Deodorization method in treatment of printing and dyeing wastewater

Abstract

The invention discloses a deodorization method in treatment of printing and dyeing wastewater, which comprises the following steps of: treating the printing and dyeing wastewater by an adjusting pool, an acidification pool and an oxidation pool in sequence; and at the same time of treating the printing and dyeing wastewater, dripping composite microbial liquid in the front end of the adjusting pool and the front end of the acidification pool respectively, and dripping another composite microbial liquid in the front end of the oxidation pool, wherein viable bacteria in the composite microbial liquid at least comprise bacteriophagic Bdellovibrio, photosynthetic bacteria group, lactic acid bacteria group, yeast group, Gram-positive bacteria Actinomyces series, filamentous bacteria group of fermentation series; and the viable bacteria in the another composite microbial liquid at least comprise bacteriophagic Bdellovibrio, red yeast group, photosynthetic bacteria group, lactic acid bacteria group, yeast group, Gram-positive bacteria Actinomyces series, filamentous bacteria group of fermentation series. The deodorization method disclosed by the invention is used for deodorizing while the sewage is treated, so that the treatment cost is lowered, the sewage treatment time is shortened, the deodorization working efficiency is improved, and good treatment effect is achieved.

Description

technical field [0001] The invention relates to a sewage treatment method, in particular to a deodorization method in the treatment of printing and dyeing wastewater. Background technique [0002] The content of sulfate in printing and dyeing wastewater is very high, and a large amount of odorous gas is likely to be generated during the treatment process. This odor mainly includes rotten egg odor, ammonia odor and the special odor of printing and dyeing wastewater. [0003] At present, many enterprises use printing and dyeing wastewater as a desulfurizer in the process of coal-fired flue gas desulfurization, and use alkaline substances in printing and dyeing wastewater to absorb sulfur dioxide to achieve flue gas desulfurization and reduce the pH value of printing and dyeing wastewater. The treated printing and dyeing wastewater becomes desulfurization Dyeing Wastewater. During the treatment of desulfurization printing and dyeing wastewater, the PH value does not drop to ac...

AI Technical Summary

Problems solved by technology

Therefore, the soil deodorization method has the following problems: 1. The odor treatment project needs to increase the project floor area, which aggravates the tense situation of the current industrial land, and the soil deodorization method also needs to carry out the existing sewage treatment facilities Larger-scale transformation will undoubtedly increase the cost of production and operation for most enterprises; 2. The southeast coastal areas are densely populated, with developed industries and commerce, and are also the most polluted areas in the country. The odor generated during sewage treatment seriously affects The local environment, but the southeast coastal areas are often affected by severe weather such as typhoons, storms, etc., the effect of soil deodorization method has been restricted to a certain extent

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