WO2021093168A1 - 一种基于工业尾气-污水处理-绿色高性能土木功能材料协同处置的赤泥利用方法 - Google Patents
一种基于工业尾气-污水处理-绿色高性能土木功能材料协同处置的赤泥利用方法 Download PDFInfo
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Abstract
Description
Claims (10)
- 一种赤泥基绿色高性能土木功能胶凝材料,其特征在于,由如下重量份的原料组成:赤泥处理污水后的残渣10-90份、胶结剂20-60份、激发剂2-8份、毒性元素固化剂1-5份;其中,赤泥处理污水后的残渣的制备方法为:将赤泥经工业尾气碳化后,制备成污水处理剂,处理污水后,收集赤泥处理污水后的残渣,即得。
- 权利要求1所述的赤泥基绿色高性能土木功能胶凝材料,其特征在于,所述碳化处理中,压力为0.4-1.5MPa,碳化温度为60-200℃,碳化时间为6-24小时,工业尾气为电厂尾气、钢铁行业尾气、建材工业尾气中的一种。
- 权利要求1所述的赤泥基绿色高性能土木功能胶凝材料,其特征在于,所述赤泥基污水处理剂由如下重量份的原料组成:碳化赤泥60-100份,增强剂0-20份,表明活性剂3-5份;优选的,增强剂为粉煤灰、矿粉、煤矸石、硅酸盐水泥等中的一种或几种。
- 如权利要求1所述的赤泥基绿色高性能土木功能胶凝材料,其特征在于,由如下重量份的原料组成:赤泥处理污水后的残渣10-50份、胶结剂20-40份、激发剂2-5份、毒性元素固化剂1-3份;或由如下重量份的原料组成:赤泥处理污水后的残渣50-90份、胶结剂40-60份、激发剂5-8份、毒性元素固化剂3-5份。
- 如权利要求1所述的赤泥基绿色高性能土木功能胶凝材料,其特征在于,所述用于处理污水的赤泥的制备方法为酸化、热处理赤泥以及使用改性剂改性后的赤泥。
- 如权利要求1-4任一项所述的赤泥基绿色高性能土木功能胶凝材料,其特征在于,所述的胶结剂为硅酸盐水泥、硫铝酸盐水泥、铁铝酸盐水泥、磷酸镁水泥、铝酸盐水泥中的一种或几种;或所述的激发剂为氢氧化物、硅酸盐、硫酸盐、碳酸盐、磷酸盐中的一种或几种。
- 如权利要求1-4任一项所述的赤泥基绿色高性能土木功能胶凝材料,其特征在于,所述的毒性元素固化剂为金属有机骨架材料、膨润土、粉煤灰、水滑石、氨基羧酸或多胺类螯合剂。
- 一种基于工业尾气-污水处理-绿色高性能土木功能材料协同处置的赤泥利用方法,其特征在于,包括:将赤泥经工业尾气碳化后,制备成污水处理剂,处理污水后,收集赤泥处理污水后的残渣;将赤泥处理污水后的残渣与其他固废混合均匀,煅烧、粉磨,即得高性能胶凝材料。
- 如权利要求8所述的基于工业尾气-污水处理-绿色高性能土木功能材料协同处置的赤泥利用方法,其特征在于,所述混合方法为湿法混合;或所述煅烧条件为升温至1350~1400℃,保温2.5~3小时、冷却;或所述粉磨至比表面积为300~320m 2/kg。
- 如权利要求1-7任一项所述的赤泥基绿色高性能土木功能胶凝材料在道路、桥梁、地下工程或建筑物建造中的应用。
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US17/283,333 US20220306536A1 (en) | 2019-11-14 | 2020-01-17 | Red mud utilization method based on co-processing of industrial exhaust gas, sewage treatment and environment-friendly and high performance civil functional material |
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CN201911115184.5 | 2019-11-14 | ||
CN201911115184.5A CN110759680B (zh) | 2019-11-14 | 2019-11-14 | 一种基于工业尾气-污水处理-绿色高性能土木功能材料协同处置的赤泥利用方法 |
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Cited By (1)
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CN115974433A (zh) * | 2023-01-31 | 2023-04-18 | 上海百奥恒新材料有限公司 | 一种赤泥基胶凝材料及其制备方法和应用 |
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CN111217562A (zh) * | 2020-02-28 | 2020-06-02 | 山东大学 | 赤泥基污水处理剂及其制备方法、赤泥基陶粒混凝土及其制备方法与应用 |
CN113929394B (zh) * | 2021-10-28 | 2022-11-08 | 山东汉博昱洲新材料有限公司 | 一种赤泥基碳化砖及其制备方法 |
CN114230244A (zh) * | 2021-12-13 | 2022-03-25 | 中南大学 | 一种赤泥合成碳钠铝石协同固化碳和钠的方法 |
CN114315292B (zh) * | 2021-12-24 | 2022-11-04 | 湖南金业环保科技有限公司 | 一种工业固体废弃物冶炼废渣的固化处理工艺 |
CN114907029B (zh) * | 2022-05-31 | 2023-03-28 | 武汉理工大学 | 一种利用高铁粒状渣熔结固废制备生态辅助胶凝材料的方法 |
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