The investigation of natural filtration materials such as bentonite, perlite, and date seeds are

part of the research program we are conducting aimed at resolving the urgent problem of

sustainable water management in arid areas, for example, Egypt, by studying the

effectiveness of these materials at treating greywater for irrigation usages. Utilizing the

filtration method in conjunction with submerged membrane bioreactor (SMBR) technology,

the research evaluates how effectively greywater can be cleaned of organic matter, heavy

metal, and contaminants. The data shows that perlite provides better solid and organics

reduction than SMBR, eliminating more pollutants from the water body. The purified

greywater fulfills directives of the water authorities regarding reuse for irrigation, thus

demonstrating the role of ¨natural¨ filtering materials and advanced treatment technologies in

maintaining water sustainability. This scientific study, hence, highlights the influence of

nature-based variants in water treatment techniques to achieve sustainable water goals as

mentioned in Egypt`s Vision 2030.