典型文献
Accelerated alkalinity regulation and long-term dry-wet aging durability for bauxite residue remediated with biomass pyrolysis
文献摘要：
Biomass fermentation provides a potential route toward the ecological disposal for the bauxite residue (BR) with high alkalinity issues.However,how to accelerate the remedia-tion of the alkaline problem with a long-term durability is still a big challenge.Herein,we investigated the acceleration of the decomposition of straw toward organic acid species via a pyrolysis strategy as well as the pH stability during long-term dry-wet aging for the treated BR.The pH of pyrolytic BR at 300 ℃ is stabilized at around 8.90 after 70 days' dry-wet aging.During the aging,the main Ca-contained alkaline minerals of calcite and cancrinite are dis-solved and the content of exchangeable Na+ is reduced.This pyrolysis process can decom-pose straw quickly and produce more organic matters that are easily degraded to fulvic and humic acid as evidenced by 3D fluorescence spectrum analysis.Compared to the fermen-tation with straw under natural conditions,the alkalinity regulation of BR after pyrolysis is featured with shorter period and lower pH as well as long-term pH stability.Therefore,the synergistic pyrolysis of BR with straw provides an alternative method to address the alkaline issues,which is conducive to promoting the soil formation of BR.
文献关键词：
中图分类号：
作者姓名：
Zhexiang He;Jingju Zhou;Jianwei Tang;Chuxuan Li;Jun Jiang;Wei Chen;Feng Zhu;Shengguo Xue
作者机构：
School of Metallurgy and Environment,Central South University,Changsha 410083,China;School of Ecology and Environment,Zhengzhou University,Zhengzhou 450001,China
文献出处：
引用格式：
[1]Zhexiang He;Jingju Zhou;Jianwei Tang;Chuxuan Li;Jun Jiang;Wei Chen;Feng Zhu;Shengguo Xue-.Accelerated alkalinity regulation and long-term dry-wet aging durability for bauxite residue remediated with biomass pyrolysis)[J].环境科学学报（英文版）,2022(01):220-228
A类：
remedia,cancrinite
B类：
Accelerated,alkalinity,regulation,long,term,dry,wet,aging,durability,bauxite,residue,remediated,biomass,pyrolysis,Biomass,fermentation,provides,potential,route,toward,ecological,disposal,BR,high,issues,However,how,accelerate,alkaline,problem,still,big,challenge,Herein,investigated,acceleration,decomposition,straw,organic,acid,species,via,strategy,well,stability,during,treated,pyrolytic,stabilized,around,after,days,During,main,contained,minerals,calcite,solved,content,exchangeable,Na+,reduced,This,process,pose,quickly,produce,more,matters,that,easily,degraded,fulvic,humic,evidenced,by,fluorescence,spectrum,analysis,Compared,under,natural,conditions,featured,shorter,period,lower,Therefore,synergistic,alternative,method,address,which,conducive,promoting,soil,formation
AB值：
0.52675
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机标中图分类号，由域田数据科技根据网络公开资料自动分析生成，仅供学习研究参考。
