Zobrazeno 1 - 10
of 158
pro vyhledávání: '"HIMAWAN TRI BAYU MURTI PETRUS"'
Autor:
Kevin Cleary Wanta, Alexander William Prijadi, Himawan Tri Bayu Murti Petrus, Arifudin Idrus, Iga Trisnawati, Agus Saptoro, Ratna Frida Susanti
Publikováno v:
Journal of Applied Science and Engineering, Vol 28, Iss 7, Pp 1571-1580 (2024)
Ruwai galena ore contains a high amount of lead (Pb) and a higher silver (Ag) content than similar ores. It indicates that Ruwai galena ore has excellent potential to be utilized as a prospective source of Ag . However, recovery of Ag from the galen
Externí odkaz:
https://doaj.org/article/4dad7399a70840a0a17f9afe91af882c
Publikováno v:
International Journal of Technology, Vol 15, Iss 5, Pp 1308-1320 (2024)
This study aims to develop a liquid-liquid equilibrium model to predict the Ce distribution in the extraction system based on experimental laboratory data. Extraction feed solution (Ce hydroxide in nitric acid media) and solvent (Tri Butyl Phospha
Externí odkaz:
https://doaj.org/article/a501273d0d08470d9125297e62151f3e
Autor:
Fika Rofiek Mufakhir, Chusnul Khotimah, Soesaptri Oediyani, Widi Astuti, Slamet Sumardi, Hendra Prasetia, La Ode Arham, Hafid Zul Hakim, Himawan Tri Bayu Murti Petrus, Venny Poernomo
Publikováno v:
Indonesian Journal of Chemistry, Vol 24, Iss 4, Pp 1156-1169 (2024)
This study uses electrocoagulation to investigate reducing heavy metal content in wastewater from discharging spent batteries. ICP-OES analysis shows that heavy metals exceed the environmental water standard. The electrocoagulation procedure was cond
Externí odkaz:
https://doaj.org/article/e25026e121fc4dc6afaa17740f92a998
Autor:
Widi Astuti, Dira Avista, Pramesti Prihutami, Kevin Cleary Wanta, Agus Prakosa, Ferian Anggara, Himawan Tri Bayu Murti Petrus
Publikováno v:
International Journal of Technology, Vol 15, Iss 4, Pp 824-833 (2024)
Halmahera Island in Indonesia holds great potential for nickel laterite due to its geological setting. As the product of chemical weathering, nickel laterite can be divided into saprolite and limonite. Despite containing invaluable elements like n
Externí odkaz:
https://doaj.org/article/78f8aa976ce34bcf8343fb3578815eb7
Autor:
Indra Perdana, Muhammad Irfan Rahman, Doni Riski Aprilianto, Himawan Tri Bayu Murti Petrus, Divita Hayyu Kinanti
Publikováno v:
Indonesian Journal of Chemistry, Vol 24, Iss 3, Pp 876-892 (2024)
The recycling of spent lithium NMC-type batteries, widely used in electric vehicles, presents a challenge due to manganese content, which complicates metal separation and purification. This study explored a selective leaching process using ammonia to
Externí odkaz:
https://doaj.org/article/7b6019577e084c13823ced94db8774b1
Autor:
Yayat Iman Supriyatna, Agus Prasetya, Widi Astuti, Slamet Sumardi, Priskila Natalia, Dicky Marsa Adythia, Himawan Tri Bayu Murti Petrus
Publikováno v:
Indonesian Journal of Chemistry, Vol 24, Iss 3, Pp 627-637 (2024)
Minerals containing TiO2 are common in Indonesia, such as ilmenite in iron sand deposits scattered along the country's coasts. Ilmenite is an important source of titanium. One method for making TiO2 from ilmenite is by solubilizing both the Fe and Ti
Externí odkaz:
https://doaj.org/article/934f7891099f41e382d5ba3cc6e0a41d
Publikováno v:
Bulletin of Chemical Reaction Engineering & Catalysis, Vol 19, Iss 1, Pp 99-107 (2024)
CO2 conversion into fuels and high value-added chemical feedstocks, such as methane, has gained novel interest as a crucial process for further manufacturing multi-carbon products. Methane, CH4, becomes a promising alternative for environmental and e
Externí odkaz:
https://doaj.org/article/ef838c46b8c545ffb4deecdc1cc0e285
Autor:
Ferian Anggara, Dea Anisa Ayu Besari, Daniel Timotius, Donatus Hendra Amijaya, Wali Al Hasunah, Amelia Andriani, Himawan Tri Bayu Murti Petrus, Robertus Dhimas Dhewangga Putra, Aldian Fahrialam
Publikováno v:
Results in Engineering, Vol 23, Iss , Pp 102590- (2024)
Coal-fired power plants are integral to global electricity production due to their cost-effectiveness and widespread availability of coal. This research investigates the operational dynamics of these plants, emphasizing the production of fly ash and
Externí odkaz:
https://doaj.org/article/38d0f8e993624aeb95418afb47a9f852
Autor:
Dwi Umi Siswanti, Dinda Ayuningtyas, Shafira Nurulita Nugraheni, Tsurayya Nurhanifah, Himawan Tri Bayu Murti Petrus, Eko Agus Suyono, Budi Setiadi Daryono
Publikováno v:
Watershed Ecology and the Environment, Vol 6, Iss , Pp 227-233 (2024)
Mercury is one of the heavy metals that became a global threat in this industrialization era. Artisanal and Small-Scale Gold Mining activities are the leading cause of this mercury pollution. Sustainable and environmentally friendly methods can be a
Externí odkaz:
https://doaj.org/article/8fbb12977cbe49f5bb9e10e2f31d4865
Autor:
Aswati Mindaryani, Vincent Sutresno Hadi Sujoto, Sandrina Christine Michelin Silalahi, Himawan Tri Bayu Murti Petrus, Edia Rahayuningsih
Publikováno v:
Indonesian Journal of Chemistry, Vol 23, Iss 5, Pp 1445-1455 (2023)
The textile sector leaves 80% of effluent untreated. Carcinogenic, mutagenic, and poisonous synthetic colors in textile waste streams harm the ecosystem. Biodegradable natural dyes are safer than synthetic dyes. Merbau sawdust is abundant in Papua bu
Externí odkaz:
https://doaj.org/article/8afca0115afc42af9d3e216abf67dc5b