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All Journal Sewagati International Journal of Renewable Energy Development
Tetrisyanda, Rizky
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Pendampingan Kader UMKM Dukuh Menanggal Surabaya Raih Sertifikasi Halal Zuchrillah, Daril Ridho; Altway, Saidah; Hamzah, Afan; Karisma, Achmad Dwitama; Atletiko, Faizal Johan; Trisanti, Prida Novarita; Tjahyanto, Aris; Tetrisyanda, Rizky; Nugroho, Muhammad Aldi; Triastuti, Warlinda Eka
Sewagati Vol 8 No 2 (2024)
Publisher : Pusat Publikasi ITS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j26139960.v8i2.993

Abstract

Masalah belum dimilikinya sertifikat halal dari produk yang dijual oleh UMKM saat ini menjadi hambatan untuk proses pemasaran produk yang lebih luas. Salah satunya UMKM kader PKK kelurahan Dukuh Menanggal yang berada di Kecamatan Gayungan, Kota Surabaya. Kurangnya informasi akan proses sertifikasi halal sangatlah berdampak pada proses percepatan sertifikasi halal. Oleh sebab itu, guna mempercepat sertifikasi halal di UMKM kader PKK Kelurahan Dukuh Menanggal, tim pengabdian masyarakat beserta mahasiswa KKN dari Institut Teknologi Sepuluh Nopember melakukan pendampingan mitra UMKM untuk mendapatkan sertifikasi halal atas produk yang mereka jual. Pada pengabdian ini beberapa kegiatan dilakukan, seperti Forum Group Discussion, sosialisasi, pelatihan kader penggerak halal, pendampingan UMKM untuk sertifikasi halal, dan pemetaan produk UMKM yang telah bersertifikat halal. Hasil dari pengabdian masyarakat ini yaitu tim abdimas beserta mahasiswa KKN telah mendampingi sebanyak 30 UMKM yang mengajukan sertifikasi halal dengan skema self declare. Kegiatan pendampingan ini diharapkan untuk dilanjutkan kepada para penjual makanan dan minuman di kawasan Sentra Wisata Kuliner (SWK) Surabaya.
Development of an isothermal CO2 absorption process using DMC and PEG400 for carbon capture and storage technology Qouli, Ferdiansyah Iqbil; Sahiba, Iqlima Huda; Ningrum, Yuli Rahmawati Dwi Rahayu; Tetrisyanda, Rizky; Wibawa, Gede; Wahyudiono, Wahyudiono; Anugraha, Rendra Panca
International Journal of Renewable Energy Development Vol 15, No 3 (2026): May 2026
Publisher : Center of Biomass & Renewable Energy (CBIORE)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.61435/ijred.2026.62097

Abstract

This study aims to develop and evaluate a green binary solvent system based on dimethyl carbonate (DMC) and polyethylene glycol 400 (PEG400) for physical CO2 absorption. Efficient and environmentally benign solvents are essential to support large-scale decarbonization efforts. The DMC–PEG400 system was formulated at molar ratios of 1:2, 1:3, and 1:4 to assess its absorption performance. Isothermal solubility experiments were performed at 303.15–323.15 K and 3–7 bar, complemented by Fourier Transform Infrared (FTIR) spectroscopy to elucidate the absorption mechanism. The FTIR spectra showed the emergence of characteristic CO2 vibrational bands without alterations to the solvent’s fingerprint region, confirming that CO₂ uptake proceeds through physical dissolution rather than chemical interaction. The DMC–PEG400 mixtures demonstrated clear temperature and pressure dependencies typical of physical solvents, with solubility decreasing at elevated temperatures and increasing proportionally with pressure. Among the tested formulations, the 1:3 molar ratio exhibited the highest absorption capacity, achieving 0.0606 mole CO₂/mole solution at 303.15 K and 7 bar. This performance arises from an optimal balance between interaction sites provided by PEG400 and the moderate viscosity needed to facilitate efficient CO2 diffusion. In contrast, the 1:4 mixture displayed reduced capacity due to excessive viscosity and limited free volume. Overall, the results highlight the promising potential of DMC–PEG400 mixtures, particularly at the 1:3 ratio, as tunable and sustainable physical solvents for CO₂ capture. Their favorable solubility behavior, stability, and benign chemical nature position them as viable candidates for next-generation carbon capture and storage (CCS) technologies.
Co-Authors Achmad Dwitama Karisma Afan Hamzah, Afan Ali Altway Anugraha, Rendra Panca Aris Tjahyanto Atletiko, Faizal Johan Gede Wibawa Ningrum, Yuli Rahmawati Dwi Rahayu Nugroho, Muhammad Aldi Prida Novarita Trisanti, Prida Novarita Qouli, Ferdiansyah Iqbil Sahiba, Iqlima Huda Wahyudiono Wahyudiono Warlinda Eka Triastuti Zuchrillah, Daril Ridho