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Alkaline residue treatment method

A treatment method and technology for alkali residues, applied in the field of industrial waste treatment, can solve the problems of poor microbial colony adaptability and treatment effect, not yet achieved good treatment effect, insufficient equipment load bearing capacity, etc., so as to achieve no secondary pollution, Good social benefits and effects of important environmental protection significance

Inactive Publication Date: 2018-02-27
河北玖兆环保科技有限公司
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Problems solved by technology

At present, many enterprises and scientific research institutes have carried out a lot of research work on the treatment technology of alkali slag, but they have not yet achieved good treatment results; in addition, most of the alkali slag has a high COD, which produces a large amount of odor during the treatment process, and the equipment load bears Insufficient capacity leads to poor treatment effect of the existing technology and fails to meet the national discharge standards, especially when a large amount of refractory toxic organic matter enters the activated sludge biochemical treatment system, the adaptability and treatment effect of microbial colonies are poor, which will lead to system paralysis

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Embodiment Construction

[0028] In order to make it easier for those skilled in the art to understand the technical solution of this patent, and at the same time, in order to make the technical purpose, technical solution and beneficial effect of this patent clearer, and to fully support the protection scope of the claims, the following is a specific case in the form of this patent. The technical solution of the patent makes further and more detailed descriptions.

[0029] A kind of alkali slag processing method, it comprises the following steps:

[0030] (1) According to the pH value of the alkali slag to be treated, the COD value and the total input amount of the alkali slag to be treated in the physical and chemical reaction tank, add sufficient water in advance in the physical and chemical reaction tank, so that the alkali slag of the total input amount is dissolved in The COD value of sufficient water is less than 50,000 mg / L;

[0031] (2) Open the microbubble generator on the physical and chemi...

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Abstract

The invention discloses an alkaline residue treatment method, and belongs to the technical field of industrial waste treatment. The method comprises the following processes: dilution of alkaline residues, adding of acid, oxidation, deodorization, flocculation and filtration of alkaline residue effluent, biochemical treatment and the like. The method has the characteristic of being simple in process, low in cost and wide in applicability, the difficulty and complexity of alkaline residue treatment can be weakened by adopting a manner of adding water to dilute the alkaline residues, and the treatment efficiency is improved, so that the method is an important improvement of the prior art.

Description

technical field [0001] The invention relates to the technical field of industrial waste treatment, in particular to an alkali slag treatment method. Background technique [0002] In the refining process of oil refining and ethylene, in order to remove sulfide in the product, alkali washing process is usually adopted, and a large amount of alkali residue containing high concentration of sulfide and refractory organic matter will be produced during the alkali washing process. In these alkali residues, the discharge of COD (chemical oxygen demand), sulfide and phenol accounts for 40% to 50% of the total pollutant discharge of refineries, which directly affects the normal operation of sewage treatment facilities in petrochemical plants and sewage treatment effect; in addition, due to the strong corrosiveness of alkali slag, it will corrode and thin the conveying equipment and storage tanks, causing potential safety hazards and greatly increasing the operating cost of treatment. ...

Claims

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Application Information

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IPC IPC(8): C02F9/14B01D53/18B01D53/00B09B3/00C02F101/30
CPCB01D53/00B01D53/18B09B3/00C02F1/24C02F1/52C02F1/66C02F1/72C02F3/02C02F3/28C02F9/00C02F2001/007C02F2101/30C02F2209/08Y02E50/30
Inventor 宋金忠陈艳哲
Owner 河北玖兆环保科技有限公司
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