Wastewater treating device of kitchen wastewater recycling flow

Abstract

The invention relates to a wastewater treating device of a kitchen wastewater recycling flow, comprising a liquid fertilizer producing part (1), a fermented manure producing part (2) and a purifying part (3), wherein the liquid fertilizer producing part (1) performs the following steps of: heating and stirring wastewater produced in a kitchen waste recycling treatment process so that the wastewater rotates at a rotating speed of 4000-6000 rpm, separating out oil component, wastewater and sludge, fermenting the separated wastewater at the rotating speed of 4000-6000 rpm by means of microorganisms, and then separating the generated microorganisms and treated water through sedimentation; the fermented manure producing part (2) is used for mixing the liquid fertilizer conveyed from the liquid fertilizer producing part (1) with coco coir and then performing aeration, stirring and fermentation; and the purifying part (3) is used for treating the supernatant water separated through sedimentation conveyed from the process of the liquid fertilizer producing part by using an iron salt, sodium hydroxide and a coagulant so that the floating dregs are condensed, and then performing aeration to clear away the floating dregs on the water surface.

Description

technical field [0001] The present invention relates to a waste water treatment device in the process of recycling kitchen waste water, in particular, the waste water generated in the process of recycling kitchen waste is fermented to produce liquid fertilizer or compost, and the purified water is recycled as process water or Released to the outside. Background technique [0002] Kitchen waste generally accounts for one-third of domestic waste. Although it is organic matter, it contains a lot of water, is not easy to incinerate, and has a large salt content, which makes it difficult to recycle. In particular, it has been accused of being the culprit of odor and leachate, and some landfills even refuse to accept treatment. [0003] However, with the soaring international feed and fertilizer prices, the demand for recycling food waste is gradually increasing. Farmers who have been refusing to use it before have gradually increased their attention to the food waste resource p...

AI Technical Summary

Problems solved by technology

[0005] However, according to the traditional process, the waste water generated in the food waste recycling process is recycled and discharged into the ocean, and the sludge and various foreign matters contained in the food waste waste water are also directly discharged to cause environmental pollution.

[0006] That is to say, the amount of food waste resource treatment facilities has increased significantly, but the treatment facilities for the waste water generated in the resource treatment process are not up to standard, and they are unwilling to invest in facilities, which eventually leads to the problem of low product quality

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