With the rapid development of industry, industrial wastewater has become one of the main environmental pollution. In order to protect the environment and improve the efficiency of water use, industrial wastewater treatment has become an important task. This article will introduce an industrial wastewater treatment solution and illustrate the main problems encountered in the field and how to solve them through a real-world case.
1. Case introduction
A chemical plant is a dye production enterprise, and its wastewater has the characteristics of high COD, high color, and high salt content. In order to solve the wastewater treatment problem of the plant, find our company and provide solutions according to the situation of the plant.
2. Solutions and implementation measures
In response to the above problems, the engineer proposed a set of comprehensive wastewater treatment scheme, and the specific implementation measures are as follows:
1. Pretreatment: The method of air flotation and sedimentation is used to remove suspended solids and grease in wastewater. At the same time, through the study of acidification, the pH value of the enterprise wastewater can be reduced, which creates a good environment for the subsequent biotechnology treatment of students.
2. Biological treatment: Activated sludge method is used for biological treatment. By adjusting the aeration time and sludge return ratio, the wastewater treatment efficiency was successfully improved. At the same time, through the addition of nutrients and trace elements, the metabolic ability of microorganisms is enhanced.
3. Advanced treatment: Activated carbon adsorption and reverse osmosis are used for advanced treatment. Activated carbon adsorption effectively removes color and organic matter from wastewater, and reverse osmosis technology removes most of the salts.
Three, effectiveness comparison and data analysis
After the treatment of the above-mentioned treatment process, the main indicators of the plant's wastewater have been significantly adjusted. Here's how it compares before and after processing:
1. COD removal rate: after pretreatment, the COD value is reduced by 60, after biotechnology treatment, it is reduced by 80, and finally it can be reduced by 90% after deep information processing.
2. Chromaticity removal rate: the chromaticity is reduced by 50% after pretreatment, 70% after biological treatment, and 90% after deep treatment.
3. Salt content removal rate: the salt content is reduced by 30% after pretreatment, 50% after biological treatment, and 80% after advanced treatment.
Through the comparison of results and data analysis, through the industrial wastewater treatment solutions provided by the engineers, we found that the wastewater treatment project of the chemical plant has achieved remarkable results, and the indicators meet the discharge standards.