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Kajian Sifat Fisika-Kimia Air Bahang dan Indeks Pencemaran di Perairan PLTU Sumbawa Barat Amirul Hilmi; Andi Maria Ulfa; Muh. Iman Darmawan
Kappa Journal Vol 5 No 1 (2021): Juni
Publisher : Universitas Hamzanwadi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29408/kpj.v5i1.3110

This research examines the physical and chemical properties of the potential contamination of condenser cooling water (heat water) at the 2x7 MW West Sumbawa Steam Power Plant. The results showed that the hot water had met the predetermined quality standards, namely a pH of 8.21, a temperature of 38.50C and a content of free chlorine (Cl2) of 0.03 mg / L. There was an increase in sea water temperature in a radius of 17 meters east and west by 80C from 280C to 360C. Direct discharge of hot water has the potential to pollute the marine prawn environment around the 2x7 MW West Sumbawa PLTU. From the results of the study, it was found that the temperature of the hot water had met the specified quality standard, which was 40oC, but direct disposal caused the sea water temperature to rise, exceeding the set sea water temperature quality standard of 320C and the temperature increase should not be more than 20C from the temperature. at first.The status of sea water quality due to the entry of hot water is determined using a pollution index. From the calculation results obtained PIj of 1.125 at the sample point Outfall 2, meaning that the sea water conditions at a radius of 17 meters are lightly polluted. As a form of control and prevention of pollution due to the entry of high temperature hot water, continuous monitoring is necessary and it is necessary to create a mixing pool between sea water and hot water before the heat is discharged into the sea.

Development of laboratory work module for production of soap based on local resources as the integration of chemistry lessons with workshop and entrepreneurship Andi Maria Ulfa; Amirul Hilmi; Isna Rezkia Lukman
Jurnal Pijar Mipa Vol. 17 No. 1 (2022): January 2022
Publisher : Department of Mathematics and Science Education, Faculty of Teacher Training and Education, University of Mataram

The study aims to develop and test the feasibility of a locally developed soap-making module based on local resources. The research method used is research and development (R&D), which is adapted from the Borg & Gall R&D method. There are ten stages of research with three stages of testing/assessment. Stage I assessment by experts (chemistry/chemistry learning, economics/economics learning, language, and graphic design), stage II assessment by peer reviewers/colleagues, and stage III assessment by chemistry teachers and teachers of crafts and entrepreneurship. The assessment results by experts got a total score of 58, which was in the good category. The assessment results by economists/learning economics got a total score of 72, which was in the very good category. The result of the assessment by the linguist got a total score of 57 in the very good category. Finally, the result of the assessment by the graphic design expert got a score of 39 in the good category. The second stage of the assessment by five peer reviewers received an average total score of 69.6 in the good category, while the assessment results by the chemistry teacher and PKwu were 72.6 and 74 in the very good category, respectively. The overall assessment results show that the module is in the good and very good categories; therefore, the module is feasible to be developed and used further. While the results of the assessment by the chemistry teacher and PKwu, respectively, were 72.6 and 74, with a very good category. The overall assessment results show that the module is in the good and very good categories, so it can be concluded that the module is feasible to be developed and used further.

Analisis Proksimat, Kandungan Sulfur dan Nilai Kalor dalam Penentuan Kualitas Batubara Amirul Hilmi; Andi Maria Ulfa; Sulaimansyah Sulaimansyah
Indonesian Journal of Engineering (IJE) Vol 1 No 2 (2021): Edisi Maret
Publisher : Fakultas Teknik Universitas Nahdlatul Ulama NTB

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (190.224 KB)

Abstrak: Penelitian ini bertujuan untuk menganalisis kualitas batubara yang digunakan sebagai bahan bakar di PLTU 2x7 MW Sumbawa Barat berdasarkan analisis proksimat, kandungan sulfur dan nilai kalor. Batubara yang dianalisis diambil dari luaran coal banker (belt feeder). Sampel batubara kemudian dipreparasi sebelum dianalisis, meliputi pengurangan ukuran sampel, penggerusan dan pengayakan. Sampel batubara diuji kualitasnya meliputi analisis proksimat, kandungan sulfur dan nilai kalor. Dari hasil analisis diperoleh nilai kalor yang berbeda-beda antara S1, S2 dan S3, secara berurutan sebesar 4259 Kkal/Kg, 4297 Kkal/Kg dan 4416 Kkal/Kg. Nilai kalor sampel batubara dipengaruhi oleh rasio antara besaran analisis proksimat dengan persentase sulfur. Abstract: This study aims to analyze the quality of coal used as fuel in PLTU 2x7 MW West Sumbawa based on proximate analysis, sulfur content and heating value. The analyzed coal is taken from the coal banker output (belt feeder). The coal sample is then prepared before being analyzed, including reducing the sample size, grinding and sieving. Coal samples were tested for quality including proximate analysis, sulfur content and heating value. From the analysis, it was found that the different heating values between S1, S2 and S3 were respectively 4259 Kcal / Kg, 4297 Kcal / Kg and 4416 Kcal / Kg. The calorific value of coal samples is influenced by the ratio between the proximate analysis and the percentage of sulfur.

Training of learning video making on the equivalency programme at SPNF SKB Boto, West Sumbawa Regency Hasanuddin Hasanuddin; Puryadi Puryadi; Agus Jayadi; Hari Asgar; Amrussalam Amrussalam; Junaidi Efendi; Amirul Hilmi; Andi Maria Ulfa; Sulaimansyah Sulaimansyah; Sastrowijoyo Sastrowijoyo; Rahmawati Rahmawati; Miranti Nur Wulandari
Community Empowerment Vol 7 No 7 (2022)
Publisher : Universitas Muhammadiyah Magelang

The program aims to increase the insight and skills in the field of information and communication technology for tutors of the SPNF SKB Boto Equivalence Program, West Sumbawa Regency. This is expected to improve the quality of teaching and learning through the convenience of students in understanding the teaching material provided. The method of this training activity is carried out by the lecture method and independent practice in three stages, namely: delivery of basic material, training and practice demonstrations and evaluation. The result of this training video learning is increasing the understanding and insight of the participants in making learning videos and to be able to practice making simple learning videos so that they can support online learning in the SPNF SKB Boto environment, West Sumbawa Regency.

Meningkatkan Kemampuan Kognitif Kimia Siswa SMA Melalui Pengembangan Media Pembelajaran Berbasis Android Isna Rezkia Lukman; Andi Maria Ulfa
Jurnal Inovasi dan Teknologi Pembelajaran Vol 7, No 2 (2020)
Publisher : Universitas Negeri Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17977/um031v7i22020p157

Abstrak: Tujuan penelitian ini adalah untuk mengetahui kualitas media pembelajaran berbasis Android materi tata nama senyawa kimia mengetahui perbedaan peningkatan kemampuan kognitif siswa SMA yang menggunakan mediapembelajaran pembelajaran berbasis Android materi tata nama senyawa Kimia dengan pembelajaran menggunakan LKS. Metode yang diguankan dalam penelitian ini adalah R&D yang didaptasi model pengembangan Borg & Gall dan 4D. Hasil dari pengembangan media pembelajaran berbasis android pada materi tata nama senyawa menunjukkan bahwa media yang dikembangkan layak untuk diaplikasikan dan memiliki kualitas sangat baik, baik dari aspek materi ataupun media. Kemudian, media pembelajaran yang dikembangkan juga mampu meningkatkan Kemampuan Kognitif Siswa setelah diaplikasikan ke dalam pembelajaran. Hal ini terbukti dari hasil uji hipotesis yang menunjukkan adanya perbedaan peningkatan Kemampuan Kognitif Siswa yang menggunakan media yang dikembangkan dengan yang menggunakan LKS. Abstract: The purpose of this study was to determine the quality of Android-based learning media for chemical compound nomenclature material to know the differences in the cognitive ability enhancement of high school students who use Android-based learning media for chemical compound nomenclature materials by learning using LKS. The method used in this research is R&D adapted to the Borg & Gall and 4D development models. The results of the development of Android-based learning media on compound nomenclature material show that the media developed is feasible to be applied and has very good quality, both in terms of material and media aspects. Then, the learning media developed can also improve students' cognitive abilities after they are applied to learning. This is evident from the results of hypothesis testing which shows that there is a difference in the increase in students' cognitive abilities using developed media and those using LKS.

Peningkatan Kapasitas Produksi Ikan Air Tawar Melalui Manajemen Padat Tebar dan Manajemen Pemberian Pakan di Sekitar Danau Lebo, Taliwang, Sumbawa Barat Rangga Idris Affandi; Zaenal Abidin; Andre Rachmat Scabra; Andi Maria Ulfa; Anton; Suhardinata; Sahrul Alim; Nuri Muahiddah; Septiana Dwiyanti; Yuliana Asri
BERNAS: Jurnal Pengabdian Kepada Masyarakat Vol. 4 No. 4 (2023)
Publisher : Universitas Majalengka

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31949/jb.v4i4.6485

Danau Rawa Taliwang merupakan perairan air tawar yang terletak di Kabupaten Sumbawa Barat dan oleh masyarakat sekitar disebut Danau Lebo. Lebo memiliki berbagai macam jenis ikan air tawar yang dapat dikonsumsi oleh masyarakat. Hal tersebut mendorong penduduk sekitar danau untuk menjadi pembudidaya ikan air tawar dan membuat kelompok pembudidaya ikan, salah satunya kelompok pembudidaya ikan air tawar Desa Sampir dengan biota yang dibudidayakan yaitu ikan nila. Masalah yang dihadapi oleh kelompok pembudidaya ikan di sekitar Danau Lebo adalah ikan yang tumbuhnya terlalu lama sehingga mengakibatkan proses pemanenan menjadi mundur dan membuat rugi. Tujuan kegiatan ini adalah penerapan teknologi manajemen padat tebar dan manajemen pemberian pakan serta penerapan cara budidaya ikan yang baik (CBIB) sehingga kualitas sistem budidaya dapat diperbaiki. Metode yang digunakan dalam kegiatan pengabdian masyarakat adalah penyuluhan, pendampingan, dan evaluasi. Hasil dari pengabdian masyarakat ini yaitu telah dilakukan penyuluhan manajemen padat tebar dan manajemen pemberian pakan, pendampingan cara budidaya ikan yang baik (CBIB), serta evaluasi program pengabdian. Kesimpulan pengabdian masyarakat ini adalah kegiatan penyuluhan manajemen padat tebar dan manajemen pemberian pakan, pendampingan cara budidaya ikan yang baik (CBIB), serta evaluasi program pengabdian telah disampaikan. Dari kegiatan ini diharapkan nantinya target produksi budidaya dapat ditingkatkan.

Peningkatan Kapasitas Produksi Ikan Air Tawar Melalui Manajemen Padat Tebar dan Manajemen Pemberian Pakan di Sekitar Danau Lebo, Taliwang, Sumbawa Barat Rangga Idris Affandi; Zaenal Abidin; Andre Rachmat Scabra; Andi Maria Ulfa; Anton; Suhardinata; Sahrul Alim; Nuri Muahiddah; Septiana Dwiyanti; Yuliana Asri
BERNAS: Jurnal Pengabdian Kepada Masyarakat Vol. 4 No. 4 (2023)
Publisher : Universitas Majalengka

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31949/jb.v4i4.6485

Danau Rawa Taliwang merupakan perairan air tawar yang terletak di Kabupaten Sumbawa Barat dan oleh masyarakat sekitar disebut Danau Lebo. Lebo memiliki berbagai macam jenis ikan air tawar yang dapat dikonsumsi oleh masyarakat. Hal tersebut mendorong penduduk sekitar danau untuk menjadi pembudidaya ikan air tawar dan membuat kelompok pembudidaya ikan, salah satunya kelompok pembudidaya ikan air tawar Desa Sampir dengan biota yang dibudidayakan yaitu ikan nila. Masalah yang dihadapi oleh kelompok pembudidaya ikan di sekitar Danau Lebo adalah ikan yang tumbuhnya terlalu lama sehingga mengakibatkan proses pemanenan menjadi mundur dan membuat rugi. Tujuan kegiatan ini adalah penerapan teknologi manajemen padat tebar dan manajemen pemberian pakan serta penerapan cara budidaya ikan yang baik (CBIB) sehingga kualitas sistem budidaya dapat diperbaiki. Metode yang digunakan dalam kegiatan pengabdian masyarakat adalah penyuluhan, pendampingan, dan evaluasi. Hasil dari pengabdian masyarakat ini yaitu telah dilakukan penyuluhan manajemen padat tebar dan manajemen pemberian pakan, pendampingan cara budidaya ikan yang baik (CBIB), serta evaluasi program pengabdian. Kesimpulan pengabdian masyarakat ini adalah kegiatan penyuluhan manajemen padat tebar dan manajemen pemberian pakan, pendampingan cara budidaya ikan yang baik (CBIB), serta evaluasi program pengabdian telah disampaikan. Dari kegiatan ini diharapkan nantinya target produksi budidaya dapat ditingkatkan.

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