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Integrated treatment method for domestic sewage

A domestic sewage and treatment method technology, applied in the direction of biological water/sewage treatment, water/sewage multi-stage treatment, heating water/sewage treatment, etc. Problems such as high construction costs can achieve the effect of avoiding insufficient water for long-distance transportation

Inactive Publication Date: 2020-04-07
BMEI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The problem of domestic sewage treatment in small towns and rural areas has always been a difficult problem in water treatment projects. The difficulty lies in the discreteness of water sources and the unevenness of water quantity and quality, which lead to difficulties in sewage collection and high cost of pipe network construction.

Method used

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  • Integrated treatment method for domestic sewage

Examples

Experimental program
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Effect test

Embodiment 1

[0019] Example 1: An integrated treatment tank for domestic sewage. The internal structure of the tank is designed to reflect the requirements of the water treatment process. For specific layout, refer to figure 1 , figure 2 , image 3 , Figure 4 and Figure 5 As shown in (two-dimensional), for the convenience of transportation and installation, the tank body is designed in the shape of a drum, and the upper end of the external shape of the tank body is equipped with an external pipe connection to introduce incoming water.

[0020] The internal structure of an integrated domestic sewage treatment tank is divided into upper, middle and lower layers, and each layer has different water storage spaces responsible for different process procedures. figure 2 is the top view of the superstructure; image 3 It is a longitudinal section view of the tank body, and the distribution and structural relationship of the three-layer structure can be seen; Figure 4 It is the bottom pla...

Embodiment 2

[0025] Embodiment 2: An integrated treatment method for domestic sewage, controlling intermittent water inflow treatment according to time, comprising the following steps;

[0026] Run the water inlet and outlet process steps, the static process steps, the 1st step of the circulation process, the 1st step of the aeration process, the 2nd step of the circulation process, and the 3rd step of the circulation process plus the 2nd step of the aeration process;

[0027] Water inlet process steps: the water inlet and outlet are controlled by the valve in the vertical pipe, the water inlet overflows the water outlet at the same time, the water inlet is equal to the water outlet, and the water discharged each time accounts for 1 / 2 of the water in the aerobic pool;

[0028]Stand still process steps: when the water inlet valve is closed, the new sewage to be treated will fill the sewage collection chamber, anaerobic zone, aerobic zone and circulating water chamber in turn. Its main functi...

Embodiment 3

[0084] Embodiment 3: a kind of domestic sewage integrated treatment method, contains following steps;

[0085] Intermittent water inflow treatment is controlled according to time, and it operates according to the water inlet and outlet process steps, standing process steps, circulation process 1 step, aeration process 1 step, circulation process 2 steps, and circulation process 3 plus aeration process 2 steps; electronic timing The device is used to control the opening and closing of the equipment and then control the progress of the process steps.

[0086] Step 1. The process of water inflow and outflow includes the process that the electronic timer is turned on at a certain point of the day, and the water inlet valve 10 in the standpipe starts to enter water. At this time, the internal waterway of the tank is connected, and the treated water is discharged from the overflow weir 7 For the tank body, the water intake time is about 10 minutes, and the water intake is about 0.5t...

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Abstract

The invention provides an integrated treatment method for domestic sewage, belonging to the technical field of environmental protection. According to the invention, intermittent water inlet treatmentis realized by virtue of a tank body structure; external sewage firstly enters a sewage collection chamber for scumming and for adjustment of the quantity and quality of inflow water; when a water inlet valve is opened, the inflow water flows to a water distribution system of an anaerobic zone at the bottom of a middle layer through a vertical pipe; water flow upwards passes through sieve plate holes in the bottom from the water distribution system and then enters an aerobic zone at an upper layer; reflux denitrification is carried out by utilizing steam stripping nitrification liquid througha circulating water chamber; the treated sewage is discharged through a water outlet valve; the aerobic zone adopts a contact oxidation mode, and a sludge film falling off from a filler in the aerobiczone can fall into a filler in the anaerobic zone through the sieve plate holes for degradation, so sludge is reduced. The integrated treatment method of the invention solves problems in treatment ofdomestic sewage in small towns, villages and other areas which are not involved in sewage pipe networks; functions are integrated on equipment, and the equipment is constructed and installed on siteand close to a water source to overcome the problems; and difficulties in long-distance transportation due to insufficient water are avoided.

Description

technical field [0001] The invention relates to an integrated treatment method for domestic sewage, which belongs to the technical field of environmental protection. Background technique [0002] The treatment of domestic sewage in small towns and rural areas has always been a difficult problem in water treatment projects. The difficulty lies in the discreteness of water sources and the unevenness of water quantity and quality, which lead to difficulties in sewage collection and high costs for pipe network construction. Contents of the invention [0003] In order to overcome the deficiencies of the prior art, the invention provides an integrated domestic sewage treatment method. [0004] An integrated treatment method for domestic sewage, comprising the following steps: relying on the structure of the tank body to realize intermittent water inflow treatment; external sewage first enters the sewage collection room, skims scum and adjusts the quantity and quality of incoming...

Claims

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Application Information

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IPC IPC(8): C02F9/14
CPCC02F1/04C02F1/40C02F3/301C02F3/302C02F9/00
Inventor 王志刚张勇贺大立董少刚李永华李江伟李江张帅王迁赵云龙冯永鼎
Owner BMEI
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