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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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STUDI TIMBULAN, KOMPOSISI, DAN POTENSI DAUR ULANG SAMPAH KAWASAN PT SEMEN PADANG Yommi Dewilda; Yeggi Darnas
Jurnal Dampak Vol 10, No 2 (2013)
Publisher : Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/dampak.10.2.111-118.2013

Abstract

Tujuan penelitian ini adalah menentukan timbulan, komposisi dan potensi daur ulangsampah PT Semen Padang. Rata-rata timbulan sampah harian PT Semen Padang dalamsatuan berat adalah 0,076 kg/o/hr sedangkan timbulan dalam satuan volume adalah0,954 l/o/h. Berdasarkan sumber, diperoleh timbulan sampah fasilitas perkantoran1,688 l/o/h, fasilitas sekolah 0,485 l/o/h, fasilitas perumahan 0,675 l/o/h, fasilitas industri0,686 l/o/h, fasilitas kesehatan 0,959 l/o/h, fasilitas social center 3,117 l/o/h, fasilitasolahraga 1,181 l/o/h, fasilitas ibadah 0,107 l/o/h, jalan 1.067 l/m2/h, dan taman 1,231l/m2/h. Komposisi sampah didominasi oleh sampah organik 96,940%, yang terdiri atassampah sisa makanan 29,720%, kertas 29,450%, plastik 21,350%, sampah halaman12,350%, tekstil 3,050%, kayu 0,580%, karet 0,420%, dan sampah anorganik hanya3,060% yang terdiri atas logam non ferrous 1,340%, logam ferrous 1,220%, kaca0,480%, dan sampah lain-lain 0,020%. Komponen sampah yang bepotensi didaur ulangadalah sampah halaman 100%, sampah plastik 96,090%, logam non ferrous 83,590%,sampah makanan 80,280%, sampah kaca 77,810%, sampah kertas 71,220%, sampahlogam ferrous 66,670%, dan sampah kayu 52,130%. Rata-rata potensi daur ulangsampah berdasarkan sumber sebesar 83,800% yang terdiri dari potensi daur ulangsampah kering 36,51% dan potensi daur ulang sampah basah 47,900%.Kata kunci: komposisi sampah, potensi daur ulang sampah, PT Semen Padang, timbulansampah.
Karakterisasi Produk Biomassa Seluler dalam Bioreaktor Membran pada Biodegradasi Zat Warna Azo Remazol Black 5 Puti Sri Komala; Yommi Dewilda; M Zulfan; Zilvia Wulandari
Reaktor Volume 15 No.3 April 2015
Publisher : Dept. of Chemical Engineering, Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (513.465 KB) | DOI: 10.14710/reaktor.15.3.139-147

Abstract

Dalam penelitian ini telah dilakukan karakterisasi produk biomassa seluler dalam bioreaktor membran (BRM) anoksik-oksik pada biodegradasi zat warna Azo Remazol Black 5 (RB 5) pada umur lumpur rendah. BRM terdiri dari tangki anoksik,  kontak, dan stabilisasi serta membran eksternal polysulfone yang diletakkan di antara tangki kontak dan stabilisasi. Umpan yang digunakan adalah campuran zat warna RB 5 dengan konsentrasi 120 mg/L dan ko-substrat limbah tempe dengan COD berkisar antara 2.080-2.400 mg/L. Dengan kombinasi waktu filtrasi dan backwash 1 jam dan 1 menit, BRM dapat beroperasi selama hampir 50 hari dengan fluks rata-rata 9 lmj dan tekanan 0,8 – 2 bar. Komponen seluler masing-masing tangki dilakukan diukur sebagai parameter material polimer ekstraseluler (EPS) dan produk mikrobial terlarut (SMP). Efisiensi penyisihan warna pada berkisar antara 66%- 77%, sedangkan penyisihan COD berkisar pada 44%-50%. Perpindahan biomassa antar tangki yang tidak sempurna diperkirakan telah menurunkan kinerja penyisihan senyawa organik BRM. Kandungan karbohidrat pada SMP maupun EPS  masing-masing tangki nilainya lebih tinggi dibandingkan dengan kadar protein. Karbohidrat yang berasal dari umpan merupakan penyebab utama fouling dibandingkan protein. Konsentrasi EPS yang tinggi terdapat pada tangki stabilisasi akibat transfer oksigen yang buruk dalam struktur biofilm setelah melewati membran. Kata kunci: Bioreaktor Membran (BRM) anoksik-oksik, material polimer ekstraseluler (EPS), produk mikrobial terlarut (SMP), umur lumpur (SRT), zat warna azo Remazol Black 5   Characterization of Cellular Biomass Products in Membrane Bioreactor on Azo Dye Remazol Black 5 Biodegradation Abstract In this study characterization  of  cellular biomass products in anoxic-oxic membrane bioreactor (MBR) on azo dye Remazol Black 5 (RB 5) biodegradation in the low solid retention time was carried out. The MBR consists of anoxic, contacts, and stabilization tank of 4, 2 and 4 hours respectively, and was equipped with an external polysulfone membrane which placed between the contact and the stabilization tanks. Feed was the  mixture of azo dye RB 5 with a concentration of 120 mg/L and co-substrate tempe industrial wastewater with COD ranging between 2.080-2.400 mg / L. With a combination of  filtration and backwash time of 1 hour and 1 minute, the MBR was operated for 50 days with an average flux 9 lmh and pressures of  0.8 to 2 bar. Cellular components of each tank was measured as a parameter performed extracellular polymeric material (EPS) and soluble microbial products (SMP). The color removal efficiency was in range of 66%- 77%, while COD removal efficieny i.e. 44%-50%. Unfavorable biomass transfer between tanks may decreased the organics removal efficiencies of MBR. The carbohydrates content of the SMP and EPS from each tank was higher than that of the the protein content. Carbohydrates coming from the feed, seem the main cause of the fouling compared to proteins. The  high concentration of the extracellular polymeric substance (EPS) was in the stabilization tank due to poor oxygen transfer within the biofilm structure after passing through the membrane.
The Effect of Compost Raw Materials (Market Waste, Yard Waste, and Cow Rumen) to Quality and Quantity of Compost Yommi Dewilda; Rizki Aziz; Hasnureta Hasnureta
Indonesian Journal of Environmental Management and Sustainability Vol. 3 No. 1 (2019): March
Publisher : Research Centre of Inorganic Materials and Complexs

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (437.044 KB) | DOI: 10.26554/ijems.2019.3.4.14-19

Abstract

This study combines market waste (MW), yard waste (YW) and cow rumen (CR) as raw materials to obtain the optimum C/N ratio of compost raw materials. Composter consists of 6 variations, namely variation 1 (70% MW: 30% YW), variation 2 (60% MW: 20% YW: 20% CR), variation 3 (50% MW: 30% YW: 20% CR), variation 4 (40% MW: 40% YW: 20% CR), variation 5 (30% MW: 50% YW: 20% CR) and variation 6 (20% MW: 60% YW: 20% CR). This study aims to analyze the effect of variations in compost raw material composition so that the most optimum variation is obtained for the composting process. The method used was semi-aerobic composting. The results of observations on compost maturity for temperature, pH, texture, color and odor parameters have met SNI 19-7030-2004 standards with composting time of 12-21 days. The results of compost quality analysis including water content, organic C, nitrogen, C/N ratio, phosphorus, and potassium have not all variations fulfilled the SNI 19-7030-2004 standard, namely the value of the C/N ratio in variation 6 which exceeds the standard. Of the total compost as much as 3 liters, the solid compost yields of 0.5-1.25 liters and liquid compost from 0.05 to 1.5 liters were obtained. Based on the results of scoring on maturity, quality, and compost quantity, the best variation was found in variation 2
PENGGUNAAN KULIT NANAS DAN AMPAS TEBU SEBAGAI BAHAN AKTIVATOR MIKROORGANISME LOKAL (MOL) PADA PENGOMPOSAN SAMPAH DAPUR MENGGUNAKAN METODE TAKAKURA Monica Saputri; Rizki Aziz; Yommi Dewilda
Jurnal Sains dan Teknologi: Jurnal Keilmuan dan Aplikasi Teknologi Industri Vol 21, No 2 (2021): JURNAL SAINS DAN TEKNOLOGI
Publisher : Sekolah Tinggi Teknologi Industri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36275/stsp.v21i2.441

Abstract

Pengomposan merupakan suatu bentuk upaya mengurangi timbulan sampah organik berupa sampah dapur di kawasan pemukiman. Penelitian ini dilakukan untuk menganalisis kematangan, kualitas dan kuantitas pengomposan sampah dapur dengan metode Takakura dan membandingkan hasil kompos sampah dapur terhadap semua variasi aktivator. Proses pengomposan dilakukan dalam rangkap dua untuk setiap variasi. Pemilihan variasi pengomposan dilakukan dengan metode skoring. Pengomposan dilakukan dalam 5 variasi yang terdiri dari variasi A (tanpa aktivator), variasi B (penggerak EM4), variasi C (MOL aktivator dari kulit nanas), variasi D (MOL aktivator dari ampas tebu), dan variasi E (MOL aktivator dari ampas tebu). kombinasi kulit nanas dan ampas tebu.Analisis kompos dilakukan terhadap kematangan, kualitas (unsur fisik dan makro), dan kuantitas kompos. Hasil analisis yang diperoleh dalam penelitian ini sudah  memenuhi standar  SNI 2004. Penambahan aktivator mempengaruhi waktu pengomposan, kualitas, dan kuantitas kompos Pemilihan variasi pengomposan dengan skoring menghasilkan variasi E merupakan variasi terbaik dalam hal kematangan, kualitas (unsur fisik dan makro), dan kuantitas kompos dibandingkan variasi A, B, C, dan D.
KAJIAN AWAL PENGOLAHAN SAMPAH KAWASAN WISATA PANTAI CAROCOK KOTA PAINAN Rizki Aziz; Yommi Dewilda; Busrita Exgia Putri
Jurnal Sains dan Teknologi: Jurnal Keilmuan dan Aplikasi Teknologi Industri Vol 20, No 1 (2020): JURNAL SAINS DAN TEKNOLOGI
Publisher : Sekolah Tinggi Teknologi Industri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (274.301 KB) | DOI: 10.36275/stsp.v20i1.244

Abstract

Kawasan wisata adalah salah satu sumber sampah kota yang terus meningkat timbulan sampahnya seiring dengan meningkatnya kunjungan wisatawan yang dipacu oleh peningkatan pembangunan wisata, termasuk di Pantai Carocok Kota Painan. Penelitian ini bertujuan untuk menganalisis timbulan sampah, komposisi, dan potensi daur ulang sampah wisata Pantai Carocok, dan memberikan rekomendasi pengolahan sampah sebagai bagian dari sistem pengelolaan sampah Pantai Carocok kedepannya. Timbulan sampah Pantai Carocok sebesar 6.149 L/hari atau 578,01 kg/hari dengan komposisi sampah dominan adalah sampah makanan 28,32%, plastik 26,30%, kertas 17,46%, dan sampah halaman 12,55%. Potensi daur ulang sampah yang terbesar yaitu sampah logam 93,55%, sampah plastik 86,25% dan kaca 54,89%. Pengolahan sampah yang dapat dilakukan berupa pengomposan untuk sampah makanan dan halaman, dan didaur ulang untuk sampah plastik, kertas, kaca, dan logam, sedangkan sisanya dapat ditransportasikan ke Tempat Pemrosesan Akhir sampah. Pengolahan sampah dapat dilakukan di Tempat Pengolahan Sampah berbasis reduce, reuse, recycle (TPS 3R).
Pengembangan Sistem Pengelolaan Sampah Kawasan Wisata Pantai Kota Pariaman dengan Pendekatan Reduce-Reuse-Recycle Rizki Aziz; Yommi Dewilda; Hafizhul Khair; Mikel Faklin
Jurnal Serambi Engineering Vol 5, No 3 (2020)
Publisher : Fakultas Teknik

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32672/jse.v5i3.2141

Abstract

The development of a reduce-reuse-recycle (3R) based solid waste management system was studied in the Pariaman City Beach Tourism Area which consists of Gandoriah Beach, Cermin Beach, Kata Beach, Angso Duo Island and Tangah Island. Solid waste managed is 2,646.813 m3/day. Development based on Permen PU No. 3 of 2013, with a scale of area management that serves 100% of the waste generated. The planned waste management system includes: sorting and storage, collection, processing at the Solid Waste Processing Site by Reduce Reuse Recycle approach (TPS3R) and transport to the landfill site. The needs of infrastructure and facility for solid waste management includes 100 liter of communal storage with three categories (compostable waste, recyclable waste and others) as many as 21 sets and 20 sets of communal storages as much as 4 sets. Waste collection uses indirect communal patterns with a 1.5 m3 motorized pedicab and one rattan basket 0.5 m3, processing at TPS 3R in by composting, grinding of coconut shell, making plastic handicrafts and selling recyclable plastic, paper and glass waste to third parties, transferring using a 6 m3 container followed by transportation from TPS 3R to Tungkal Selatan Landfill using arm roll truck.
Kajian Potensi Daur Ulang Sampah Makanan Restoran di Kota Padang Yommi Dewilda; Rizki Aziz; Mhd. Fauzi
Jurnal Serambi Engineering Vol 4, No 2 (2019)
Publisher : Fakultas Teknik

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32672/jse.v4i2.1325

Abstract

The purpose of this research is to study the recycling potency of food waste from restaurants in Padang City by  measuring the food waste generation and its composition. Sampling and analysis were carried out based on SNI 19-3964-1994. It was performed for eight consecutive days at fifteen different sampling locations which include restaurants, cafes, fast food, and food courts. The result of this research showed that the average generation unit of restaurant food waste in the city of Padang was 0.105 kg/cap/day in weight units or 0.955 liters/cap/day in unit volume. The total generation of restaurant food waste was 132 liters/day which consists of organic waste (food scraps, leaves, fruit skin, vegetables, eggshells, bones), plastic (plastic bottles, packaging, bags, straws, and spoons), paper  (tissue, packaging paper, paper containers, cartons), and others (styrofoam, broken glass, smoked cigarette remains, cans, glass bottles). Organic waste has the largest percentage by the composition of 70.69%, and that of plastic was at 11.35%. The study further showed that the recycling potency of restaurant food waste in Padang City was made up of 7.65% paper, 51.32% plastic, 59.86% glass, 100% nonferrous metal and 91.71% organic waste. Conclusively, recycling and composting method were recommended to process the restaurant food waste.
Kajian Pengelolaan Sampah Makanan Hotel di Kota Padang Berdasarkan Food Recovery Hierachy Yommi Dewilda; Aditya Riansyah; Mhd. Fauzi
Jurnal Serambi Engineering Vol 7, No 4 (2022): Oktober 2022
Publisher : Fakultas Teknik

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32672/jse.v7i4.4893

Abstract

Penelitian ini bertujuan mengkaji pengolahan sampah makanan dari hotel di Kota Padang berdasarkan Food Recovery Hierarchy. Penentuan jumlah sampel dan tata cara sampling timbulan dilakukan berdasarkan SNI 19-3964-1994 dengan lokasi pengambilan sampel pada 12 titik meliputi hotel berbintang, hotel non bintang dan wisma dengan tingkat kepercayaan 99,82%. Hasil penelitian menunjukkan satuan timbulan rata-rata sampah makanan dari hotel di Kota Padang adalah sebesar 1,812 kg/tt/hari dalam satuan berat atau sebesar 4,181 liter/tt/hari dalam satuan volume. Timbulan sampah makanan dari hotel di Kota Padang sebesar 249 L/ hotel. Komposisi sampah organik sebesar 75,30%, sampah plastik 11,35% , sampah kertas 10,72% dan sampah lain-lain 4,86%. Sampah makanan hotel di Kota Padang memiliki potensi daur ulang pada berbagai jenis komponen sampah seperti sampah kertas 47,52%, plastik 46,01%, kaca 77,88%, logam non ferro 100% dan sampah organik 94,35%. Rata-rata berat jenis sampah sebesar 0,450 kg/l, kadar air 38,89%, kadar volatile 58,03%, kadar abu 2,37%, fixed carbon 0,70%, rasio C/N 24,20 dan fraksi biodegradabilitas 59,82%. Pengolahan sampah makanan yang disarankan untuk hotel di Kota Padang berdasarkan food recovery hierarchy berupa reduksi di sumber sebesar 24,75%, mendonasikan makanan 18,82%, memberi makan hewan 18,82%, penggunaan industri 25,75%, dan pengomposan 10,77%. Pengolahan ini dilakukan dengan skala sumber. Sampah yang tidak bisa diolah akan dibuang ke TPA sebesar 2,14%. Berdasarkan karakteristik fisika dan kimia sampah makanan yang dihasilkan hotel memiliki karakteristik yang cocok untuk proses pengomposan ataupun biodegester. Pengolahan ini bisa dilakukan dengan skala sumber oleh masing-masing hotel. Sehingg selain mendapatkan keuntungan, hal ini dapat mengurangi sampah yang masuk ke TPA.
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
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