1 Subjects: “...national power system...”

2 Subjects: “...national and global efforts...”

3 “... Development Goals (SDG) of the United Nations....”

4 “... wastewater can meet national effluent standards for the protection of the environment and the protection...”

5 “.... The United Nations Climate Change Panel has urged the consideration of the agricultural practices...”

6 “... strategic priority at local, national, European, and global levels. This Special Issue will pay attention...”