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All Journal Ruang Journal of Community Based Environmental Engineering and Management Specta Journal of Technology Journal of Urban Planning Studies ADMA: Jurnal Pengabdian dan Pemberdayaan Masyarakat Journal of Social Research Compact: Spatial Development Journal Jurnal Teknologi Lingkungan
Yorika, Rahmi
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Pola Pengelolaan Sampah Berdasarkan Persepsi Masyarakat Di Permukiman Atas Air Kelurahan Klandasan Ilir Balikpapan Kota Sofyar, Nadia Larasati; Yorika, Rahmi
Ruang Vol 10, No 1 (2024): Ruang
Publisher : Department of Urban and Regional Planning, Faculty of Engineering, Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/ruang.10.1.17-26

Abstract

Berdasarkan Instrumen Strategi Sanitasi Kota tahun 2021 sampah yang telah dihasilkan oleh masyarakat di Kelurahan Klandasan Ilir adalah sebanyak 5.316 ton sampah, dan terdapat jumlah sampah tidak terkelola sebesar 31,07%. Permasalahan yang terdapat di Permukiman Atas Air adalah masyarakat  melakukan penumpukan sampah skala Domestik, kurangnya kesadaran masyarakat pada kondisi lingkungan, dan tidak ada sistem pengelolaan pemilahan sampah. Tujuan penelitian ini untuk mengetahui faktor-faktor yang berpengaruh terhadap sistem pengelolaan sampah berdasarkan persepsi masyarakat di permukiman atas air Kelurahan Klandasan Ilir. Metode analisis yang digunakan berupa analisis deskriptif dan analisis faktor. Berdasarkan hasil penelitian, diketahui karakteristik sistem pengelolaan sampah di permukiman atas air Kelurahan Klandasan Ilir tidak memiliki organisasi pengelolaan sampah yang terbentuk, pada 7 RT tidak ada yang melakukan pemilahan sampah, RT 28, RT 29, RT 32, RT 36, RT 50, dan 59 melakukan pewadahan sampah berupa kantung plastik dan RT 30 melakukan pewadahan sampah berupa bak sampah, dari 7 RT hanya RT 30 yang melakukan pengumpulan sampah di TPS, untuk pengangkutan sampah seluruh RT telah terlayani oleh jasa pengangkutan sampah oleh pemerintah, seluruh RT telah dilakukan kegiatan yang dilakukan pemerintah, dari 7 RT hanya RT 30 yang melakukan pemungutan retribusi swadaya, berdasarkan kegiatan pengelolaan seluruh RT berupa kerja bakti, berdasarkan kebiasaan masyarakat seluruh RT aktif dalam kegiatan pengelolaan sampah, berdasarkan sikap positif dari 7 RT hanya RT 30 yang memiliki tempat sampah, berdasarkan bentuk keperdulian bahwa masyarakat di RT 28, RT 30, RT 36, RT 50, dan RT 59 sudah cukup baik dalam menjaga kebersihan lingkungan. Faktor yang berpengaruh signifikan berdasarkan persepsi masyarakat adalah pewadahan sampah, pengumpulan sampah, kegiatan pengelolaan sampah, keperdulian terhadap sampah, dan sikap positif.Kata kunci: Pengelolaan sampah, Permukiman Atas Air, Persepsi Masyarakat
Pengelolaan Sampah dan Pengenalan Metode Ecobrick pada Warga RT 35 Kelurahan Damai Kecamatan Balikpapan Kota Fitriani, Yustina; Yorika, Rahmi
ADMA : Jurnal Pengabdian dan Pemberdayaan Masyarakat Vol 3 No 2 (2023): ADMA: Jurnal Pengabdian dan Pemberdayaan Masyarakat
Publisher : LPPM Universitas Bumigora

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30812/adma.v3i2.2532

Abstract

Waste or garbage produced by humans is actually not a problem if humans have a good awareness and understanding of how to manage it. However, in reality, public awareness and understanding of waste and a good waste management system have not yet been realized. The method used in this program is through 2 stages. The first stage is preparation. It is done by observing to identify problems at the location. The second stage is the implementation of programs. At this stage, there are 3 main activities, namely the socialization of good waste management, introduction of the ecobrick method, and working together to clean the environment. The partner of this program is RT 35 Damai Village, Balikpapan District. The implementation of the activities carried out for approximately 12 weeks.The sustainability of this activity has the potential to occur, because the society is very enthusiastic. Their next plan is to make ecobricks that can be used as chairs for gathering. Mutual assistance activities also have a potential to be carried out periodically.
Identifikasi Layanan Distribusi Air Bersih Domestik di Kelurahan Mugirejo, Kota Samarinda (Studi Kasus: RT 11, 12, 13, dan 14) Akmalunnisaa, Shoffi; Yorika, Rahmi; Sitaresmi, Devi Triwidya; Kadri, Mohtana Kharisma; Syafitri, Elin Diyah
COMPACT: Spatial Development Journal Vol 3 No 1 (2024): COMPACT
Publisher : Perencanaan Wilayah dan Kota, Institut Teknologi Kalimantan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35718/compact.v3i1.1126

Abstract

Kelurahan Mugirejo merupakan salah satu kelurahan yang termasuk di dalam wilayah administrasi Kota Samarinda. Sebagian besar wilayah di Kelurahan Mugirejo, khususnya RT 11, 12, 13, dan 14 belum mendapatkan layanan distribusi air bersih dari Perumdam. Masyarakat cenderung memanfaatkan air tanah dan membeli air bersih untuk memenuhi kebutuhan air bersih domestik, Besarnya pengaruh musim terhadap ketersediaan air tanah menjadikan kebutuhan air bersih domestik masyarakat di wilayah penelitian tidak tercukupi. Selain itu, wilayah penelitian yang didominasi berada di kelas kemiringan lereng yang curam turut memengaruhi besarnya debit air untuk memenuhi kebutuhan air bersih domestik. Tujuan dari penelitian ini adalah untuk merumuskan arahan pemenuhan kebutuhan air bersih domestik di wilayah penelitian. Proses yang dilakukan adalah identifikasi layanan distribusi air bersih domestik dengan metode deskriptif dan perhitungan proyeksi jumlah penduduk. Hasil yang didapatkan adalah ketersediaan infrastruktur layanan distribusi air bersih di wilayah penelitian masih belum memadai.
Pemetaan Kawasan Rawan Bencana Banjir dan Penentuan Jalur Evakuasi dengan Metode Network Analysis di Kecamatan Sangatta Utara Aswad Janfari, Al; Hidayat, Arief; Yorika, Rahmi; Mustofa, Umar
Journal of Urban Planning Studies Vol 4 No 3 (2024): Journal of Urban Planning Studies, Juli 2024
Publisher : Fakultas Teknik Universitas Bosowa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35965/jups.v4i3.619

Abstract

This study aims to map the flood evacuation route in North Sangatta District. Several analyzes were used in this study to achieve the objectives to be achieved, first of all analyzing the level of vulnerability to floods in North Sangatta District by using the overlay method. In determining the route used network analyst method. Based on the results of the analysis that has been done, it is found that the level of vulnerability to flooding is divided into three, namely low, medium and high. Evacuation routes obtained 22 evacuation route directions with 9 evacuation location points.
Analisis Variasi Ukuran Partikel Biomassa Cangkang Kelapa Sawit dan Tandan Kosong Kelapa Sawit (TKKS) terhadap Karakteristik Refuse Derived-Fuel (RDF) Riza Hudayarizka; Wulandari, Agustina; Ariani, Ismi Khairunnissa; Yorika, Rahmi
SPECTA Journal of Technology Vol. 8 No. 3 (2024): SPECTA Journal of Technology
Publisher : LPPM ITK

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35718/specta.v8i3.1212

Abstract

Energy consumption in Indonesia is still mostly dependent on fossil fuels like coal, leading to their gradual depletion. Therefore, there is a need for environmentally friendly alternative energy sources from biomass waste, such as Refuse Derived-Fuel (RDF). Biomass waste with a high calorific value, like palm kernel shells and empty palm kernel bunches (EFB), is promising as RDF raw material. The size of the particles affects the characteristics of RDF because it impacts the structure and composition of RDF pellets. The tested composition ratios of palm kernel shells, EFB, and adhesives were (90:0:10), (80:10:10), (70:20:10), (60:30:10), and (50:40:10), with particle sizes of 60, 80, and 100 mesh. The RDF characteristics evaluated included moisture content, ash content, volatile matter, fixed carbon, and calorific value. The best RDF composition was found to be 70% palm kernel shells, 20% empty palm kernel bunches, and 10% adhesive at a particle size of 60 mesh, resulting in a moisture content of 5.2%, ash content of 4.64%, volatile matter of 78.89%, fixed carbon of 9.64%, and a calorific value of 4404.32 cal/g. XRD analysis indicates that RDF contains amorphous carbon, silica, and, with the addition of EFB, contributes to the potassium content. SEM analysis shows that larger particle sizes of the raw material form larger pores in RDF compared to smaller particle sizes.
Arahan Peningkatan Kinerja Saluran Drainase pada Koridor Jalan Barito Kelurahan Simpang Tiga Kota Samarinda Setyawan, Trisna Adji; Yorika, Rahmi
Ruang Vol 10, No 2 (2024): Ruang
Publisher : Department of Urban and Regional Planning, Faculty of Engineering, Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/ruang.10.2.80-89

Abstract

Kelurahan Simpang Tiga dalam Dokumen Rencana Tata Ruang Wilayah Kota Samarinda tercatat sebagai kawasan rawan banjir, di mana salah satu instrumen pengendalian banjir yang digunakan adalah pengelolaan sistem drainase terpadu. Penelitian ini bertujuan untuk memberikan arahan peningkatan kinerja saluran drainase dengan tiga langkah sasaran: (1) Menghitung kinerja teknis saluran drainase berdasarkan nilai kemampuan drainase, (2) Menganalisis faktor sosial yang mempengaruhi kinerja drainase, dan (3) Merumuskan program peningkatan kinerja saluran drainase. Berdasarkan analisis teknis, jaringan drainase dinilai melalui waktu konsentrasi, intensitas curah hujan, dan koefisien aliran gabungan untuk menentukan debit limpasan. Semakin tinggi koefisien aliran, semakin besar debit limpasan, yang pada akhirnya akan mempengaruhi kapasitas dan kinerja drainase. Ketika debit limpasan melebihi kapasitas drainase, kondisi drainase dinilai buruk. Hasil penelitian menunjukkan bahwa kinerja teknis drainase di lokasi penelitian bernilai negatif, yang berarti drainase tidak berfungsi dengan baik. Pada kondisi eksisting, banyak endapan lumpur, pasir, dan sampah yang menyumbat aliran, serta dimensi penampang yang tidak seragam menyebabkan genangan. Selain itu, rendahnya kesadaran masyarakat dalam pemeliharaan drainase memperburuk situasi. Berdasarkan kebijakan Pemerintah Daerah dan temuan sebelumnya, disusun program peningkatan kinerja drainase yang meliputi pembangunan ulang dimensi saluran, revitalisasi drainase dengan partisipasi masyarakat, perencanaan saluran drainase dan sanitasi terpadu, serta penetapan regulasi yang mengatur peran serta masyarakat dalam pengelolaan drainase.
Coagulation-Flocculation of Tofu Wastewater using Natural Coagulant of Chempedak (Artocarpus integer) Seed Anifah, Eka Masrifatus; Sholikah, Umi; Ariani, Ismi Khairunnissa; Yorika, Rahmi; Raharti, Henny Widya
Jurnal Teknologi Lingkungan Vol. 25 No. 2 (2024)
Publisher : BRIN Publishing (Penerbit BRIN)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55981/jtl.2024.1678

Abstract

Limbah cair tahu mencemari badan air dan menyebabkan bau tidak sedap di lingkungan. Koagulasi-flokulasi adalah metode efektif untuk menyisihkan kontaminan di limbah cair tahu karena metode ini memiliki efisiensi tinggi dan kebutuhan energi rendah. Namun, penggunaan koagulan kimia menghasilkan lumpur yang berbahaya, sehingga koagulan dari bahan alami lebih disukai karena aman untuk lingkungan dan manusia. Penelitian ini bertujuan menganalisis potensi ekstrak biji cempedak untuk menyisihkan COD, TSS, dan kekeruhan pada limbah cair tahu. Biji cempedak diekstrak menggunakan n-heksana dan NaCl untuk meningkatkan karakteristik koagulan. Eksperimen dilakukan secara batch menggunakan jar-tes. Dosis yang digunakan adalah 1,5–4 mL/L dengan pengadukan cepat 120 rpm selama 3 menit, pengadukan lambat 60 rpm selama 15 menit, dan sedimentasi 60 menit. Hasil penelitian menunjukkan bahwa koagulan biji cempedak dapat menurunkan kekeruhan dan TSS, tetapi meningkatkan konsentrasi COD. Gugus fungsi hidroksil dan karboksil memegang peranan penting dalam proses koagulasi. Kenaikan dosis koagulan dapat meningkatkan efisiensi penyisihan kekeruhan dan TSS. Dosis berlebih dapat menyebabkan resuspensi yang meningkatkan kekeruhan air. Dosis optimum untuk menyisihkan kekeruhan dan TSS di limbah cair tahu adalah 2,5 mL/L pada pH 9 dengan efisiensi penyisihan 78%. Efisiensi penyisihan TSS sebesar 77% didapatkan pada dosis 3,5 mL/L. Abstract The tofu wastewater contaminates water bodies and causes unpleasant odors to the environment. Coagulation-flocculation is an effective method to remove contaminants because of its high removal efficiency and low energy requirement. However, the use of chemical coagulants generates a significant amount of toxic sludge. Thus, a natural coagulant is more favorable because it is biodegradable and safe for human health. The objective of this study is to analyze the performance of chempedak seed extract to remove chemical oxygen demand (COD), total suspended solids (TSS), and turbidity in tofu wastewater. Chempedak seed was extracted using n-hexane and NaCl to improve the coagulant characteristics. The experiment was conducted in the batch system using a jar test apparatus. The experiment was carried out on a dosage range of 1.5–4 mL/L with a flash mixing rate of 120 rpm for 3 minutes, slow mixing of 60 rpm for 15 minutes, and sedimentation for 60 minutes. The result proved that the chempedak seed coagulant could reduce turbidity and TSS but increase COD concentration. The hydroxy and carboxy functional groups play a crucial role in coagulation activity. The increasing coagulant dosage increased the removal efficiency of turbidity and TSS. Overdosing can influence resuspension conditions that increase final turbidity. The optimum dosage to remove turbidity and TSS in tofu wastewater was 2.5 mL/L at a pH of 9 with a removal efficiency of 78%. The TSS removal efficiency of 77% was achieved at a dosage of 3.5 mL/L.
Penyisiahan Kadar Fostaf Air Limbah Laundry Menggunakan Eichhornia crassipes Sebagai Agen Fitoremediasi Basransyah, Basransyah; Yorika, Rahmi; Beelyada Diwirya, Agnes
SPECTA Journal of Technology Vol. 9 No. 1 (2025): Vol. 9 No. 1 (2025): SPECTA Journal of Technology
Publisher : LPPM ITK

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35718/specta.v9i1.1213

Abstract

Wastewater from laundry is produced by detergents containing main ingredients that are not easily decomposed naturally, such as Sodium Dodecyl Benzene Sulfonate and Sodium Tripolyphosphate. Water hyacinth (Eichhornia crassipes) functions as a phytoremediator that can absorb organic and inorganic substances. This study aims to assess the efficiency of reducing phosphate concentration in waste and to analyze the effect of water hyacinth mass and the addition of aeration on reducing phosphate concentration in laundry liquid waste. Wastewater samples were taken from Laundry X in Gunung Sari Ulu Village, Central Balikpapan, with a phosphate content of 0.63 mg/L/day. This study used variations in the mass of water hyacinth of 200 grams, 300 grams, and 500 grams with 15 liters of wastewater. The results of the phytoremediation study using water hyacinth plants with a mass of 200 grams, 300 grams, and 500 grams, as well as the addition of aeration, can reduce phosphate concentrations by 33.59%, 27.67%, and 30.67% on the 3rd day. The variation in the mass of water hyacinth and the addition of aeration showed a significance value > α (0.05); 0.665 for the mass variation test, and 0.058 for the addition of aeration test. Variations in the mass of water hyacinth plants and the addition of aeration did not significantly affect the removal of phosphate levels in laundry liquid waste
Performance of Rapid Sand Filter Dual Media for Microplastic Removal in the Water: The Effect of Microplastic Size and Effective Size of Filter Media Wulandari, Marita; Marpaung, Kevin; Prasaningtyas, Asri; Yorika, Rahmi; Harfadli, Muhammad Ma'arij; Zulfikar, Ainun
Journal of Community Based Environmental Engineering and Management Vol. 8 No. 1 (2024): March 2024
Publisher : Department of Environmental Engineering - Universitas Pasundan - Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23969/jcbeem.v8i1.12502

Abstract

Microplastics (MPs) significantly damage the environment and human health, leading to a growing global concern. MPs have been detected not only in the natural environment but also in the drinking water treatment process. One of the configurations of the drinking water treatment unit is filtration. Only a few research studies have been published on microplastic removal in the water system. This study was conducted to determine the performance of a rapid sand filter (RSF) in removing microplastics in water with a variation in the effective size (ES) of silica sand and microplastic size. In this study, microplastics are artificially made with size variations of < 400 μm and >400 μm. The filtering uses two variations in the adequate size (ES) of silica sand, namely 0.4 mm and 0.7 mm. At the same time, anthracite is only a control variable with ES = 0.69 with a flow speed of 4 m / h and an observation time of 30, 60, 90, and 120 minutes. The results show that the filter media ES 0.4 has the highest efficiency values of 91.30% for the microplastic size MPs <400 µm and 95.80 % for the larger microplastic >400 µm. In addition, the average percentage removal of ES 0.7 mm was 77.24 % for the size of MPs <400 µm and 95.77% for the size of Mps >400 µm. Gaining insight into the mechanisms involved in removing microplastics from drinking water is essential for developing more effective techniques for eliminating them.  
Bioremediation of Phenol in Synthetic Tobacco Industry Liquid Waste Using Pseudomonas Putida Yorika, Rahmi; Ariani, Ismi Khairunnissa; Hanifah , Althofina Hawwa
Journal of Social Research Vol. 4 No. 9 (2025): Journal of Social Research
Publisher : International Journal Labs

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55324/josr.v4i8.2723

Abstract

Cigarette industry wastewater contains high phenol levels (100 mg/L), exceeding the regulatory limit of 0.5 mg/L (Minister of Environment Regulation No. 5/2014). Phenol is toxic, carcinogenic, and resistant to natural degradation, posing severe environmental and health risks. Existing treatments like ozonation (15.45% efficiency) and adsorption (60–80%) face limitations such as low efficiency and high operational costs. This research aimed to evaluate the bioremediation of synthetic tobacco wastewater using Pseudomonas putida, focusing on the effects of bacterial concentration (3–7%) and nutrient levels (0–2%) on phenol removal efficiency. A batch-culture experiment was conducted under controlled conditions (30°C, 150 rpm, 120 hours). Phenol concentration was measured via UV-Vis spectrophotometry, and bacterial growth was monitored using OD600. Data were analyzed using one-way ANOVA. The highest phenol removal (68%) occurred at 5% bacterial concentration and 2% nutrients, with OD600 = 1.000, indicating optimal bacterial growth. Nutrient variations did not significantly affect efficiency, but temperature fluctuations and carbon catabolite repression were identified as potential limiting factors. Pseudomonas putida offers a sustainable solution for phenol-laden wastewater, achieving near-compliance with regulatory standards. Future studies should optimize environmental controls and scale up the process for industrial applications.
Co-Authors Achmad, Fariz Agustina Wulandari Akmalunnisaa, Shoffi Anifah, Eka Masrifatus Ariani, Ismi Khairunnissa Aswad Janfari, Al Basransyah, Basransyah Beelyada Diwirya, Agnes Bunga', Samuel Elin Diyah Syafitri Hanifah , Althofina Hawwa Harfadli, Muhammad Ma'arij Ida Ayu Putu Sri Widnyani Intan Dwi Wahyu Setyo Rini Marpaung, Kevin Maulana, Melisa Triandini Mohtana Kharisma Kadri Mustofa, Umar Prasaningtyas, Asri Raharti, Henny Widya Rahendaputri, Chandra Suryani Riza Hudayarizka Setyawan, Trisna Adji Sholikah, Umi Sitaresmi, Devi Triwidya Sofyar, Nadia Larasati Wulandari, Marita Zulfikar, Ainun