Impact of Unhairing Liquor and Chromium Spent Solution Recycling as an Alternative Treatment Option in Leather Industry | Biomed Grid

Hides and skins need treatment to be leather, this treatment processing pass from soaking to retainage which require chemicals including preservatives, salt, lime, sodium sulphide, ammonium sulphate, bating materials, acids and alkalis. These chemicals and proteins are much polluted and need to be treated to protect the environment however the treatment is not efficient and considerable amount of chemicals and water are drained. On the other hand the recycling method save chemicals, water, protects the environment and that no waste treatment plant is needed, the study was done in National Leather Technology Center, Sudan where ten trials were carried out for recycling, for each process from soaking, liming to tanning as show in tables, This reduces the cost of the product and gives more protection to the environment. So, it is recommended that the method of recycling is to be generalized to all tanneries.