Different ways to highly purify and remove the presence of lead from wastewaters

this paper is for my chemistry seminar, I’m writing my research paper on “ways to remove lead from waste waters”, I have already done the paper and only need auditing on it, my professor has already given comments on it which you will be able to see ass soon as you open the document, I want you to if you can work on the comments and fix the errors that she pointed out. I will attach this documents along with the Term Paper guidelines and requirements for each section, also the articles in this case 4 needed to write this paper, no other sources should be used to write this paper but the articles I’m providing, also anything coming from the articles need to be cited, the author guidelines that I’m also providing. thank you and feel free to contact me for any further information needed