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Treatment system for waste water from exhaust gas desulfurization in gas-electricity generating device

A waste water treatment system and waste gas desulfurization technology, which is applied in oxidation water/sewage treatment, flocculation/sedimentation water/sewage treatment, sedimentation tank, etc. The effect of cleanliness, space saving and labor saving

Inactive Publication Date: 2004-08-18
LONG CHEN PAPER
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] (1) Natural drying: a huge drying pool is required, and a huge space is required
[0004] (2) Heating and steaming to dryness: heat source is wasted, and water vapor containing sulfides will be produced in the process of steaming to dryness. Although there is no fly ash (soot), it is a factor that causes acid rain and is also a kind of environmental pollution.
[0005] (3) Filtration of filter material: It is also necessary to set up filter press equipment, which consumes power and filter material (replaced regularly), needs to be cleaned frequently (otherwise it will be blocked), and requires regular maintenance, which is extremely inconvenient

Method used

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  • Treatment system for waste water from exhaust gas desulfurization in gas-electricity generating device
  • Treatment system for waste water from exhaust gas desulfurization in gas-electricity generating device

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Embodiment Construction

[0024] The composition, flow, functions and effects of the wastewater treatment system of the present invention will be described in detail below with reference to the accompanying drawings.

[0025] Such as figure 1 As shown, the wastewater treatment system of the present invention comprises: oxidation tank 1, boiler water seal tank 2, bottom ash stirring tank 3, quick sedimentation tank 4, waste water tank 5, and its system arrangement, the method for processing are:

[0026] Oxidation tank 1: Receive the waste water containing magnesium sulfate or magnesium sulfite from steam-electric cogeneration desulfurization equipment. It has the function of aeration and can be stirred to make it oxidize, so that the waste water is magnesium sulfate (MgSO 4 ) solution state;

[0027] Boiler water seal tank 2: withstand the magnesium sulfate-containing wastewater from oxidation tank 1 to produce a preliminary precipitation effect, that is to say, the wastewater coagulates with the ash ...

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Abstract

The present invention provides one unique practical system for treating waste water from desulfurizing water gas of steam and electric power co-producing apparatus, separating suspended solid from water and making effluent reach drainage standard. The treating system includes oxidizing tank, boiler water seal tank, bottom ash stirring pond, fast bottom ash depositing pond and waste water tank, and treats the waste water through unique process and control to separate the waste water containing magnesium sulfate and ash sludge into water and sludge. The drained water is suitable for sewage disposal yard to further treat and the ash sludge for reuse.

Description

technical field [0001] The present invention relates to a waste water treatment system after waste gas desulfurization treatment of steam-electricity cogeneration equipment, so that the waste water generated by steam-electricity cogeneration equipment can be separated from water and suspended solid plaster, and the water can be discharged to the general wastewater treatment field for further processing. Discharged from the discharge port, it is convenient to concentrate the stucco for reuse, and the discharged water meets the discharge standard. Background technique [0002] Steam-electricity co-generation equipment converts fuel heat energy into steam and electricity to meet the needs of industrial process production. It uses coal or fuel oil to make boilers generate steam, and exhaust gas will be generated during the combustion process. However, the traditional treatment methods for exhaust gas pollution are nothing more than: (1) collecting dust (charcoal powder or soot) ...

Claims

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Application Information

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IPC IPC(8): B01D21/02C02F1/52C02F1/72
Inventor 林文卿潘清桂陈国辉张惠凯赖锦昌林钊平陈勇志
Owner LONG CHEN PAPER
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