Wastewater sedimentation basin and wastewater treatment method

Abstract

The invention discloses a wastewater sedimentation basin and a wastewater treatment method. The wastewater sedimentation basin includes a wastewater treatment tank, a water inlet pipe and a water outlet pipe that are communicated with the space inside the wastewater treatment tank, and also includes at least two partition plates. The water inlet pipe and the water outlet pipe are respectively arranged on two opposite side walls of the wastewater treatment tank, the partition plates are sequentially disposed in the space between the water inlet pipe and the water outlet pipe in the tank, and divide the space inside the wastewater treatment tank into at least three water troughs. The partition plates are equipped with overflow ports, and the overflow ports of two adjacent partition plates are staggered, and the overflow ports are internally equipped with a filter device. The wastewater sedimentation basin and the wastewater treatment method provided by the invention can remove most of the suspended oil stains and solid particle impurities in industrial wastewater, and without considering other environmental protection factors, the treated industrial wastewater can be discharged directly.

Description

technical field [0001] The invention relates to the technical field of industrial wastewater treatment, in particular to a wastewater sedimentation tank and a wastewater treatment method. Background technique [0002] In industrial production processes such as plate production, mechanical processing, and electronic product manufacturing, a large amount of industrial wastewater containing solid particle impurities and oily suspended matter will be produced. If the industrial wastewater with oil pollution is discharged into the water body, the oil pollution will cover the water surface and prevent the oxygen in the air from dissolving into the water. The low oxygen content in the water body will hinder the photosynthesis of aquatic plants and cause the death of aquatic animals due to hypoxia. When oily wastewater enters the soil, under the action of soil adsorption and filtration, an oil film layer will be formed in the soil, making it difficult for the air to penetrate deeper...

AI Technical Summary

Problems solved by technology

Industrial wastewater contains a large amount of solid particle impurities. If it is directly treated with existing water treatment equipment, it will easily cause high-cost filter elements and filter membranes to be blocked, as well as cause corrosion and scaling of equipment and packing, which will not only affect the industry. The subsequent treatment of wastewater will also greatly reduce the service life of water treatment equipment

At present, the treatment of a large amount of solid particle impurities in wastewater mainly adopts the technical scheme of discharging sewage into the sewage tank for sedimentation treatment, but the sewage treatment volume of this scheme is small, and the sewage treatment efficiency is low, so it is not suitable for the treatment of a large amount of industrial wastewater.

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