Biochemical garbage leachate treatment technology

Abstract

The invention discloses a biochemical garbage leachate treatment technology. The technology removes ammoniacal nitrogen from a water body by an electrochemical oxidization manner; a composite electrolyte is developed and matched with a specially designed electrode; ammoniacal nitrogen can be effectively removed from the water body under a lower voltage condition; an ammoniacal nitrogen removal effect is improved; and operation energy consumption is reduced. Compared with simple ozone oxidation, catalytical ozone oxidation of a device has a higher COD (chemical oxygen demand) removal rate and shorter contact reaction time; at the same time, an independently developed heterodisperse catalytical ozonization catalyst is added into a catalytical ozone oxidation reaction tank of the device, canbe uniformly dispersed in liquid to be treated, is sufficiently contacted with ozone molecules, and promotes conversion and generation of oxygen radicals and hydroxyl radicals; ozone exerts strong oxidizing ability in a solution and decomposes or converts refractory organic matter into micromolecules easier to remove or mineralizes the refractory organic matter; and a COD value is reduced.

Description

technical field [0001] The invention relates to the field of wastewater treatment. The invention relates to a biochemical landfill leachate treatment process. Background technique [0002] Landfill leachate refers to the moisture contained in the garbage itself in the landfill, the rain and snow water and other moisture entering the landfill, deducting the saturated water holding capacity of the garbage and the covering soil, and passing through the garbage layer and the covering soil. A high concentration of organic wastewater. Its characteristics are: complex water quality components, high COD and BOD concentrations, high ammonia nitrogen concentrations, and many types of organic matter. Based on the above characteristics, the treatment of landfill leachate requires a combination of various technical means in order to meet the requirements of the new discharge standards. The common technologies for removing ammonia nitrogen are deammonization tower, nitrification and de...

AI Technical Summary

Problems solved by technology

The usual ozone oxidation method is limited in use due to its limited treatment efficiency and relatively high energy consumption.

After proper pretreatment, biochemical treatment is also one of the landfill leachate treatment methods, but the traditional activated sludge microbial agent may have insufficient impact resistance or low metabolic efficiency, resulting in post-treatment The effluent does not meet the new discharge standards