Zobrazeno 1 - 10
of 78
pro vyhledávání: '"Nurelegne Tefera"'
Publikováno v:
Carbohydrate Polymer Technologies and Applications, Vol 9, Iss , Pp 100637- (2025)
This study developed eco-friendly composite hydrogel based on cellulose and bentonite to remove Pb2+ from wastewater. The composite hydrogel adsorbents' morphology, chemical composition, and structure were characterized using FE-SEM, EDX, FT-IR, and
Externí odkaz:
https://doaj.org/article/4023e4c388a54aa48a6c6a5d26eb0b50
Publikováno v:
ACS Omega, Vol 9, Iss 2, Pp 2815-2829 (2024)
Externí odkaz:
https://doaj.org/article/433d1ac974e048a4a77c90790340406d
Autor:
Gizachew Assefa Kerga, Nurelegne Tefera Shibeshi, Sundramurthy Venkatesa Prabhu, Venkatramanan Varadharajan, Alazar Yeshitla
Publikováno v:
Applied Biological Chemistry, Vol 66, Iss 1, Pp 1-14 (2023)
Abstract Chromium (VI) is known to be harmful element that commonly found industrial waste, mining activities, and wastewater discharges from various industries. When released into the environment, Cr (VI) can contaminate soil, water, and air, posing
Externí odkaz:
https://doaj.org/article/54bd8d3852744990880b1aedd3eec90f
Publikováno v:
Results in Engineering, Vol 21, Iss , Pp 101756- (2024)
In this study, bentonite/amino-functionalized cellulose composite (BAC) adsorbent was synthesized by intercalating the hexadecyl trimethyl ammonium bromide surfactant (HDTMA) into bentonite followed by exfoliating the HDTMA-modified bentonite (MB) in
Externí odkaz:
https://doaj.org/article/47c56fd8041c44618694ead547c37346
Publikováno v:
Results in Chemistry, Vol 7, Iss , Pp 101506- (2024)
Water pollution, driven by Pb2+, poses a significant threat to biotics and the environment. A promising solution to address the issue is the utilization of cellulose from lignocellulosic materials as an adsorbent to remove or reduce Pb2+ from wastewa
Externí odkaz:
https://doaj.org/article/4e255dfafb0f435e86068bd1e366a1b9
Publikováno v:
Results in Engineering, Vol 20, Iss , Pp 101627- (2023)
In this study, a KNO3-loaded coffee husk (CH) ash catalyst was synthesized to produce waste frying oil methyl ester (WFOME) from crude waste frying oil (WFO). Taguchi method optimization was performed to identify the best set of reaction temperature,
Externí odkaz:
https://doaj.org/article/51b2157bc98443eab9abfa92c14596d9
Publikováno v:
Annals of Microbiology, Vol 73, Iss 1, Pp 1-11 (2023)
Abstract Purpose This study aims to screen bacterial isolates from the Addis Ababa municipal solid waste dumping site (Koshe) for the biodegradation of low-density polyethylene bags and analyzes their efficiency in degrading plastic bags. Methods In
Externí odkaz:
https://doaj.org/article/985bcecbc3d5438491c19631988dbe66
Publikováno v:
Foods, Vol 13, Iss 4, p 575 (2024)
This study aimed to isolate lactic acid bacteria (LAB) from a traditional Ethiopian fermented product, Tella, and evaluate their functional properties. Of forty-three isolates, seven LAB were screened and identified as Pediococcus pentosaceus, Latila
Externí odkaz:
https://doaj.org/article/5ee148dafb7a430db91493cf2e3950c2
Publikováno v:
International Journal of Chemical Engineering, Vol 2022 (2022)
The present study aimed to optimize the calcination process parameters (viz., temperature, time, and particles size) for the extraction of aluminum from Ethiopian kaolinite. The kaolinite calcination was done in the temperature of 600–700°C, time
Externí odkaz:
https://doaj.org/article/b8055b380f474f88ba3afef29768ea9b
Publikováno v:
International Journal of Chemical Engineering, Vol 2022 (2022)
The aim of this study was kinetic investigations of aluminum extraction from Ethiopian kaolinite with hydrochloric acid. The effects of extraction parameters, namely, solid-to-liquid ratio (0.05, 0.075, 0.100, and 0.125 g·mL−1), acid concentration
Externí odkaz:
https://doaj.org/article/3e9ad2ed88304710861cd4b4b6d6e2b4