Test for Residual Chlorine
The amount of residual chlorine left in the chlorinated water after the required contact period, can be experimentally determined by using any of the following tests:
Orthotolidine test
...
Disinfectants
Ozone Treatment:
Ozone gas, 03, is a powerful disinfecting agent that can be used in drinking water applications.Ozone has been used extensively for disinfection and for taste and odour control in Europe, US...
Chlorine Room
Chloric house should have to following features:
The chlorine cylinders and feeders should be housed in an isolated room, easily accessible, close to point of application and convenient for truck loading...
CHLORINATORS
Hypochlorinators
The simplest method of continuous chlorination of water supply systems for a water flow of less than 200 Lpm is by the use of a hypochlorinator. Hypochlorinators are motor driven pumps which...
CHLORINATION
Adding chlorine gas or liquid or powder to water and get bacteria and micro organism free Drinking water.
This is very low cost process and effective but risky compare with others process in the...
EFFICIENCY OF DISINFECTION
The efficiency of the disinfection depends upon the following factors:
Nature of the disinfectant,
Dose of the disinfectant,
Length of contact time with the disinfectant,
Temperature,
Type and concentration...
TYPES OF DISINFECTANT
Types of chemical disinfectants containing chlorine are hypochlorite, chloramines, and chlorine-dioxide.
Hypochlorites
Instead of using chlorine gas, some plants apply chlorine to water as a hypochlorite,...
CHLORINE AS DISINFECTANT
Chlorine (CI) gas is a greenish yellow in colour and about 2.5 times heavier than air. Liquid chlorine is amber coloured and about 1.44 times heavier than water. CI gas is moderately soluble in water with a...
WHAT IS DISINFECTION ?
Disinfection is the process of selectively destroying or inactivating pathogenic organisms present in water, usually by chemical means. Disinfection aims in reducing the organisms in water to such low levels...
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