Zobrazeno 1 - 10
of 109
pro vyhledávání: '"Rahmiana Zein"'
Publikováno v:
South African Journal of Chemical Engineering, Vol 48, Iss , Pp 204-213 (2024)
In this study, activated rice straw modified with duck egg white (RSA-DEW) was tested extensively to increase the adsorption capacity of Cr(VI) ions. The parametric study was carried out in a batch system, and the results showed that the maximum adso
Externí odkaz:
https://doaj.org/article/5a55107e87e94a4b8aa35ea0a4a3c2db
Publikováno v:
Case Studies in Chemical and Environmental Engineering, Vol 9, Iss , Pp 100678- (2024)
Palm kernel shell ash (PKSA) and used palm cooking oil (UPCO) are both waste materials that still have economic value with proper utilization. Thus, the aim of this research was to convert UPCO into biodiesel using a green and recyclable catalyst mad
Externí odkaz:
https://doaj.org/article/85193635e91d41b7837d85c0ec24f751
Publikováno v:
South African Journal of Chemical Engineering, Vol 47, Iss , Pp 15-27 (2024)
Corn husk waste (CHW) was evaluated as an alternative simple treatment strategy to remove methylene blue dyes (MB). Various experimental factors, such as pH, concentration, contact time, and temperature, were studied during the adsorption process. Op
Externí odkaz:
https://doaj.org/article/148d1642891347228f15fa5f768ffb43
Autor:
Imelda Imelda, Refinel Refinel, Refilda Refilda, Yefrida Yefrida, Hermansyah Aziz, Yulizar Yusuf, Suryati Suryati, Zulkarnain Chaidir, Sumaryati Syukur, Rahmiana Zein, Novesar Jamarun, Safni Safni, Zilfa Zilfa, Yetria Rilda, Norman Ferdinal, Tommi Hermansyah, Fivi Mona Bareno
Publikováno v:
Warta Pengabdian Andalas, Vol 30, Iss 3, Pp 562-568 (2023)
Chemistry is one of the subjects taught in State Senior High Schools (SMAN), especially in Natural Sciences (IPA). The problem with chemistry subjects is that it is difficult to practice in the laboratory because laboratory facilities such as space,
Externí odkaz:
https://doaj.org/article/3625028d30de4ffcad0e404e3006763d
Publikováno v:
Applied Environmental Research, Vol 45, Iss 3 (2023)
Textile industries discharge various waste including dye waste to the environment. Dye waste such as methylene blue taints both aquatic and land ecosystem. Thus, the recent study employs banana stem (Musa balbisiana Colla), as an economical and envir
Externí odkaz:
https://doaj.org/article/9de5341949374732a6ef6c90d8b4cf99
Autor:
Refilda Refilda, Rahmiana Zein, Hermansyah Aziz, Yefrida Yefrida, Zilfa Zilfa, Syukri Syukri, Matlal Fajri Alif, Yulizar Yusuf, Admi Admi, Raihan Hanif Aulia, Nurul Afifah
Publikováno v:
Warta Pengabdian Andalas, Vol 29, Iss 4, Pp 436-442 (2022)
The Community Service Team of the Chemistry Department has worked closely with the Taman Pendidikan Qur'an (TPQ) and Rumah Tahzhul Qur'an (RTQ) Raudhatul Adzkia Jorong Dalam Koto Nagari Koto Tangah in solving problems faced by partners. The pond catf
Externí odkaz:
https://doaj.org/article/d6041e911c124cc88dda086b73f9623c
Autor:
Rahmiana Zein, Jofi Satrio Purnomo, Putri Ramadhani, Safni, Matlal Fajri Alif, Chessia Nodifa Putri
Publikováno v:
Arabian Journal of Chemistry, Vol 16, Iss 2, Pp 104480- (2023)
Textile dye waste, such as methylene blue, has become an ecological and environmental problem. Lemongrass leaves bio-waste (LLB) has emerged as a promising alternative adsorbent for wastewater treatment. This study concerns the modification of LLB by
Externí odkaz:
https://doaj.org/article/c66fa8148eaf49cf885dc09227a14250
Autor:
Refilda, Rahmiana Zein, Yefrida, Zilfa, Upita Septiani, Syukri, Diana Vanda Wellia, Syafrizayanti, Matlal Fajri Alif, Elida Mardiah, Refinel, Admi, Emil Salim, Fitratul Ilahi, Dwi Syukur Phameswari
Publikováno v:
Warta Pengabdian Andalas, Vol 28, Iss 3, Pp 206-214 (2021)
The Qur'an Education Park (TPQ) and Tahzhul Qur'an House (RTQ) of the Raudhatul Adzkia Jorong Dalam Koto Nagari Koto Tangah, Tilatang Kamang, and District of Agam have been launched since 2015. The students who study here are free of charge. The oper
Externí odkaz:
https://doaj.org/article/d0796b60d2fb4286a91b14b76709435a
Publikováno v:
JLI: Jurnal Litbang Industri, Vol 10, Iss 1, Pp 47-59 (2020)
Penelitian ini dilakukan untuk mengetahui kemampuan biosorben kulit batang sagu, arang aktif kulit buah kakao dan cangkang langkitang dalam mengolah air limbah CPO. Penelitian dilakukan pada massa dan laju alir terbaik untuk pengolahan air limbah CPO
Externí odkaz:
https://doaj.org/article/d2028b6891c64cf884a820d5603eec19
Publikováno v:
JLI: Jurnal Litbang Industri, Vol 9, Iss 1, Pp 15-22 (2019)
Penelitian cangkang pensi (Corbicula moltkiana) sebagai penyerap zat warna metanil yellow telah dilakukan dengan sistem batch. Kondisi optimum penyerapan terjadi pada pH 4 dan konsentrasi awal 100 mg/L. Proses adsorpsi terjadi mengikuti model isoterm
Externí odkaz:
https://doaj.org/article/13e770c09f8e41368e9bc008f381e356