EXPERIMENTAL STUDY ON MUNICIPAL SOLID WASTE INCINERATION FLY ASH IN CONJUNCTION WITH CONSTRUCTION WASTE TO BURN CERAMICS

ZHU Yixin; YE Zhen; REN Lingwei; ZHONG Yuchi; ZHOU Wenjun

doi:10.13205/j.hjgc.202312025

Volume 41 Issue 12

Dec. 2023

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ZHU Yixin, YE Zhen, REN Lingwei, ZHONG Yuchi, ZHOU Wenjun. EXPERIMENTAL STUDY ON MUNICIPAL SOLID WASTE INCINERATION FLY ASH IN CONJUNCTION WITH CONSTRUCTION WASTE TO BURN CERAMICS[J]. ENVIRONMENTAL ENGINEERING , 2023, 41(12): 206-212,130. doi: 10.13205/j.hjgc.202312025

Citation:

ZHU Yixin, YE Zhen, REN Lingwei, ZHONG Yuchi, ZHOU Wenjun. EXPERIMENTAL STUDY ON MUNICIPAL SOLID WASTE INCINERATION FLY ASH IN CONJUNCTION WITH CONSTRUCTION WASTE TO BURN CERAMICS[J]. ENVIRONMENTAL ENGINEERING , 2023, 41(12): 206-212,130. doi: 10.13205/j.hjgc.202312025

Citation:

ZHU Yixin, YE Zhen, REN Lingwei, ZHONG Yuchi, ZHOU Wenjun. EXPERIMENTAL STUDY ON MUNICIPAL SOLID WASTE INCINERATION FLY ASH IN CONJUNCTION WITH CONSTRUCTION WASTE TO BURN CERAMICS[J]. ENVIRONMENTAL ENGINEERING , 2023, 41(12): 206-212,130. doi: 10.13205/j.hjgc.202312025

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EXPERIMENTAL STUDY ON MUNICIPAL SOLID WASTE INCINERATION FLY ASH IN CONJUNCTION WITH CONSTRUCTION WASTE TO BURN CERAMICS

doi: 10.13205/j.hjgc.202312025

1. School of Environment and Resources, Zhejiang University, Hangzhou 310058, China;
2. Hangzhou Huihong Environmental Protection Technology Co., Ltd., Hangzhou 310012, China

Received Date: 2022-10-28
Available Online: 2024-03-08

Abstract

Abstract

In this paper, municipal solid waste incineration (MSWI) fly ash was pre-treated with acid pickling to remove most chloride, and then burned ceramics in conjunction with construction waste. The effects of dechlorinated fly ash doping ratios and sintering temperatures on the morphology and mechanical properties of ceramics were investigated. The doping ratios of the dechlorinated fly ash brought about the content differences of SiO₂, Al₂O₃ and CaO in the mixture. The sintering temperatures mainly affected the pore structure and crystalline phase of ceramics. The results showed that at the dechlorinated fly ash doping of 20% and the sintering temperature of 1150 ℃, the ceramics had the optimal performance: the compressive strength was 7.94 MPa, the particle density was 1245.50 kg/m³, 1 hour water absorption rate was 7.92%. After pretreatment and sintering, compared to the mixture, the leaching rate of heavy metal in the ceramics was reduced by more than 62.50%, and the toxic equivalent concentration of dioxin was reduced by 90.15%. The study provided a reference for the harmless resource treatment of fly ash and construction waste.
- municipal solid waste incineration fly ash,
- construction waste,
- ceramics,
- solid waste recycling

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References(41)

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