CCDP 2100 Lecture Notes - Lecture 1: Disinfectant, Chlorine Dioxide, Water Filter

• School: Carleton University
• Department: Communication Courses for Disciplines and Professions
• Course: CCDP 2100
• Professor: Luke Russel

Document Summary

Q2: what are the methods for sustainable water sterilization: Boiling is one of the safest and most effective methods of treating water [1] Kills bacteria by ruining the major functions [2] 99. 999% of water borne microorganisms can be killed at 149 f/65 c in five minutes of exposure [2] Using uv light destroys bacteria"s dna and stops them from reproducing [3] The frequency used in killing micro-organisms is 254 nanometers (nm) [3] After 30 to 80 seconds exposure, uv radiation kills most microbes [2] Process of exposing water to uv light is simple but effective, destroying 99. 99 percent of harmful microorganisms without adding any chemicals to water [3] Chlorine (cl2)- chlorine dioxide (clo2)- hypo chlorite (ocl-)- ozone (o3)- Halogens: bromine (br2), iodene (i)- bromine chloride (brcl)- metals: copper (cu2+), silver (ag+) Household chemicals like iodine and bleach may be used. Used for everything from brita filters to water plants. Different courses of sand separate contaminants from water[6]