Affiliation:
1. College of Environmental Science and Engineering Donghua University Shanghai China
2. State Key Laboratory of Pollution Control and Resourcefulness Research, College of Environmental Science and Engineering Tongji University Shanghai China
Abstract
AbstractThe adsorption capacity of soil itself makes it difficult to efficiently remove phenanthrene and pyrene from soil by direct leaching. In this article, hydrochar was introduced into the leaching process after modification, and the enhanced leaching effect of hydrothermal carbon was explored under various influencing factors. The experimental results show that the modified hydrochar competes with the soil for adsorption during the leaching process, promotes the desorption of pollutants and adsorbs some pollutants in the leaching solution, which greatly enhances the leaching effect. The elution of phenanthrene increased from 64.06% to 91.08% and of pyrene from 70.26% to 91.13% under the optimum enhanced drenching conditions. This work provides some new ideas for the removal of PAHs from the natural soil environment.
Subject
General Environmental Science,Waste Management and Disposal,Water Science and Technology,General Chemical Engineering,Renewable Energy, Sustainability and the Environment,Environmental Chemistry,Environmental Engineering