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Domestic sewage treatment method and UAFB-EGSB coupled system quick start method

A UAFB-EGSB, 1.UAFB-EGSB technology is applied in the field of sewage treatment to achieve the effects of not easy secondary pollution, low output, and reduced water treatment costs

Active Publication Date: 2014-02-26
BEIJING UNIV OF CIVIL ENG & ARCHITECTURE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] The present invention aims to solve the problems of various deficiencies in the current domestic sewage treatment methods, and provides a treatment method superior to the existing domestic sewage treatment effect

Method used

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  • Domestic sewage treatment method and UAFB-EGSB coupled system quick start method

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specific Embodiment approach 1

[0033] Specific implementation mode one: combine figure 1 Describe this implementation mode, the UAFB-EGSB coupling system of this implementation mode performs the quick start according to the following steps:

[0034] 1. The UAFB reactor 3 is connected with the EGSB reactor 4, and the outlet water of the UAFB reactor is the inlet water of the EGSB reactor;

[0035] 2. Add anaerobic digestion sludge to UAFB reactor 3, and add AOB-ANAMMOX granular sludge to EGSB reactor 4;

[0036] 3. In the first stage of starting, the mixed sewage of simulated domestic sewage and actual domestic sewage is introduced into the UAFB-EGSB coupling system. The ratio of simulated domestic sewage to actual domestic sewage is 100%-n5%:n5%, and n is the first to start number of days to run the stage;

[0037] 4. Start the second stage, feed the actual domestic sewage into the UAFB-EGSB coupling system, and start the second stage for 7 to 9 days; that is, complete the quick start of the UAFB-EGSB cou...

specific Embodiment approach 2

[0056] Embodiment 2: The difference between this embodiment and Embodiment 1 is that the effective volume of the UAFB reactor 3 in step 2 is 2.55 L, and the amount of anaerobic digested sludge added is 300-450 mL. Other steps and parameters are the same as those in Embodiment 1.

[0057] The anaerobic digested sludge came from the UASB reactor of the State Key Laboratory of Urban Water Resources and Water Environment, Harbin Institute of Technology.

specific Embodiment approach 3

[0058] Specific embodiment three: the difference between this embodiment and specific embodiment one or two is: the effective volume of EGSB reactor 4 in step 2 is 1.53L, the volume of reaction zone is 1L, the volume of precipitation zone is 0.53L, AOB-ANAMMOX The amount of granular sludge added is 250-350mL. Other steps and parameters are the same as those in Embodiment 1 or 2.

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Abstract

The invention relates to a sewage treatment method and a UAFB-EGSB coupled system quick start method, particularly a domestic sewage treatment method and a UAFB-EGSB coupled system quick start method. The quick start method comprises the following steps: 1. connecting a UAFB reactor with an EGSB reactor; 2. adding activated sludge into the reactors; 3. performing a first start stage; and 4. performing a second start stage, thereby completing the quick start of the UAFB-EGSB coupled system. The domestic sewage treatment method comprises the following steps: 1. introducing domestic sewage into the UAFB reactor; and 2. introducing effluent water of the UAFB reactor into the EGSB reactor, thereby implementing domestic sewage treatment. The methods are suitable for the field of sewage treatment.

Description

technical field [0001] The invention relates to a sewage treatment method and a quick start method of a UAFB-EGSB coupling system. Background technique [0002] Water is an irreplaceable resource necessary for human beings and one of the important pillars for the sustainable development of society. The shortage of water resources, the shortage of energy and the greenhouse effect have become prominent problems to be solved urgently by human beings. However, the total amount of domestic urban domestic sewage discharge is large, and the quality of effluent water is becoming more and more complex. How to make domestic sewage resource utilization and meet the reuse standard is an important way to solve the shortage of water resources, and has gradually become a research hotspot. [0003] The treatment process of domestic sewage mainly adopts the activated sludge method. With the continuous innovation of scientific research workers and the introduction of foreign advanced technol...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F9/14
Inventor 高大文丛岩黄晓丽王小龙
Owner BEIJING UNIV OF CIVIL ENG & ARCHITECTURE
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