Preparation of lightweight ceramsite from remediated soil, waste glass and ceramics

Author:

Lao Youliang12ORCID,An Shujun3,Liang Yi2,Yang Mengdi12ORCID,Zhang Tao12,Chen Shanshan4

Affiliation:

1. Guang Xi Key Laboratory of New Energy and Building Energy Saving, No. 12 Jian Gan Road, Guilin 541004,Guangxi, China

2. College of Civil Engineering and Architecture, Guilin University of Technology , No. 12 Jian Gan Road, Guilin 541004, Guangxi, China

3. Thei University Technological and Higher Education Institute of Hong Kong, China,133 Shing Tai Road, Chai Wan, Hong Kong 999077

4. School of Environment, Tsinghua University , No. 30 Shuangqing Road, Hai Dian Distract, Beijing100084, China

Abstract

Abstract Lightweight ceramsite is the core material for building to achieve energy-saving and low-carbon operation. The disposal of remediated soil by Cr (VI)-contaminated waste glass and ceramics after remediation has always been a major problem in the environmental field. Herein, it analyzed the composition and sintering process of the above three solid wastes, after studying the component preparation and firing process, lightweight ceramsites with bulk density and grain density of 626.79 kg/m3 and 1142.56 kg/m3, respectively, were successfully prepared, and the leaching concentration of Cr (VI) was controlled at a low concentration level below 0.06 mg/L. Compared with the conventional ceramsite preparation technology, the method of firing ceramsite by the remediated soil, waste glass and ceramics can effect eliminate the environmental risk of solid waste and effectively reduce the consumption of clay and other resources, which has the technical advantages of safety, reliability, green and low carbon.

Publisher

Oxford University Press (OUP)

Subject

General Environmental Science,Architecture,Civil and Structural Engineering

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