Sludge treatment system and method

A sludge treatment and sludge technology, applied in the direction of sludge treatment, biological sludge treatment, water/sludge/sewage treatment, etc., can solve the problem of low organic matter content, affecting the gas production rate of anaerobic fermentation, carbon dioxide in the anaerobic stage, etc. Insufficient source and other problems, to improve the separation performance and reduce the amount of chemicals

Active Publication Date: 2021-05-07
AWS ENVIRONMENT TECH LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the sludge breaking technology and input cost are high, and the organic matter content in the sludge is low, which will lead to insufficient carbon source in the anaerobic stage, which will affect the gas production rate of anaerobic fermentation

Method used

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  • Sludge treatment system and method
  • Sludge treatment system and method

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0068] This embodiment provides a sludge treatment system, such as figure 1 shown, including:

[0069] Sludge screening device 1 is connected to the secondary sedimentation tank of the sewage plant, and is used to screen large particles of sludge, plastics and other flocs;

[0070] The sludge conditioning device 2 is equipped with a dosing and stirring device 3 which is connected to the sludge screening device for sludge conditioning;

[0071] The sludge thickening device 4 is connected with the sludge outlet of the sludge conditioning device for sludge thickening;

[0072] The acidification device 5 is equipped with a stirring device 6 and is connected to the sludge screening device and the sludge thickening device for acidification of the sludge;

[0073] The sediment separation device 7 is equipped with a magnesium salt dosing device 8, which is connected to the acidification device for the separation of sludge and sand.

[0074] Preferably, the sludge screening device i...

Embodiment 2

[0080] This embodiment provides a sludge treatment system, such as figure 1 shown, including:

[0081] Sludge screening device 1 is connected to the secondary sedimentation tank of the sewage plant, and is used to screen large particles of sludge, plastics and other flocs;

[0082] The sludge conditioning device 2 is equipped with a dosing and stirring device 3 which is connected to the sludge screening device for sludge conditioning;

[0083] The sludge thickening device 4 is connected with the sludge outlet of the sludge conditioning device for sludge thickening;

[0084] The acidification device 5 is equipped with a stirring device 6 and is connected to the sludge screening device and the sludge thickening device for acidification of the sludge;

[0085] The sediment separation device 7 is equipped with a magnesium salt dosing device 8, which is connected to the acidification device for the separation of sludge and sand.

[0086] Preferably, the sludge screening device i...

Embodiment 3

[0092] This embodiment provides a sludge treatment system, such as figure 1 shown, including:

[0093] The sludge screening device 1 is connected to the secondary sedimentation tank of the sewage treatment plant, and is used to screen large particles of sand, plastics and other flocs in the sludge;

[0094] The sludge conditioning device 2 is equipped with a dosing and stirring device 3 which is connected to the sludge screening device for sludge conditioning;

[0095] The sludge thickening device 4 is connected with the sludge outlet of the sludge conditioning device for sludge thickening;

[0096] The acidification device 5 is equipped with a stirring device 6 and is connected to the sludge screening device and the sludge thickening device for acidification of the sludge;

[0097] The sediment separation device 7 is equipped with a magnesium salt dosing device 8, which is connected to the acidification device for the separation of sludge and sand.

[0098] Preferably, the...

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Abstract

The invention provides a sludge treatment system and method, and belongs to the technical field of sludge treatment. The sludge treatment system comprises a sludge screening device, a sludge conditioning device, a sludge concentration device, an acidification device and a silt separation device. Sludge of a sewage plant is subjected to screening, hardening and tempering, concentration, acidification, silt separation and other processes, silt is separated from the sludge, the combustion heat value of the sludge is increased, and reduction and recycling of the sludge are achieved.

Description

technical field [0001] The invention relates to a sludge treatment system and method, belonging to the technical field of sludge treatment. Background technique [0002] With the development of my country's industrialization and the improvement of people's living standards, the nitrogen and phosphorus content in sewage continues to rise, resulting in a decrease in the carbon-nitrogen ratio of the influent in the sewage treatment process, which affects the biological denitrification and phosphorus removal effect of sewage and the effluent quality. . The sewage collection area of ​​sewage treatment plants in many parts of my country is small, and the rain and sewage are not diverted in some areas, resulting in low organic matter content and relatively high sediment content in the sludge generated in the sewage treatment process, which limits the development of sludge treatment technology. and resource utilization. However, the phenomenon of insufficient carbon source in sewage...

Claims

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Application Information

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IPC IPC(8): C02F11/04C02F11/121C02F11/127C02F11/143C02F11/145C02F11/00
CPCC02F11/04C02F11/00C02F11/121C02F11/127C02F11/143C02F11/145C02F2303/24C02F2305/14C02F2303/06
Inventor 不公告发明人
Owner AWS ENVIRONMENT TECH LTD
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