An energy-saving quick-start aerobic granular sludge reactor

An aerobic granular sludge, fast-start technology, applied in water/sludge/sewage treatment, chemical instruments and methods, biological water/sewage treatment, etc., can solve problems such as energy waste, reduce aeration volume, The effect of energy-saving operation start-up cycle and aeration volume saving

Active Publication Date: 2019-10-15
HOHAI UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, from the perspective of pollutant removal, a large aeration rate is not necessary, which obviously causes a lot of energy waste; The reactor, in order to increase the superficial gas flow rate of the reactor to obtain a large hydraulic shear force, which makes the height of the reactor a major limiting factor in the practical application of aerobic granular sludge technology

Method used

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  • An energy-saving quick-start aerobic granular sludge reactor
  • An energy-saving quick-start aerobic granular sludge reactor

Examples

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Embodiment 1

[0015] Example 1: The reactor used in this example is equipped with a multi-stage conical hydraulic circulation cover and an annular vortex flap, and the sequence batch type aerobic granular sludge reactor (AGS-SBER) with a height-to-diameter ratio of 0.8, that is, using Aerobic granular sludge reactor for sewage treatment in intermittent operation; as attached figure 1 , 2 Shown: The shape of the reactor is cylindrical, the height-to-diameter ratio of the reactor is 0.8, the effective height of the cylinder is 1.2m, and the diameter is 1.5m, 8.48m 3 ;The bottom of the reactor is a conical mud storage hopper, and a water inlet device is installed at the bottom of the conical mud storage hopper. When the water is fed, no aeration is performed and the inlet water is fully in contact with the sludge. The water inlet pipe 05 and the external water inlet pump 04 of the reactor connected, the water inflow time is controlled by the water inlet pump for 60 to 120 minutes; at the same...

Embodiment 2

[0017] Example 2: The reactor used in this example is equipped with a multi-stage conical hydraulic circulation cover and an annular vortex flap, and the sequence batch type aerobic granular sludge reactor (AGS-SBER) with a height-to-diameter ratio of 0.8, that is, using Aerobic granular sludge reactor for sewage treatment in intermittent operation; as attached figure 1 , 2 Shown: The shape of the reactor is cylindrical, the height-to-diameter ratio of the reactor is 0.8, the effective height of the cylinder is 1.2m, and the diameter is 1.5m, 8.48m 3;The bottom of the reactor is a conical mud storage hopper, and a water inlet device is installed at the bottom of the conical mud storage hopper. When the water is fed, no aeration is performed and the inlet water is fully in contact with the sludge. The water inlet pipe 05 and the external water inlet pump 04 of the reactor connected, the water inflow time is controlled by the water inlet pump for 10 to 60 minutes; at the same t...

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Abstract

The invention discloses an energy-saving quick-start aerobic granular sludge reactor. The reactor comprises a reactor outer cylinder, the bottom of the reactor outer cylinder is provided with a conical sludge storage hopper, a microporous aeration device is arranged at the bottom of the conical sludge storage hopper and is connected with an external gas flow meter and an air compressor through aeration pipes, the conical sludge storage hopper is further connected with a water inlet pipe, the water inlet pipe is connected to a water inlet pump outside the reactor, the reactor outer cylinder is connected with a drainage pipe, drainage of the reactor is controlled by a water outlet control valve on the drainage pipe, and a multi-stage conical hydraulic circulating cover is arranged in the reactor outer cylinder. Multi-stage circulation of mixed liquid under different mixing strength conditions is achieved in the reactor with a small height diameter (smaller than 2), power consumption for operation of the aerobic granular sludge reactor and reactor height limitation are reduced, and operation and building cost of the aerobic granular sludge reactor is reduced.

Description

technical field [0001] The invention relates to an energy-saving quick-start aerobic granular sludge reactor, which belongs to the technical field of wastewater biological treatment. Background technique [0002] As a new technology for sewage and wastewater treatment, aerobic granular sludge has better settling performance, less sludge bulking, less residual sludge, strong impact resistance and high organic load compared with flocculent sludge. Advantages, due to the spatial structure of the layered distribution of microorganisms inside the particles, the simultaneous removal of carbon, nitrogen and phosphorus can be achieved in a single reactor. A large number of studies and practices in recent years have shown that aerobic granular sludge is a new sewage treatment technology with broad application prospects, which can efficiently treat various types of sewage and wastewater. [0003] Aerobic granular sludge is an aggregated and grown granular activated sludge formed by m...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C02F3/12
CPCC02F3/1278Y02W10/10
Inventor 暴瑞玲薛联青严晓菊付尧
Owner HOHAI UNIV
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