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All Journal Envirotek : Jurnal Ilmiah Teknik Lingkungan Serambi Engineering
Yayok Suryo Purnomo
Program Studi Teknik Lingkungan, Universitas Pembangunan Nasional “Veteran” Jawa Timur
Chemical Engineering, Chemistry & Bioengineering Earth & Planetary Sciences Energy Engineering Environmental Science Industrial & Manufacturing Engineering

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Potensi Limbah Kulit Udang dan Cangkang Kepiting Sebagai Chitosan Polymer Medium (CPM) Hafidya Norista Pramesti; Yayok Suryo Purnomo; Aussie Amalia
Envirotek : Jurnal Ilmiah Teknik Lingkungan Vol. 14 No. 2 (2022): Envirotek: Jurnal Ilmiah Teknik Lingkungan
Publisher : Universitas Pembangunan Nasional Veteran Jawa Timur

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33005/envirotek.v14i2.27

Abstract

Limbah cangkang kepiting dan kulit udang memiliki kandungan kitin yang dinilai berpotensi menjadi Chitosan Polymer Medium (CPM) sebagai bahan pelapis masker untuk menyisihkan zat toksik pada asap rokok. Bahaya yang sudah diidentifikasi memerlukan beberapa langkah pengendalian ke titik yang aman. Cara yang dapat digunakan untuk mengendalikan bahaya asap rokok adalah dengan menggunakan masker. Oleh karena itu, penelitian ini bertujuan untuk mengetahui karakteristik CPM cangkang kepiting dan kulit udang yang berguna sebagai CPM. Analisis yang digunakan adalah Scanning Electron Microscope (SEM) untuk mengetahui karakteristik, dan Fourier Transform Infrared (FTIR) untuk mengetahui struktur dan derajat deasetilasi. Hasil terbaik yang didapatkan dari penelitian ini adalah Chitosan Polymer Medium (CPM) kulit udang dengan diameter pori-pori ± 0,31 μm – 0,33 μm dengan kerapatan tinggi dan derajat deasetilasi sebesar 82,10%.
Pengaruh Variasi Waktu dan Tegangan Listrik Terhadap Penurunan Kandungan Beban Pencemar Air Sumur di Desa Lakardowo Kabupaten Mojokerto dengan Metode Kombinasi Elektrolisis Klorinasi Muhammad Rizki Akbar Maulana; Yayok Suryo Purnomo
Envirotek : Jurnal Ilmiah Teknik Lingkungan Vol. 15 No. 2 (2023): Envirotek: Jurnal Ilmiah Teknik Lingkungan
Publisher : Universitas Pembangunan Nasional Veteran Jawa Timur

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33005/envirotek.v15i2.147

Abstract

Elektrolisis merupakan reaksi dengan melibatkan perubahan kimia di dalam elektrolit karena adanya arus listrik (DC). Desinfeksi dengan klorinasi dapat didefinisikan sebagai pembubuhan terhadap jenis mikroba salah satunya adalah mikroorganisme. Penelitian ini bertujuan untuk mengetahui pengaruh variasi waktu dan tegangan listrik dalam menurunkan beban pencemar air sumur di Desa Lakardowo Kabupaten Mojokerto seperti besi, mangan, kromium dan mikroorganisme. Proses elektrolisis-klorinasi ini menggunakan variasi lama waktu yaitu 5, 25, 50, 75, 100 dan 125 menit. Sedangkan, kuat tegangan listrik (volt) yang digunakan adalah 3, 6, 12, 18, dan 24 volt. Proses elektrolisis-klorinasi ini menggunakan plat berupa aluminium sebagai elektroda untuk menghantarkan listrik. Hasil penelitian menunjukkan bahwa semakin lama waktu dan tinggi tegangan listrik yang digunakan dalam penelitian ini, maka nilai yang didapat semakin menurun dalam arti semakin kecil beban pencemar yang terkandung. Hal tersebut dilihat untuk parameter besi  dan mangan diperoleh pada  24 volt dengan waktu 125 menit, kromium diperoleh pada 24 volt dengan waktu 75 menit  dan mikroorganisme pada tegangan 24 volt  dengan waktu 5 menit telah berhasil menurunkan nilai parameter yang terkandung.
Peran Larva Black Soldier Fly dalam Pengurangan Limbah Kotoran Sapi dan Pilihan Pakan Unggas Ayam Ilham Lacta Praditya; Yayok Suryo Purnomo
Jurnal Serambi Engineering Vol. 9 No. 2 (2024): April 2024
Publisher : Faculty of Engineering, Universitas Serambi Mekkah

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Abstract

Livestock waste is a major concern due to its negative impact on the environment and society. Waste processing methods such as organic fertiliser production, biogas and the use of Black Soldier Fly (BSF) have been proposed as solutions to reduce the negative impacts of livestock waste. This research aims to investigate the potential of BSF larvae to manage cow dung waste and use it as an alternative feed source. The research included variations in feeding with a combination of local microorganisms (MOL) and Effective Microorganisms-4 (EM4) and analysis of the efficiency of decomposition of cow dung waste by BSF larvae. Initial observations show that cow dung waste has an alkaline pH and optimal temperature for the growth of BSF larvae. The research results showed that the combination of feeding cow dung waste with MOL EM4 Animal Husbandry at a ratio of 5:1 provided the highest percentage of waste reduction (59%) and optimal growth of BSF larvae. Variations in bioactivators and MOL feeding ratios also had a significant effect on waste reduction efficiency and BSF larval growth. BSF larvae fed with the EM4 Livestock mixture have high protein and fat content, making it a good alternative feed source for livestock. These results confirm the potential of BSF larvae to reduce livestock waste and provide an alternative feed source that is useful for agriculture and livestock.
Efektivitas Pengomposan Sampah Organik Menggunakan Mikroorganisme Lokal Sabut Kelapa dan Nasi Bekas Syarmilahtus Surotin; Yayok Suryo Purnomo
Jurnal Serambi Engineering Vol. 9 No. 2 (2024): April 2024
Publisher : Faculty of Engineering, Universitas Serambi Mekkah

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Abstract

Currently, the most waste comes from households at 38.4%. Efforts to deal with these problems are made by making compost with the addition of bioactivators to speed up the composting process. The purpose of this study was to compare the results of compost with the addition of variations of coconut husk MOL, used rice MOL, combinations MOL and get the best results in accordance with SNI 19-7030-2004. This study used raw materials from household organic waste and MOL variations, namely coconut husk, used rice, and a mixture of both. In addition, it also uses variations in the dose of MOL, namely 5ml and 10ml. This study showed that the addition of MOL variations was more effective than control variations. The results showed that MOL coconut husk and used rice have a high bacterial content so that they can be used as bioactivators, compost results based on physical parameters have met SNI, namely having a blackish color, earth-like texture, and smelling of soil. Compost with the addition of a bioactivator (MOL) mixture of coconut husk and used rice dose of 10ml has a C/N ratio value of 15.14 and a high reduction rate of 63.80%. This variation is more effective in degrading organic waste compared to other variations. The use of natural bioactivator materials is environmentally friendly, economical and also more effective in degrading household organic waste.
Efektivitas Eco Enzyme Sebagai Biokatalisator Proses Anaerob Untuk Mendegradasi Parameter TSS, Surfaktan, dan Fosfat Honest Lazuardi; Yayok Suryo Purnomo
Jurnal Serambi Engineering Vol. 9 No. 3 (2024): Juli 2024
Publisher : Faculty of Engineering, Universitas Serambi Mekkah

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Abstract

The pollution of rivers by domestic waste has become a serious problem affecting water quality. To address this problem, the use of ecoenzymes has been proposed as a solution for domestic waste treatment. In this study, different concentrations of ecoenzymes (10%, 20%, 25%) in the anaerobic process and retention time (2, 4, 6 days) were used to measure the degradation of organic parameters such as TSS (Total Suspended Solids), surfactants and phosphates. The results of the study indicate a significant reduction in TSS, surfactants and phosphates. The optimum concentration for TSS reduction was found to be 10%, while for surfactants and phosphates it was 25%. The optimum retention time for all parameters was found to be 6 days. These results provide an effective and economical solution for reducing river water pollution caused by domestic waste. It is hoped that the results of this study will provide another option for the treatment of domestic wastewater and the maintenance of river water quality.
Co-Authors Aussie Amalia Hafidya Norista Pramesti Honest Lazuardi Ilham Lacta Praditya Muhammad Rizki Akbar Maulana Syarmilahtus Surotin