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Efficient sludge reduction and synchronous carbon and nitrogen removal system, and treatment method based on system

A sludge reduction and high-efficiency technology, applied in sludge treatment, biological sludge treatment, water/sludge/sewage treatment, etc.

Active Publication Date: 2021-09-14
BEIJING UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The present invention solves how to rationally apply the aerobic nitrification process to further improve and strengthen the technical problems of residual sludge reduction and high ammonia nitrogen wastewater deep denitrification, and then Provide a high-efficiency sludge reduction synchronous carbon and nitrogen removal system

Method used

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  • Efficient sludge reduction and synchronous carbon and nitrogen removal system, and treatment method based on system

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Effect test

Embodiment 1

[0042] This embodiment provides a high-efficiency sludge reduction synchronous carbon and nitrogen removal system, such as figure 1 As shown in the figure, the high-efficiency sludge reduction synchronous carbon and nitrogen removal system includes: a water inlet adjustment device; the inlet water adjustment device in this embodiment includes a raw water storage device 1 and a first pH adjustment tank 11 connected in sequence; The first pH adjustment tank is equipped with a pH detector 111 and an acid-base dosing device 112 . The system is also provided with a muddy water storage device, the muddy water storage device includes a muddy water storage tank 2 and a second pH adjustment tank 21 located downstream of the muddy water storage tank 2, the second pH adjustment tank 21 is also provided with a pH detector 211 and an acid Alkali dosing device 212. The raw water storage device 1 and the first pH adjustment tank 11 and the muddy water storage tank 2 and the second pH adjust...

Embodiment 2

[0059] The high-efficiency sludge reduction synchronous carbon and nitrogen removal system in this embodiment includes: an influent water adjustment device; the influent water adjustment device in this embodiment includes a raw water storage device 1 and a first pH adjustment tank 11 that are connected in sequence. The raw water storage device 1 and the first pH adjustment tank 11 are communicated through a conveying pipeline, and a water pump and a liquid flow meter are installed on the conveying pipeline; the first pH adjustment tank 11 is equipped with a pH detector 111 and acid-base dosing device 112 . The system is also provided with a muddy water storage device, the muddy water storage device includes a muddy water storage tank 2 and a second pH adjustment tank 21 located downstream of the muddy water storage tank 2 .

[0060] Sludge fermentation is coupled with short-range denitrification / anammox bioreactor 3 (SFPDA reactor), the effluent of the influent adjustment devi...

Embodiment 3

[0073]This embodiment provides a high-efficiency sludge reduction synchronous carbon and nitrogen removal system. The high-efficiency sludge reduction and synchronous carbon and nitrogen removal system includes: a water inlet adjustment device; the water inlet adjustment device in this embodiment includes sequential The raw water storage device 1 and the first pH adjustment tank 11 are connected, the raw water storage device 1 and the first pH adjustment tank 11 are communicated through a conveying pipeline, and a water pump and a liquid flow meter are installed on the conveying pipeline; the first pH adjustment tank 11 The pH adjustment tank is equipped with a pH detector 111 and an acid-base dosing device 112 . The system is also provided with a mud water storage device, the mud water storage device includes a mud water storage tank 2 and a second pH adjustment tank 21 located downstream of the mud water storage tank 2 .

[0074] Sludge fermentation is coupled with short-ran...

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Abstract

The invention provides an efficient sludge reduction and synchronous carbon and nitrogen removal system. The system comprises: a water inlet adjusting device; a sludge fermentation coupling short-cut denitrification / anaerobic ammonia oxidation bioreactor; a gas-liquid mixing device; a sequencing batch nitrification reactor; an anaerobic aeration water tank; and an up-flow anaerobic sludge blanket reactor communicated with the water outlet of the anaerobic aeration water tank. According to the system disclosed by the invention, the aerobic nitrification section is arranged at the rear section of the coupling system for the first time, so that the removal effect of organic matters and nitrogen is further enhanced; and the generated nitrate nitrogen is utilized to regulate and control the environmental conditions in the sludge fermentation coupling short-cut denitrification / anaerobic ammonia oxidation bioreactor and the up-flow anaerobic sludge blanket reactor so as to respectively improve the sludge reduction effect and the anaerobic degradation of refractory organic matters, thereby realizing the efficient reduction of residual sludge and the deep reduction of carbon and nitrogen.

Description

technical field [0001] The invention belongs to the field of wastewater treatment, and in particular relates to a high-efficiency sludge reduction synchronous carbon and nitrogen removal system and a system-based treatment method. Background technique [0002] Anammox process as a new sustainable biological nitrogen removal technology, as one of its important substrates NO 2 - The source of -N has always been a research hotspot for this process. NO during short-path denitrification (PD) 2 - -N production is relatively stable, and PD can achieve more than 80% efficient and stable NO in long-term operation 3 - -N-NO 2 - -N conversion ratio (NTR), which indicates that PD provides NO for the anammox process 2 - -N works. Short-path denitrification (PD) usually uses easily degradable organic matter as an effective carbon source. However, in actual operation, the BOD / COD of wastewater is low and often contains a large amount of refractory substances, which leads to the f...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F11/02C02F11/04C02F11/00
CPCC02F11/02C02F11/04C02F11/00C02F2209/44C02F2209/16C02F2209/10C02F2303/06C02F2209/06
Inventor 张莉郝仕伟蓝爽郭伟戚伟康王博
Owner BEIJING UNIV OF TECH
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