WWTALG for Wastewater Treatment
  • Produce oxygen with low energy input
  • Remove soluble N and P
  • CO2 fixedBiomass produced
  • Rarely settle well
  • Failure to meet suspended solids limits (~45 mg/L)
  • Interfere with disinfectionBiomass produced
Contents of WWTALG:
  1. Spirulina
  2. Nostoc
  3. Chlorella
  4. Azolla
  5. Anabaena
  6. Enzymes

Add CO2 to Balance C: N: P
Algae: C: N: P           = 50: 8:1

Wastewater: C: N: P  = 20: 8: 1
Salient Features of WWTALG:
Improved and accelerated treatment.
Biomass fuel provides greenhouse gas abatement.
WWTALG savings: ~Rs100 per L oil produced   (Marginal oil cost is only for extraction/processing).
Energy used in WW treatment decreases: 4 KWH saved per L oil produced.Fuel production residue becomes fertilizer.
1 L Bottles
1 ml / 10 KL Water medium / day 
Effluent treatment using Beneficial Algae​
Industries where algae can be used to treat waste waters:

Providing Sustainable Green Technology Solutions 


Flagship India

  • Advantages of waste water reuse for agriculture include the following:
  • Reduced prevalence of diseases which are caused by the use of untreated waste water for irrigation where water is unavailable for the cultivation of crops.
  • It will help to conserve freshwater resources and their wise use particularly in areas under water stress.
  • It will avoid surface water pollution caused by the release of untreated waste water in rivers and lakes.
  • Contribution to better nutrition and food security for many households (WHO, 1989).​
  • Bio-fertilizer production units
  • Municipal Waste Waters
  • Dairy
  • Poultry
  • Distillery & Breweries
  • Foods
  • Meat processing plants
  • Pulp and PaperTextiles
  • Chemicals
  • Dyes and pigments,
  • Metalworking
  • Mining
  • Oil Refineries
  • Petrochemicals
  • PharmaceuticalsLeather