抄録
The development of a simple, low-cost method for making wastewater polluted with dioxins⁄furans (dioxins) harmless is one of the important assignments in a waste incineration and a sewage disposal plants. The purpose of the present study is basically to develop a simple removal method of dioxins in wastewater and to evaluate a basic removal ratio of dioxins. Removal method of dioxins in wastewater has been investigated by using fluidized bed with polyolefin particles, which have adsorption ability for fly carbonaceous matters (C∗) including almost all dioxins. The fly C∗ including almost all dioxins in wastewater can be removed by adsorbing on polyethylene (PE) particles. The removal ratio of dioxins (RDW) from wastewater by using fluidized bed with PE particles is estimated from the following equation: RDW (%) = 100×{ 1−exp(−8×10−4•SS•tC)}, where SS (cm2⁄cm3) is a specific surface area of particles, and tC (s) is a contact time between particles and wastewater.
