Odor-resistant low-energy-consumption septic tank with three large grids and three small grids

Abstract

The invention discloses an odor-resistant low-energy-consumption septic tank with three large grids and three small grids, which comprises a shell, a water inlet pipeline, a water outlet pipeline, a gas collection port, a gas agitating device, a biogas exhaust pipeline arranged above the shell, an arc-shaped partition plate, an inclined partition plate, a first transverse partition plate, a second transverse partition plate, a third transverse partition plate, a first vertical partition plate and a second vertical partition plate, wherein the interior of the shell is divided into three small grid areas and three large grid areas. According to the invention, the hydraulic retention time of sewage is prolonged, the treatment efficiency of the septic tank is positively promoted, the working efficiency and the treatment capacity of the septic tank are also improved, and most of liquid dung among the three large grids can be in an anaerobic fermentation environment, so that the reaction is more complete, and then the working efficiency and the reaction effect are improved.

Description

technical field [0001] The invention relates to the technical field of septic tanks, in particular to a three-compartment septic tank with deodorization and low energy consumption. Background technique [0002] A septic tank is a facility for purifying sewage containing human and animal feces. It is composed of several units, and the units are connected by pipes or holes. Each processing unit is called a grid. Generally, 2 or 3 grids work in series through connecting holes or pipes. It mainly has 3 functions. 1) Solid-liquid separation is carried out by precipitation, the liquid is discharged after purification, and the solid is retained in the pool. 2) Reduce the concentration of organic matter through anaerobic fermentation. 3) Use anaerobic environment to kill parasite eggs and germs, and finally achieve the purpose of harmless feces. [0003] There are many types of septic tanks on the existing market, and there are the following disadvantages: 1) suspended solids flo...

AI Technical Summary

Problems solved by technology

[0003] There are many kinds of septic tanks on the existing market, and there are the following disadvantages: 1) The suspended solids float on the upper part of the pond, cannot sink to be decomposed, and occupy the effective volume of the septic tank at the same time

2) Due to the complexity of the sewage composition, the communication holes between each grid are easily blocked by foreign matter

3) The generated biogas cannot be collected and utilized, and is directly discharged into the atmosphere to cause air pollution

4) The sludge that has not been completely harmlessly treated at the front end of the septic tank will be transported away together during cleaning, polluting the environment

5) Due to reasons such as the unreasonable internal structure of the septic tank, the treatment efficiency of the actual septic tank is difficult to meet the relevant requirements

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