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Yenni Ruslinda
Universitas Andalas
Agriculture, Biological Sciences & Forestry Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Earth & Planetary Sciences Education Energy Engineering Environmental Science Industrial & Manufacturing Engineering Transportation

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Comparison of Composting Method using Black Slodier Fly Larvae and Takakura Method on Compost Quality and Quantity Rizki Aziz; Yenni Ruslinda; Hesti Anggia Pratiwi; Jumita Rahmi; Jonrinaldi Jonrinaldi
CIVED Vol. 11 No. 1 (2024): March 2024
Publisher : Universitas Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/cived.v11i1.511

Abstract

Organic waste needs to be processed so as not to pollute the environment. Processing of organic waste can be done through composting. This study aims to see the effect of composting method using BSF larvae and composting using takakura method on the quality and quantity of compost produced. The variety of waste types in this study consisted of variations A (65% vegetable waste + 35% fruit waste) and B (60% vegetable waste + 40% food waste). Bioconversion using BSF larvae aged 7 days with bidaily litter as much as 0.5 kg for 14 days. The results of the analysis of the quantity, maturity, and quality of variations A1, A2, B1 and B2 meet compost standards according to SNI 19-7030-2004. The most optimal variation of the study (A2 variation). This variation produces compost for (20 days), the quality of physical and macro elements has met the quality standards of domestic waste compost and the quantity of compost produced is more than 1.10 kg.
Optimasi Pemanfaatan Sampah Kertas Layak Jual di Kampus Universitas Andalas, Limau Manis Padang Yenni Ruslinda; Anita Pra Ramadhani; Hendra Gunawan
Jurnal Serambi Engineering Vol. 9 No. 4 (2024): Oktober 2024
Publisher : Faculty of Engineering, Universitas Serambi Mekkah

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Abstract

The increasing demand for paper products over time has led to a corresponding increase in the amount of paper waste generated. Andalas University Campus endorses the recycling concept through the establishment of an Integrated Waste Management Center (PPST), which encompasses the Andalas Enviro Waste Bank (BSEA). This center is designed to oversee the management of dry waste that is suitable for sale, with the proceeds from such sales being directed to third parties. This study examines the optimization of paper waste utilization at the Andalas University Campus in Limau Manis, Padang. The study referenced data on the generation, composition, and recycling potential of paper waste from the Unand campus, as well as existing conditions of paper waste management at each source, obtained through the distribution of questionnaires and interviews. The results of the calculations demonstrate that the quantity of paper waste suitable for sale on the Unand campus is 779.82 kg/day. The BSEA is responsible for the collection of this waste through the waste bank system. The study was conducted by creating three scenarios for the management of paper waste: (I) direct sales of paper waste without processing; (II) processing of cardboard waste into egg containers and other types of paper waste into recycled paper; and (III) processing of HVS paper waste and selling other paper waste. The results of the assessment, conducted using incremental IRR analysis and scoring methods, indicated that scenario III was the optimal management scenario for optimizing the utilization of marketable paper waste at the Andalas University Limau Manis Campus from a technical and financial perspective.
Characterization of Wastewater in The University Campus: A Case Study in Universitas Andalas, Indonesia Ruslinda, Yenni; Nur, Ansiha; Komala, Puti Sri; Leni, Leni; Regia, Rinda Andhita; Mardatillah, Regina
Dampak Vol 21, No 2 (2024)
Publisher : Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/dampak.21.2.18-26.2024

Abstract

This study aims to analyze wastewater characteristics at Universitas Andalas Campus Limau Manis Padang encompassing physical, chemical, and biological attributes, while comparing them to established quality standards and estimating mass loading. Wastewater samples were collected from various sources, including domestic and specific wastewater. Sampling locations and times were chosen based on peak activity. Physical analysis revealed temperature ranging from 27.32 to 31.5°C and TSS concentrations from 130.00 to 580.00 mg/L. Chemical parameters displayed significant variation, with pH values between 2.27 and 9.70, BOD5 concentrations spanning 108.46 to 506.59 mg/L, COD levels from 162.70 to 1,428.00 mg/L, and oil and grease content from 0.20 to 84.31 mg/L. N-total ranged from 47.07 to 309.16 mg/L, sulfate from 72.70 to 1,480.00 mg/L, and phosphate from 1.14 to 98.15 mg/L. Biological attributes showed total coliform counts exceeding 10,000 colonies per 1,000 mL, all surpassing quality standards. Notably, the BOD5/COD ratio indicated low biodegradable quality (values <0.5) for certain wastewater sources. Greywater emerged as the primary pollutant, with substantial mass loadings. Eventually, this study underscores the vital need for wastewater treatment before environmental discharge.Keywords: Characteristics, Domestic Wastewater, Campus, Quality Standards, Hazardous Wastewate 
Efektivitas Filtrasi Multi-Media dalam Menyisihkan TSS dan COD dari Air Bekas Wudhu Nur, Ansiha; Ruslinda, Yenni; Ananda, Dimas Rizki; Mardatillah, Regina
Jurnal Serambi Engineering Vol. 10 No. 1 (2025): Januari 2025
Publisher : Faculty of Engineering, Universitas Serambi Mekkah

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Abstract

This study aims to calculate the quantity of used wudhu wastewater at the Nurul Ilmi Mosque, Universitas Andalas, test the effectiveness of filtration in removing TSS and COD, and evaluate its potential use as non-potable water. Quantity measurements were carried out on Monday, Friday, and Sunday with triplicate tests. Filtration used a continuous PVC reactor (capacity 2.54 L) with an influent discharge of 2 gpm and 4 gpm. The filtration media consisted of activated carbon, zeolite sand, and silica sand. The results showed that the highest volume of used ablution water was on Friday at 35.865 ± 9.67 L/sec. TSS and COD removal at a discharge of 2 gpm and 4 gpm were 74.03% ± 2.98 and 76.19% ± 3.37, and 70.01% ± 2.98 and 70.01% ± 0.00, respectively. The 2 gpm discharge showed the best removal results, although the COD value did not meet the Quality Standards of PP No. 22 of 2021 (class 2). The t-test showed that the variation in discharge did not have a significant effect on the removal of TSS and COD (p>0.05). With its potential for utilization, it is recommended to extend the residence time at a discharge of 2 gpm so that COD meets the quality standards, so that used ablution water can be used as non-potable water.
Characterization of Wastewater in The University Campus: A Case Study in Universitas Andalas, Indonesia Ruslinda, Yenni; Nur, Ansiha; Komala, Puti Sri; Leni, Leni; Regia, Rinda Andhita; Mardatillah, Regina
Dampak Vol. 21 No. 2 (2024)
Publisher : Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/dampak.21.2.18-26.2024

Abstract

This study aims to analyze wastewater characteristics at Universitas Andalas Campus Limau Manis Padang encompassing physical, chemical, and biological attributes, while comparing them to established quality standards and estimating mass loading. Wastewater samples were collected from various sources, including domestic and specific wastewater. Sampling locations and times were chosen based on peak activity. Physical analysis revealed temperature ranging from 27.32 to 31.5°C and TSS concentrations from 130.00 to 580.00 mg/L. Chemical parameters displayed significant variation, with pH values between 2.27 and 9.70, BOD5 concentrations spanning 108.46 to 506.59 mg/L, COD levels from 162.70 to 1,428.00 mg/L, and oil and grease content from 0.20 to 84.31 mg/L. N-total ranged from 47.07 to 309.16 mg/L, sulfate from 72.70 to 1,480.00 mg/L, and phosphate from 1.14 to 98.15 mg/L. Biological attributes showed total coliform counts exceeding 10,000 colonies per 1,000 mL, all surpassing quality standards. Notably, the BOD5/COD ratio indicated low biodegradable quality (values <0.5) for certain wastewater sources. Greywater emerged as the primary pollutant, with substantial mass loadings. Eventually, this study underscores the vital need for wastewater treatment before environmental discharge.Keywords: Characteristics, Domestic Wastewater, Campus, Quality Standards, Hazardous Wastewate 
Evaluasi Pengelolaan Air Limbah Domestik Gedung Kuliah Bersama Universitas Andalas Saputri Sihombing, Wildani; Andika Putra, Syawal; Nur, Ansiha Ir.; Ruslinda, Yenni
Dampak Vol. 22 No. 1 (2025)
Publisher : Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/dampak.22.1.10-18.2025

Abstract

Domestic wastewater management on university campuses is a crucial aspect of supporting sustainable development. As a center of academic and non-academic activities, Universitas Andalas produces a significant volume of domestic wastewater from the daily activities of its 31,549 academic community members as of 2023. One of its key facilities is the Shared Lecture Building complex, consisting of 10 buildings (A–J), which applies a separated wastewater management system: greywater from floor drains and washbasins is discharged directly into the nearest drainage, while blackwater from toilets is channeled into septic tanks. Currently, Universitas Andalas lacks comprehensive data and planning related to its Domestic Wastewater Management System (SPALD), despite Government Regulation No. 22 of 2021 requiring domestic wastewater to be safely treated before discharge into water bodies. This study aims to evaluate and provide recommendations for an effective and efficient SPALD, specifically for the Shared Lecture Buildings. The method used involves field observations to collect data on the existing conditions. The results show that of the 19 septic tanks observed, 36.84% did not meet vent pipe requirements, 21.05% did not follow the appropriate desludging interval, and 42.11% lacked inspection openings. Furthermore, the effluent from these septic tanks is directly discharged into drainage channels without further treatment, posing a risk of contamination to surrounding water bodies and groundwater. This study is expected to serve as a basis for improving septic tank systems in accordance with SNI 2398:2017, so that wastewater management at Universitas Andalas can operate more optimally and sustainably.   Keyword: domestic wastewater; blackwater; greywater; SPALD; Universitas Andalas
Karakterisasi Air Kondensat AC sebagai Sumber Air Alternatif Sri Komala, Puti; Ruslinda, Yenni; Nur, Ansiha; Mardatillah, Regina; Salsabila, Srideva
Dampak Vol. 22 No. 1 (2025)
Publisher : Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/dampak.22.1.61-67.2025

Abstract

This study analyzes the potential to reuse AC condensate water in Andalas University. The research was conducted in the Rectorate Building, the Civil Engineering Department, and the Environmental Engineering Department. AC condensate water sampling was conducted in 8 locations from the Rectorate, Civil Engineering, and Environmental Engineering office buildings. The parameters analyzed were pH, DO, Turbidity, COD, Metals, E.coli, and Total Coliform. Water quality was compared with the Minister of Health Regulation Number 2 of 2023, World Health Organization (WHO) for Drinking Water Quality Standards and Government Regulation Number 22 of 2021 concerning implementing Environmental Protection and Management. The results of water quality testing show that in addition to the parameters of pH, DO, Turbidity, COD, and Metals that have met the quality standards, the levels of iron (Fe), COD, and Total Coliform exceed the quality standards of the Minister of Health Regulation Number 2 of 2023. Used AC water is not recommended for consumption as drinking water. However, condensate AC water can be used for several activities, such as watering plants, cleaning floors and specific areas, and flushing toilets. The AC condensate water characterization results show that iron (Fe), COD, and Total Coliform parameters exceed the quality standards for drinking water requirements. AC condensate water is not recommended for consumption as drinking water without prior treatment. Used AC water can be utilized for several activities, such as watering plants, cleaning the floor, and cleaning the toilet. Keyword: condensate water; office building; potential; water source
Kajian Pengolahan Sampah Makanan Menggunakan Larva Black Soldier Fly di Kampus Universitas Andalas Ruslinda, Yenni; Nur, Ansiha; Mardatillah, Regina; Rahayu, Resti; Dawne Ayesha Rizal, Pinkan; Ash Shalih, Shubhiy
Dampak Vol. 22 No. 2 (2025)
Publisher : Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/dampak.22.2.9-19.2025

Abstract

Pengolahan sampah makanan belum dilakukan di Pusat Pengolahan Sampah Terpadu (PPST) Kampus Universitas Andalas Limau Manis. Untuk itu dilakukan kajian terhadap pengolahan sampah makanan menggunakan Larva BSF dari aspek teknis, ekonomi dan lingkungan. Kajian aspek teknis dilakukan dengan menganalisis timbulan, komposisi, karakteristik sampah makanan yang berasal dari kantin dan Instalasi Gizi Rumah Sakit Universitas Andalas serta menganalisis kebutuhan lahan dan fasilitas. Kajian aspek ekonomi dilakukan dengan menghitung biaya investasi dan operasional, biaya pendapatan dari penjualan produk dan menganalisis kelayakan investasi. Kajian aspek lingkungan dilakukan dengan penilaian dampak lingkungan yang dilakukan responden yang terdiri dari tenaga peneliti dan praktisi dalam pengolahan sampah makanan dengan Larva BSF. Dari hasil kajian aspek teknis, ekonomi dan lingkungan diperoleh pengolahan sampah makanan menggunakan Larva BSF layak diterapkan di PPST Universitas Andalas dengan kapasitas pengolahan sebesar 112 kg/h dan kebutuhan lahan 9 m2. Biaya investasi yang dibutuhkan sebesar Rp13.117.000 dengan biaya operasional Rp38.006.400. Pendapatan dari penjualan produk diperkirakan sebesar Rp62.186.880. Hasil kelayakan investasi diperoleh nilai NPV Rp88.739.978, BCR 1,512, IRR 183%, dan PP 1 tahun 6 bulan.  Dari kuisioner diperoleh penilaian untuk dampak positif lebih besar dibandingkan penilaian untuk dampak negatif. Untuk itu direkomendasikan adanya kegiatan pemilahan sampah makanan di sumber, penyediaan parasarana dan sarana, peningkatan kadar air sampah makanan serta kerjasama dalam pemasaran produk yang dihasilkan. Kata Kunci: larva Black Soldier Fly, kajian teknis, kajian ekonomi, kajian lingkungan, sampah makanan
Co-Authors Ade Supratman Ananda, Dimas Rizki Andika Putra, Syawal Anita Pra Ramadhani Annisa Dwinta Anugrah Andikmon Ash Shalih, Shubhiy Dawne Ayesha Rizal, Pinkan Dina Fathia Putri Faren Fadila Putri Febri Kurnia Mulya Gunawan, Hendra Hesti Anggia Pratiwi Husna, Fitratul Indah Kurnia Asyura Jonrinaldi Jumita Rahmi Juwita Zurienra Laksono Trisnantoro Larasati Sekar Arum Leni Leni Lutfina Lutfina Mardatillah, Regina Nabila, Arum Nilda Tri Putr Novita Sari Nur Indah Lestari Nur, Ansiha Nur, Ansiha Ir. Puti Sri Komala Ragil Nur Permadi Regia, Rinda Andhita Regina Mardatillah Resti Ayu Lestari Resti Rahayu Rizki Aziz Salsabila, Srideva Saputri Sihombing, Wildani Slamet Raharjo Sri Komala, Puti Suci Mahdianti Taufiq Ihsan Vera Surtia Bachtiar