Abstract
ABSTRACT A large amount of sewage will be produced in daily life and production activities, and the sewage contains heavy metal elements. If it is directly discharged into the environment, it will be transferred to the human body because of enrichment, leading to various diseases. Therefore, the sewage should only be discharged after it is treated. This article briefly introduces the conventional treatment methods for wastewater with excessive heavy metals and the traditional treatment process for urban wastewater and uses reverse osmosis technology to improve the treatment effect of heavy metal pollution. Finally, an example of sewage treatment plant X, located in Hohhot, Inner Mongolia, China, was analyzed. The results show that the traditional treatment process was poor in treating the sewage, with excessive heavy metals caused by industrialization, but the improved treatment process combined with reverse osmosis technology effectively reduced the content of heavy metals in the sewage. With regard the soil environment after the discharge of the sewage with excessive heavy metals caused by industrialization, the degree of soil pollution increased, but the degree of soil pollution decreased to “clean” after applying the improved treatment technology. In conclusion, adding reverse osmosis technology to traditional sewage treatment can effectively remove heavy metal pollution in sewage, reducing the pollution to the environment.
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