Wastewater treatment can be divided into domestic wastewater treatment and industrial wastewater treatment. Compared to industrial wastewater treatment, domestic wastewater is relatively simple because the quality and quantity of domestic wastewater, as well as the substances contained in it, are relatively simple and stable. However, industrial wastewater contains complex and difficult to degrade toxic and harmful components, which to some extent increases the difficulty of treatment. Today, the editor will take you to understand the difference between industrial wastewater treatment and domestic wastewater treatment.

Industrial wastewater treatment

The industrial development in our country has reached a certain level, and the role of the industry in promoting the economy is obvious. However, it also brings certain problems, which are the problems of industrial wastewater treatment. In order to achieve standard discharge, production enterprises need industrial wastewater treatment solutions

Industrial wastewater treatment mainly targets chemicals that seriously affect the environment, as well as the discharged waste liquid, for comprehensive filtration. In addition to sediment and grid residue, biological sludge is very important. Excessive sedimentation is difficult to treat, and its water content is extremely high, occupying most of the space in the sewage tank. Therefore, priority should be given to treating this part of the waste.

However, the organic matter content in industrial sludge is too high, and if placed for a slightly longer period of time, it is prone to spoilage. Failure to handle it in a timely manner can cause secondary pollution, and the pungent odor produced can also affect the surrounding environment. In addition, the floating of industrial sludge can disrupt the normal operation of sedimentation tanks, leading to deterioration of water quality. To prevent these phenomena, it is necessary to ensure the stable operation of industrial wastewater treatment plants every day.

Domestic sewage treatment

The main purpose of domestic sewage treatment is to remove COD organic matter from water. Currently, the main methods are biological methods and the use of microorganisms in activated sludge for degradation. This is a relatively economical and compatible sewage treatment process, which mainly judges the water quality, quantity, and different environmental conditions of domestic sewage to select a sewage treatment process that has a profound impact on investment and operating costs.

Compared to the complex operations of industrial wastewater treatment, domestic wastewater treatment mainly focuses on the biochemical part, which is also commonly referred to as treatment processes, such as contact oxidation, SBR, A/O, and so on. These processes each have their own characteristics and advantages, among which the use of biochemical methods, including anaerobic and aerobic methods, to treat domestic sewage is currently a relatively economical and applicable domestic sewage treatment process. It needs to determine the choice of process based on the amount and quality of sewage, as well as the on-site conditions, as well as investment and operating costs, which also plays a decisive role.

In short, both domestic and industrial wastewater treatment have their unique aspects and cannot be confused. After all, industrial wastewater has complex components, high pollution levels, and higher difficulty in treatment. However, this does not mean that domestic sewage is easy to treat. Currently, there are still many areas in China where the sewage treatment capacity is not yet perfect, and there is still considerable room for improvement. When using different methods and processes, it is necessary to combine analysis with on-site conditions and construction costs. Only in this way can a more reasonable method be found, otherwise it is difficult to achieve the desired effect.

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