Method and device for removing pollutants in water

Abstract

The invention discloses a method and a device for removing pollutants in water. The method and the device have the following advantages: (1) anthracite is fully used, and is changed into valuables from wastes; (2) denitrifying bacteria have a strong removal effect on nitrogen, and are immobilized on anthracite particles to perform nitrification and denitrification in order to convert nitrogen in the water into N2, so the purpose of nitrogen removal is achieved, nitrogen precipitation is avoided, and a good effect for removing nitrogen from the water is achieved; and (3) a thickness ratio of one cobblestone layer to one quartz sand layer to one cobblestone layer to one quartz sand layer, a nano-seashell powder layer to an anthracite layer to an activated carbon layer to a loofah sponge layer to a cactus layer is set to be 8:3:7:4:1:3:2:4:12. The reasonable arrangement of above layers realizes porous adsorption and other physical adsorptions and chemical removal, and makes heavy metals,nitrogen, phosphorus and other harmful substances in the water effectively removed.

Description

technical field [0001] The invention belongs to the field of sewage treatment, and in particular relates to a method and a device for removing pollutants in water bodies. Background technique [0002] With the rapid development of urbanization in my country, problems such as urban water quality deterioration and floods caused by rainwater have become increasingly prominent. Existing studies have shown that non-point source pollution brought by urban runoff rainwater has become the main source of urban water pollution. According to statistics, more than 90% of my country's urban water bodies are seriously polluted, and many urban water bodies have the phenomenon of black odor or eutrophication. The pollution of surface water also leads to serious pollution of groundwater. Pollutants in groundwater drinking water mainly include nitrogen, COD, TN, TP, heavy metals, polycyclic aromatic hydrocarbons (PAHs), nutrients, etc. [0003] Long-term reference to polluted water quality ...

AI Technical Summary

Problems solved by technology

[0010] Aiming at the problem of poor removal of heavy metals, nitrogen, and phosphorus in the prior art, the present invention provides a method and device for removing pollutants in water bodies, which uses fillers, which can efficiently remove nitrogen, nitrogen, and phosphorus in runoff water. Phosphorus, COD, TN, TP, heavy metals, nutrient salts and other pollutants, through the cooperation between different fillers, combined with the processes of interception, adsorption, nitrification and denitrification, establish a synchronous and efficient removal of nitrogen in runoff water. Heavy metal method, providing applied technology for water purification

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