Zero waste discharge solution for chemical sludge and ATFD salts from electronics manufacturing
We are seeking practical, scalable, and economically viable solutions that can eliminate/reduce the sludge waste and ATFD salt volumes generated through the ETP and ZLD facilities and identify potential value creation through resource recovery pathways. The treatment process should be capable of seamless integration with the current operations.
commensurate
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.
01 Jun 2026
| 6 Day(s) Left
Challenge details:
Rinse & effluent streams from chemical‑intensive processes are treated at effluent treatment plant (ETP) & zero liquid discharge plant (ZLD). Pretreatment of the same generates significant volume of chemical sludge. Although the sludge is dewatered using a screw press, it still retains around 70% moisture. The final effluent from ETP and ZLD plants is further processed through evaporators followed by agitated thin‑film dryers (ATFD), which produces salts. Both the chemical sludge and ATFD salts are classified as hazardous waste and are currently disposed off through TNPCB approved preprocessors at high cost, ultimately ending up as fuel in cement plants.
We are seeking practical, scalable, and economically viable solutions that can eliminate/reduce the sludge waste and ATFD salt volumes and identify potential value creation through resource recovery pathways. The treatment process should be capable of seamless integration with the current operations.
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Separation of Zn and Fe from GCP sludge cake
Rewards proportional to your differentiated solution! More than one solution is expected to exist. Solution may be implemented without customization.
We seek technologies capable of recovering zinc from blast furnace gas cleaning plant sludge so that it can be safely and effectively reintroduced into the pellet‑making process. Any solution must be compatible with the sludge's typical composition—more than 20% carbon, 6-10% iron, and measurable quantities of manganese, calcium, and other heavy metals—while reducing its hazardous characteristics. Technology providers are expected to deliver end‑to‑end solutions, including feed preparation, zinc recovery processes, and downstream offtake arrangements. Proposed approaches should ensure long‑term operational feasibility and support the company's broader circular‑materials strategy.
Non-Invasive Identification and Verification of Underground Cable Joints Prior to Excavation
Rewards proportional to your differentiated solution! More than one solution is expected to exist. Solution may be implemented without customization.
We are seeking a non‑invasive, above‑ground solution to identify underground cable joints and accurately distinguish the correct live cable among closely spaced cables, without excavation or offline signal injection, to support safe and efficient excavation planning.
Real Time Monitoring of Electrical Systems in Low- or No- Connectivity Remote Locations
Rewards proportional to your differentiated solution! More than one solution is expected to exist. Solution may be implemented without customization.
We are seeking a solution for reliable monitoring of electrical systems and field operations in low or no network environments, enabling secure offline operation, safety‑critical workflows, and seamless data synchronization once connectivity is available.
Eliminating LPG flame curtains in Annealing furnaces
Rewards proportional to your differentiated solution! More than one solution is expected to exist. Solution may be implemented without customization.
Gold jewellery annealing is performed in a furnace with a 75% hydrogen and 25% nitrogen atmosphere, where LPG flame curtains are used at the entry to prevent oxygen ingress during loading and unloading. There is a need to eliminate the use of flame curtains without compromising product quality, process stability, or safety. The solution must prevent oxidation, integrate with the existing setup, and enable safe, continuous operation within current spatial and retrofit constraints.
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