High Rate Bio-Methanation Technology

News: A new high rate biomethanation technology for the integrated treatment of sewage and organic solid waste and concomitant generation of biogas and bio manure can treat groundwater and wastewater and convert it to potable water.

Details:

  • Solid and liquid wastes are major challenges faced by big cities as also for the rapidly urbanizing areas, and sustainable technologies are needed for tackling them.
  • An integrated treatment of sewage along with organic solid waste in India could help evolve a sustainable technology to overcome the solid and liquid waste disposal issues. It can be used for sewage and organic solid waste treatment with decentralized applications in various parts of India.
  • Thisintegrated and sustainable sewage and organic solid waste treatment system can be used for treating groundwater and wastewater and generating potable and reusable water, respectively.
  • The technologies supported by the ‘Waste Management Technology’ program of the Department of Science & Technology (DST), Govt. of India have received national patents individually.
  • An integrated model plant comprising of AGR and NF technologies has been established at CSIR-IICT, Hyderabad, for the simultaneous treatment of sewage (100 liters/day) and organic solid waste (250 kg/day) for the generation of value-added products such as biogas, bio manure, and reusable water.
  • The integrated technology is field-tested and working continuously for the past two years.
  • This integrated approach of sewage and organic solid waste treatment could be exploited anywhere in India, where municipalities comprising around 50,000 to 1,00,000 population generate approximately 2 to 4 million litres per day of sewage and 5 to 10 metric tons per day of organic solid waste.

Benefits:

  • It incorporates best features of high-rate anaerobic digester.
  • This technology encompasses novel pre and post-processing mechanisms
  • Advanced digester design
  • Smaller digester volume
  • Easier to scale-up and multiplication
  • Semi-automatic plant operation
  • Higher biogas yield
  • Generation of organic fertilizer
  • Locally available enriched microbial consortia
  • Remunerative for decentralized application
  • Distributive biogas plants at waste generation source
  • Use of by-products will make the plant sustainable