Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Curing agent and preparation method thereof
The invention provides a curing agent and a preparation method thereof. The curing agent is prepared from the following components in parts by weight: 0.4-0.6 parts of construction waste, 0.04-0.09 parts of slag cement, 0.01-0.04 parts of steel slag cement, 0.4-0.5 parts of aggregate and 0.3-0.35 parts of an alkali activator. The curing agent is powdery. The curing agent disclosed by the invention has the beneficial effects that the alkali activator is adopted to treat enriched heavy metals in the landfill leachate concentrated solution, the slag cement and the steel slag cement are utilized to perform hydration reaction, the construction wastes and the aggregate are also used, wastes are treated with wastes, the use amount of high-energy-consumption and high-pollution cement is reduced, a high-strength physical barrier capable of adsorbing pollutants is formed, and the overall particle size of the curing agent is controlled to be 125-150 [mu]m so as to form a low-sheet and high-water-absorption aggregate, such that the problems of high water content of concentrate and large mass of sludge are well solved, a high-strength cured body is formed, water secreting and layering cannot occur during curing, and the heavy metal pollutants can be sealed in the high-strength barrier.
本发明提供一种固化剂及制备方法，包括下列重量份数的组分：建筑垃圾：0.4份～0.6份、矿渣水泥：0.04份～0.09份、钢渣水泥：0.01份～0.04份、骨料：0.4份～0.5份及碱性激发剂：0.3份～0.35份；固化剂为粉末状。本发明的有益效果在于：本发明固化剂采用碱性激发剂处理垃圾渗滤液浓缩液中的富集重金属，利用矿渣水泥、钢渣水泥进行水化反应，配合建筑垃圾以及骨料，以废制废，减少了高耗能高污染水泥的使用量，使其形成可吸附污染物高强度物理屏障，控制固化剂整体的粒径为125～150μm，使其形成低片状和高吸水的团聚体，较好解决浓缩液高含水率和污泥体量大的问题，形成了强度高的固化体，固化时不会泌水分层，使重金属污染物封存高强度屏障中。
Curing agent and preparation method thereof
The invention provides a curing agent and a preparation method thereof. The curing agent is prepared from the following components in parts by weight: 0.4-0.6 parts of construction waste, 0.04-0.09 parts of slag cement, 0.01-0.04 parts of steel slag cement, 0.4-0.5 parts of aggregate and 0.3-0.35 parts of an alkali activator. The curing agent is powdery. The curing agent disclosed by the invention has the beneficial effects that the alkali activator is adopted to treat enriched heavy metals in the landfill leachate concentrated solution, the slag cement and the steel slag cement are utilized to perform hydration reaction, the construction wastes and the aggregate are also used, wastes are treated with wastes, the use amount of high-energy-consumption and high-pollution cement is reduced, a high-strength physical barrier capable of adsorbing pollutants is formed, and the overall particle size of the curing agent is controlled to be 125-150 [mu]m so as to form a low-sheet and high-water-absorption aggregate, such that the problems of high water content of concentrate and large mass of sludge are well solved, a high-strength cured body is formed, water secreting and layering cannot occur during curing, and the heavy metal pollutants can be sealed in the high-strength barrier.
本发明提供一种固化剂及制备方法，包括下列重量份数的组分：建筑垃圾：0.4份～0.6份、矿渣水泥：0.04份～0.09份、钢渣水泥：0.01份～0.04份、骨料：0.4份～0.5份及碱性激发剂：0.3份～0.35份；固化剂为粉末状。本发明的有益效果在于：本发明固化剂采用碱性激发剂处理垃圾渗滤液浓缩液中的富集重金属，利用矿渣水泥、钢渣水泥进行水化反应，配合建筑垃圾以及骨料，以废制废，减少了高耗能高污染水泥的使用量，使其形成可吸附污染物高强度物理屏障，控制固化剂整体的粒径为125～150μm，使其形成低片状和高吸水的团聚体，较好解决浓缩液高含水率和污泥体量大的问题，形成了强度高的固化体，固化时不会泌水分层，使重金属污染物封存高强度屏障中。
Curing agent and preparation method thereof
一种固化剂及制备方法
ZHU SHUJING (Autor:in) / HE YUN (Autor:in) / FU YISHUN (Autor:in) / LI ZHUOWEN (Autor:in) / SUN YANHAN (Autor:in) / TAN LIN (Autor:in) / ZHU QIANQIAN (Autor:in)
10.09.2021
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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