| 页岩-煤矸石烧红砖法治理铬渣除毒效果研究 |
| 摘要点击 775 全文点击 2053 投稿时间：1997-03-23 |
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| 中文关键词 铬渣 制砖 红砖法 页岩 煤矸石 |
| 英文关键词 chromate sludge brick manufacture red brick method shale rock clunch detoxication |
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| 中文摘要 |
| 以页岩、煤矸石为主原料烧制的铬渣砖,在铬渣掺量达20%,煤矸石掺量10%时,铬渣砖整砖检测表明,解毒彻底,除毒效果稳定;表面(1mm)层检测表明,水溶性Cr6+浸出浓度为1.16mg·L-1,经长达5a大气、日晒条件下的跟踪检测,仍能达到GB5086-85标准。其除毒效果主要受着窑温、体系酸碱性、含煤量及助剂的影响。 |
| 英文摘要 |
| The chromate sludge brick was made using shale rock,chromate sludge and clunch as main materials. When directions for producing materials are 20% of chromate sludge and 10% of clunch.The determination of whole brick powder showed that detoxication of Cr(Ⅵ)is thorough and stable;and determina tion of brick surface layer powter showed that the leaching concentration of water soluble Cr(Ⅵ)is 1.16mg/L. through five years following trail of tests under the free air and sun conditions Cr(Ⅵ)concentration can still achieve the standard of GB5086-85.The detoxication effect is mainly influenced by kiln temperature, acid-alkali property of the system, coal content and auxiliary. |
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