Industrial wastewater treatment method

Abstract

The invention discloses an industrial wastewater treatment method. The industrial wastewater treatment method comprises the following steps: discharging industrial wastewater into a grille well through wastewater pretreatment, filtering large-particle suspended matters in the wastewater through the grille well, and enabling the wastewater to automatically flow into a regulating pond; lifting the wastewater in the regulating pond into a first-stage anaerobic reaction pond by using a pump, carrying out first-stage hydrolysis treatment on the wastewater, enabling the wastewater after the hydrolysis treatment to automatically flow into an intermediate pond, balancing the water quality and the water quantity, and then lifting the wastewater into a second-stage anaerobic reaction pond for carrying out second-stage hydrolysis treatment by using the pump; enabling effluent after the hydrolysis treatment of the second-stage anaerobic reaction pond to automatically flow into a secondary sedimentation pond for carrying out sludge-water separation, enabling effluent of the secondary sedimentation pond to enter a contact oxidation pond, and fully stirring and mixing the wastewater with air under the action of blast aeration and oxygenation; carrying out the sludge-water separation on effluent of the contact oxidation pond through a final sedimentation pond, enabling effluent of the final sedimentation pond to automatically flow into a carbon filter pond, and discharging standardized water. According to the industrial wastewater treatment method disclosed by the invention, the wastewatercan be heated through vapor by adopting the regulating pond, so that the hydrolytic acidification reaction speed of the wastewater in wastewater anaerobic hydrolysis treatment can be increased, and the hydrolytic acidification speed of the wastewater can be faster and more sufficient.

Description

technical field [0001] The invention relates to the technical field of wastewater treatment, in particular to a method for treating industrial wastewater. Background technique [0002] With the rapid development of urbanization and modern industry, the discharge of various types of industrial wastewater is increasing. Due to the pressure of the ecological environment, various wastewater treatment processes have also been developed rapidly. In recent years, with the rapid development of industry and agriculture In particular, the scale of factories producing polyester plastics continues to grow, resulting in an increase in industrial water consumption; at the same time, the corresponding pollution emissions are also increasing year by year, resulting in widespread pollution of water sources and deterioration of water quality. SUMMARY OF THE INVENTION [0003] Aiming at the deficiencies of the prior art, the invention provides an industrial wastewater treatment method with l...

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Problems solved by technology

[0002] With the rapid development of urbanization and modern industry, the discharge of various industrial wastewater is increasing day by day. Due to the pressure of ecological environment, various wastewater treatment processes have also been developed rapidly. In recent years, with the rapid development of industry and agriculture , especially the growing scale of factories producing polyester plastics, has caused an increase in industrial water consumption; at the same time, the corresponding pollution discharge has also increased year by year, resulting in widespread pollution of water sources and deterioration of water quality

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