MERCURY REMOVAL FROM DAIRY WASTEWATER BY USING MEMBRANE DISTILLATION

Abstract

Milk is one of the essential and necessary nutrients and maybe a basic substance in some places and all stages of human life. Milk is rich in many important elements for life and durability. Toxins and heavy elements may enter the milk and then into the human body due to pollution, and mercury is one of these pollutants. This product, despite being important, the production process is accompanied by a lot of liquid waste, which may lead to significant environmental damage. All small tests and misilianiuse works as well as the test of characteristics have been achieved according to American Public Health Association (APHA), American Water Works Association (AWWA), and Water Environment Federation (WEF). Mercury concentration has been achieved according to HACH procedure. In this topic, the membrane distillation process has been used to remove mercury, and the results were the ability of the membrane distillation mechanism to remove mercury 89.044% at the start of the operation, which would decrease due to obstruction. The temperature affects work efficiency and removal by MD, but to some extent, when removal reaches the maximum temperature of 15 ° C. The study came out with a set of recommendations, including a broader study on the possibility of cleaning the membrane used in this mechanism when a blockage occurred without stopping the work of this mechanism. Emphasis should be on what was found more than what was done.