Quick Answer
Chemical treatments for water include chlorine, iodine, and chlorine dioxide, which are effective against bacteria, viruses, and protozoa. Chlorine is the most commonly used water disinfectant, but it can have unpleasant tastes and odors. Chlorine dioxide is more effective than chlorine and leaves no taste or odor.
Common Chemical Treatments for Water
Chlorine is the most widely used chemical treatment for water due to its effectiveness and low cost. A solution of 2-3% sodium hypochlorite (NaOCl) is typically used to disinfect water. The ideal treatment time is between 30 minutes and 1 hour, depending on water temperature and chlorine concentration.
Iodine-Based Treatment
Iodine is another effective chemical treatment for water, commonly used in the form of iodine tablets or liquid iodine. The recommended dosage for iodine treatment is 5-10 mg/L. Iodine is effective against bacteria, viruses, and protozoa, including Giardia and Cryptosporidium.
Chlorine Dioxide Treatment
Chlorine dioxide is a more effective and safer alternative to chlorine for water disinfection. It has a high oxidation potential, making it effective against a wide range of microorganisms, including bacteria, viruses, and protozoa. The recommended dosage for chlorine dioxide treatment is 0.5-1.5 mg/L, and the treatment time is typically 15-30 minutes.
Find more answers
Browse the full Q&A library by topic, or jump back to the topic this question belongs to.