The Dye Is Cast

This Problem Solving with Industry module was devised by the Centre for Science Education in collaboration with ICI Huddersfield. The problem presented by this module is to find ways to control the colour and acidity of the effluent from a manufacturing plant which will be producing indigo dye.

Tasks
* Task 1 - reading and responding to letters and memos exchanged within the Dye Plant
* Task 2 - a practical investigation to devise a method to identify the dyes present in the effluent from the Dye Plant.
* Task 3 - investigating practically the concentration of the dye with the help of a research paper.
* Task 4 - a third investigation, based on another research paper, to devise a suitable method for removing the colour from the Dye Plant effluent.
* Task 5 - a final investigation, based on a further research paper, of a suitable method for neutralising the acid present in the effluent from the dye plant.

Finally students write a full report for the Chief Chemist about the results of the investigations carried out in tasks two to five, together with any conclusions and recommendations about the production of the dye.