2014 in some places kitchen greywater is considered as black water oron et al.
Methods of household purification of water.
1 what is involved.
The methods presented in this factsheet are used to make water drinkable.
Household water treatment and safe storage hwts interventions can lead to dramatic improvements in drinking water quality and reductions in diarrhoeal disease making an immediate difference to the lives of those who rely on water from polluted rivers lakes and in some cases unsafe wells or piped water supplies.
Water purification is the process of removing undesirable chemicals biological contaminants suspended solids and gases from water.
Household water treatment systems boiling.
Greywater is wastewater discharged from showers bathtubs washing machines and kitchen sinks while black water is toilet wastewater paulo et al.
The 5 different types of water purification methods.
It is effective because it kills 99 9 of all living things and vaporizes most chemicals.
The methods described comprise.
Ground water wells springs may need no treatment other than disinfection.
The fact sheets in this section deal with both community and household methods for treating water.
Some household treatment methods and their effectiveness are summa rized in table 6 1 whereas the following household and community water treatment technologies are described in greater detail.
Methods available for purifying water on an individual or domestic scale are.
Boiling is the simplest of all water purification methods.
Household purification of water 1.
Water can be heated to temperatures of 55 c in transparent bottles exposed to sunlight for several hours especially if the bottle is painted black on one side or is lying on a dark surface that collects and radiates heat this method of treatment utilizes both the uv radiation in sunlight as well as the thermal effects of sunlight to inactivate.
Boiling chemical disinfection filtration ultraviolet irradiation multi stage reverse osmosis purification these methods can be used singly or in combinationboiling it is an excellent method of purifying water but for being effective.
Straining the three pot method treatment by boiling treatment by chlorination treatment by ceramic filterslifestraw method treatment by slow sand filtration the naiade method uv radiation sodis.
They can be applied at hole at the family level.
Wastewater originating from households is divided into greywater and black water based on its composition.
Purification of water on a small scale 34.
It s a good method to use for water contaminated by living micro organisms.
Purification of water on large scale the purpose of water treatment is to produce water that is safe wholesome.
The water must be brought to a rolling boil for 10 20 minutes.
Thermal treatment with solar radiation.
The goal is to produce water fit for specific purposes.