Pretreatment method for leachate of garbage transfer station

• Main Authors: XU XUFENG, MA SAI, SU DEXIN, FU YUAN, XIAO YAN
• Format: Patent
• Language: Chinese; English
• Published: 05.01.2024
• Subjects: CHEMISTRY; METALLURGY; TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE

The invention discloses a pretreatment method for leachate of a waste transfer station. The pretreatment method comprises the following steps: adjusting the pH value of the leachate; adding a compound coagulant for coagulation reaction, wherein the compound coagulant comprises PAC and a fly ash-based coagulant; adding an organic polymer coagulant aid for reaction and precipitation, and discharging the precipitated sludge; an organic polymer coagulant aid is added again for a reaction, then high-pressure air-dissolved water is introduced for air flotation, and after surface scum is removed, the pretreated percolate is obtained. According to the invention, a coagulating sedimentation coupled air floatation process is adopted for pretreatment, and water quality optimization of leachate pretreatment of the garbage transfer station is finally realized through the synergistic effect of a compound coagulant and a coagulant aid and the adhesion effect of air floatation. 本发明公开了一种垃圾中转站渗滤液预处理方法，包括如下步骤：调节渗滤液pH；加入复配混凝剂进行混