Services.

Biogas

Biogas Research

  • Biogas is produced from organic materials like agricultural residue, animal manures, invasive plants , food wastes and other organic industrial wastes. The increasing number of businesses, private households, industries, as well as energy companies, are backing the sustainable creation of electricity and heat by using biogas.
  • The generation of biogas warrants the use of cheap affordable and abundantly available raw materials. Invasive plants like Eichhornia crassipes and parthenium are creating health and environmental problems around the world.
  • We are developing biogas technology to utilize these wastes and generate renewable power or bio-CNG. The generated biogas can also be used in fuel cell for generating power.
  • Simple, Compact and Flexibility of design.
  • The reactor can be adopted to use various organic wastes.
  • Tolerance to particulates – system allows for high solid content. The designed reactor will ensure high SRT increasing solid utilization and increased gas production.
  • The reactor can also be operated as a pack bed and packing material can be used as a support for growing bacteria.
  • Isothermal operation can be achieved avoiding temperature gradients in turn affecting bacterial activities.

Biogas Production

  • We are developing novel cultures for biogas production from Eichhornia crassipes and parthenium.
  • Consortium consisting of fungus and bacteria has been designed to effectively degrade these biomasses to produce biogas.
  • The culture effectively degrades feedstock to produce biogas with high CH4 content .
  • The designed culture has reduced the gas generation time by half.
  • The designed culture is also effective in producing biogas from other wastes like agricultural residue, food and fruit wastes etc.

Biogas Reactor

  • The reactor system also includes a pump, column and receiver connected together with necessary piping. Suitable control systems (for heating, cooling, dispersion level, pressure, liquid flowrate control etc.) are included as required. In the system, the column will act as a well mixed section promoting harmonious growth of bacterium consortia under anaerobic conditions, and the receiver will act as upward flow anaerobic sludge blanket (UASB), reactor in which gas and slurry separation will occur and gas will be collected from the top. As the system is a close loop system minimum washout of active microbial culture will occur.
  • Power consumption.
  • No foaming possible as no free gas-liquid interface at the inlet.
  • No internal Moving parts – like stirrer etc. and therefore reduced Capital as well as operating costs. This would prevent damage to growing bacteria.
  • In case of aerobic process, 100% gas utilisation and greater than 95% approach to equilibrium in very short contact times. The concept has been successfully tested for growing yeast.
  • High rate of digestion would ensure higher productivity in smaller reactor column.
  • High and accurate control of Interfacial areas (1000 – 6000 m2/m3 depending on bubble sizes) – allows for improved reaction rates and reaction specificity.
  • The reactor can also be used for leachets obtained from leaching of energy crops and other hard to digest material.
  • Easy Scale-up without loss in efficiency.

Application of Biogas Reactor

  • Production of other renewables fuels like ethanol and butanol.
  • Production of biodiesel.
  • Production of algal oil for biodiesel production.
  • Biogas clean up for CNG production.