Analysis of Pyrolysis Characteristics of Oily Sludge in Different Regions and Environmental Risk Assessment of Heavy Metals in Pyrolysis Residue
Lili Wang, Yuanshun Xu, Zehua Zhao, Dapeng Zhang, Xiaochen Lin, Bing Ma, Houhu Zhang
Abstract
values of OS2-700 and other metals were far lower than 40, which were low hazards. With the increase of pyrolysis temperature, the comprehensive ecological hazard index (RI) of heavy metals in the residue gradually decreased and the RI value of OS2-700 decreased to 28.01. Therefore, the pyrolysis residue had an internal porous structure and controllable environmental risk. It could be used as an adsorption material for heavy metals to realize the comprehensive utilization of OS.
Topics & Concepts
PyrolysisResidue (chemistry)PollutionPorosityResource recoveryEnvironmental chemistryWaste managementEnvironmental pollutionChemistryHeavy metalsEnvironmental sciencePulp and paper industryMaterials scienceEnvironmental engineeringWastewaterOrganic chemistryEnvironmental protectionEcologyBiologyEngineeringCoal and Its By-productsThermochemical Biomass Conversion ProcessesHeavy metals in environment