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An effective treatment method for phosphogypsum

  • Dong-sheng Liu
  • Chao-qiang WangEmail author
  • Xu-dong Mei
  • Chun Zhang
Short Research and Discussion Article

Abstract

Phosphogypsum (PG) accumulation occupies huge amounts of land resources and results in serious environmental risks. A new recycling product, the phosphogypsum embedded filler (PGEF) made with calcination-modified phosphogypsum, was developed. The preparation process, hydration mechanism of PG, basic physical performances, environmental safety, engineering application, and cost analysis of the PGEF were studied. The results showed that the stress performance and thermal insulation property of the products were satisfied. Environmental performance tests established their findings that the application of PGEF prepared with calcination-modified PG does not cause any secondary contamination. In addition, the cost of PGEF is far lesser than that of the same volume of reinforced concrete. PGEF prepared with calcination-modified PG has shown a perfect application in cast-in situ concrete hollow floor structure.

Key words

Phosphogypsum Large-scale Utilization Environmental 

Notes

Funding information

This work was financially supported by Chunhui Project of the Ministry of Education in China (Z2015130) and Technology program of Chongqing education committee (KJQN201801438)

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Copyright information

© Springer-Verlag GmbH Germany, part of Springer Nature 2019

Authors and Affiliations

  • Dong-sheng Liu
    • 1
  • Chao-qiang Wang
    • 2
    • 3
    Email author
  • Xu-dong Mei
    • 2
  • Chun Zhang
    • 2
  1. 1.Green Intelligence Environment SchoolYangtze Normal UniversityChongqingChina
  2. 2.Chongqing Environmental Protection Center for Shale Gas Technology & DevelopmentChongqingChina
  3. 3.Chongqing River State Building Materials Co., Ltd.ChongqingChina

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