Three-dimensional pulse type electrochemical laundry wastewater reuse device

Abstract

The invention provides a three-dimensional pulse type electrochemical laundry wastewater reuse device, which is mainly composed of a pulse power supply, multiple sets of three-dimensional electrode plates, a slag scraping apparatus, a sludge discharging apparatus and a filtration apparatus. Laundry wastewater flows into the device, and is degraded by the pulsed three-dimensional electrode electrochemical technology, and at the same time slag scraping is carried out at the top; at the end of the electrochemical reaction, a water outlet valve is opened and a water outlet pump is started, under the action of negative pressure suction, the purified laundry wastewater flows into the filtration apparatus, and residual flocculent suspended matters in the water can be removed, and finally a sludgedischarge valve is opened to discharge the sludge precipitate at the bottom of the box. The device provided by the invention combines pulsed electrochemistry and three-dimensional electrode technology, can effectively remove surfactant and other pollutants from laundry wastewater to meet the reuse requirements of laundry wastewater, and improves the effluent water quality, achieve wastewater reuse, and extends the service life of pole plates.

Description

technical field [0001] The invention relates to a laundry wastewater purification and recycling device, in particular to a three-dimensional electrode pulse type electrochemical laundry wastewater recycling device. Background technique [0002] With the improvement of living standards, washing machines have been popularized in millions of households, and a large amount of laundry wastewater is produced every year, and this type of wastewater contains many pollutants, including a large amount of anionic surfactants. At present, most washing wastewater is directly discharged into the municipal pipe network without treatment or reuse, resulting in serious deterioration of the water environment; moreover, my country's water resources are relatively scarce, and only energy saving and emission reduction can improve this severe situation from the source . At present, there are many treatment methods for laundry wastewater, but at the same time, there are inevitable shortcomings. Fo...

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Problems solved by technology

[0005] Electrochemical technology has the advantages of fast response time, compact structure, and convenient operation. However, for laundry wastewater with high content of anionic surfactant (LAS) and turbidity, the electrode passivation phenomenon of this type of technology is relatively serious during use. The formed oxide film reduces the treatment efficiency; and as the reaction progresses, the loss of the anode plate increases the cost of the equipment. In addition, the electrochemical technology will produce a large amount of scum and sludge in the process of purifying the laundry wastewater. There is still a certain amount of flocculent suspended matter in the water after treatment

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