A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Phosphogypsum modification method
The invention discloses a phosphogypsum modification method, and belongs to the technical field of phosphogypsum harmless treatment. The ardealite modification method is high in purification efficiency, phosphorus and fluorine impurities in the modified ardealite are reduced in an activation and solidification combined mode, and the index reaches the first-grade standard of second-class pollutants in the GB 8978-1996 Integrated Wastewater Discharge Standard. In addition, the ardealite modification method reduces the pressure of industrial wastewater treatment and reduces the cost of ardealite purification.
本发明公开了一种磷石膏改性方法，属于磷石膏无害化处理技术领域。所述磷石膏改性方法的净化效率高效，通过活化和固化联合的方式实现了改性磷石膏中的磷、氟杂质的降低，指标达到GB 8978‑1996《污水综合排放标准》中第二类污染物的一级标准。并且，所述磷石膏改性方法减轻了工业废水处理压力，降低了磷石膏净化的成本。
Phosphogypsum modification method
The invention discloses a phosphogypsum modification method, and belongs to the technical field of phosphogypsum harmless treatment. The ardealite modification method is high in purification efficiency, phosphorus and fluorine impurities in the modified ardealite are reduced in an activation and solidification combined mode, and the index reaches the first-grade standard of second-class pollutants in the GB 8978-1996 Integrated Wastewater Discharge Standard. In addition, the ardealite modification method reduces the pressure of industrial wastewater treatment and reduces the cost of ardealite purification.
本发明公开了一种磷石膏改性方法，属于磷石膏无害化处理技术领域。所述磷石膏改性方法的净化效率高效，通过活化和固化联合的方式实现了改性磷石膏中的磷、氟杂质的降低，指标达到GB 8978‑1996《污水综合排放标准》中第二类污染物的一级标准。并且，所述磷石膏改性方法减轻了工业废水处理压力，降低了磷石膏净化的成本。
Phosphogypsum modification method
一种磷石膏改性方法
ZHANG TAO (author) / XUE SHAOXIU (author) / TANG GUANGYU (author) / YAN BO (author) / ZHANG ZHERUI (author) / YANG SHANGSONG (author) / YAN PENG (author)
2024-09-10
Patent
Electronic Resource
Chinese
| European Patent Office | 2022
| European Patent Office | 2020
Phosphogypsum production method and calcination-free phosphogypsum
| European Patent Office | 2021
Phosphogypsum immersion cleaning agent and phosphogypsum harmless treatment method
| European Patent Office | 2023