粉煤灰改性及其资源化应用进展  

Progress in Modification of Fly Ash and its Resource Utilization

作　　者：胡少军 李帅 吴求刚 范玉超[1,3] HU Shaojun(School of Earth and Environment,Anhui University of Science and Technology,Huainan 232001,China;Jiangsu Institute of Geological and Mineral Design,Xuzhou 221006,China;Engineering Laboratory of Anhui Province for Comprehensive Utilization of Water and Soil Resources and Construction of Ecological Protection in Mining Area with High Groundwater Level,Huainan 232001,China)

机构地区：[1]安徽理工大学地球与环境学院,安徽淮南232001 [2]江苏地质矿产设计研究院,江苏徐州221006 [3]安徽省高潜水位矿区水土资源综合利用与生态保护工程实验室,安徽淮南232001

出　　处：《安徽农学通报》2021年第18期165-169,共5页Anhui Agricultural Science Bulletin

基　　金：淮北矿业集团科技研发项目(No.2020-113);中国煤炭地质总局煤系矿产资源重点实验室开放基金(KFKT-2020-6)。

摘　　要：粉煤灰作为一种传统的固体废物,因产量大、利用率低而大量堆积,污染周边环境。由于粉煤灰具有独特的玻璃体结构、比表面积大、孔隙度发达、结构稳定等特点,在土壤修复以及废水治理等领域具有较好的应用潜力。因此,对粉煤灰进行资源化利用是解决其堆积与污染的有效途径之一。该文综述了当前改善粉煤灰性能的物理、化学和生物改性方法及其机制,讨论了其在建筑业、农业、环境修复领域的应用进展,并对粉煤灰长期应用风险及改性研究方向进行了展望,以期为改性粉煤灰的制备及其应用提供参考。As a traditional solid waste,large amounts of fly ash are accumulated due to its large yield and low utiliza⁃tion rate.The fly ash has great potential in soil and wastewater remediation due to its unique vitreous structure,large specific surface area,developed porosity,and stable structure,etc.Therefore,the recycling of fly ash is an effective way to solve its accumulation and environmental pollution.In this paper,physical,chemical and biological modifica⁃tion methods of fly ash and their mechanisms were discussed in detail.Then,the application progresses of fly ash in the fields of construction,agriculture and environmental remediation were elaborated as well.Finally,we prospected the long-term application risk and the research direction of modification of fly ash in future.This review would pro⁃vide theoretical guidance for the modification and application of fly ash.

关 键 词：粉煤灰 改性 应用 风险 资源化 

分 类 号：U414[交通运输工程—道路与铁道工程]