Method for quickly starting rural domestic sewage treatment device

A domestic sewage and treatment device technology, applied in biological water/sewage treatment, water/sewage multi-stage treatment, water/sludge/sewage treatment, etc., can solve the problem of scattered equipment, complicated operation, and difficult to obtain reagents for nutrients and other problems, to achieve the effect of preventing biomass overload, promoting rapid start-up, and shortening the start-up time

Inactive Publication Date: 2020-06-16
GUANGXI BOSSCO ENVIRONMENTAL PROTECTION TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the start-up time of this method is relatively short, the nutrient (containing medicament stock solution and trace element stock solution) required for start-up involves a variety of chemical reagents, and the equipment is relatively scattered, even in remote mountain villages, it is difficult to obtain the nutrient reagent, and complicated operation

Method used

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  • Method for quickly starting rural domestic sewage treatment device
  • Method for quickly starting rural domestic sewage treatment device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0042] Complete the rural sewage treatment device MCO-B5 purification tank (structure such as figure 2 Shown) engineering installation, clean water test for 24 hours, conduct engineering quality inspection of the equipment, confirm that the equipment shell is intact, each partition is intact, try the fan aeration system, return system, and drain the clean water of the equipment after confirming that the functions are correct. Then add filler to the equipment, the filling rate of anaerobic filler in anoxic zone and anaerobic zone is 60%, and the filling rate of aerobic filler in aerobic zone and nitrification zone is 25%. Using the target treated sewage as the main body, add a certain source of C, N or P to ensure that C:N≥3:1 (COD:TN, mg / L) and TP=1mg / L in the sewage. Bring the prepared sewage into the equipment to the normal water level of its operation, and then stop the water intake. Then inoculate sludge and bacteria in a certain proportion. Among them, the activated sl...

Embodiment 2

[0044] Complete the engineering installation of the MCO-B10 purification tank of the rural sewage treatment device, test the water for 24 hours, conduct an engineering quality inspection of the equipment, confirm that the equipment shell is intact, and each partition is intact, try the fan aeration system and the return system, and confirm that the functions are correct. Drain the clean water from the device. Then add filler to the equipment, the filling rate of anaerobic filler in anoxic zone and anaerobic zone is 60%, and the filling rate of aerobic filler in aerobic zone and nitrification zone is 25%. Using the target treated sewage as the main body, add a certain source of C, N or P to ensure that C:N≥3:1 (COD:TN, mg / L) and TP=3mg / L in the sewage. Bring the prepared sewage into the equipment to the normal water level of its operation, and then stop the water intake. Then inoculate sludge and bacteria in a certain proportion. Among them, the activated sludge of the second...

Embodiment 3

[0046] Complete the engineering installation of the MCO-B3 purification tank of the rural sewage treatment device, test the water for 24 hours, conduct engineering quality inspection on the equipment, confirm that the equipment shell is intact, and each partition is intact, try the fan aeration system and return system, and confirm that the functions are correct. Drain the clean water from the device. Then add filler to the equipment, the filling rate of anaerobic filler in anoxic zone and anaerobic zone is 60%, and the filling rate of aerobic filler in aerobic zone and nitrification zone is 25%. Using the target treated sewage as the main body, add a certain source of C, N or P to ensure that C:N≥3:1 (COD:TN, mg / L) and TP=1.5mg / L in the sewage. Bring the prepared sewage into the equipment to the normal water level of its operation, and then stop the water intake. Then inoculate sludge and bacteria in a certain proportion. Among them, the activated sludge of the secondary se...

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Abstract

The invention discloses a method for quickly starting a rural domestic sewage treatment device. The method comprises the following operation steps: (1) setting sewage treatment equipment into an anoxic zone, an anaerobic zone, an aerobic zone, a nitrification zone and a precipitation separation zone which are sequentially connected from front to back; (2) filling the anoxic zone and the anaerobiczone with anaerobic fillers, and filling the aerobic zone and the nitrification zone with aerobic fillers; (3) controlling the quality of inlet water entering the anoxic zone; (4) inoculating activated sludge in a secondary sedimentation tank into the anoxic zone and the anaerobic zone, inoculating aerobic biochemical sludge into the aerobic zone and the nitrification zone; and (5) adding denitrifying bacteria, deodorizing microbial inoculants and phosphorus removing microbial inoculants into the anoxic zone and the anaerobic zone, adding nitrifying microbial inoculants into the aerobic zone and the nitrification zone, and starting reflux from the anoxic zone and the aerobic zone to the precipitation separation zone. According to the method disclosed by the invention, the starting period of the sewage treatment equipment can be shortened to 7 days, and the treated rural domestic sewage can reach the first-grade B standard of Discharge Standard of Pollutants for Municipal Wastewater Treatment Plant.

Description

technical field [0001] The invention belongs to the technical field of rural point source domestic sewage treatment, in particular to a method for rapidly starting a rural domestic sewage treatment device. Background technique [0002] With the improvement of economy and living standards, the discharge of rural wastewater is gradually increasing, and direct discharge will affect the living environment in rural areas, especially the ecological environment of surface water. In order to ensure the quality of life of rural residents, it is of great significance to purify rural domestic sewage, and it is also an inevitable trend of development. Rural domestic sewage is characterized by relatively scattered residents, complex drainage systems, and even no drainage pipe network in some areas. Therefore, most of the current rural domestic sewage treatment devices use point-source small integrated sewage treatment equipment, and are equipped with different types of integrated purifi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F9/14
CPCC02F3/30C02F1/52C02F3/348
Inventor 陈国宁林宏飞黄海师苏柳宋海农刘熹梁程钧丘能莫文旭郝建勋关荣廷
Owner GUANGXI BOSSCO ENVIRONMENTAL PROTECTION TECH
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