High-concentration organic wastewater treatment process

Abstract

The invention discloses a high-concentration organic wastewater treatment process, and relates to the technical field of wastewater treatment. The high-concentration organic wastewater treatment process comprises primary degradation, secondary degradation, tertiary degradation and the like. The primary degradation pool and the secondary degradation pool are separated by using a Nafion membrane, one end of an ultrafiltration membrane of the tertiary degradation pool is connected with a carbon nanotube filter body of the primary degradation pool, and the other end of the ultrafiltration membrane of the tertiary degradation pool is connected with a carbon nanotube filter body of the secondary degradation pool by using a lead; in the primary degradation, a carbon nanotube filter body is used for assisting anaerobic bacteria degradation, in the secondary degradation, aeration is used for assisting the carbon nanotube filter body degradation, and in the third degradation, an ultrafiltration membrane is used for degradation; the carbon nano tube filter body is prepared from dipentanedione isopentyl glycol, lactic acid and a functionalized carbon nano tube; the ultrafiltration membrane is prepared by modifying poly (3-amino-4-carbonyl hexenoic acid) with bis (3-carbonyl ethyl butyrate) diformaldoxy silane, and the ultrafiltration membrane is prepared from poly (3-amino-4-carbonyl hexenoic acid); the high-concentration organic wastewater treatment process is high in bactericidal activity, and the COD value and the heavy metal ion content of the treated organic wastewater are relatively low.

Description

technical field [0001] The invention relates to the technical field of wastewater treatment, in particular to a high-concentration organic wastewater treatment process. Background technique [0002] my country is the largest country in the world's textile industry, and printing and dyeing is a traditional characteristic industry in our country. After my country's accession to WTO, textile dyeing and finishing has become a profitable industry, and its scale has developed very rapidly in recent years. With the large-scale rise of the printing and dyeing industry, on the one hand, it has promoted the vigorous development of the textile printing and dyeing industry, and on the other hand, the pollution caused by printing and dyeing wastewater has become increasingly prominent with the expansion of the industrial scale. At present, the printing and dyeing industry has become a large discharge of industrial wastewater. [0003] High-concentration organic wastewater will be produ...

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Problems solved by technology

[0003] High-concentration organic wastewater will be produced in the production process of textile printing and dyeing. The pollution index of this wastewater, such as chroma, suspended solids concentration, COD chemical oxygen demand, heavy metal content, and total number of bacteria, is very high. , more difficult to deal with

Usually, the treatment of printing and dyeing wastewater adopts biochemical methods, but the treatment effect is often not ideal in the actual operation process.

The main reason is that due to the change of the type of dyeing, the components of the discharged wastewater have changed greatly, and the water volume of the wastewater has also changed greatly, and the additives used in some production processes are not conducive to the growth of biological reaction bacteria, so It is difficult to fully meet the emission standards by using biological treatment methods

Other biochemical methods that have been adopted often cannot solve the contradiction between the treatment effect and the treatment cost due to the single treatment technology

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