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All Journal NUSANTARA: Jurnal Pengabdian Kepada Masyarakat Jurnal Riset Rumpun Ilmu Teknik (JURRITEK) Jurnal Teknik dan teknologi tepat guna Jurnal Keilmuan dan Aplikasi Teknologi Industri
Mariza Syahyuda, Nelsy
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Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Engineering Industrial & Manufacturing Engineering Social Sciences

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Sosialisasi Potensi Dan Peluang Kerja Di Kabupaten Lima Puluh Kota Nelvi, Afni; Hisni Rahmi; Marlina Amsya, Riam; Fadhly, Ahmad; Nofriadiman Nofriadiman; Elmawati Elmawati; Ervil, Riko; Mariza Syahyuda, Nelsy
Nusantara: Jurnal Pengabdian kepada Masyarakat Vol. 3 No. 4 (2023): November : Jurnal Pengabdian kepada Masyarakat
Publisher : Pusat Riset dan Inovasi Nasional

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55606/nusantara.v3i4.1936

Abstract

Based on data from the West Sumatra energy and mineral resources service, it is stated that Limapuluh Kota Regency has the potential for rocks (andesite, granite, limestone, marble) and metallic minerals (gold and lead). This huge natural potential requires good management so that it can develop and requires potential human resources as well. This is the background for socializing opportunities and potential job opportunities in Limapuluh Kota Regency. The socialization explains what potential mining resources exist in Limapuluh Kota Regency along with the job opportunities that exist in managing these resources. The target of this socialization is to open the minds of high school students in terms of the natural potential that their region has and to open up the students' insight in choosing the science they will study in college, so that as sons/daughters of the region they can contribute to the management and development of their region.
Efektivitas Rekayasa Komposter Semi Anaerob Skala Rumah Tangga Sawir, Hendri; Mariza Syahyuda, Nelsy
Jurnal Teknik dan Teknologi Tepat Guna Vol. 1 No. 2 (2022): Jurnal Teknik dan Teknologi Tepat Guna
Publisher : Riset Sinergi Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62357/j-t3g.v1i2.120

Abstract

Composter Engineering. The research method uses the treatment of the number of semi-anaerobic composter oxygen channels with 3 different oxygen holes. The results showed that the lowest temperature was obtained on repetition 1 for composter 6 holes with a temperature of 31.64°C and the highest for repetition 2 on composter 8 holes were 32.85°C. The lowest pH was obtained on repetition 1 for composter 10 holes with a pH of 5.66 and the highest for repetition 3 on composter 6 holes was 6.55. The results of the characteristics of compost fertilizer were obtained from the analysis of time, water content, phosphorus (P2O5), potassium, carbon, nitrogen, and C/N ratio. The conclusion was obtained, a semi-anaerobic composter was produced with 3 types of holes, namely 6 holes, 8 holes, and 10 holes with a composter tube capacity of 60 liters, having dimensions of 40 cm in diameter with a height of 60 cm and for the time the composter obtained the ideal compost was a composter with several holes the most is 10 holes with the results obtained which are 15-16 days compared to 6 holes 28 days and 8 holes 23 days. It is recommended to use materials that are not too wet which will inhibit the rate of decomposition and the presence of a pungent odor.
Evaluasi Pengolahan Sampah Organik Lembaga Pengolahan Sampah (LPS) Kelurahan Air Tawar Timur Mariza Syahyuda, Nelsy; Irawan, Andi
Jurnal Teknik dan Teknologi Tepat Guna Vol. 1 No. 2 (2022): Jurnal Teknik dan Teknologi Tepat Guna
Publisher : Riset Sinergi Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62357/j-t3g.v1i2.121

Abstract

Garbage that is disposed of at the Air Cold Disposal Site (TPA) does get treatment upon arrival there. With the sanitary landfill method, inorganic waste is piled up in each different zone. Meanwhile, the collected organic waste is processed into compost. However, as the population of Padang City increases, the amount of waste also increases. In this case, the cold water TPA itself will gradually run out of capacity. From the results of the analysis of the amount of waste generation carried out, it was found that the average amount of waste generated at the Waste Management Institute (LPS) in Air Tawa Timur Village was 1,815.3 kg/day. While the volume accommodated by the Temporary Disposal Site (TPS) is 6,831 m3
Pemanfaatan Tanaman Kiambang sebagai Agen Fitoremediasi untuk Penetralan Air Asam Tambang Hisni Rahmi; Restu Permana; Nelsy Mariza Syahyuda; Restu Juniah
JURAL RISET RUMPUN ILMU TEKNIK Vol. 4 No. 2 (2025): Agustus : Jurnal Riset Rumpun Ilmu Teknik
Publisher : Pusat riset dan Inovasi Nasional

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55606/jurritek.v4i2.5548

Abstract

The pH value parameter in the mineral acid water of a coal mining company in South Sumatra is below the set environmental quality standards. The results of measuring the pH value using a pH meter at the inlet are 4.9 which is still below the environmental quality standard of 6-9. Therefore, it is necessary to make efforts to manage the environment before water is discharged into water bodies, one of which is by utilizing kiambang plants as phytoremediation agents in neutralizing mine acid water. This study aims to analyze changes in mine acid water quality and analyze the effectiveness of mine acid water neutralization. The initial quality of mine acid water for pH parameters was 4.9 TDS of 376 mg/l, Fe of <0.1 mg/l, and Mn of 3 mg/l. After the phytoremediation process, the water quality change for pH parameters was 6.6 and Mn was 0.05 mg/l. The neutrality effectiveness of mine acid water increased the pH by 34.69% and the effectiveness of reducing Mn levels by 98.33%. This kiambang plant can be a recommendation for phytoremediation agents for companies considering its availability around the company
Pemanfaatan Tongkol Jagung sebagai Adsorben Dalam Penurunan  COD Dan TDS Air Limbah Tambak Udang Lisha, Sri Yanti; Syahyuda, Nelsy Mariza; Erdelia, Ghufairah Putri
Jurnal Sains dan Teknologi: Jurnal Keilmuan dan Aplikasi Teknologi Industri Vol. 24 No. 1 (2024): Regular Issue
Publisher : SEKOLAH TINGGI TEKNOLOGI INDUSTRI PADANG

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36275/gbjrx019

Abstract

Air limbah tambak udang memiliki kandungan COD dan TDS yang tinggi, apabila di buang langsung ke perairan akan menyebabkan pencemaran seperti yang terjadi di perairan Sungai Carocok Anau Tarusan, Sumatera Barat. Salah satu metode yang dapat digunakan untuk      menurunkan nilai parameter tersebut adalah proses adsorpsi dengan memanfaatkan limbah tongkol jagung    sebagai adsorben. Penelitian ini dilakukan dengan variasi massa adsorben 0,5 gr ; 1 gr ; 1,5 gr dengan waktu pengadukan 120 menit, kecepatan pengadukan 200 rpm dan ukuran adsorben 100 mesh. Hasil penelitian menunjukkan efisiensi penyisihan COD dan TDS tertinggi didapatkan pada masa adsorben 1,5 gram yaitu 71,11% dan 51,31%. Pada kapasitas adsorpsi COD dan TDS didapatkan hasil kapasitas adsorpsi tertinggi pada massa adsoren 0,5 gram yaitu 910,2 mg/gr dan 3532,8 mg/gr. Persamaan isoterm adsorpsi yang sesuai pada parameter COD adalah isoterm langmuir (R2=0,917), menunjukkan bahwa adsorpsi terjadi pada lapisan yang menggambarkan adsorpsi kimia, sedangkan persamaan isoterm adsorpsi yang sesuai pada parameter TDS adalah Isoterm Freundlich (R2 = 0,938), menunjukkan bahwa adsorpsi terjadi pada lapisan multilayer yang menggambarkan adsorpsi fisika.
Evaluasi Dampak Lingkungan dalam Pengelolaan Limbah Pertambangan Cressendo, Hedsing; Fitria Rahmadhani Z, Suci; Retongga, Nofrohu; Intan Yustisia Rahmalina, Annisa; Nelvi, Afni; Mariza Syahyuda, Nelsy; Handayani, Suci
Jurnal Sains dan Teknologi: Jurnal Keilmuan dan Aplikasi Teknologi Industri Vol. 25 No. 1 (2025): Regular Issue
Publisher : SEKOLAH TINGGI TEKNOLOGI INDUSTRI PADANG

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36275/6b9xvs41

Abstract

Pengelolaan limbah pertambangan batubara merupakan aspek kritis untuk mencegah dampak negatif terhadap lingkungan, terutama pencemaran air. Tujuan penelitian ini adalah untuk Mengevaluasi kualitas air limbah berdasarkan parameter pH, TSS, Mn, dan Fe, Menganalisis kapasitas Settling Pond dalam mengurangi potensi pencemaran, dan Memberikan rekomendasi untuk optimalisasi pengelolaan limbah pada PT. X. Metode penelitian menggabungkan studi literatur, survei lapangan, dan analisis kuantitatif terhadap parameter pH, TSS, Mn, dan Fe. Hasil menunjukkan bahwa pengelolaan limbah oleh Perusahaan X telah memenuhi standar Perda Kalimantan Timur No. 2 Tahun 2011, dengan nilai pH 8,02, TSS 3 mg/L, serta konsentrasi Fe dan Mn di bawah 0,02 mg/L. Namun, pemantauan rutin dan peningkatan kapasitas Settling Pond direkomendasikan untuk memastikan keberlanjutan. Temuan ini menegaskan pentingnya pengolahan limbah terstruktur dalam mitigasi dampak lingkungan pertambangan.
Co-Authors Andi Irawan Elmawati Elmawati Erdelia, Ghufairah Putri Fadhly, Ahmad Hendri Sawir, Hendri Hisni Rahmi Intan Yustisia Rahmalina, Annisa Lisha, Sri Yanti Nelvi, Afni Nofriadiman, Nofriadiman Nofrohu Retongga Restu Juniah Restu Permana Riam Marlina A Suci Fitria Rahmadhani Z Suci Handayani, Suci