Fluorescent wastewater treatment process.
I. Introduction. Fluorescent wastewater treatment equipment Fluorescent wastewater is mainly used in the production process of dyes, medicine, pesticides and other wastewater. This type of wastewater contains a large amount of fluorescent substances, which have high biological toxicity and chemical stability, and pose a serious threat to the environment and human health. Therefore, how to effectively treat fluorescent wastewater has become an urgent problem to be solved. In this paper, we will introduce an advanced fluorescent wastewater treatment process that aims to achieve the standard discharge and resource utilization of wastewater.
Second, the equipment process.
Conditioning pools. The fluorescent wastewater first enters the regulating tank, and the fluorescent substances in the wastewater are fully dissolved by adjusting the water quality and quantity. The function of the regulating tank is to stabilize the water quality and quantity, and provide good conditions for subsequent treatment.
Coagulation sedimentation tank.
The wastewater passing through the regulating tank enters the coagulation and sedimentation tank, and the suspended solids and colloidal substances in the wastewater are rapidly settled by adding coagulants (such as polyaluminum chloride, aluminum sulfate, etc.). At the same time, through stirring and mixing, the fluorescent substances in the wastewater are fully exposed and condensed into large particles.
Adsorption towers. The wastewater treated by the coagulation sedimentation tank enters the adsorption tower, and the fluorescent substances in the wastewater are adsorbed on the surface of the adsorbent through the adsorption of adsorbents such as activated carbon and diatomaceous earth. The function of the adsorption tower is to further remove the fluorescent substances in the wastewater and improve the water quality.
Oxidation ponds. In the oxidation tank, the organic matter in the wastewater is oxidized and decomposed by adding an appropriate amount of oxidant (such as ozone, sodium hypochlorite, etc.) to the wastewater. The function of the oxidation pond is to reduce the organic matter content in the wastewater and improve the water quality.
Membrane filtration. The wastewater treated by the oxidation pond enters the membrane filtration stage, and through the filtration of ultrafiltration membrane or reverse osmosis membrane, the suspended solids, heavy metals and other pollutants in the wastewater are intercepted, and most of the water molecules are removed at the same time, so that the wastewater is concentrated. The role of membrane filtration is to realize the resource utilization and discharge of wastewater.