**Gas, Water and Solid Waste Treatment Technology**

Editors

**Zhien Zhang Avelino N ´u ˜nez-Delgado Wenxiang Zhang**

MDPI • Basel • Beijing • Wuhan • Barcelona • Belgrade • Manchester • Tokyo • Cluj • Tianjin

*Editors* Zhien Zhang The Ohio State University USA

Avelino Nu´nez-Delgado ˜ University of Santiago de Compostela Spain

Wenxiang Zhang University of Macau Macau

*Editorial Office* MDPI St. Alban-Anlage 66 4052 Basel, Switzerland

This is a reprint of articles from the Special Issue published online in the open access journal *Processes* (ISSN 2227-9717) (available at: https://www.mdpi.com/journal/processes/special issues/ waste treatment).

For citation purposes, cite each article independently as indicated on the article page online and as indicated below:

LastName, A.A.; LastName, B.B.; LastName, C.C. Article Title. *Journal Name* **Year**, *Volume Number*, Page Range.

**ISBN 978-3-0365-0762-0 (Hbk) ISBN 978-3-0365-0763-7 (PDF)**

Cover image courtesy of NUNEZ DELGADO AVELINO. ˜

© 2021 by the authors. Articles in this book are Open Access and distributed under the Creative Commons Attribution (CC BY) license, which allows users to download, copy and build upon published articles, as long as the author and publisher are properly credited, which ensures maximum dissemination and a wider impact of our publications.

The book as a whole is distributed by MDPI under the terms and conditions of the Creative Commons license CC BY-NC-ND.
