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All Journal Reaktor Jurnal Dampak Jurnal Sumberdaya Akuatik Indopasifik IJEMS (Indonesian Journal of Environmental Management and Sustainability) Jurnal Sains dan Teknologi: Jurnal Keilmuan dan Aplikasi Teknologi Industri Jurnal Serambi Engineering Serambi Engineering
Yommi Dewilda
Departemen Teknik Lingkungan, Fakultas Teknik, Universitas Andalas, Jalan Limau Manis, Padang, Sumatera Barat, Indonesia
Agriculture, Biological Sciences & Forestry Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Earth & Planetary Sciences Energy Engineering Environmental Science Industrial & Manufacturing Engineering Materials Science & Nanotechnology Public Health

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Dampak Pencemaran Mikroplastik di Wilayah Pesisir Laut Fadel Ikrar Jamika; Indang Dewata; Siti Maharani Nasution; Budhi Primasari; Yommi Dewilda
Jurnal Sumberdaya Akuatik Indopasifik Vol 7 No 3 (2023): Agustus
Publisher : Fakultas Perikanan dan Ilmu Kelautan, Universitas Papua

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.46252/jsai-fpik-unipa.2023.Vol.7.No.3.309

Abstract

Problems of environment life in the world are very diverse, including related pollution in coastal areas. Management coast and sea Each has its own complexity of problems, opportunities and challenges. One of the problems in coastal marine management is the problem of plastic waste pollution especially microplastics. The purpose of this research is to describe the image and impact of microplastics in coastal areas. The method used Is qualitative or review literature. Microplastic has experienced plastic degradation and a size diameter < 5mm. Source microplastic consists of namely primary and secondary. Microplastics enter coastal areas in several ways, such as flowing water from rivers, wind, and are carried by currents and some enter the sea through runoff. Pollution microplastic have broad impacts, among others health people, economy, tourism and aesthetics beach. Microplastics in the environment coast and sea cause serios damage to life sea, fish, death animal sea through winding and swallowing plastic debris.
Identifikasi Timbulan, Komposisi, Karakteristik dan Potensi Daur Ulang Limbah Padat Tanaman Hortikultura Feby Reyna Putri; Yommi Dewilda; Rizki Aziz
Jurnal Serambi Engineering Vol 8, No 1 (2023): Januari 2023
Publisher : Fakultas Teknik

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32672/jse.v8i1.5554

Abstract

Solid waste produced by vegetable crops has the potential to cause environmental pollution because it has not been managed properly. Sampling is done by purposive sampling method and SNI provisions 19-3964-1994. Units of waste generation in weight and volume are consecutively 0.315 kg / m2/ harvest and 2,509 L/ m2/ harvest. The generation of waste in Tanah Datar Regency in units of weight and volume is consecutively 51.793,009 tons/year and 363.490,429 m3/ year. The composition of pre-harvest waste in the form of agricultural waste is 50%, dry waste is 27%, and hazardous and toxic substance waste 23%. Composition of post-harvest waste in the form of agricultural waste 100%. The average weight of waste type is 0.205 kg/ L, water content 35.479%, volatile levels 62.482%, ash levels 1.243%, fixed carbon 0.796%, C / N ratio 16,580, and biodegradability fraction 74.273%. The recycling potential of pre-harvest waste for LDPE plastic types is 2,437% and compostable organic waste is 50,116%. The post-harvest recycling potential is 100% in the form of compostable organic waste. Based on the results, the waste produced has the potential to be reused, recycled, and processed by third parties specifically for hazardous and toxic substance waste.
Identifikasi Timbulan, Komposisi, Karakteristik, dan Potensi Daur Ulang Sampah Pertanian Tanaman Pangan di Kabupaten Lima Puluh Kota Nada Zhafirah Hendria; Yommi Dewilda; Rizki Aziz
Jurnal Serambi Engineering Vol 8, No 1 (2023): Januari 2023
Publisher : Fakultas Teknik

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32672/jse.v8i1.5606

Abstract

Abstract Lima Puluh Kota District is one of the dominant food crop-producing provinces in West Sumatera. This activity produces an amount of waste. The research was conducted at 15 points in the sub-district Lareh Sago Halaban with a purposive sampling method and based on SNI 19-3964-1994. The results showed the pre-harvest waste generation was 12,024,480 tons/year or 168,255,706 m3/year, whereas the post-harvest waste generation was 1,283,828,005 tons/year or 17,664,025,689 m3/year. The pre-harvest waste compositions 46.835% agricultural waste, 25.194% rubbish, and 28.020% agricultural hazardous waste, though the post-harvest waste was 100% agricultural waste. Physical characteristics obtained 0.232 kg/L of pre-harvest waste and 0.052 kg/L of post-harvest waste. Chemical characteristics equally proximate analysis with water content 36.9538%, volatile content 61.0327%, ash content 1.4870%, fixed carbon 0.5265%, and the C/N ratio obtained 18.0797. The biodegradability fraction was 65,7044%. The potential for recycling the pre-harvest waste was 52.413%, while the post-harvest waste was 100%. The recommendations will probably give, like reducing waste from chemical fertilizer packaging with organic fertilizer, utilizing packaging waste as a substitute for polybags, processing plant waste into compost, and processing agricultural hazardous waste to third parties.Keywords: characteristic, composition, food crop waste, recycling potentials, waste generation
Analisis Timbulan, Komposisi dan Potensi Daur Ulang Sampah Kabupaten Mandailing Natal Dewilda, Yommi; Aziz, Rizki; Hokiartha, Rendi; Rinaldi, Jon
Jurnal Serambi Engineering Vol. 10 No. 1 (2025): Januari 2025
Publisher : Faculty of Engineering, Universitas Serambi Mekkah

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Abstract

The level of waste management services in Mandailing Natal Regency is still low. Unserved communities manage their waste by burning it or dumping it into rivers. Mandailing Natal Regency does not yet have the data on solid waste generation and composition needed to formulate a waste management plan. This study aims to determine the amount of solid waste generation, composition and recycling potential in Mandailing Natal Regency. The sampling methodology is based on SNI 19-3964-1994. Domestic waste generation in weight units is 0.574 kg/person/day, while in volume units it is 2.357 litres/person/day. Non-domestic waste generation averages 0.289 kg/person/day in weight units and 2.616 litres/person/day in volume units. The composition of domestic waste is dominated by food waste with 41.33%, paper waste with 6.37%, plastic waste with 24.08%, textile waste with 2.59%, garden waste with 11.66%, metal with 4.64%, glass with 1.18% and other waste with 8.14%. The composition of non-domestic waste is as follows: food waste 38.69%, yard waste 9.14%, paper 14.04%, plastic 24.07%, textile 1.65%, glass 1.52%, metal 2.80% and other waste 8.09%. The components of domestic waste with recycling potential are food waste 82.75%, plastic 87.03%, paper 70.24%, glass 89.74% and metal 88.89%. The recycling potential of non-domestic waste is 78.78% for food waste, 90.36% for plastic waste, 75.36% for paper, 90.41% for glass and 76.06% for metal.
Studi Timbulan, Komposisi, Karakteristik dan Potensi Daur Ulang Sampah Stasiun Kereta Api di Kota Padang Yurizka Trialisa; Rizki Aziz; Yommi Dewilda
Jurnal Serambi Engineering Vol. 10 No. 2 (2025): April 2025
Publisher : Faculty of Engineering, Universitas Serambi Mekkah

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Abstract

The increase in the number of train stations in Padang City has an impact on the increase in the amount of waste generated, so it is necessary to know the amount of waste generated so that effective and efficient management can be carried out. This research aims to analyse the generation, composition, characteristics and recycling potential of waste in railway stations in Padang City and provide recommendations for appropriate waste management. The method in this research is based on SNI 19-3964-1994 on methods of collecting and measuring samples of urban waste generation and composition. The measurement results for the total waste generation at Padang City Railway Station were 316.08 kg/d or 0.316 tons/d. The composition of the station waste is 49.96% plastic waste, 20.42% food waste, 9.88% paper waste, 6.65% wood and garden waste, 0.63% metal/can waste and 12.46% other waste. The physical characteristics are the specific weight of the waste of 0.06 Kg/L. Chemical characteristics include water content 16.19%, volatile content 73.73%, ash content 8.80%, fixed carbon content 1.27% and C/N ratio 23.14%. The biological properties of the biodegradability fraction test were 58.55%. The recycling potential for food waste is 94.91%, yard waste 100%, paper waste 47.66%, plastic waste 86.78% and can/metal waste 100%. Recommendations for waste management in this study include sorting waste by type and using different labels or colours for waste containers.
The Pengaruh Penambahan Sekam Padi Pada Pembuatan Pelet Biomassa Eceng Gondok Menggunakan Metode TOSS: Pengaruh Penambahan Sekam Padi Pada Pembuatan Pelet Biomassa Eceng Gondok Menggunakan Metode TOSS Dewilda, Yommi; Goembira, Fadjar; Andini Putri, Zalwa; Noerhidayat, Arief
Dampak Vol. 22 No. 2 (2025)
Publisher : Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/dampak.22.2.20-30.2025

Abstract

ABSTRACT The Teknologi Olah Sampah di Sumbernya (TOSS) method can be an alternative to reduce biomass waste such as water hyacinth. The TOSS method converts water hyacinth waste into biomass pellets through three stages: shredding process, biodrying process, and pelletization process. Water hyacinth waste has a low calorific value so it is necessary to add other materials with higher calorific values such as rice husks. This research was conducted using TOSS method, incorporating AR124 bioactivator in biodrying process and the addition of rice husk during the pelletization process. This research aims to analyze and evaluate the biodrying process of water hyacinth waste using AR124 bioactivator through measurements of moisture content, temperature, shrinkage, odor, and duration of the biodrying process. In addition, the study also analyzed and evaluated the quality of water hyacinth biomass pellets without and with the addition of rice husk based on proximate analysis and calorific value according to the quality standards of SNI 8966: 2021 about Refused Derived Fuel (RDF) for Power Plants. The 10-day biodrying process showed a moisture content of 20.1%, pH 7.0, shrinkage of 3 cm, highest temperature of 29°C on the first day, and no odor since day 5. Variations in the ratio between water hyacinth and rice husk, namely D (1:0), A1 (1:1), A2 (1:2), and A3 (1:3), were tested in triplicate. The results showed that all variations met the quality standards in accordance with SNI 8966:2021. A3 was the best variation with a moisture content of 3.11%, ash content of 17.83%, fixed carbon of 16.68%, volatile substances of 62.39%, and calorific value of 16.92 MJ/kg (4,041 kcal/kg). The addition of rice husk is proven to increase the calorific value of biomass pellets from standard class 3 to class 2 according to SNI 8966:2021. Keyword: bioactivator AR124, biomass pellets, rice husks, teknologi olah sampah di sumbernya (TOSS), water hyacinth
Co-Authors Aditya Riansyah Andini Putri, Zalwa Annisa Maryam Busrita Exgia Putri Fadel Ikrar Jamika Fadjar Goembira Feby Reyna Putri Firsti Listya Darfyolanda Hafizhul Khair Hasnureta Hasnureta Hokiartha, Rendi Indang Dewata M Zulfan Mhd. Fauzi Mikel Faklin Monica Saputri Nada Zhafirah Hendria Noerhidayat, Arief Primasari, Budhi Puti Sri Komala Reri Afrianita Reri Afrianita Rinaldi, Jon Rizki Aziz Siti Maharani Nasution Suarni Saidi Abuzar Tivany Edwin Vera Surtia Bachtiar Yeggi Darnas Yurizka Trialisa Zilvia Wulandari Zilvia Wulandari