机构地区: 华南理工大学材料科学与工程学院
出 处: 《轻合金加工技术》 2009年第11期24-26,共3页
摘 要: 利用亚硫酸钙型脱硫灰处理铝材生产中的铬化废水,以废治废,可同时脱除废水中的六价铬和氟离子,六价铬浓度可降至0.06 mg/L以下,氟离子浓度降至10 mg/L。相关工艺控制条件为:铬化废水pH在2.0~3.0之间,中和pH值7.5~8.5,脱硫灰用量(质量分数)3.0‰~4.0‰,反应时间10 min^15 min。 Using calcium sulfite typed flue gas desulfurization residue to treat chromizing wastewater from aluminium profile production was studied in this paper,Cr6+ and F-were removed together.Optimization for process conditions of aluminium profile chromizing wastewater treatment were followed by wastewater pH value of 2-3,neutralization process pH value of 7.5-8.5,dosage of desulfurization residue of 3.0‰-4.0‰ and reacted time of 10 min15 min.
领 域: [环境科学与工程]