| 1 | Environment and eco-system to comprehend what is |
| 2 | To recognize that arise during the production of leather wastes |
| 3 | Comprehend the properties of solid and liquid wastes Leatherworking |
| 4 | make can classifing liquid wastes |
| 5 | Learn techniques to purify liquid wastes |
| 6 | Liquid waste recovery techniques within the grasp of chemicals in the |
| 7 | Gain awareness of environmental protection |