Traditional sewage deep treatment and recycling technology system for Dalian water treatment equipment.
Release time:
2024-03-30
Water treatment includes physical, chemical, and biological processes. Human water treatment has a long history, with physical methods involving the use of filtering materials with different pore sizes, adsorption or barriers to exclude impurities from water. Activated carbon adsorption is particularly important, and barrier methods use filtering materials to prevent large impurities from passing through, resulting in cleaner water. Additionally, physical methods include sedimentation, which involves removing smaller impurities that float on the water surface or larger impurities that settle below the surface. Chemical methods utilize various chemicals to convert impurities in water into substances that are less harmful to humans or to concentrate the impurities. The oldest chemical treatment method is likely the addition of alum to water. After impurities in the water are collected, their volume increases, allowing them to be removed through filtration.
As the issues of nutrients such as ammonia nitrogen and phosphorus continue to rise in human life, and with the gradual increase in national environmental protection agency wastewater discharge standards, traditional "primary treatment" and "secondary treatment" water treatment technologies and equipment have struggled to meet the demands of today's high turbidity and high concentration wastewater for many years. The treatment process is lengthy, the systems are large, and they also emit a significant amount of odor. To meet the latest discharge standards, operators need to invest heavily to expand the original wastewater treatment systems, increase regional usage, and incur high costs for wastewater treatment equipment and maintenance. However, traditional deep wastewater treatment and recovery technology systems (such as activated carbon filtration, microporous filtration, and membrane purification technology systems) require high investment and have high operational maintenance costs, making them difficult for operators to bear.
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