Despite its high efficiency and effectiveness, Solvay soda production is burdened with large amounts of waste and by-products from the process, which account for approximately 40 % of the soda ash production volume. Can you help CIECH to find new applications (apart from agriculture) for post-soda lime or add value by improving its properties? Join the ennomotive challenge (click on the button below), register, and download the complete description of this competition.
Summary of the Post-Soda Lime ChallengePost-soda lime, waste originated in soda production, is obtained by separating the solid phase present in the distillation fluid. In Polish facilities, distillation sludges, after washing (in order to remove chlorides), are directed to compaction on filter presses. It mainly contains calcium carbonate, calcium sulfate, magnesium hydroxide, silica, lime scale solids, and unreacted calcium hydroxide, calcium and sodium chloride (full composition can be downloaded after joining the challenge). Post-soda lime is applied in agriculture as a calcium fertilizer, containing 50% water and up to 3% of chlorides. The agricultural use of “soda-lime” is related to its seasonal sales and is limited to Poland only. The low added value really limits the transportation feasibility to a radius of 100 km anyway.
What CIECH is looking forCIECH, a leading European soda manufacturer, is seeking for new applications for “post-soda lime” such as new marketable solutions or products (other than calcium fertilizers for agriculture):
- Propose new application areas for post-soda lime and provide its chemical and physical properties.
- Provide the process/technology description for the conversion process of the existing material into the new product.
- Possible/assumed economic effects (Business Case).
Evaluation criteriaAll proposed solutions will be evaluated by the following criteria:
- Technical feasibility.
- The highest volume of material used (partial volumes will be also evaluated)
- The best Business Case (the lowest operational cost and the highest value)
- The lowest hazard of the product generated or solution provided.
TimelineThis is a 2-round tournament with the following timeline:
- 1st round – 6 weeks + 3 weeks for evaluation
- 2nd round – 4 weeks + 2 weeks for evaluation