Microorganisms have much to do with the process of water purification in nature. Even in the latest water purification technology such as the activated sludge process, microorganisms play a major role.
Self-purification power of water works well under the indigenous ecosystems functioning properly with a rich aquatic ecosystem pyramid .In polluted water with sludge accumulating at the bottom and foul odors, self-purification power decrease as the result of the dominance by putrefactive microorganisms. This leads to decrease of nutrition necessary for ecosystems to function and keep their purification.
Applied to polluted and putrefactive water, EM holds a dominant position in the layer of microorganisms and help ecosystems revive and reduce sludge and foul odors. The purpose of EM application is not to create apparently-clear water by chemical means but to revive the native function of aquatic ecosystem. In this sense, Depending on the overload of drainage and the volume of water, the amount and the frequency of Application of EM should be various.
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