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All Journal Jukung (Jurnal Teknik Lingkungan) International Journal of Renewable Energy Development Jurnal Sains Materi Indonesia
Hafiizh Prasetia, Hafiizh
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Agriculture, Biological Sciences & Forestry Chemistry Civil Engineering, Building, Construction & Architecture Control & Systems Engineering Earth & Planetary Sciences Electrical & Electronics Engineering Energy Engineering Environmental Science Industrial & Manufacturing Engineering Materials Science & Nanotechnology

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VARIASI KEMAMPUAN BEBERAPA JENIS POHON DALAM MENYERAP CO2 PADA TAMAN KOTA BANJARBARU Prasetia, Hafiizh; Riduan, Rony; Annisa, Nova
Jukung (Jurnal Teknik Lingkungan) Vol 4, No 2 (2018): SEPTEMBER 2018
Publisher : Program Studi Teknik Lingkungan Fakultas Teknik Universitas Lambung Mangkurat

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Keberadaan ruang terbuka hijau (RTH) di Kelurahan Komet sangat diperlukan keberadaannya. Jumlah, jenis dan distribusi vegetasi yang sudah ada perlu diketahui untuk membuat perencanaan RTH taman kota dan taman lingkungan yang dibutuhkan di Kota Banjarbaru. Oleh sebab itu, selain untuk menginventarisir RTH taman kota dan taman lingkungan yang ada, juga perlu dilakukan analisis variasi kemampuan serapan CO2 atmosfir beberapa jenis pohon penyusun ruang terbuka hijau Kota Banjarbaru, khususnya Kelurahan Komet. Tata hijau yang digunakan dalam lansekap kawasan taman menggunakan pohon yang bertajuk lebar dan didominansi pohon seperti akasia (Acacia mangium), jambu air (Eugenia aquea), mangga (Mangifera indica), sawo (Manilkara zapota), rambutan (Nephelium lappaceum), jambu biji (Psidium guajava), angsana (Pterocarpus indicus), mahoni berdaun lebar (Swietenia macrophylla), dan ketapang (Terminalia catappa). Penyerapan tertinggi tercatat pada pohon angsana (Pterocarpus indicus) yaitu sebesar 720 kg.tahun-1, sedangkan yang terendah pada pohon jambu biji (Psidium guajava), dan mahoni berdaun lebar (Swietenia macrophylla) yaitu sebesar 61 kg.tahun-1. Kata Kunci: Banjarbaru, serapan CO2, taman. The existence of green open space in Comet Village is indispensable. The number, type and distribution of existing vegetation should be known to make urban park planning and environmental parks needed in Banjarbaru City. Therefore, in addition to the inventory green open space park city and environmental parks that exist, it is also necessary to analyze the variation of atmospheric CO2 absorption capacity of several types of trees making up green open space Banjarbaru City, especially Comet Village. The green streets used in the landscape of the park area use wide-brim and tree-dominated such as Acacia mangium, Eugenia aquea, Mangifera indica, Manilkara zapota, Nephelium lappaceum, Psidium guajava, Pterocarpus indicus, Swietenia macrophylla and Terminalia catappa. The highest absorption was recorded in Pterocarpus indicus tree which was 720 kg.year-1, while the lowest in Psidium guajava and Swietenia macrophylla tree was 61 kg.year-1.Keyword : Banjarbaru, CO2 absorption, park.
Bio-briquettes from tea fluff biochar: a response surface methodology study on particle size, resin gum-adhesive, and used cooking oil immersion time Suryajaya, Suryajaya; Agustian, Egi; Haryanti, Ninis Hadi; Prasetia, Hafiizh; Rahmah, Siti; Kurniawan, Hendris Hendarsyah; Wianto, Totok; Ramadhoni, Benni F; Manik, Tetti Novalina; Annisa, Nova; Rezamela, Erdiansyah; Sulaswatty, Anny
International Journal of Renewable Energy Development Vol 14, No 5 (2025): September 2025
Publisher : Center of Biomass & Renewable Energy (CBIORE)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.61435/ijred.2025.60877

Abstract

Fluff tea is the residual solid waste generated in the green tea industry and holds the potential for development as a solid fuel in bio-briquettes. This study transformed fluff tea into bio-briquettes utilizing biochar produced through slow pyrolysis. The study aimed to optimize bio-briquettes production from fluff tea using the Response Surface Methodology (RSM) approach through proximate analysis. The cylindrical bio-briquettes were produced using biochar particle sizes of 850, 500, and 150 μm, resin gum adhesive concentrations of 10%, 15%, and 20%, and immersion times in cooking oil of 0, 3, and 6 minutes. The results showed that the overall response by the p-value was <0.05, and the lack of fit was insignificant (p-value >0.05). The findings indicated that the calorific value of tea fluff rose from 4,482.56 cal/g to 6,374.98 cal/g after conversion to biochar. The optimum conditions for producing tea fluff bio-briquettes were a particle size of 850 μm, adhesive concentration of 11%, and immersion time of 5 minutes. The bio-briquettes exhibited a moisture content of 3.53%, ash content of 5.65%, volatile matter of 14.75%, fixed carbon of 76.14%, calorific value of 7,796.37 cal/g, combustion rate of 0.11 g/min, density of 1.22 g/cm3, and compressive strength of 35.57 N/cm2. Most tea fluff briquettes' properties had met Indonesia's briquettes standard. The production of bio-briquettes from tea fluff waste is a viable alternative fuel for both industrial and domestic applications.
Adsorption Study of Methylene Blue and Methyl Red on Activated Carbon from Silver Composite Using the Extract of Spent Coffee Grounds Haidar Sitie Rafidah; Prasetia, Hafiizh; Saefumillah, Asep
Jurnal Sains Materi Indonesia Vol. 25 No. 2 (2024): Jurnal Sains dan Materi Indonesia
Publisher : BRIN Publishing (Penerbit BRIN)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55981/jsmi.2024.924

Abstract

The activated carbon was prepared from silver composite via an extract of spent coffee grounds with phosphoric acid activation. The activated carbon was used to study the removal of methylene blue and methyl red from an aqueous medium. Fourier-transform infrared spectroscopy (FTIR) spectra confirmed the functional group of O–P–O that can interact with dye molecules and the reduction process of Ag+ to Ag0. Field Emission Scanning Electron Microscopy (FESEM) morphology suggests a porous and irregular polygonal shape. The efficiency removal and adsorption capacity of methylene blue reached 98.73% and 9.87 mg/g at pH 9, while methyl red reached 98.55% and 9.86 mg/g at pH 4. The kinetics adsorption study followed the pseudo-first order. The isotherm adsorption study followed the Langmuir model. Based on the kinetics and isotherm study, the adsorption study of methylene blue and methyl red is chemical sorption.
Co-Authors Anny Sulaswatty, Anny Asep Saefumillah Egi Agustian Erdiansyah Rezamela, Erdiansyah Haidar Sitie Rafidah Hendris Hendarsyah Kurniawan, Hendris Hendarsyah Manik, Tetti Novalina Ninis Hadi Haryanti, Ninis Hadi Nova Annisa, Nova Ramadhoni, Benni F Rony Riduan Sembiring, Rinawati Suryajaya Suryajaya, Suryajaya Totok Wianto