Domestic wastewater recycling system

Abstract

The invention belongs to the technical field of wastewater treatment and particularly relates to a domestic wastewater recycling system. The system comprises a water inlet pipe, wherein the water inlet pipe is connected with a primary filter device; an annular fixed lantern ring is arranged at the upper part of the inner wall of the primary filter device; a filter string bag is clamped on the annular fixed lantern ring; the bottom of the primary filter device is connected with a water pump through a guide pipe; the water pump is connected with a sedimentation tank through the guide pipe; one side of the sedimentation tank is connected with a desilting pump through a discharge pipe; an outlet of the desilting pump is connected with a fermentation tank; a chemical adding device is arranged at the upper part of the sedimentation tank which is connected with a water storage tank through the guide pipe; a coarse filter screen, a fine filter screen, an oil-water separator and an activated carbon layer are arranged in the water storage tank; a water outlet pipe is arranged at the bottom of one side of the water storage tank. The domestic wastewater recycling system has the advantages of being simple in structure and convenient to use.

Description

technical field [0001] The invention belongs to the technical field of waste water treatment, and in particular relates to a domestic waste water recovery and reuse system. Background technique [0002] Water is an indispensable basic substance for all life on earth, and only with water can there be life. Although the water reserves on the earth are large, fresh water only accounts for 2.5% of the global water reserves, most of which are still distributed in the ice, snow and permafrost of the two-level and high mountains, which are difficult to use, and only 30.4% of them can be used . According to statistics, there are more than 80 countries in the world today, with more than 2 billion people facing a fresh water crisis, of which more than 300 million people in 26 countries live in a state of water shortage, and China is also a country with serious water shortage. It is only per capita in the world, and the water consumption is constantly increasing. According to researc...

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Problems solved by technology

Generally speaking, a person needs to urinate 4 to 6 times a day and defecate once every 1 to 3 days. The domestic water used by a person to flush the urinal is roughly 0.04m 3 In many cases, most of the washbasins in the family and the wastewater flowing out after bathing are directly discharged into the sewer pipes, which are not fully utilized, which not only increases the workload of the sewage treatment unit, but also increases the primary investment cost. It also increases energy consumption. Consumption, more importantly, wasting precious water resources, but also causing economic losses to residents

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