Micro-system for deep purification of domestic sewage

Abstract

The invention discloses a micro-system for deep purification of domestic sewage comprising a pre-settling tank, a contacting tank, an aeration tank, a water dividing system and an anaerobic treatment tank, wherein the pre-settling tank is provided with two segregation barriers, the contacting tank is filled with formed contacting filtering material CAP, the aeration tank is provided with a water level control pump, the water dividing system comprises a bypass channel and a water distribution pipeline.

Description

technical field [0001] The invention relates to a domestic sewage purification system, in particular to a miniature domestic sewage deep purification system. Background technique [0002] The miniature domestic sewage treatment system has broad application and development prospects due to its advantages of simple installation, broad-spectrum adaptation, and no need for sewage pipelines. However, the system design currently used in the domestic market has the following main problems: [0003] 1. Most of the designs are designed and manufactured for domestic sewage to meet the discharge standards, while my country's requirements for domestic sewage to meet the discharge standards are still relatively low, and most areas do not limit the content of phosphorus and nitrogen, so the effluent of most systems cannot be To meet the requirements of wastewater recycling, these designs are already facing the situation of elimination in today's increasingly scarce water resources. [00...

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Problems solved by technology

[0003] 1. Most of the designs are designed and manufactured for the domestic sewage to meet the standard discharge standards, while the requirements for domestic sewage to meet the standard discharge are still relatively low in most areas. There are no restrictions on the content of phosphorus and nitrogen, so the effluent of most systems cannot To meet the requirements of sewage resource reuse, in today's increasingly scarce water resources, these designs are already facing the situation of being eliminated

[0004] 2. Most of the system designs adopt complete anaerobic treatment without aeration and oxidation, and the removal effect of ammoniacal nitrogen and total nitrogen is poor

[0005] 3. Most of the system filter material is single, and the removal efficiency of pollutants is low, especially the removal effect of phosphorus is poor

[0006] 4. Insufficient carbon source, low C / N, mainly supplied by sewage itself, poor microbial growth and reproduction

[0007] 5. A very small number of advanced treatment systems require fine-grained porous filter materials, and the uncoordinated ventilation regulation can easily cause system blockage and lead to scrapping. In addition, due to the long residence time of sewage in the system, the system processing efficiency is low and occupies The land area is large and the construction price per ton of water is high, so there is little promotion

Although the device adopts the diffusion method of rapid diffusion and step-by-step infiltration, and has an air supply pipe to supply air regularly, it can effectively prevent soil clogging and improve sewage purification capacity, but it does not solve other defects in the prior art.

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