Method for treating garbage leachate based on multidimensional strong oxidization and circular biochemical treatment

Abstract

The invention relates to a method for treating a garbage leachate based on multidimensional strong oxidization and circular biochemical treatment, belonging to the technical field of sewage treatment. The method comprises the following steps: the garbage leachate is collected and injected into a regulating tank, water quantity regulation and water quality regulation are performed, the regulated garbage leachate is injected into a multidimensional strong oxidization facility, organic matters are directly degraded by using electrodes, and heavy metal ions are adsorbed and collected in the meanwhile, so that the growing environment of the putrefying bacteria flora is destroyed, thereby eliminating the putrefying bacteria and other florae with poor activities, providing a stable water quality environment for subsequent treatment, and avoiding the uncertainty of the treatment result; after flocculent precipitation is performed, the heavy metal ions and killed florae are separated and removed along with the flocculent precipitate, and residual organic matters in the water are consumed by the metabolism of anaerobic bacteria in an anaerobic pond, thereby improving the environment for the subsequent circular biochemical treatment; in the four-stage circular biochemical treatment, aerobic bacteria under aeration conditions are utilized to eliminate organic pollutants in the water; the wastewater subjected to biochemical treatment are subjected to flocculent precipitation by chemical agent addition; and finally, filtration is performed to form the harmless treated water.

Description

technical field [0001] The invention belongs to the technical field of sewage treatment, and in particular relates to a method for treating garbage permeate based on multidimensional strong oxidation and cycle biochemistry. Background technique [0002] Garbage seepage 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 kind of high-concentration organic wastewater, in addition, there is also the water leaked from the accumulated garbage that is ready to be incinerated. The water quality of the garbage permeate is complex, and the composition mainly includes three aspects: 1) the moisture contained in the garbage itself and A large number of soluble organic and inorganic substances dissolved by the rainwater of the garbage; 2) soluble products p...

AI Technical Summary

Problems solved by technology

The existing treatment process mainly adopts flocculation sedimentation plus biochemical method plus RO membrane separation method. Due to the complexity of the components in the garbage permeate, the treatment effect of the existing process is not ideal, and the final treatment water will contain some impurities that cannot be treated. Pollutants, thus causing a corresponding impact on the environment, the cost of RO membrane separation method is very high, it is not suitable for the continuous treatment of a large amount of garbage permeate, therefore, it is necessary to improve the treatment method of garbage permeate

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