Tanning Industry - Chemicals Handling in the
The tanning industry gives rise to two types of hazard involving chemicals. Firstly, those concerning particular chemicals used in the various tanning processes, and secondly, chemical substances produced as by-products of the chemical reactions occurring when a hide undergoes the tanning process. This guide considers each of these two hazard types and gives suggestions for control.
The Tanning Industry Safety Committee which produced this guide also produced Machine Guarding in the Tanning Industry.
Table of Contents
1. INTRODUCTION
2. CHEMICALS USED IN TANNING PROCESSES
2.1 High Potential Hazard Group
2.1.1 Acids
2.1.2 Caustic Materials
2.1.3 Formaldehyde
2.1.4 Glutaraldehyde
2.1.5 Hydrogen Peroxide
2.2 Moderate Potential Hazard Group
2.2.1 Organic Solvents
2.2.2 Aluminium Sulphate
2.2.3 Carbon Black
2.2.4 Chromium Salts
2.2.5 Enzymes
2.3 Low Potential Hazard Group
2.4 Miscellaneous Hazards Group
3. HAZARDS RESULTING FROM BY-PRODUCTS OF TANNING PROCESSES
3.1 General
3.2 Effluent Outside the Tannery
3.3 Generation of Hydrogen Sulphide in Effluent Streams
4. CONTROL OF HYDROGEN SULPHIDE AS A TANNING BY-PRODUCT
4.1 Introduction
4.2 Physiological Effects
4.3 Control Measures
4.3.1 Ventilation
4.3.2 Chemical Modification
4.3.3 Comparison of Ventilation and Chemical Modification Alternatives
4.4 Control of Ammonia Emissions
BIBLIOGRAPHY
APPENDIX 1
1. Introduction
2. Suitability of Five Selected Plastics
2.1 ABS Plastics
2.2 PVC
2.3 Polyethylene
2.4 Polypropylene
2.5 Teflon
3. General
3.1 Bulk Delivery Safeguards
3.2 Further Information
TABLE
Guide to the Resistance of Selected Plastics to Corrosive Liquids
