制革污泥的封装主导型处置方法建议--一种循环方法

S. J, V. P., Pulijala Bhavani, Ravindran T, Venkata Siva Sai G.C
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引用次数: 0

摘要

在实现可持续发展目标的背景下,不断推动可能的扩展研究并尝试将各自的成果应用于扩大各种产品的循环经济是当务之急。在本文中,我们将一次性制革污泥视为一个值得关注的问题,并提出了一个创新框架,通过基于封装技术的建筑产品开发,将制革污泥置于经济价值链中。我们使用聚丙烯塑料和水泥-水基质作为封装材料,对封装后的制革污泥体进行了跌落强度、吸水性、铬浸出能力和点火失重倾向测试。制备的双层封装制革污泥体的吸水率为 1.332%,落下强度性能指数为 90%,在毒性特征浸出程序(TCLP)中发现铬浸出率为 0.0001 µg/g,在热重分析(TGA)中显示失重率为 67%。这些结果证实了生态兼容处理和再循环制革污泥的可能性,从而可持续地生产封装体形式的建筑砌块。我们的工作成果为现有文献提供了一个新的视角,即在生产建筑砌块过程中对制革污泥进行环境积极利用。
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Proposal of an Encapsulation-led Disposal Method for Tannery Sludge – A Circularity Approach
In the context of achieving sustainable development goals, continuously pushing possible extended research and attempting to implement the respective outcomes in expanding a circular economy for a broad range of products are high priorities. In this paper, we considered disposable tannery sludge as a matter of concern and proposed an innovative framework for placing tannery sludge in the economic value chain via an encapsulation technique-based construction product development. We used polypropylene plastic and a cement-water matrix as encapsulation materials, and the encapsulated tannery sludge bodies were tested for their drop strength, water absorbing behaviour, ability to leach chromium and tendency to lose weight upon ignition. Value of water absorption for the prepared double layered encapsulated tannery sludge bodies was 1.332%, the drop strength performance index arrived was 90% and 0.0001 µg/g of Chromium leaching was found in Toxicity Characteristic Leaching Procedure (TCLP) and shown 67% weight loss in thermogravimetric (TGA) analysis. The results confirmed the possibility of ecocompatible disposal and recirculation of tannery sludge for the sustainable production of building blocks in the form of encapsulated bodies. The outcomes of our work add upon a new perspective to the existing literature regarding the environmentally positive utilization of tannery sludge in the production of building blocks.
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