Sewage treatment device

Abstract

The invention discloses a sewage treatment device, which comprises a physical filtering unit and a water storage unit. A filter screen layer in the physical filtering unit primarily filters impurities with larger particles and then is connected with a liquid-level-variable sludge activating unit to remove bubbles and particles in sewage, a storage tube is disposed on an outer ring side of the liquid-level-variable sludge activating unit, the liquid-level-variable sludge activating unit is communicated with the top of a microorganism filtering unit provided with a microorganism filter cartridge, the sewage can be purified by the aid of microorganisms, water generated after the sewage is treated by the microorganism filter cartridge is collected to a water storage barrel, accordingly, the sewage is filtered to generate clean filter water, and the filter water is collected to the water storage barrel for standby application.

Description

technical field [0001] The invention relates to a sewage treatment device. Background technique [0002] As water resources become more and more precious today, how to effectively regenerate and recycle water resources is a major issue today. Known sewage treatment plant, see figure 1 As shown, it is the appearance and schematic diagram of Chinese Patent Publication No. 101076498A. The overall water filter device 10 mainly includes a storage cylinder 11, a filter cylinder 12 and a water storage tank 13. The storage cylinder 11 can be stored in advance. After the sewage, the water is discharged into the filter cartridge 12 by the water inlet pipe 111 for filtration. The filter cartridge 12 contains an active particle layer 121 and a sand layer 122. The water in the storage cylinder 11 first passes through the active particle layer 121 to make the inside After the microorganisms in the water can absorb impurities in the water, water with smaller molecules can penetrate the s...

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Problems solved by technology

[0003] However, in the conventional water filter device 10, the active particle layer 121 needs to be constantly stirred during the filtration process to obtain a better adsorption effect, and the microbial action of the active particles needs to be replaced after a period of use. , although the sand layer 122 can isolate the impurities, the impurities will remain on the top of the sand layer 122 and cause blockage. After a long time, the sand layer 122 will be blocked and the water will not pass through. At this time, it is necessary to start the water pump in the water storage tank 13. The filtered water is pressurized and passed through the pressurized pipe 14 to flush the water back into the filter cartridge 12 to disturb the sand layer 122, so that the sand layer 122 can return to the effect of filtering

In addition, after the sand layer 122 has been washed many times, the sand particles will gradually decrease, and it needs to be replenished regularly, or even replaced, and the filtered water needs to be used for cleaning, which will reduce the efficiency of filtering sewage as a whole.

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