A device for purifying and reusing bath wastewater

Abstract

The invention discloses a purifying and reusing device of bathing waste water. The purifying and reusing device comprises a filtering unit, a water collecting container, a membrane treating unit, an ultraviolet disinfecting unit, a water discharging unit and a control unit, wherein the membrane treating unit comprises the water collecting container, a first membrane component, an aeration unit and an electrolysis unit; an exhausting pipe and an overflowing valve are arranged at the neck part of the water collecting container, and a deslagging valve is arranged at the bottom of the water collecting container; the water discharging unit comprises a vacuum meter, a water discharging pump, a pressure meter and water feeding pipelines which are connected in sequence; and one water feeding pipeline is communicated with a pedestal pan by a water feeding valve, and the other water feeding pipeline is communicated with a domestic-water pipeline by a second water feeding valve. The purifying and reusing device disclosed by the invention has the advantages that the bathing waste water can be conveniently used for flushing the toilet, sweeping and watering flowers according to the need, also can be used as reused water for washing clothes and bathing with high water-quality requirement, chemical agents do not need to be added, the automation degree is high, artificial management is not needed, near treatment can be achieved, and a special reusing-water pipe is not needed, so that the purifying and reusing device is especially suitable for being used by families, school dormitories and hotels.

Description

technical field [0001] The invention relates to the technical field of water treatment, in particular to a device for purifying and recycling bath wastewater. Background technique [0002] Bathing wastewater is one of the main sources of domestic sewage. Bathing wastewater has the characteristics of large water volume, light pollution, and stable water quality. Therefore, bathing wastewater should be developed as a reused water source, and it will play an important role in urban water conservation. At present, in rural areas, most of the bathing water is used once and discharged directly; in cities, some communities will set up a general waste water recovery device for unified treatment, but the requirements for equipment are relatively high, the cost is high, and additional laying of waste water is required. water pipe. [0003] At present, water treatment methods include physical and chemical methods (such as air flotation treatment, coagulation treatment, electrolysis t...

AI Technical Summary

Problems solved by technology

At present, in rural areas, most of the bathing water is used once and discharged directly; in cities, some communities will set up a general waste water recovery device for unified treatment, but the requirements for equipment are relatively high, the cost is high, and additional laying of waste water is required. water pipe

[0003] At present, water treatment methods include physical and chemical methods (such as air flotation treatment, coagulation treatment, electrolysis treatment, electrocoagulation air flotation combined treatment, activated carbon treatment, ozone oxidation treatment, membrane treatment, etc.), biological methods (microbial treatment, membrane bioreactor, filtration / ultrafiltration-biological activated carbon combination), the above methods have their own advantages and disadvantages, and can be selected according to the requirements of water quality, but these methods are generally used to uniformly treat large quantities of bathing wastewater , and then centralized reuse. On the one hand, the equipment and site requirements are high, and the cost is relatively high. On the other hand, the treatment method of bath water cannot be flexibly changed according to people's requirements for water quality. The purpose is single, and for some treatment methods, Human management is required to replace the treatment agent. If it is not properly managed, it will cause foul smell in the water quality and affect the environment.

At the same time, for individual families, independent hotels, hospitals and other units, especially for the vast number of rural families, bathing wastewater treatment devices with high construction costs and high maintenance costs often dispel the motivation of the masses to recycle bathing wastewater

Patent CN1460753 discloses a household bath wastewater recycling system, patent CN201746897U discloses a bath wastewater reuse device, and patent CN103790214A discloses a toilet flushing device for recycling bath wastewater. Direct reuse for flushing toilets, etc., the water quality is poor, and it is easy to produce peculiar smell; patent CN100503993C discloses a comprehensive recycling equipment and method for hotel bathing wastewater treatment, the equipment uses fiber ball filters, ultrafiltration membrane components, nano Membrane components, disinfection tanks, security filter elements and other devices, the fiber ball filter needs to be added with micro flocculants, which is difficult to maintain, high in cost, not suitable for home use, and needs to lay water return pipes, and also needs to add chemical reagents when cleaning Cleaning is complicated

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