Industrial wastewater recycling device

Abstract

The invention relates to an industrial wastewater recycling device, which comprises a wastewater pipe, a heat energy exchange device and a cold water tank, wherein a wastewater control valve is arranged on the wastewater pipe; a heating pipe is arranged in the heat energy exchange device; one end of the heating pipe is connected with the cold water tank through a water outlet pipe; the other end of the heating pipe is connected with the cold water tank through a water inlet pipe; a circulating pump is arranged on the water outlet pipe; the lower end of the heat energy exchange device is connected with a drain pipe I; a stop valve is arranged at the upper end of the drain pipe I; a filtering device and a cooling device are sequentially arranged in the drain pipe I from top to bottom; one lower end of the drain pipe is connected with a sewage treatment tank; the inside of the sewage treatment tank is divided into an anaerobic chamber, an aerobic chamber and a sterilizing room through two layers of partition nets from top to bottom; and the lower end of the sewage treatment tank is connected with a drain pipe II. The industrial wastewater recycling device is good in heat exchange treatment effect; wastewater can be reutilized; and resources are saved.

Description

technical field [0001] The invention relates to an industrial wastewater recycling device, which belongs to the technical field of energy-saving devices. Background technique [0002] Wastewater refers to the general term for water discharged from residents' activities and runoff rainwater. It includes domestic sewage, industrial wastewater, and other useless water such as primary rainwater that flows into drainage pipes and canals. It generally refers to water that cannot be recycled after certain technical treatment or that is difficult to purify after primary pollution and cannot meet a certain standard. [0003] China is one of the most water-polluted countries in the world, with up to 70 percent of the country's rivers, lakes and reservoirs affected. A national survey showed that nearly 20 percent of the organic pollutants (expressed as chemical oxygen demand) discharged into various water bodies in 2007 originated from industry. These factories pollute vital water re...

AI Technical Summary

Problems solved by technology

[0005] 1. Industrial wastewater flows directly into channels, rivers, and lakes to pollute surface water. If it is highly toxic, it will lead to the death or even extinction of aquatic animals and plants. Industrial wastewater may also seep into groundwater and pollute groundwater;

[0006] 2. If the surrounding residents use polluted surface water or groundwater as domestic water, it will endanger their health and even cause death;

[0007] 3. Industrial wastewater infiltrates into the soil, causing soil pollut...

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