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Removal Characteristics of Heavy Metals in Typical Waste Paper Processing and Utilization
Received:November 15, 2021  
DOI：10.11980/j.issn.0254-508X.2022.03.008
Key Words:waste paper recycling  heavy metal removal  pulping  deinking  bleaching
Fund Project:国家重点研发计划项目（2019YFC1904802；2017YFC0703206）。
Author NameAffiliationPostcode
ZHANG Ying School of Municipal and Environmental Engineering， Shenyang Jianzhu University， Shenyang， Liaoning Province， 110168
Research Institute of Solid Waste Management， Chinese Research Academy of Environmental Sciences， Beijing， 100012 		100012
MENG Bangbang Research Institute of Solid Waste Management， Chinese Research Academy of Environmental Sciences， Beijing， 100012 100012
HUANG Hui Research Institute of Solid Waste Management， Chinese Research Academy of Environmental Sciences， Beijing， 100012 100012
YUE Bo* Research Institute of Solid Waste Management， Chinese Research Academy of Environmental Sciences， Beijing， 100012 100012
LIN Ye School of Municipal and Environmental Engineering， Shenyang Jianzhu University， Shenyang， Liaoning Province， 110168 110168
WANG Chao School of Municipal and Environmental Engineering， Shenyang Jianzhu University， Shenyang， Liaoning Province， 110168
Research Institute of Solid Waste Management， Chinese Research Academy of Environmental Sciences， Beijing， 100012 		100012
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Abstract:In this study， the removal degree of heavy metals in "pulping-deinking-bleaching" of three typical imported wastepaper was simulated.The results showed that the removal characteristics of 3 kinds of waste paper（1#， 2# and 3#）in pulping process were 17.34%， 13.70% and 17.77%， respectively. 1# waste paper material was relatively clean， so that it did not need to be deinked and bleached. The removal characteristics of heavy metals in 2# and 3# in deinking processes were 31.14% and 20.54%， respectively， and which in bleaching process were 13.73% and 23.49%， respectively. Overall recycling link heavy metal removal characteristics was 60%~70%.The pulping process had a general effect on the removal of heavy metals from waste paper， and deinking and bleaching were the main steps to remove heavy metals from waste paper.That is the printing ink， pigment and other substances in the waste paper could be removed， and the the heavy metal content in pulp could be reduced in deinking and bleaching.
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