WASTE WATER TREATMENT EQUIPMENT IN FLUE GAS DESULFURIZATION FACILITY

摘要

[Problem] To make effective trapping of foam or scum from discharged seawater possible with structurally simple equipment. [Solution] Treatment equipment for trapping foam or scum floating on the surface of seawater in the seawater channel that discharges post-absorption seawater in a flue gas desulfurization facility for absorbing and removing sulfur oxides in exhaust gas into seawater, wherein an air lift device (30) is configured from an introducing channel (34) that has an upper opening dam (32) at the upper end thereof and is submerged in the seawater, a pumping channel (36) that is connected to the introducing channel (34) and spans from within the seawater to above the seawater surface, and an air-blowing means (38) that delivers air into the lower part of the pumping channel (36). The equipment is configured so that the dam (32) is disposed in the flow of the seawater and the inflow opening (32A) of the dam is positioned substantially at the surface of the seawater to trap foam or scum floating on the seawater surface from the inflow opening (32A) of the dam using the air lift device (30) and to conduct same outside of the flow of the seawater via the pumping channel (36).