Cost-saving household garbage incineration slag recycling water treatment process

Abstract

The invention discloses a cost-saving household garbage incineration slag recycling water treatment process, and relates to the technical field of slag sorting. The cost-saving household garbage incineration slag recycling water treatment process comprises the following steps: 1, carrying out chemical adding treatment on slag water, 2, carrying out primary treatment on slag water through a primary sedimentation tank, 3, carrying out further treatment on the slag water through a secondary sedimentation tank, and 4, carrying out treatment on a water outlet end of a filter press. Through the design of the first-stage sedimentation tank and the second-stage sedimentation tank, underflow after sedimentation in the first-stage sedimentation tank is conveyed to the filter press for treatment through an electric valve, overflow enters the second-stage sedimentation tank, underflow after sedimentation is conveyed to the filter press for treatment through the electric valve, overflow directly enters the clear water tank for recycling, and overflow in the clear water tank enters a standby tank. Therefore, the system does not need to be provided with a sludge tank, and the use cost of the system is reduced.

Description

Technical field [0001] The present invention relates to a water treatment process involving the technical field of slag sorting, and more particularly to a cost-saving waste incinerator slag recovery water treatment process. Background technique [0002] In recent years, with the expansion of urban scale and the improvement of people's living standards, the growth of domestic garbage is rapid, and the problem of domestic waste treatment has seriously affects the normal development of the city, and the method of domestic waste incineration is more commonly used. Efficient reduction, harmless Disposal technology, but the waste of the lazer after incineration still has stacking and pollution problems, which is not conducive to the promotion of garbage incineration technology. The unprocessed incinerator slag is mainly disposed of landfill, and urban landfill is becoming more and more tense, fill in The buried cost is increasing, on the other hand, the incinerator slag contains metal...

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Problems solved by technology

[0005] The present invention provides a cost-saving domestic waste incineration slag recovery and utilization water treatment process, one purpose of which is to have the function of no need to set up a sludge tank so that the system water can directly enter the primary sedimentation tank, so as to solve the occupation of the sludge tank The problem of large space and high maintenance cost of the sludge tank in subsequent use; another purpose is to solve the problem of large flow before the sludge is formed during the start-up stage of the filter press, and a large amount of unconcentrated water enters the cycle, which causes the unit power failure. The problem of high power consumption, in order to achieve the effect of reducing power consumption

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