Laili; Sutrisno, Hendri
Jurnal Alwatzikhoebillah : Kajian Islam, Pendidikan, Ekonomi, Humaniora Vol. 9 No. 1 (2023): Jurnal Alwatzikhoebillah : Kajian Islam, Pendidikan, Ekonomi, Humaniora
Publisher : Institut Agama Islam Sultan Muhammad Syafiuddin Sambas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37567/alwatzikhoebillah.v9i1.1663

Abstract

Coffee shop adalah suatu usaha yang dikelola secara komersial yang menawarkan para tamu minuman, khususnya minuman kopi sebagai menu utama dan makanan kecil dengan pelayanan dalam suasana tidak formal tanpa diikuti suatu aturan servis yang baku. Usaha coffee shop menghasilkan sampah plastik berupa gelas plastik dan sedotan plastik sehingga dapat mencemari lingkungan sekitar jika dibuang langsung tanpa adanya pengelolaan terlebih dahulu. Sampah plastik memiliki potensi sebagai sumber finansial menjadi sesuatu yang bernilai ekonomi. Pengelolaan yang dapat dilakukan yaitu memanfaatkan sampah tersebut menjadi sesuatu yang bernilai ekonomi. Penelitian ini bertujuan untuk menganalisis timbulan dan komposisi serta menganalisis potensi dan nilai ekonomi sampah plastik coffee shop di Kecamatan Pontianak Selatan. Untuk mendapatkan nilai ekonomi dilakukan dengan pengukuran timbulan sampah. Timbulan sampah diperoleh dari berat dan volume sampah rata-rata 8 hari berturut-turut dari 5 coffee shop di Kecamatan Pontianak Selatan. Pengukuran timbulan sampah menggunakan alat berupa bak pengukur 500 liter, timbangan, kantong plastik dengan volume 20 liter, dan meteran serta bahan yang digunakan yaitu sampah plastik yang dihasilkan dari coffee shop. Sampah plastik yang didapat dari Coffee shop tersebut akan dijual ke Bank Sampah Palem Asri. Hasil pengukuran sampah plastik pada coffee shop Segitiga Coffee memiliki timbulan sebesar 2,85 kg dengan nilai ekonomi sebesar Rp. 1.995. Coffee shop Kopi Koe memiliki timbulan sebesar 3,1 kg dengan nilai ekonomi sebesar Rp. 2.170. Coffee shop Koffein sebesar 0,9 kg dengan nilai ekonomi sebesar Rp 630. Coffee shop Ruang Tamu sebesar 1,35 kg dengan nilai ekonomi sebesar Rp. 945. Coffee shop Chara Coffee & Eatry sebesar 3,6 kg dengan nilai ekonomi sebesar Rp. 2.520.
Mandailing smoked fish cuisine: cultural, nutritional, and local wisdom insights Emilia, Esi; Haryana, Nila Reswari; Rosmiati, Risti; Mutiara, Erli; Fitria, Laili; Mulyana, Rachmat; Prayogo, Wisnu
International Journal of Advances in Applied Sciences Vol 14, No 4: December 2025
Publisher : Institute of Advanced Engineering and Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11591/ijaas.v14.i4.pp1166-1180

Abstract

This study explores the uniqueness of Mandailing traditional cuisine, focusing on the cultural and nutritional significance of its iconic smoked fish dishes, such as smoked fish rendang, smoked fish curry, smoked fish with chili sauce, and smoked fish with vegetables. These dishes showcase the traditional fish smoking practices developed as a preservation method, allowing the Mandailing community to adapt to the abundance of rivers and natural resources in their highland environment. Smoking fish not only extended its shelf life but also became a cornerstone of Mandailing culinary identity, reflecting the community’s ingenuity and resourcefulness. Mandailing cuisine is deeply influenced by neighboring culinary traditions from West Sumatra and North Tapanuli, resulting in a rich fusion of bold flavors, often characterized using coconut milk and fresh spices. The preparation of smoked fish combines traditional high-heat cooking techniques with unique flavor profiles that distinguish Mandailing dishes from other Indonesian cuisines. This research highlights the importance of Mandailing smoked fish practices in sustaining local food systems and preserving cultural heritage. By emphasizing both cultural and nutritional aspects, it underlines the relevance of these traditional practices in promoting food diversity, environmental sustainability, and the recognition of Indonesia’s rich culinary landscape.
Implementation Of Murabahah Contracts and Sharia Compliance in Islamic Financial Institutions Alhadiansyah, Alhadiansyah; Marnita; Fitria, Laili
ASAS Vol. 17 No. 02 (2025): Asas, Vol. 17, No. 02 Desember 2025
Publisher : Universitas Islam Negeri Raden Intan Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24042/

Abstract

This study examines legal issues concerning the implementation of murabahah contracts in Islamic financial institutions in Indonesia from the perspective of Islamic contract law. Murabahah is the most dominant financing instrument in Islamic banking, accounting for more than half of total financing portfolios. However, its operational practices often diverge from the normative requirements established by Islamic law, the fatwas of the National Sharia Council (DSN–MUI), and statutory regulations. Employing a normative legal research method with statutory, conceptual, and Islamic jurisprudential approaches, this study identifies several recurring legal problems, including the use of conventional interest benchmarks in margin determination, improper application of murabahah bil wakalah, and the rescheduling of payment obligations with additional margins. These practices potentially introduce elements of riba, gharar, and unjust enrichment, thereby undermining the validity of the contract under Islamic law. The study argues that non-compliance with sharia principles renders murabahah contracts legally defective and contradicts the objectives of Islamic law (maqāṣid al-sharī‘ah). This research contributes by offering a systematic legal analysis of sharia compliance gaps in murabahah practices and proposing normative recommendations for operational standardization and strengthened sharia supervision.
A Review: Green Life And Behavior Change for Net Zero by Non Governmental Organizations Wisnu Prayogo; Rachmat Mulyana; Janter Pangaduan Simanjuntak; I Wayan Koko Suryawan; Laili Fitria; Edo Barlian; Putri Lynna A. Luthan; Dion Awfa; Ahmad Daudsyah Imami; Rifka Noor Azizah; Ani Purwanti; Sitepu Amrina Rosyada; Vemi Ridantam; Zhilli Izzadati Khairuni
International Journal of Marine Engineering Innovation and Research Vol. 8 No. 3 (2023)
Publisher : Department of Marine Engineering, Institut Teknologi Sepuluh Nopember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j25481479.v8i3.5178

Abstract

Global warming and environmental issues are being caused by the overuse of fossil fuels and increased industrialization around the world, which has resulted in the production of greenhouse gases. As a result, it's crucial to reach net-zero carbon emissions. By balancing the total quantity of carbon dioxide or other greenhouse gas emissions over a specific period and taking actions that are ecologically responsible, net zero carbon emissions can be accomplished. For environmental sustainability to be successful, it must be able to influence people's attitudes and behavior toward the environment. To understand NGOs' obligations in supporting net-zero carbon emissions, this paper presents a methodical debate utilizing NGOs as case studies. The method is employed in this work by reviewing the body of primary and secondary research on the study issue. This essay initially lists different environmental NGOs organizations before categorizing and outlining some of the significant GHGs reduction initiatives made by these organizations. This essay also addresses key issues that must be addressed upon to achieve the best outcomes. This report gives a broad overview of the synergizing domains that NGOs around the globe work in to assist improvement environmental security.
Pengolahan Air Gambut dengan Media Filter Keramik Berpori (Peat Water Treatment Using Portable Ceramic Filter Media) Ayunata, Yudi; Fitria, Laili; Kadaria, Ulli
Jurnal Teknologi Lingkungan Lahan Basah Vol 8, No 2 (2020): Juli 2020
Publisher : Universitas Tanjungpura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26418/jtllb.v8i2.43030

Abstract

AbstractAreas characteristic of the soil peaty usually contains brown water, PH (3-5), humus acid, organic substances, and high iron. In this research samples of raw water from the river agreed II which has a pH of 5.67, organic substances 232.17 mg/L, color is 1,346 PT-CO, and Iron Metal (Fe) is 0.96 mg/L. Quality of the parameter is not qualified (PERMESKES No 32 the year 2017) hygiene sanitation and clean water. This study knows the effectiveness of porous ceramic filters with a mixture of eggshells, zeolite, and polyvinyl alcohol (PVA) in sintering at 220 oC for 6 hours. Mixed variation of eggshell, zeolite, and PVA made is type (I) 67.5%: 22.5%: 10%, type (II) 45%: 45%: 10%, and type (II) 22.5%: 67,5%: 10%. Results showed a porous ceramic filter with a mixture of eggshells, zeolite, and PVA for each type filter (I), type (II), and type (III) have the density of 2, 092gr/CM3, 2, 080gr/CM3, 2, 006gr/Cm3. Porosity of 18%, 43%, and 69% as well as flux 1305 L/m2. Jam, 1813 L/m2. Clock, and 2209 L/m2. Jam. The highest color loss effectiveness in type Filter (II) 40% from 1001 TCU to 592.5 TCU.   The type (I) effectiveness increases peat water pH from 5.67 to 6.84 by 17%. The highest efficacy organic substances Parameter type (II) amounted to 77% from 232.17 mg/L to 51.64 mg/L. turbidity of highest efficacy type (III) 48% of 29.6 mg/L to 15.35 mg/L. Iron Parameters Highest efficacy type (III) amounted to 53.12% from 0.96 mg/L to 0.45 mg/L and the highest effectiveness parameters of the type (III) of 78% from 139.44 mg/L to 59.91 mg/L.  Keywords: peat water, eggshells, ceramic filters, zeolite  Abstrak  Daerah karakteristik tanah bergambut biasanya mengandung air berwarna coklat, pH (3-5), berkadar asam humus, zat organik,dan   besi yang tinggi. Dalam penelitian ini sampel air baku dari sungai Sepakat II yang memiliki pH 5,67, zat organik 232,17 mg/L, warna adalah 1.346 pt-co, dan logam besi (Fe) adalah 0,96 mg/L. Kualitas parameter tersebut tidak memenuhi syarat (PERMESKES No 32 Tahun 2017) higiene sanitasi dan air bersih. Penelitian ini mengetahui efektivitas filter keramik berpori dengan campuran media cangkang telur, zeolit, dan Polivinil Alkohol (PVA) yang disintering dengan suhu 220 oC selama 6 jam. Variasi campuran bahan cangkang telur, zeolit, dan PVA yang dibuat adalah Tipe (I)   67,5 % : 22,5 % : 10%, Tipe (II)   45%:45% : 10%, dan Tipe (II) 22,5% : 67,5%:10%. Hasil menunjukan filter keramik berpori dengan campuran cangkang telur, zeolit, dan PVA untuk setiap filter Tipe (I), Tipe (II), dan Tipe (III) yaitu memiliki densitas sebesar 2,092gr/Cm3, 2,080gr/Cm3, 2,006gr/Cm3. Porositas sebesar 18%, 43%, dan 69% serta Fluks 1305 L/m2.jam, 1813 L/m2.jam, dan 2209 L/m2.jam. Penurunan warna efektivitas tertinggi pada filter Tipe (II) 40% dari 1001 TCU menjadi 592,5 TCU.   Tipe (I) efektivitas meningkatkan pH air gambut dari 5,67 menjadi   6,84 sebesar 17%. Parameter zat organik efektivitas tertinggi Tipe (II) sebesar 77% dari 232,17 mg/L menjadi 51,64 mg/L. Kekeruhan efektivitas   tertinggi Tipe (III) 48% dari   29,6 mg/L menjadi 15,35 mg/L. Parameter besi efektivitas tertinggi Tipe (III) sebesar 53,12 % dari 0,96 mg/L menjadi 0,45 mg/L dan parameter kesadahan efektivitas tertinggi Tipe (III) sebesar   78% dari 139,44 mg/L menjadi 59,91 mg/L.  Kata Kunci: peat water, eggshells, ceramic filters, zeolite
Fostering Green Skills in Vocational Students: The Impact of Learning Environment, Attitudes, and Competence Azahar, Ridho; Hariyanto, Valentinus Lilik; Prayogo, Wisnu; Fitria, Laili
Indonesian Journal on Learning and Advanced Education (IJOLAE) Vol. 8, No. 1, January 2026
Publisher : Universitas Muhammadiyah Surakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23917/ijolae.v8i1.11746

Abstract

Vocational education plays a crucial role in preparing a workforce that is adaptable to the demands of sustainable development. However, the green skills of vocational school students are still classified as moderate to low, indicating a gap between knowledge and sustainability practices. This research aims to analyse the influence of the learning environment, environmental attitudes, and cognitive competencies on the green skills of vocational school students. The study employs a quantitative approach with a correlational descriptive method, involving 60 students from the construction engineering program selected through simple random sampling. The instrument, in the form of a Likert scale questionnaire, was tested for validity and reliability and analysed using multiple linear regression. The identification results showed that 87% of students have a positive perception of the learning environment, 60% have a good environmental attitude, 22% demonstrate high cognitive competence, and 55% fall into the fairly good category. Statistically, environmental attitude has the most dominant influence (β = .659, p = .000), followed by the learning environment (β = .286, p = .027) and cognitive competence (β = .286, p = .039). The R² value of .761 indicates that the three variables affect students' green skills by 76.1%. These findings imply the importance of transforming vocational learning through the integration of a green curriculum, strengthening sustainable pedagogy, and collaborating with the green industry
Co-Authors Afifah Yusrina Agung Ananda Saugi Ahmad Daudsyah Imami Alhadiansyah Andriastuti, Bella Tri Anggamulia, Muh. Ilham Ani Purwanti Ani Purwanti Annisa Wulandari0 Arifin Arifin Arifin Arifin Atni Asdiantri Ayunata, Yudi Azahar, Ridho Azizah, Rifka Noor Azwir Anhar Bella Tri Andriastuti BEWA MULYATAMA Desmaiani, Herda Dhuhan Dhuhan Dhuhan Dhuhan Dhuhan Dian Rahayu Jati Dion Awfa Edo Barlian Edo Barlian Eka Pratama Kurniawan Emilia, Esi Erland Evansta Sulisuka Erli Mutiara Fairuza Marhamah Fitra Muthia Khanza Fitrianingsih, Yulisa Hafiz Achmad Fauzan Hariyanto, Valentinus Lilik Harry Wibowo Haryana, Nila Reswari Hendri Sutrisno Hendri Sutrisno Hilman, Zaki Hutasoit, Jenri P I Wayan Koko Suryawan Ikhwali, Muhammad Faisi Imami, Ahmad Daudsyah Istiqomah Shariati Zamani Janter Pangaduan Simanjuntak Janter Pangaduan Simanjuntak Jati, Dian Rahayu Jumiati Jumiati Jumiati Jumiati Kartini Idris Kiki Prio Utomo Kiki Prio Utomo Kurniawan, Eka Pratama Kusuma, Dhimas Aji Liza Syafitri Liza Syafitri Lufri Lufri Lumbantobing, Valen Elflina Marcelina Marcelina, Marcelina Marnita Maulana, Rezki Muammar Qadafi Muhammad Qarinur Muklis Muklis MULYATAMA, BEWA Mutiara Rizki Khatulistiwa Mutiara Rizki Khatulistiwa, Mutiara Rizki Nahesson H. Panjaitan Nasution, Bagas Arya Natalia Siska Novi Fitria Novi Fitria Novianti Novianti Novianti Novianti Novrianty, Irma Nur Novilina Arifianingsih Nurhayati Nurhayati Pandi M Pugel Pane, Fikryah Atikah Panjaitan, Nahesson Hotmarama Parabi, Astisza Syahla Ludmilla Prayogo, Wisnu Purnawan Purnawan Putri Lynna A. Luthan Putri Lynna A. Luthan Putri, Anni Zahara Rachma Yuwita Rachmat Mulyana Rahmawati Rahmawati Rahmawati Rahmawati, Rahmawati Rezki Maulana Rifka Noor Azizah Risma Pradina Kusuma Risti Rosmiati Rozy Medi Wilian Sarra Rahmadani Saugi, Agung Ananda Septiariva, Iva Yenis Siska, Natalia Sitepu Amrina Rosyada Sitepu Amrina Rosyada Siti Marsyah Putri Lestari Sri Sunarsih Sulisuka, Erland Evansta Suryawan, I Wayan Koko Sutrisno, Hendri Syafitri, Liza Syafrianto, M Khalid Syahrul Khairi Tri Rahayu Ulli Kadaria Ulli Kadaria Ulli Kadaria Ulli Kadaria Vemi Ridantam Vemi Ridantam Wilian, Rozy Medi Wisnu Prayogo Wisnu Prayogo Wisnu Prayogo Wulandari0, Annisa Yacub, Mirzal Yonky Dwi Putra Yonky Dwi Putra, Yonky Dwi Yulisa Fitrianingsih Yulisa Fitrianingsih Yuni Yolanda Zhilli Izzadati Khairuni Zul Pratomo, Dicky Reno