Automatic spraying defoaming device for waste leachate treatment

A technology of garbage leachate and automatic spraying, which is applied in the direction of aerobic process treatment, sustainable biological treatment, water/sewage multi-stage treatment, etc., to achieve the effect of saving sewage treatment costs, saving electric energy, and solving scaling and clogging

Inactive Publication Date: 2010-05-05
NINGBO CITY YINZHOU DISTRICT LYUZHOU ENERGY UTILIZATION CO LTD +1
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  • Abstract
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is to design a device that can not only prevent the spray from clogging, but also detect the height of the foam i

Method used

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  • Automatic spraying defoaming device for waste leachate treatment
  • Automatic spraying defoaming device for waste leachate treatment
  • Automatic spraying defoaming device for waste leachate treatment

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Embodiment Construction

[0013] After the domestic garbage in the large-scale garbage disposal site is piled up and rotted, the rancid leachate must undergo repeated multi-tank oxidation treatment in biochemical reaction tanks. The multi-stage biochemical reaction tanks in this site are gradually changed from sewage to clean water suitable for discharge. The composition of the leachate is complex and needs to be aerated and oxidized repeatedly. Due to the oxygenation by the blast, the organic components and air bubbles in the sewage in the biochemical reaction tank form a turbulent foam flow, which continuously surges to the water surface with the blast time, and it will rise if you are not careful. A few meters above the sewage surface, the overflow of the biochemical reaction tank causes the sewage foam to overflow, and the putrid smell fills the air, especially in the rainy season, which seriously pollutes the ground and air.

[0014] see figure 1 As shown, the leachate behind the domestic garbage ...

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Abstract

The invention relates to an automatic spraying defoaming device for waste leachate treatment, which comprises a biochemical reaction basin and an aeration device arranged in the biochemical reaction basin. A microwave probe for detecting foam height and a spraying hole tube are arranged above the water surface of the biochemical reaction basin; the microwave probe is connected with a spraying controller arranged outside the biochemical reaction basin; a control switch of the spraying controller is connected with a circulating water pump arranged under the water surface of the biochemical reaction basin; and the circulating water pump is connected with the spraying hole tube by a connecting tube to form a circulating device for waste water spraying and defoaming. The invention realizes the spraying and defoaming treatment in the aerobic phase of leachate biochemical treatment, solves dirt blockage during waste water spraying, avoids using a defoaming agent, thereby not only preventing secondary pollution, but also saving the cost of waste water treatment, wherein the automatic circulating defoaming treatment saves three fifths of defoaming cost, more than 90% electrical energy, and more than 95% waste water treatment cost, and can be popularized and applied to large-scale waste treatment sites.

Description

technical field [0001] The invention relates to a domestic garbage treatment device, in particular to a foam monitoring and elimination device in the treatment process of domestic garbage leachate. Background technique [0002] With the country's emphasis on and investment in environmental protection, many large-scale domestic waste treatment projects have been built across the country. The main way of domestic waste treatment is to dig pits and landfill. The main problem is the outflow of landfill leachate that produces a large amount of corruption and stench. environment. At present, the treatment of landfill leachate is mainly based on biochemical technology, and a large amount of overflowing foam will be generated during the aerobic treatment of sewage. The overflowing foam not only seriously affects the surrounding environment, but also affects the normal operation of the treatment device. In order to solve the harm of this kind of foam, the defoamer is mainly used at ...

Claims

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Application Information

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IPC IPC(8): C02F3/02C02F9/14G05B19/05
CPCY02W10/10
Inventor 高波
Owner NINGBO CITY YINZHOU DISTRICT LYUZHOU ENERGY UTILIZATION CO LTD
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