Lead And Cadmium: An Experimental Study

1. INTRODUCTION Water is a transparent, odorless, tasteless liquid and the most essential element of life on earth. It is widely considered as the basic unit of life and life is not possible without it. According to Zachary Shahan (2012) water covers 71% of earth’s surface, it includes oceans, sea, lakes, etc. but only roughly 1.08% can the people access on domestic use. The world use water every day both indoors and outdoors, it is a need in toilet, leak, shower, clothes washer, faucet, and to refresh a person’s body. According to Environmental Protection Agency (2014) water is also a need industrially, commercially, in agriculture, and to produce electricity for example the Thermoelectric Power, Irrigation, Public Supply, Mining, and to

An example of a heavy metal is Mercury (Hg), Cadmium (Cd), Arsenic (As), Chromium (Cr), Thallium (TI), and lead (Pb). The heavy metals that are present in almost all the wastewater are Lead and Cadmium. As the researchers know, Lead and Cadmium is one of the most toxic heavy metals existed on earth, a lead poisoning could lead to a serious brain damage like seizures, coma, or even death. Cadmium concentrations may cause to either acute or chronic poisoning (Cafasso, 2016). There are already experiments about the possible lead contaminated drinking water (Centers for Disease Control and Prevention, 2016) and because of that the researchers achieves to create a prototype filterer that could filter out the heavy metal in any variety of water. A water filter removes impurities by minimizing contamination of water by using physical barrier, chemical process, or a biological process. Boiling a tap water alone could not remove all the harmful substances and because of that some filterer uses reverse osmosis with carbon filterers and ultraviolet light as that would be the most efficient way to filter a water but some filterers simply the charcoal filtering and it does not removes a large quantity of toxic chemicals present in the water. There are a lot of filterers available on the global market but some of them are