Season 1 Challenges

OPENED ON: 01 MAR 2016  |  CLOSED ON: 12 AUG 2016  |  REWARD: INR 1,00,000
Reward money is paid in exchange of legally acquiring the solution, implementing it to solve the problem and meeting the success criteria. Milestones for paying the reward money would depend upon the complexity of challenge and maturity of the proposed solution, which would be discussed with the solver as soon as the proposed solution is selected by us.
Closed

Short Description:

ETP Sludge is generated during the process of industrial effluent treatment in Effluent Treat Plant (ETP). In fully dried condition, it has around 33% Volatile Solids and around 67% Fixed Solids.

Challenge Details

ETP Sludge is generated during the process of industrial effluent treatment in Effluent Treat Plant (ETP). In fully dried condition, it has around 33% Volatile Solids and around 67% Fixed Solids.

The process begins with underflow from ETP which has 96% water and 4% solids. It is pumped on to Sludge Drying Beds for moisture reduction – combination of draining moisture as leachate and evaporation under sunlight.

In around 2 -3 weeks during sunny days, we get ETP sludge with 20% - 30% moisture in the form of lumps. It is disposed for land filling in authorized landfills.

This challenge has two parts:

  • During non-sunny days and especially during monsoon, we are not able to dry this sludge at all 
  • The drying process using Sludge Drying Beds is slow and occupies a lot of space

We are aware of the Green House type sludge dryers and also the mechanical stirrers to expedite the drying of sludge.

We are interested in a solution that will enable us to dry the ETP sludge (to a level of less than 10% moisture) in an accelerated manner without necessarily depending on the sun-light but with lower energy footprint.

A less energy intensive mechanical process or chemical process will also be acceptable.

Have any query or need more clarification about this challenge?