UTILISATION OF WASTE DERIVED FUELS

Trouble free operation of pyro-processing section and sustained level of production with the assured product quality is of utmost importance while conceiving the substitution of conventional fuels with the waste derived fuels (WDF). The study involved assessment of the availability and quality of the waste derived fuels in the plant vicinity and subsequently the fuel-mix which would reduce the fuel bill of the plant.

It was considered prudent that during the initial stages only utilisation of partial substitution of the conventional fuel may be made till such time adequate experience is obtained for considering full substitution.

It was considered important to take due care before making the investment, regarding tie-up with the different sources of waste materials on long term basis in terms of the availability and price.

• Utilisation of hazardous and non-hazardous industrial waste as a source of Energy in cement plants thereby reducing fuel costs

Salient Features

Usage of waste derived fuels available in the vicinity of the plant has shown considerable reduction in the fuel bill of the plant. However, the success of such projects is largely dependant on level of enforcement of environmental regulations specifically in relation to disposal of waste.

• To identify and assess the sources of waste which can be used to replace conventional fuels through a detailed market research covering the entire state of Tamilnadu.

• Formulation of plant technical concept
• Study of raw mix design to suit use of WDF.
• Preparation of a quality assurance plan
• Estimation of capital costs
• Assessment of safety and environmental issues involved.
• Assessment of Techno-economic feasibility

  For carrying out the above activities, team of multifunctional specialists conducted the plant visit for carrying detail assessment and interaction with the plant personnel. The recommendations were formulated for proposed modifications required in the various equipment to achieve maximum WDF utilisation in the existing system of cement plant.