INDION® INTEGRATED WASTE TO ENERGY SYSTEM FOR ORGANIC SOLID WASTE
The INDION® Integrated Waste to Energy System design is a cost-effective treatment that takes a radically different approach using a novel combination of proven technology to manage the problems of sewage sludge and organic kitchen.
The plant treats organic kitchen waste to produce Renewable Green Energy and Rich Organic Fertilizer thus reducing the burden of waste management and recovering valuable by-products in the process.
Organic solid waste means any segregated waste from the kitchen of residential complexes or cafeterias of residential, industrial, or commercial complexes etc. Sewage treatment plants (STP) provided for community hotels/ institutes/ universities generate huge amounts of sludge which needs to be dewatered and disposed.
The basic objective is that the STP sludge is full of active microorganisms and organic Solid/ Kitchen waste has high degradable organic content (food for these microorganisms). This enriched mixture of Organic Solid/ Kitchen waste and sewage sludge is biochemically digested in an anaerobic digester to convert organic content to carbon dioxide (CO2) and methane (CH4). Other than biogas, this treatment process also generates organic sludge which is a very good organic fertilizer and clean effluent.
The sewage sludge is combined with organic Solid/ Kitchen waste at the treatment facility to generate homogenous mixture and to create a pumpable slurry which is then pumped to the Anaerobic Digester to produce biogas with 50%-70% methane content depending upon the input feed to the system. This also helps in achieving maximum biogas generation.
The Biogas generated has a methane content between 5-%-70% and depending upon the Client’s requirement can be utilized for its heating application (in the kitchen and thus displacing their dependence of LPG requirement) or can be converted to electrical energy by attaching a biogas genset for their requirement of lighter electrical loads after going through the biogas cleaning system like moisture trap and H2S Scribber.
The process consists of following units:
- Reception of Segregated Organic Solid Waste (Hopper) and STP Bio-sludge conditioning.
- Mechanical pre-treatment: To shred organic waste and homogenize it with thickened sewage sludge via macerator.
- Buffer Tank which maintains a charging capacity of 6-12 hrs of organic feed for the micro-organisms
- Anaerobic Digester where the homogeneous sludge is fed for the production of Biogas. The system is insulated and operates in mesophylic conditions (temperature is maintained between 37 degree C and 42 degree C) via external heat exchanger. The mixing in the insulated system is realized through the stirrer and additionally via recirculation pump
- Biogas handling system: Biogas generated from system is stored in Biogas Balloon and shall be treated through moisture tram and H2S scrubber and the converted to electrical power and heat (based on Client’s requirement).
- Digested sludge shall be dewatered and used as organic fertilizer/ manure. The organic fertilizer can be used in agriculture and landscaping.
This integrated and holistic energy, waste and wastewater management system is a net power generator, compared to conventional systems that consume large amounts of energy. Focus is on simultaneously ensuring environmental protection and resource recovery from waste.
The INDION® Integrated Waste to Energy System represents a forward-thinking solution to the pressing issue of organic solid waste management. By ingeniously combining sewage sludge with organic kitchen waste, this system not only addresses the challenge of waste disposal but also transforms it into valuable resources such as renewable green energy and high-quality organic fertilizer. This sustainable approach not only alleviates the burden of waste management on our environment but also contributes significantly to energy conservation and resource recovery. The INDION® system exemplifies how innovative technologies can turn waste management from a problem into an opportunity, showcasing a path forward for communities and industries to achieve environmental sustainability and energy self-sufficiency.
