Solidification/Adsorption of Heavy Metals by FA/FA-MSWI based Al-Substituted Tobermorite  

作　　者：GUO Xiaolu LI Daixin 郭晓潞;LI Daixin(Key Laboratory of Advanced Civil Engineering Materials of the Ministry of Education,Tongji University,Shanghai 201804,China;School of Materials Science and Engineering,Tongji University,Shanghai 201804,China)

机构地区：[1]Key Laboratory of Advanced Civil Engineering Materials of the Ministry of Education,Tongji University,Shanghai 201804,China [2]School of Materials Science and Engineering,Tongji University,Shanghai 201804,China

出　　处：《Journal of Wuhan University of Technology(Materials Science)》2019年第6期1345-1349,共5页武汉理工大学学报（材料科学英文版）

基　　金：Funded by the National Key Research and Development Program of China During the Thirteenth Five-Year Plan Period(No.2016YFC0700802);the National Natural Science Foundation of China(No.51478328);Natural Science Foundation of Shanghai(No.17ZR1442000);the Fundamental Research Funds for the Central Universities of China(No.22120180087)

摘　　要：Fly ash(FA) was utilized to hydrothermally synthesize FA based Al-substituted tobermorites, and was combined with raw materials of FA and municipal solid waste incineration fly ash(MSWI) to hydrothermally synthesize FA-MSWI based Al-substituted tobermorites. Then optimum samples named FA-T and FM-T were selected, correspondingly. Their intrinsic properties as well as their solidification/stabilization and adsorption of heavy metals were studied. The experimental results showed that the specific surface area of FA-T and FM-T was 28.259 m^2/g and 45.939 m^2/g, respectively. Their pore size distribution, particle size distribution, and median particle size were approximately the same. FA-T and FM-T both had great potential of solidification/stabilization heavy metal to dispose hazardous solid waste. Further, FA-T and FM-T also showed good adsorption efficiency for heavy metals Pb2+ and Cu2+ as adsorbent to treat waste water.Fly ash（FA） was utilized to hydrothermally synthesize FA based Al-substituted tobermorites, and was combined with raw materials of FA and municipal solid waste incineration fly ash（MSWI） to hydrothermally synthesize FA-MSWI based Al-substituted tobermorites. Then optimum samples named FA-T and FM-T were selected, correspondingly. Their intrinsic properties as well as their solidification/stabilization and adsorption of heavy metals were studied. The experimental results showed that the specific surface area of FA-T and FM-T was 28.259 m2/g and 45.939 m2/g, respectively. Their pore size distribution, particle size distribution, and median particle size were approximately the same. FA-T and FM-T both had great potential of solidification/stabilization heavy metal to dispose hazardous solid waste. Further, FA-T and FM-T also showed good adsorption efficiency for heavy metals Pb2+ and Cu2+ as adsorbent to treat waste water.

关 键 词：pore structure SOLIDIFICATION adsorption efficiency leaching procedure 

分 类 号：X705[环境科学与工程—环境工程] O647.33[理学—物理化学]