Environmental pollution is a major concern for leather industry. During leather processing, a large amount of waste is generated and their disposal into water bodies without proper treatment has a detrimental effects on environment. Tannery effluent is composed of several kinds of liquid waste: soak, lime, delime & bate, pickle & chrome. Deliming is one of the important steps in leather processing which is mainly based on ammonium salts. In conventional deliming process, a significant amount of ammonia is released which leads to further demand for critical wastewater treatment. Ammonia gas is highly soluble in water and responsible to create adverse environment for aquatic life. In this research work some weak organic acids like tartaric acid, propanoic acid, lactic acid, salicylic acid and para-hydroxy benzoic acid were used as deliming agent to decrease the pH of the reaction mixture as well as to reduce pollution load in tannery waste water. Deliming efficiency of used weak acids, physico-chemical properties of tannery effluent and physical properties of leather such as tensile strength, tear strength, lastometer test, water vapor permeability, flexing endurance and color fastness were comparable with the conventional delimed leather. The experimental results showed that the significant amount of pollution load as well as the costing of finished leather processed by developed deliming agent was significantly reduced although the quality of leather remain similar or better than conventional method.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.
hi@scite.ai
10624 S. Eastern Ave., Ste. A-614
Henderson, NV 89052, USA
Copyright © 2024 scite LLC. All rights reserved.
Made with 💙 for researchers
Part of the Research Solutions Family.