Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Method for preparing roadbed material by doping biochar into mercury-containing sludge-red mud
The invention discloses a method for preparing a roadbed material by doping biochar into mercury-containing sludge-red mud, which comprises the following steps: soaking biochar obtained by pyrolyzing tobacco wastes in water, respectively drying, grinding and sieving mercury-containing sludge and red mud to obtain mercury-containing sludge particles and red mud particles; stirring and mixing the soaked biochar, mercury-containing sludge particles, red mud particles and an activating agent to obtain a roadbed material; the biochar adsorbs mercury in sludge by taking oxyacid functional groups such as hydroxyl, carboxyl and amide on the surface of the biochar as adsorption sites, and SiO2, Al2O3 and CaO in the red mud can promote hydration reaction and enhance the strength of the roadbed material; the biochar, the mercury-containing sludge and the red mud are converted into the roadbed material with good durability and mechanical property, consumption and resource utilization of bulk solid waste of the mercury-containing sludge and the red mud are achieved, the cost is low, operation is easy, the road traffic requirement can be met, and the purposes of pollution reduction, carbon reduction and synergistic interaction are achieved; and good economic benefits, social benefits and environmental benefits are generated.
本发明公开一种生物炭掺入含汞污泥‑赤泥制备路基材料的方法，将烟草废物热解得到的生物炭在水中进行浸泡，含汞污泥、赤泥分别烘干研磨过筛得到含汞污泥颗粒和赤泥颗粒，将浸泡后的生物炭、含汞污泥颗粒、赤泥颗粒和活化剂搅拌混合，得到路基材料；本发明生物炭通过表面的羟基、羧基和酰胺等含氧酸官能团为吸附位点吸附污泥中的汞，赤泥中的SiO2、Al2O3和CaO则能够促进水化反应，增强路基材料强度；本发明将生物炭、含汞污泥、赤泥转化为具有良好耐久性和力学性能的路基材料，实现含汞污泥、赤泥大宗固废的消纳和资源化利用，成本低，操作简单，可满足道路交通要求，达到减污降碳协同增效的目标，产生较好的经济效益、社会效益和环境效益。
Method for preparing roadbed material by doping biochar into mercury-containing sludge-red mud
The invention discloses a method for preparing a roadbed material by doping biochar into mercury-containing sludge-red mud, which comprises the following steps: soaking biochar obtained by pyrolyzing tobacco wastes in water, respectively drying, grinding and sieving mercury-containing sludge and red mud to obtain mercury-containing sludge particles and red mud particles; stirring and mixing the soaked biochar, mercury-containing sludge particles, red mud particles and an activating agent to obtain a roadbed material; the biochar adsorbs mercury in sludge by taking oxyacid functional groups such as hydroxyl, carboxyl and amide on the surface of the biochar as adsorption sites, and SiO2, Al2O3 and CaO in the red mud can promote hydration reaction and enhance the strength of the roadbed material; the biochar, the mercury-containing sludge and the red mud are converted into the roadbed material with good durability and mechanical property, consumption and resource utilization of bulk solid waste of the mercury-containing sludge and the red mud are achieved, the cost is low, operation is easy, the road traffic requirement can be met, and the purposes of pollution reduction, carbon reduction and synergistic interaction are achieved; and good economic benefits, social benefits and environmental benefits are generated.
本发明公开一种生物炭掺入含汞污泥‑赤泥制备路基材料的方法，将烟草废物热解得到的生物炭在水中进行浸泡，含汞污泥、赤泥分别烘干研磨过筛得到含汞污泥颗粒和赤泥颗粒，将浸泡后的生物炭、含汞污泥颗粒、赤泥颗粒和活化剂搅拌混合，得到路基材料；本发明生物炭通过表面的羟基、羧基和酰胺等含氧酸官能团为吸附位点吸附污泥中的汞，赤泥中的SiO2、Al2O3和CaO则能够促进水化反应，增强路基材料强度；本发明将生物炭、含汞污泥、赤泥转化为具有良好耐久性和力学性能的路基材料，实现含汞污泥、赤泥大宗固废的消纳和资源化利用，成本低，操作简单，可满足道路交通要求，达到减污降碳协同增效的目标，产生较好的经济效益、社会效益和环境效益。
Method for preparing roadbed material by doping biochar into mercury-containing sludge-red mud
一种生物炭掺入含汞污泥-赤泥制备路基材料的方法
LI BIN (Autor:in) / YANG YANYU (Autor:in) / LIU ZEWEI (Autor:in) / CHEN LING (Autor:in)
13.08.2024
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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