Effective Microorganism
Effective Microorganism

Effective Microorganism

EM stands for Effective Microorganism was developed at the University of Ryukush, Okinawa, Japan in the early 1980s by a distinguished professor of horticulture, Dr. Teuro Higa. EM is a mix culture of aerobic and anaerobic, non GMO (Naturally Occurring), non-chemical, nontoxic (environmental friendly), and non-pathogenic (beneficial) microorganism.

EM encourages the growth of beneficial microbes indigenous to the environment. EM detoxifies contaminated water and soil and facilitate the restoration of an ideal biological balance. The potential of EM in treating all kind of waste, including effluent generating by industrial, agriculture and consumer application is therefore limitless.

When EM is introduced to a polluted area like wastewater, Solid waste and soil the EM microorganism will immediately begin feeding on the organic matter and multiplying – creating in the process, enzymes that curb pollution.




Synthesize anti-microbial and other useful substances from amino acids and sugars produced by photosynthetic bacteria



Produce lactic acid from sugars & carbohydrates which suppresses harmful micro-organisms and enhances decomposition of organic Matter



They synthesize useful substances like amino acids nucleic acids etc. from organic matter/harmful gases(H2S)

Wastewater treatment

Industrial and municipal wastewater treatment:-

The wastewater from industries and household varies so greatly in both flow and pollution strength. So, it is impossible to assign fixed values to their constituents. In general, industrial wastewaters may contain suspended, colloidal and dissolved (mineral and organic) solids. In addition, they may be either excessively acid or alkaline and may contain high or low concentrations of colored, lignin, cellulose and other complex organic matter. Use of EM will help in degrading complex organic matter into simpler form and also suppress harmful bacteria in system. There are some major benefits of EM listed below.

  • It reduce the BOD, COD, TSS, Total and Fecal Coliform in all effluent and sewage to PCB norms.
  • EM reduce the use of chemicals such as alum, lime, chlorine etc.
  • The use of EM leads to a large reduction in the Running Coast of an ETP
  • Reduction in sludge volume up to 20 % & No further treatment is required for sludge obtained
  • The pH value is controlled by the microorganism, so that effluent, after being treated, carries a neutral pH of around 6.5 to 7.5.
  • Use of EM also increase MLSS in biological reactor.
  • It helps reduced commissioning period of ETP/STP.
  • Improve plant stability and easily handled shock load.
  • EM suppress the foul order in effluent in a very short time.
  • No structural changes are necessary for implementing the technology. It can be easily applied into an existing ETP or STP and is equally effective for any other size of operation – be it river, dams, lake, hotel or private homes.
  • By reducing the retention time, it enhances the capacity of ETPs and STPs by over 25%.
  • Improve response to shock load and cold weather operations during winters.
  • Improve recovery from nitrification
  • Bring about bio-augmentation
  • EM technology is 100% Natural, Nontoxic & Eco-Certified.



Bioremediation: “Remediate” means to solve a problem, and “bio-remediate” means to use biological organisms to solve an environmental problem such as contaminated soil or groundwater and water bodies.

A healthy aquatic environment is a delicate balance between its ‘organic’ and ‘inorganic’ constituents. A common problem is that a water body has too much complex organic material present – this settles to the bottom where it forms silt and sludge and reduce capacity of aquatic body. The settled silt and sludge becomes the home for anaerobic bacteria which feed on the organic material, producing methane and hydrogen Sulfide gas – making the mud anxious and locking up nutrients.

EM is extremely efficient in breaking down the complex organic matter into simpler form, so that it can be used by other microbes like phytoplankton which in turn become feed for zooplankton and other invertebrates, which are in turn become food for fish. As these beneficial microbes grow in numbers, so do their capabilities to bio remediate water, soil and waste material.



Spray of activated EM to degrade organic pollutant


Throwing mud balls in to water bodies to cleanup water bodies where there are concentrated deposits of sludge and slime on bottom.

Ulsoor Lake-Bangalore Bioremediation with EM Technology






Every day, urban India generates 188,500 tons of MSW (or 68.8 million tons per year) and the waste generation increases by 50% every decade. More than 80% of this waste to reach open dumpsites where it causes damaging public health, deteriorating the environment, and causes climate change. Almost 72% of this waste is organic that is easily biodegradable and easily manage by EM technology and convert it into organic fertilizer that is rich in NPK and good for soil health. Some key benefits of EM for Solid waste is listed below.

  • EM readily degrade organic matter and convert it into Eco friendly product named “compost”.
  • Compost is rich in NPK and use as an organic fertilizer in gardening.
  • EM Suppress foul odor from garbage.
  • The volume of gases discharged from solid waste like CO, NH3, SO2, H2S and CH4 decreases to a large extent in the presence of EM-1. Foul odor is substantially removed.
  • Contaminated water from garbage is cleaned.
  • Suspended water from garbage is removed.
  • Suspended dust (TSP) reduce sharply.
  • The larva of flies and mosquitoes is minimized.
  • The cost of EM-1 treatment is almost negligible, compared to the cost of treatment garbage with time and insecticides.
  • EM-1 reduce the fermentation period drastically. The volume of solids waste is reduced quickly.
  • The compost processed from fermented garbage is supplemented with useful microorganisms, which make the compost imminently suitable for agricultural.


Pune MC EM Composting Site


Spraying EM Solution


Turn-off of waste in Action


EM Compost being carried by Farmers

Landfills site treatment :

A landfill is a designated area in which a carefully designed structure is built into or top of the ground where waste is brought and dumped. Landfills are the easiest and cheapest solution to getting rid of garbage problems. Landfills contain primarily Municipal Solid Waste (MSW). The major problem are Landfills create a clear and obvious threat to human health as well as a threat to our environment from the hazardous contaminated air emissions emitted from the landfill biodegradation. The key environmental problem we face as a result of landfills is groundwater pollution from leachates (the liquid that drains or ‘leaches’ from a landfill). EM technology helps in reducing air pollution and leachate problem. EM are added to leachate and the landfill waste to detoxify the leachate, eliminating the worries of groundwater contamination.


EM Application for leachate treatment


Light colored and odorless EM treated leachate