Zero discharge system of water treatment sludge through Alum recovery and reuse as a daily landfill cover soil

摘要

The present invention is an integer and then through the acid treatment the sludge after treatment separated into filtrate and concentrated sludge containing aluminum, and the filtrate was collected, followed by a high-purity aluminum recycling it back to the water treatment coagulant for the concentrated sludge from through the slaked lime injection by using a neutralizing treatment, dehydration property improvements, substitutions to achieve improved physical properties of reclaimed boktojae itself, to completely recycle an integer sludge relates to a no-discharge system (zero discharge system) that the waste does not come out at all.