you will be writing an essay about ( Enhanced the membrane distillation by ultrasound application ). i will attach a file (Essay structure and requirement) this will tell you how the essay should be written, you need to fulfill all the requirement. File (brief) will explain more about the topic that you are going to be writing, you can paraphrase it on the essay. Word file will be attach under the name (H project) carry on from there. i will attach some file as well under the name (information) it contain some research about the topic the you need to read in order to write the essay. in this essay i will be working in how to improve membrane distillation by ultrasound so you can mention some future work as well