INVESTIGATING PROCESS WATER PROPERTIES FROM DIFFERENT LEATHER INDUSTRY ZONES OF TURKEY
Project no. 701 · Status: Kapanmış · 2015
Summary
All the physical and chemical processes in leather production from soaking till dyeing-fatliquoring take place in water as medium. Water is also used as carrier for the chemicals used in subsequent finishing processes. Therefore, the nature and quality of the process water used in leather industry is crucial. In leather production many kinds of chemicals are being used in processes. These chemicals are penetrated and chemically bounded to leather collagen in water medium. The pH, calcium and magnesium salts, other inorganic salts and organic matters usually affects the chemical reactions, especially in bating, pickling, tanning, dyeing and fatliquoring stages. Therefore, the determination of the properties of process water used in industry and reveal their affect in leather production is very important. In the present study process water samples were taken from leather industrial zones in Menemen, Tuzla, Uşak, Gerede, Çorlu and Bursa. Subsequently, the water parameters such as; total hardness, permanent hardness, temporary hardness, pH as well as the inorganic constituents i.e. natrium, potassium, magnesia, lead, manganese, iron, aluminum, chromium, zinc, copper and nickel were determinated by ICP-OES. In this way the properties of the process water used in different leather industrial zones were documented and their possible effects on the regional leather production processes and leather quality have been discussed.