Hamidreza Engar - Master's student in chemical engineering, Separation Department, University of Tehran
Nikan Golestani - Bachelor of Computer Engineering, Dehkhoda Institute of Higher Education

Agricultural fertilizers and pesticides can be a major limitation for freshwater because they contain large amounts of phosphorus and nitrogen; This issue causes the formation of subsequent problems such as the creation of dead water, the formation of microbes and parasites, which in turn can be very dangerous, but one of the prevention methods can be chlorination on a small scale to prevent further problems. ; But this issue itself needs serious attention because this method has its own advantages and disadvantages, for example, in some cases, chlorination cannot eliminate some parasites, and even in some cases, if used incorrectly, It is having the opposite effect.

trihalomethanes, chlorination, Cryptosporidium, microorganisms, meshing