**Author details**

Hesham Mohamed Abdal-Salam Yehia\* and Said Mahmoud Said Department of Biotechnology, HST Company, Cairo, Egypt

\*Address all correspondence to: heshamyehia@gmail.com

© 2023 The Author(s). Licensee IntechOpen. This chapter is distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/3.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

*Improving the Quality of Drinking Water by Raising the pH Levels Using a Natural Na2SiO3… DOI: http://dx.doi.org/10.5772/intechopen.112856*

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