Potentiality for using paper sludge waste in the manufacture of red wall tiles

IF 0.8 Q4 ENGINEERING, ENVIRONMENTAL

Proceedings of the Institution of Civil Engineers-Waste and Resource Management Pub Date : 2022-08-19 DOI:10.1680/jwarm.21.00016

L. B. Chagas, J. Holanda

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引用次数: 1

Abstract

Paper sludge waste is produced on a large scale by the paper industry and causes high environmental impacts. This work investigates the potential of paper sludge waste incorporation as an alternative raw material into a red wall tile formulation, replacing traditional limestone material by up to 5 wt%. Red wall tile pieces containing paper sludge waste were produced by uniaxial dry pressing and fired at 1170 °C using a fast-firing cycle. Technical properties of the fired wall tile pieces have been determined. The development of the fired microstructure was determined by scanning electron microscopy (SEM). It was found a water absorption of 17.15 to 18.31 %, a lexural strength of 15.77 to 16.17 MPa, a linear shrinkage of 2.88 to 3.22 %, and an apparent density of 1.76 to 1.81 g/cm3. Therefore, the results indicated that the paper sludge waste, in the range of up to 5 wt%, can produce red wall tiles (group-BIII in the ISO 13006). At the same time, this application helps minimize the environmental impacts caused by the paper industry.

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造纸污泥废弃物在红墙砖生产中的应用潜力

造纸工业产生了大量的造纸污泥废物，对环境造成了很大的影响。这项工作研究了纸污泥废物作为替代原料掺入红墙砖配方的潜力，取代传统的石灰石材料高达5 wt%。采用单轴干压法制备纸浆废渣红墙瓦片，在1170℃下进行快烧循环烧制。测定了烧制墙砖的技术性能。通过扫描电子显微镜(SEM)观察了烧结后微观结构的发展。吸水率为17.15 ~ 18.31%，拉伸强度为15.77 ~ 16.17 MPa，线收缩率为2.88 ~ 3.22%，表观密度为1.76 ~ 1.81 g/cm3。因此，结果表明，在高达5 wt%的范围内，纸污泥废物可以生产红墙砖(ISO 13006中的biii组)。同时，该应用程序有助于减少造纸工业对环境造成的影响。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Proceedings of the Institution of Civil Engineers-Waste and Resource Management ENGINEERING, ENVIRONMENTAL-

CiteScore

1.70

自引率

14.30%

发文量

期刊介绍： Waste and Resource Management publishes original research and practice papers on all civil engineering and construction related aspects of the resource management cycle, from the minimization of waste, through the re-use and recycling, to the management and disposal of residual wastes. Associated legislation, standards, socio-economic considerations and links with sustainable consumption and production are included. The range of subjects covered encompasses, but is not restricted to, strategies for reducing construction waste through better design, improved recovery and re-use, more efficient resource management, the performance of materials recovered from wastes, and, the procurement, planning, design, construction, operation and logistics of waste and resource management facilities.