A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Cement solidified waste and toxic chromium slag processing method thereof
The invention relates to a cement solidified waste. The cement solidified waste comprises 13-27% of converter slag, 8-12% of desulphurization ash, 25-32% of chromium slag, 5-15% of fly ash, 4-8% of cement, 4.5-6.5% of emulsified bitumen, 1-2% of fibers, and the balance of water. The converter slag and the chromium slag are mixed and are ground to 40-100 meshes, all raw materials are mixed and stirred until uniformity, the obtained mixture is put in a die, and is solified to form a mold, and the die is removed 24-36h later. The Cr<6+> leaching concentration is greatly reduced, and it is guaranteed that the concentration of Cr<6+> in a leaching concentration is lower than the concentration standard of national standard GB5085.3 danger waste upper limit.
Cement solidified waste and toxic chromium slag processing method thereof
The invention relates to a cement solidified waste. The cement solidified waste comprises 13-27% of converter slag, 8-12% of desulphurization ash, 25-32% of chromium slag, 5-15% of fly ash, 4-8% of cement, 4.5-6.5% of emulsified bitumen, 1-2% of fibers, and the balance of water. The converter slag and the chromium slag are mixed and are ground to 40-100 meshes, all raw materials are mixed and stirred until uniformity, the obtained mixture is put in a die, and is solified to form a mold, and the die is removed 24-36h later. The Cr<6+> leaching concentration is greatly reduced, and it is guaranteed that the concentration of Cr<6+> in a leaching concentration is lower than the concentration standard of national standard GB5085.3 danger waste upper limit.
Cement solidified waste and toxic chromium slag processing method thereof
CHEN PENG (author) / HU SHAOWEI (author) / MA GUANGYU (author) / WANG YONG (author) / WANG FEI (author) / LIU FANG (author) / YANG DAZHENG (author) / XU WEI (author)
2016-02-10
Patent
Electronic Resource
English
IPC:
C04B
Kalk
,
LIME
Method for improving cement solidified chromium slag and product thereof
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