Leachate treatment method of waste incineration power station

Abstract

The invention discloses a leachate treatment method of a waste incineration power station. The leachate treatment method comprises the following steps: 1) introducing the waste incineration leachate into a sand settling pond, and preprocessing the waste incineration leachate to remove a great amount of settled sand in sewage; 2) introducing the leachate into a regulating pond, tempering the leachate, so that the PH of the inlet water of the sewage is kept at 5 to 6 in 2 days; 3) enabling the leachate to enter an intermediate temperature pond, introducing steam to adjust the temperature to be between 35 DEG C and 39 DEG C, and homogenizing the sewage temperature by virtue of a stirrer in the intermediate temperature pond; 4) introducing the incineration waste leachate after being processed in the intermediate temperature pond to have anaerobic decomposition, decomposing and converting various complex organic matters into marsh gas, so that the incineration waste leachate is primarily purified; 5) carrying out the denitrification/nitrification treatment; and 6) filtering. By adopting the leachate treatment method, the water yield of a leachate treatment system in the waste incineration power station, the residual concentrated liquid can be ensured to be completely consumed in the waste incineration power station, and the emission of the concentrated liquid can be prevented from severely polluting the environment.

Description

technical field [0001] The invention belongs to the technical field of sewage treatment, and more specifically relates to a leachate treatment method of a waste incineration power plant. Background technique [0002] Landfill leachate from waste incineration power plants is a kind of high-concentration organic wastewater that is difficult to treat. Most of the leachate treatment devices currently in use are complex in treatment process and the existing leachate treatment system has a low water production rate and occupies a large area. sewage treatment plant. Applied on November 28, 2012 with the application number CN 102795746 A, the invention patent of leachate treatment method and device of waste incineration power plant discloses a leachate treatment method and device, which sends the raw liquid of landfill leachate into raw water for adjustment tank, coagulation reaction system, primary UBF reactor, primary UBF reactor effluent intermediate tank, secondary UBF reactor,...

AI Technical Summary

Problems solved by technology

However, the leachate treatment method has cumbersome steps, its device structure is complex, occupies a large site, and the low water production rate leads to a large amount of concentrated liquid, and the discharge of the concentrated liquid will cause serious environmental pollution problems.

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