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通过分析钢渣的比表面积、孔隙率和相对密度等技术指标,利用其易沉淀分离,且吸附性能强的特性,将其应用于净化水生态池。规划出了溢流式净化仓、生化过滤仓、高林式钢渣滴流净化塔等生态净化池的布置,设计了上述不同净化单元所用净化介质钢渣的材料参数及其过滤工艺流程,分析了设计及过滤原理。结果显示,经钢渣净化后的水质常年无色透明,没有悬浊物,能见度达到2 m以上;水温不高于近十年当月平均水温2 K;溶解氧(DO)达到5~7mg/L;水的硬度(KH)基本保持在7左右;酸碱度(pH)为7.0~7.8之间;氨、氮、亚硝酸盐<0.1 mg/L;硝酸盐<30 mg/L。该技术降低了水净化处理的成本,可避免钢渣闲置所造成的二次污染,促进了宝钢钢渣的综合利用价值和拓宽其应用领域。
By analyzing the specific surface area, porosity and relative density of steel slag and other technical indicators, the use of its easy precipitation separation, and adsorption properties of strong, its application to the purified water ecological pond. The layout of ecological purification ponds such as overflow purification bin, biochemical filtration bin and Gaolin-style steel slag trickle-flow purification tower is designed. The material parameters of the cleaning media used for the above-mentioned different purification units and the filtration technological process are designed. The design and Filter principle. The results showed that the water purified by the steel slag was colorless and transparent all year round with no suspended matter and the visibility was above 2 m. The water temperature was not higher than 2 K in the same month in recent ten years. The dissolved oxygen (DO) reached 5 ~ 7 mg / L. Water hardness (KH) remained at about 7; pH (pH) between 7.0 to 7.8; ammonia, nitrogen, nitrite <0.1 mg / L; nitrate <30 mg / L. This technology reduces the cost of water purification treatment, avoids the secondary pollution caused by idle steel slag, promotes the comprehensive utilization value of Baosteel steel slag and broadens its application field.