The paper “ Chemical Safety Usage and Handling” is affecting variant of a lab report on chemistry. Lime, in the form of lime water, is injected into drinking mixers to change distillate water into drinkable water. This lime will react with carbon dioxide (CO2) to produce carbon hydocarbonate. That reaction is represented by the equation below: Ca(OH)2+CO2 CaHCO3 (Calcium Bicarbonate)Sea WaterIn order for it to have the taste as well as the minerals, seawater is added to the drinking water. The conductivity is measured to know how much seawater to add to the drinking water.
Conductivity ought to be maintained at 350 µ s/cm and 450 µ s/cm. It should be noted that the greater the conductivity, the lower the seawater we will add. ChorineChlorine is used as a disinfectant to remove the bacteria and marine organisms (algae) from the drinking water. The concentration of these additives should range between 0.4 ppm and 0.6 ppm. Chlorine is also essential in controlling the algae growth in the seawater, sterilizing drinking water as well as cooling the water system. Potassium Permanganate (KmNO4)This chemical is used to oxidize the Carbon Monoxide (CO) to Carbon Dioxide (CO2).
Additionally, it is used to remove any MEA or ash carry over. Its main character in this process is that it is a strong oxidizing agent. Mono Ethanol Amine (MEA)Monoethanol Amine is used in a carbon dioxide generator plant with a concentration of 15% solution to separate CO2 from other gases (absorb CO and CO2 between 40 and 800C) and release CO and CO2 above 800C. Tri-Sodium Phosphate (Na3PO4)Tri-Sodium Phosphate is used in GUP for boiler water conditioning to control traces of hardness and to adjust pH.
It is used as anticorrosion in both drinking and distillate mixers at a concentration of 3% because lime is used in this case. (Nowadays, drinking mixers are out of service). It is equally used in the boiler injected in the discharge of the boiler feed pumps to draw at a concentration of 5%. Hydrochloric Acid (HCl) and Sodium Hydroxide (NaOH)It is not used in the WTP anymore but was used in the regeneration of the polishing lines. Hydrochloric acid was used for the regeneration of WTP ‘ cation’ resin. It is also used in the adjustment of the neutralization pit ‘ pH’ .Sodium Hydroxide, on the other hand, is used as an anion resin regenerator.
It is also used to adjust the neutralization pit ‘ pH’ .Diethanol Hydroxyl Amine (DEHA)It is a mixture of steamed and control. It is an oxygen scavenger. It is also used to remove the oxygen from the feed water before it goes to the boiler to prevent corrosion. This mixture is injected into the suction header. ControlIt is a chemical used in the boiler in order to increase the pH value to between 9 and 10 to make it alkaline (basic) to protect the boiler and tubes (boiler protection). AntiscaleIt is prepared in the WTP and dosed in the MSF dosing tank to prevent scaling. CorrshieldIt is a chemical that is injected into the secondary cooling systems to minimize scaling and to kill algae.
Additionally, if pH or conductivity reduces, it is injected into the system.
ReferencesEdward, James. Water Quality and Treatment. 6th ed. New York: McGraw-Hill, 2011. Print.