A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Method for preparing ceramsite by recycling polluted soil and boric sludge and ceramsite
The invention relates to the field of resources and environments, and discloses a method for preparing ceramsite by recycling polluted soil and boric sludge and ceramsite. The method comprises the following steps: sequentially mixing, aging and sintering the polluted soil and boric sludge to obtain ceramsite; wherein the sintering adopts a segmented heating mode, and the segmented heating comprises a first-stage heating and a second-stage heating. By adopting the method for preparing the ceramsite, the sintering temperature can be obviously reduced under the condition that a foaming agent and a fluxing agent with relatively high purity are not additionally added, the lightweight ceramsite with relatively low density and proper strength is obtained, heavy metals in the material can be fully fixed, and leaching of the heavy metals is avoided or reduced.
本发明涉及资源与环境领域，公开了将污染土壤和硼泥资源化制陶粒的方法和陶粒。该方法包括：将污染土壤和硼泥依次进行混合、陈化和烧结，得到陶粒；其中，所述烧结采用分段升温的方式，所述分段升温包括一段升温和二段升温。采用该方法制备陶粒，能够在不额外添加纯度较高的发泡剂和助熔剂的情况下，明显降低烧结温度，并获得密度较低、强度合适的轻质陶粒，并且能够将物料中的重金属进行充分的固定，避免或减少了重金属的浸出。
Method for preparing ceramsite by recycling polluted soil and boric sludge and ceramsite
The invention relates to the field of resources and environments, and discloses a method for preparing ceramsite by recycling polluted soil and boric sludge and ceramsite. The method comprises the following steps: sequentially mixing, aging and sintering the polluted soil and boric sludge to obtain ceramsite; wherein the sintering adopts a segmented heating mode, and the segmented heating comprises a first-stage heating and a second-stage heating. By adopting the method for preparing the ceramsite, the sintering temperature can be obviously reduced under the condition that a foaming agent and a fluxing agent with relatively high purity are not additionally added, the lightweight ceramsite with relatively low density and proper strength is obtained, heavy metals in the material can be fully fixed, and leaching of the heavy metals is avoided or reduced.
本发明涉及资源与环境领域，公开了将污染土壤和硼泥资源化制陶粒的方法和陶粒。该方法包括：将污染土壤和硼泥依次进行混合、陈化和烧结，得到陶粒；其中，所述烧结采用分段升温的方式，所述分段升温包括一段升温和二段升温。采用该方法制备陶粒，能够在不额外添加纯度较高的发泡剂和助熔剂的情况下，明显降低烧结温度，并获得密度较低、强度合适的轻质陶粒，并且能够将物料中的重金属进行充分的固定，避免或减少了重金属的浸出。
Method for preparing ceramsite by recycling polluted soil and boric sludge and ceramsite
将污染土壤和硼泥资源化制备陶粒的方法和陶粒
MENG QINGQIANG (author) / LI SHAOHUA (author) / YAO YIGANG (author) / YUE YONG (author) / CHEN JUNHUA (author) / LIU JINKAI (author) / GAO YONGLI (author) / REN BEI (author) / CHANG WENJIE (author) / ZHU DEWEN (author)
2023-03-21
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
Method for preparing porous ceramsite from sludge and obtained porous ceramsite
| European Patent Office | 2022
Ceramsite cooling device for sludge ceramsite preparation
| European Patent Office | 2020
Method for preparing ceramsite and ceramsite prepared by method
| European Patent Office | 2020
Method for preparing ceramsite from chromium-contaminated soil and ceramsite
| European Patent Office | 2021
Method for preparing homogeneous porous ceramsite from sludge and homogeneous porous ceramsite
| European Patent Office | 2021