摘要
目前,国内污染土壤热脱附修复的能量来源主要为化石燃料,而电能作为能源在国内鲜见报道。电能用作热脱附修复的能源,相比化石燃料,具有可控、清洁和可再生的优点。为了验证电能用作热脱附修复能量来源的可行性,明确其加热规律,试验从广州市某油制气厂有机污染场地采集污染土壤样品,在室内探究不同热源排列方式与加热方式对修复效果的影响,并观测各处理方式下的污染土壤升温规律。室内模拟试验结果表明,各电加热处理组升温过程均存在平台期;间歇加热与持续加热修复效果相当,间歇加热能节约61%的电能;与三角形排列相比,热源六边形排列能得到更大的影响半径。试验从加热温度与修复效果方面证明电加热修复具有一定的可行性,为后续电加热修复技术的推广提供数据支撑与实践经验。
At present,the main energy source for thermal desorption remediation of polluted soil in China is fossil fuels,and there are few reports on electricity as an energy source in China.Electric energy used as an energy source for thermal desorption remediation has the advantages of controllability,cleanliness,and renewability compared to fossil fuels.In order to verify the feasibility of using electrical energy as a source of energy for thermal desorption remediation and clarify its heating law,contaminated soil samples are collected from an organic contaminated site in an oil-to-gas plant in Guangzhou city,and the effects of different heat source arrangements and heating methods on remediation effectiveness are explored indoors,and the heating law of contaminated soil under various treatment methods is observed.The indoor simulation test results show that there is a plateau period in the heating process of each electric heating treatment group;intermittent heating and continuous heating have comparable remediation effects,with intermittent heating saving 61%of electrical energy;compared with the triangular arrangement,the hexagonal arrangement of heat sources can obtain a larger influence radius.The experiment proves the feasibility of electric heating remediation in terms of heating temperature and remediation effect,providing data support and practical experience for the promotion of electric heating remediation technology in the future.
作者
杨富淋
YANG Fulin(Guangdong Kenuo Surveying Engineering Co.,Ltd.,Guangzhou510700,China)
出处
《中国资源综合利用》
2024年第12期18-22,共5页
China Resources Comprehensive Utilization
基金
中国能源建设股份有限公司重大科技专项(CEEC2021-KJZX-01)
中国能源建设股份有限公司重大科技专项(CEEC2022-KJZX-02)
中国电力工程顾问集团有限公司科技项目(DG3-P01-2022)。
关键词
油制气厂
有机污染场地
电加热修复
污染土壤
热脱附
oil-to-gas plant
organic pollution sites
electric heating remediation
polluted soil
thermal desorption
