 Green synthesis of zinc oxide nanoparticles, ZNONPS, using biological substrates offers numerous benefits compared to traditional methods. These include cost effectiveness, simplicity of scaling up, reduced environmental impact, and increased efficiency. Additionally, the use of biological substrates for the production of ZNONPS provides a viable alternative to traditional methods. Furthermore, the use of these nanoparticles for industrial effluent remediation is a promising field for future research. This article was authored by Ahmed E. Al-Prol, Abdullah Tagaldine Mansour, Hassam S. Al-Baltaji, and others.