In many parts of the world river water which can be highly turbid is used for drinking purposes. This turbidity is conventionally removed by treating the water with expensive chemicals, many of which are imported at great expense.
Natural coagulants have been used for centuries in traditional water treatment practices throughout certain areas of the developing world.
Crushed Moringa seeds clarify and purify water to suit domestic use and lower the bacterial concentration in the water making it safe for drinking. By using Moringa seeds people will no longer be depending on expensive means originating from the West. Using Moringa to purify water replaces chemicals such as aluminium sulphate, which are dangerous to people and the environment, and are expensive.
Moringa seed powder can be used as a quick and simple method for cleaning dirty river water. Studies showed that this simple method of filtering not only diminishes water pollution, but also harmful bacteria. The moringa powder joins with the solids in the water and sinks to the bottom. This treatment also removes 90-99% of bacteria contained in water. Water from varying sources will need different amounts of Moringa seeds powder because of the impurities present will not be the same. Experiments with a jar will help in working out the correct amount needed.