CHARACTERISTICS ANALYSIS AND RISK ASSESSMENT OF HEAVY METALS OF WASTE INCINERATION FLY ASH IN LHASA

NI Haifeng; DAN Zeng; ZHOU Wenwu; ZHOU Peng; XU Fei; YANG Tao; MENG Dean; CHEN Guanyi

doi:10.13205/j.hjgc.202203014

Volume 40 Issue 3

Mar. 2022

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Article Navigation > ENVIRONMENTAL ENGINEERING > 2022 > 40(3): 89-93,131

NI Haifeng, DAN Zeng, ZHOU Wenwu, ZHOU Peng, XU Fei, YANG Tao, MENG Dean, CHEN Guanyi. CHARACTERISTICS ANALYSIS AND RISK ASSESSMENT OF HEAVY METALS OF WASTE INCINERATION FLY ASH IN LHASA[J]. ENVIRONMENTAL ENGINEERING , 2022, 40(3): 89-93,131. doi: 10.13205/j.hjgc.202203014

Citation:

NI Haifeng, DAN Zeng, ZHOU Wenwu, ZHOU Peng, XU Fei, YANG Tao, MENG Dean, CHEN Guanyi. CHARACTERISTICS ANALYSIS AND RISK ASSESSMENT OF HEAVY METALS OF WASTE INCINERATION FLY ASH IN LHASA[J]. ENVIRONMENTAL ENGINEERING , 2022, 40(3): 89-93,131. doi: 10.13205/j.hjgc.202203014

Citation:

NI Haifeng, DAN Zeng, ZHOU Wenwu, ZHOU Peng, XU Fei, YANG Tao, MENG Dean, CHEN Guanyi. CHARACTERISTICS ANALYSIS AND RISK ASSESSMENT OF HEAVY METALS OF WASTE INCINERATION FLY ASH IN LHASA[J]. ENVIRONMENTAL ENGINEERING , 2022, 40(3): 89-93,131. doi: 10.13205/j.hjgc.202203014

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CHARACTERISTICS ANALYSIS AND RISK ASSESSMENT OF HEAVY METALS OF WASTE INCINERATION FLY ASH IN LHASA

doi: 10.13205/j.hjgc.202203014

1. School of Science, Tibet University, Lhasa 850000, China;
2. Tianjin University of Commerce, Tianjin 300072, China

Received Date: 2021-05-25
Available Online: 2022-07-07

Abstract

Abstract

Incineration is the mainstream technology of municipal solid waste treatment. Fly ash, as the main pollutant of waste incineration, has become a key link in waste incineration pollution control. In this study, we collected fly ash samples from waste incineration power plants in Lhasa, and analyzed the heavy metals content and leaching toxicity characteristics, and adopted improved potential risk assessment method and health risk assessment method to evaluate the risk of heavy metals in fly ash. The results showed that the heavy metals content of fly ash in Lhasa was relatively high, and the leaching concentration of Pb obviously exceeded the maximum allowable value of the leaching solution in the Identification Standard for Hazardous Wastes (GB 5085.2-2007). Pollution evaluation results showed that Pb in fly ash had heavy risk of pollution to the environment. The health risk assessment results showed that the carcinogenic risk of heavy metals in fly ash to humans was within an acceptable range, but its non-carcinogenic risk value was higher than the non-carcinogenic risk value recommended by the U.S. Environmental Protection Agency (EPA), indicating had a higher non-carcinogenic risk on human body. Among them, the non-carcinogenic risk values of Pb for adults and children were 3.8975 and 9.7458 respectively, which was the main contributor to the non-carcinogenic risk.
- Lhasa,
- fly ash,
- heavy metals,
- characteristics,
- health risk assessment

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References(22)

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