Many other conditions sometimes cause weakness (see Table: Some Causes and Features of Muscle Weakness). For example, electrolyte abnormalities (such as a low level of magnesium or calcium) can cause weakness that sometimes comes and goes, as well as muscle cramping and twitches.
For swimming pool chlorination, see Swimming pool sanitation. Water chlorination is the process of adding chlorine (Cl. 2) or hypochlorite to water. This method is used to kill certain bacteria and other microbes in tap water as chlorine is highly toxic. In particular, chlorination is used to prevent the spread of waterborne diseases such as cholera, dysentery, typhoid etc.
Distillation is the most widely utilized separation technique and there are basically two. main types of chemical treatments in distillation columns; one is for corrosion control. and the second is fouling control. Distillation can be utilized in very clean services such as ethylene fractionation which,