Transformation of Dioctyl Phthalate in Bioreactor Landfill

Abstract:

Considering the refuse and leachate as one whole system, a conventional landfill (CL) was set as a control, transformation of dioctyl phthalate (DOP) in recirculated landfill (RL) and bioreactor landfill (BL) was studied. Results showed that DOP was detected in both leachate and refuse from CL, RL and BL. The initial DOP amount was 0.8 μg g^-1 in the landfill refuse. At the day of 310, refuse sedimentation rates were 7.0%, 11.9% and 24.3% in CL, RL and BL, respectively. DOP removal rates were 17.4%, 30.8% and 31.7% in the refuse from CL, RL and BL, respectively. The residual amounts of DOP with significant differences well fitted exponential decay models in CL, RL and BL. DOP biodegradation was accelerated with the operation of leachate recirculation compared to the conventional operation, and it was further promoted with the introduction of methanogenic reactor.

• Periodical: Applied Mechanics and Materials (Volume 768)
• Pages: 304-309
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.768.304
• Online since: June 2015
• Authors: Cheng Ran Fang*, Hong Yuan Liu
• Keywords: Bioreactor Landfill, Dioctyl Phthalate (DOP), Municipal Solid Waste, Transformation

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