Browsing Chemical Engineering by Author "Lennartz, Bernd"

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Enhanced Defluoridation of Water Using Zirconium—Coated Pumice in Fixed-Bed Adsorption Columns Article

Geleta, Wondwosen Sime; Alemayehu, Esayas; Lennartz, Bernd (2021-10-16)

Millions of people across the globe suffer from health issues related to high fluoride levels in drinking water. The purpose of this study was to test modified pumice as an adsorbent for the purification of fluoride-containing ...
Fixed-Bed Adsorption: Comparisons of Virgin and Zirconium Oxide-Coated Scoria for the Removal of Fluoride from Water Article

Geleta, Wondwosen Sime; Alemayehu, Esayas; Lennartz, Bernd (2022-04-14)

Many people worldwide are exposed to extreme levels of fluoride in drinking water. It is, therefore, critical to develop inexpensive, locally available, and environmentally friendly adsorbents for fluoride-laden water ...
Volcanic Rock Materials for Defluoridation of Water in Fixed-Bed Column Systems Article

Geleta, Wondwosen Sime; Alemayehu, Esayas; Lennartz, Bernd (2021-02-12)

Consumption of drinking water with a high concentration of fluoride (>1.5 mg/L) causes detrimental health problems and is a challenging issue in various regions around the globe. In this study, a continuous fixed-bed ...

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