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Method for comprehensively controlling and utilizing waste water, waste gas and residue heat

A comprehensive treatment and wastewater technology, applied in the comprehensive treatment and utilization of boiler flue gas and waste heat, industrial alkaline wastewater, can solve the problem of high neutralization cost, reduce treatment costs, improve reliability, and simplify the process.

Inactive Publication Date: 2006-02-22
王惠生
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, many industrial enterprises, such as textile, leather, chemical, and paper-making enterprises, discharge a large amount of alkaline wastewater (called industrial alkaline wastewater). high

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  • Method for comprehensively controlling and utilizing waste water, waste gas and residue heat

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Embodiment Construction

[0007] The present invention will be further explained below.

[0008] The industrial alkaline wastewater is first sent to the water collection adjustment tank to adjust the water quality and quantity, which can adapt to the uneven characteristics of industrial alkaline wastewater discharge. The water collection regulating tank can be a homogeneous and uniform volume regulating tank or a flat-flow regulating tank. The size of the pool can be based on the amount of water produced by industrial alkaline wastewater and a change period of water quality. If the cycle is difficult to grasp, the design standard can be based on the wastewater retention time of 8 hours.

[0009] The anti-blocking treatment of industrial alkaline wastewater is to filter out the fiber and suspended matter in the wastewater to ensure that the wastewater is sprayed, uniformly distributed, and fine (atomized) in the desulfurization absorption tower. The selection of the anti-blocking treatment process can be de...

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Abstract

The invention provides a method for comprehensive treatment and use of waste water, waste gas and waste heat, belonging to a treatment of waste water and waste water. The process is as the following: sending industrial basic waste water into water collecting regulating reservoir to regulate the water quality and water quantity, then sending it into desulfuration absorption tower to spray after the anti- stoppage treatment, part waster water which flows out from desulfuration absorption tower returning to the desulfuration absorption tower and reacting, the other waste water flowing into water- water heat exchanger to transfer heat, after biochemical treatment and physicochemical treatment the standard- reached water draining out. Invented saves the cost of treating waste water, and by heat transfer, it recycles the waster heat which can apply directly in industry and life.

Description

Technical field [0001] The invention provides a method for the treatment and utilization of waste water, waste gas and waste heat, in particular a comprehensive treatment and utilization method for industrial alkaline waste water, boiler flue gas and waste heat. Background technique [0002] The flue gas produced by coal-fired boilers and oil-fired boilers contains a large amount of sulfur dioxide. The treatment of sulfur dioxide is to remove it, and currently the wet method is usually used. In wet desulfurization, the main method is alkali method, and the main methods (more than 90%) in alkaline desulfurization are lime and limestone methods. The desulfurizing agents are lime (CaO) and limestone (CaCO). 3 ), there are other magnesium method, ammonium method, double alkali method and so on. Among these removal methods, the desulfurizer constitutes the main operating cost of the desulfurization process. The gypsum containing a large amount of impurities formed...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D53/78C02F1/00
Inventor 王惠生
Owner 王惠生