Full
Outline
The annual production volume of converter slag in China is increasing, but 45% of it is still adopted by the traditional stockpiling method, which leads to soil pollution incidents and significant environmental and economic pressures. To adress these issues, internal recycling systems in domestic steel mills, such as the intelligent slag retention closed-loop control system, the gradient oxygen-supply dephosphorization process, hot metal pretreatment, and ladle slag supplementary materials were introduced. These technologies achieved a stable recovery rate of metal iron from converter slag at 80%~83%. However, the system still faces challenges such as compositional fluctuations (ω(CaO) ranging from 32% to 49%), high processing costs (85~120 yuan/t slag), and associated quality and safety risks. Future efforts should focus on advancing precision-oriented and cost-effective approaches to support the green transformation of the steel industry.
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| 科 Family | 属数 Number of genus | 种数 Number of species | 占总种数比例 Percentage of total species (%) | 属 Genus | 种数 Number of species | 占总种数比例 Percentage of total species (%) |
|---|---|---|---|---|---|---|
| 鹅膏菌科Amanitaceae | 2 | 11 | 5.26 | 鹅膏菌属 Amanita | 10 | 4.78 |
| 小菇科 Mycenaceae | 2 | 12 | 5.74 | 丝盖伞属 Inocybe | 5 | 2.39 |
| 多孔菌科 Polyporaceae | 8 | 14 | 6.70 | 蜡蘑属 Laccaria | 5 | 2.39 |
| 红菇科 Russulaceae | 3 | 23 | 11.00 | 小皮伞属 Marasmius | 6 | 2.87 |
| 小菇属 Mycena | 11 | 5.26 | ||||
| 光柄菇属 Pluteus | 5 | 2.39 | ||||
| 红菇属 Russula | 17 | 8.13 | ||||
| 栓菌属 Trametes | 5 | 2.39 |
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