Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Curing agent for curing landfill leachate membrane concentrated liquor and evaporation mother liquor
The invention discloses a curing agent for curing landfill leachate membrane concentrated liquor and evaporation mother liquor. The curing agent is suitable for curing treatment of landfill leachate (hereinafter referred to as membrane concentrated liquor) subjected to membrane treatment and mother liquor (hereinafter referred to as evaporation mother liquor) formed after evaporation of the membrane concentrated liquor. The curing agent is prepared by uniformly mixing a cementing material composed of a mineral admixture and ordinary Portland cement as a main raw material with an alkaline excitation component, a water absorption thickening component and an expansion component, wherein the contents of the components are as follows: 0.35-0.50 parts of mineral admixture, 0.10-0.25 parts of ordinary Portland cement, 0.05-0.15 parts of alkaline excitation component, 0.10-0.15 parts of water absorption thickening component and 0-0.1 parts of expansion component. The curing agent solves the problems of serious slurry bleeding, low cured body strength and later-stage expansion cracking when ordinary Portland cement is used for curing high-water-content, high-organic-matter and high-salt-content membrane concentrated liquor and evaporation mother liquor, and meets the limit value requirement of pollutant mass concentration when a cured sample enters a household garbage landfill to be buried.
本发明公开了一种用于固化垃圾渗滤液膜浓缩液及蒸发母液的固化剂，适用于经膜处理后的垃圾渗滤液(下称膜浓缩液)及膜浓缩液蒸发后形成的母液(下称蒸发母液)的固化处理。该固化剂以矿物掺合料和普通硅酸盐水泥组成的胶凝材料为主体原料，配以碱性激发组分、吸水增稠组分、膨胀组分均匀混合而成，其组分为：矿物掺合料0.35～0.50份，普通硅酸盐水泥0.10～0.25份，碱性激发组分0.05～0.15份，吸水增稠组分0.10～0.15份，膨胀组分0～0.1份。该固化剂解决了普通硅酸盐水泥在固化高含水率、高有机质、高含盐量膜浓缩液及蒸发母液时出现的浆体泌水严重、固化体强度低且后期膨胀开裂的问题，满足固化试样进入生活垃圾填埋场填埋对污染物质量浓度的限值要求。
Curing agent for curing landfill leachate membrane concentrated liquor and evaporation mother liquor
The invention discloses a curing agent for curing landfill leachate membrane concentrated liquor and evaporation mother liquor. The curing agent is suitable for curing treatment of landfill leachate (hereinafter referred to as membrane concentrated liquor) subjected to membrane treatment and mother liquor (hereinafter referred to as evaporation mother liquor) formed after evaporation of the membrane concentrated liquor. The curing agent is prepared by uniformly mixing a cementing material composed of a mineral admixture and ordinary Portland cement as a main raw material with an alkaline excitation component, a water absorption thickening component and an expansion component, wherein the contents of the components are as follows: 0.35-0.50 parts of mineral admixture, 0.10-0.25 parts of ordinary Portland cement, 0.05-0.15 parts of alkaline excitation component, 0.10-0.15 parts of water absorption thickening component and 0-0.1 parts of expansion component. The curing agent solves the problems of serious slurry bleeding, low cured body strength and later-stage expansion cracking when ordinary Portland cement is used for curing high-water-content, high-organic-matter and high-salt-content membrane concentrated liquor and evaporation mother liquor, and meets the limit value requirement of pollutant mass concentration when a cured sample enters a household garbage landfill to be buried.
本发明公开了一种用于固化垃圾渗滤液膜浓缩液及蒸发母液的固化剂，适用于经膜处理后的垃圾渗滤液(下称膜浓缩液)及膜浓缩液蒸发后形成的母液(下称蒸发母液)的固化处理。该固化剂以矿物掺合料和普通硅酸盐水泥组成的胶凝材料为主体原料，配以碱性激发组分、吸水增稠组分、膨胀组分均匀混合而成，其组分为：矿物掺合料0.35～0.50份，普通硅酸盐水泥0.10～0.25份，碱性激发组分0.05～0.15份，吸水增稠组分0.10～0.15份，膨胀组分0～0.1份。该固化剂解决了普通硅酸盐水泥在固化高含水率、高有机质、高含盐量膜浓缩液及蒸发母液时出现的浆体泌水严重、固化体强度低且后期膨胀开裂的问题，满足固化试样进入生活垃圾填埋场填埋对污染物质量浓度的限值要求。
Curing agent for curing landfill leachate membrane concentrated liquor and evaporation mother liquor
一种用于固化垃圾渗滤液膜浓缩液及蒸发母液的固化剂
XIE WEIXUAN (Autor:in) / WANG SHUDONG (Autor:in) / HU GENFU (Autor:in) / ZHAO YONG (Autor:in) / WEN LIANHE (Autor:in) / ZENG ZHIQUN (Autor:in)
23.10.2020
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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