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Multistage recirculation reactor for anaerobic sludge

A circulating reactor and anaerobic sludge technology, applied in the direction of anaerobic digestion treatment, etc., can solve the problems of sludge ineffective mixing, sludge loss, etc., to ensure high-load operation efficiency, high-efficiency response, and increase contact area Effect

Inactive Publication Date: 2011-08-03
SHANDONG JIANZHU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, due to the high-efficiency treatment technology of reactors such as EGSB and IC, they have been widely used, but there are still defects such as the ineffective mixing of the circulating reflux liquid with the influent and the sludge at the bottom of the reactor, and the loss of sludge with the effluent.

Method used

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  • Multistage recirculation reactor for anaerobic sludge
  • Multistage recirculation reactor for anaerobic sludge
  • Multistage recirculation reactor for anaerobic sludge

Examples

Experimental program
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Effect test

Embodiment 1

[0025] An anaerobic sludge multi-stage circulation reactor, including reactor 1, water inlet pipe I11, water inlet pipe II10, water outlet pipe 6 and gas-liquid separation tank 7, water inlet pipe I11 is located at the lower end of reactor 1, and water inlet pipe II10 passes through the reaction The water pump 9 outside the reactor 1 is connected to the water inlet pipe I11, the outlet pipe 6 is set at the upper end of the reactor 1, the gas-liquid separation tank 7 is set at the top of the reactor 1, the cross section of the reactor 1 is circular, and the inside of the reactor 1 passes through The upper layer three-phase separator 19, the middle layer three-phase separator 13 and the lower layer gas collector 2 arranged in sequence from top to bottom divide the whole reactor into a precipitation zone 18, an upper layer reaction zone 17, a middle layer reaction zone 16 and a lower layer reaction zone 15 The lower gas collector 2 is a single-layer gas collecting hood; the bottom...

Embodiment 2

[0032] An anaerobic sludge multi-stage circulation reactor, comprising a reactor, a water inlet pipe I, a water inlet pipe II, an outlet pipe 6 and a gas-liquid separation tank, the water inlet pipe I is arranged at the lower end outside the reactor, and the water inlet pipe II passes through the The water pump is connected to the water inlet pipe I, the water outlet pipe is set at the upper end of the reactor, and the gas-liquid separation tank is set at the top of the reactor. The whole reactor is divided into a precipitation zone, an upper layer reaction zone, a middle layer reaction zone and a lower layer reaction zone; the lower layer gas collector is a single-layer gas collection hood; the bottom of the gas-liquid separation tank is connected There is an internal reflux circulation pipe extending to the inner bottom of the reactor; the inner bottom of the reactor is provided with an internal reflux liquid deflector corresponding to the outlet of the internal reflux circul...

Embodiment 3

[0035] An anaerobic sludge multi-stage circulation reactor, including a reactor, a water inlet pipe I, a water inlet pipe II, an outlet pipe and a gas-liquid separation tank, the water inlet pipe I is arranged at the lower end outside the reactor, and the water inlet pipe II passes through a water pump outside the reactor It is connected with the water inlet pipe I, the water outlet pipe is set at the upper end of the reactor, and the gas-liquid separation tank is set at the top of the reactor. , the middle three-phase separator and the lower gas collector divide the whole reactor into a precipitation zone, an upper reaction zone, a middle reaction zone and a lower reaction zone; the lower gas collector is a single-layer gas collecting hood; the bottom of the gas-liquid separation tank is connected with The internal reflux circulation pipe extending to the inner bottom of the reactor; the inner bottom of the reactor is provided with an internal reflux liquid deflector correspon...

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Abstract

The invention relates to a sewage treatment device, in particular relates to a multistage recirculation reactor for anaerobic sludge. The whole reactor is divided into a precipitation zone, an upper reaction zone, a middle reaction zone and a lower reaction zone through an upper three-phase separator, a middle three-phase separator and a lower gas collector which are successively arranged inside the reactor from up to down; the bottom of a gas-liquid separation tank is connected with an inner reflux circulation pipe which stretches to the bottom inside the reactor; the bottom inside the reactor is provided with an inner reflux liquid guiedvane and a water distribution pipe, wherein the inner reflux liquid guiedvane is corresponding to the outlet of the inner reflux circulation pipe, the effluent direction is tangent to the inner reflux liquid guiedvane, and the water distribution pipe is connected with a water inlet pipe II; the lower parts of the upper reaction zone and the middle reaction zone are respectively provided with an external duct; and the outside of the reactor is provided with an outer reflux circulation pipe which is respectively connected with a water outlet pipe, a water inlet pipe I and the external duct. By using the reactor, the external flow of sludge can be effectively prevented, and the sludge can be effectively mixed by utilizing inner and outer double steam guidance systems and the water distribution device.

Description

technical field [0001] The invention relates to sewage treatment equipment, in particular to an anaerobic sludge multistage circulation reactor, which is mainly used for the treatment of high-concentration organic waste water and the recovery of biological energy. Background technique [0002] With the improvement of environmental protection requirements and the need for resource recycling, anaerobic fermentation plays an important role in the treatment of high-concentration organic wastewater and the generation of new energy—biogas. The ecological engineering model centered on the production of biogas by anaerobic fermentation has been developed It has become the development direction of high-concentration organic wastewater treatment and comprehensive utilization of resources, and also puts forward requirements for the further development of anaerobic technology. [0003] In the development of anaerobic treatment process, the reactor is one of the fastest growing fields. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F3/28
Inventor 刘建广张春阳
Owner SHANDONG JIANZHU UNIV
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