CAJ | 학술논문

赤泥是氧化铝生产中排放的工业废渣，含有大量碱和金属氧化物，不妥当处置不仅占用土地，还会造成土壤和地下水污染。赤泥中的碱和金属可以回收利用，如铁、钠、铝、钪、钛等；用赤泥可以生产水泥、建筑用砖，也可以制作无机混凝剂或多孔陶粒用于水处理。但是，除了生产水泥以外，多数回收方法仍然处于实验室试验阶段，且回收成本较高。由于赤泥排放景大，内含多种可回收利用的物质，今后应加强赤泥回收利用技术研究。
적니시양화려생산중배방적공업폐사，함유대량감화금속양화물，불타당처치불부점용토지，환회조성토양화지하수오염。적니중적감화금속가이회수이용，여철、납、려、항、태등；용적니가이생산수니、건축용전，야가이제작무궤혼응제혹다공도립용우수처리。단시，제료생산수니이외，다수회수방법잉연처우실험실시험계단，차회수성본교고。유우적니배방경대，내함다충가회수이용적물질，금후응가강적니회수이용기술연구。
Red mud is an industrial waste residue in alumina production. Red mud contains amounts of alkali and metal oxide, improper disposal not only take the land, but also pollute land and underground headwaters. The alkali and metal in the red mud can be recycled, such as iron, sodium, aluminum, scandium, titanium, etc. Red mud can be used to produce cement, constructional brick; can also produce inorganic coagulant and porous ceramist used for water treatment. Whereas, except for producing cement, majority methods for recycled arc in laboratory experiment phase, and the cost of recycled is high. Due to the emission of red mud is large, and much substance can be recycled is in it. we could rcmforce the recycled technique research of red mud.