The growing concern and environmental norms for Zero Liquid Discharge, Wastewater Pollution is becoming  a challenge in the Industry. Conventional systems involving Physico-chemical treatment or two stage aerobic treatments are associated with very high operating costs. The Innovative IR Reactors /EGSB anaerobic treatment reduces the COD/BOD level and can  also generates Biogas. The digested water is treated using membranes to give high recycle of water


  • Breweries / Distilleries/Wine
  • Paper and Pulp Industry
  • Dairy / Food / Juices
  • Animal Houses / Slaughter House
  • Vegetable Oil Refineries
  • Starch Industry
  • Petrochemical and Refinery
  • API / Organic Chemicals

Features and Benefits of choosing Anaerobic Treatment

  • Better and more constant process water quality
  • Reduction of chemical usage
  • Reduced water hardness
  • Net energy production   (biogas can cover up to 5 % of steam demand)
  • Compact treatment system.
  • High Recovery Of Biogas
  • Reduction Of Sludge
  • Smaller Footprints
  • High return on investment
  • Up to 90% savings on discharge costs
  • Low operational costs;
  • Conversion of wastewater into valuable energy
  • No sludge discharging costs
  • Smart engineering and design.
  • Proven technology
  • Applied worldwide for over 35 years
  • Applied in various types of wastewater
  • High quality products
  • High quality materials are used
  • Lifetime of over 20 years.


Aerobic Treatment

BOD +  O2   =>  H2O   +   CO2   +   BIOMASS

Aerobic sludge

  • Very High growth rate
  • High energy requirement
  • High sludge production
  • Floccular sludge


Anaerobic Treatment

COD è       =>        CH4     +     CO2     +     BIOMASS

Anaerobic methanogenic biomass

  • Low growth rate
  • Production of reusable methane
  • Low sludge production
  • Granular biomass

Process wastewaters is taken into and  Equalization Tank which is mixed by a submersible mixer. The Flow and organic loading fluctuations are  balanced in this tank. The wastewater streams are pumped to static screens where particulates bigger than 0,3 mm are separated. The Wastewater pH is adjusted and required nutrients are mixed. IR Reactors are used for anaerobic stage. High organic loads are digested in the IR Reactor by anaerobic microorganisms and biogas is collected from the top of the reactor.

Produced biogas can be burnt into the flare or utilized. In the lower reactor compartment most of the organic components are converted into methane and carbon dioxide. This gas mixture, or ‘biogas’, is collected in the lower level phase separator. This generates a ‘gas lift’, which forces the water upwards through the riser into the liquid/gas separator on to the top of the reactor. The biogas leaves the reactor through this separator, and the water returns through the downer back to the bottom of the system.

Anaerobically treated wastewaters now enter aeration tanks and are treated aerobically. Very special and efficient aeration systems are used to keep the aeration energy low.

Technical Specifications

  • COD range of 1,000-150,000 mg/l
  • Able to treat loads from 20 kg up  to 5000 kg COD/day
  • Congestion-free influent system
  • Unique settling system
  • Congestion-free influent system
  • Designs available in – GRP, AISI 304/316 and RCC