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Sewage treatment device for synchronically removing sulfur, nitrogen and carbon and for recycling elemental sulfur

A sewage treatment equipment, elemental sulfur technology, applied in water/sludge/sewage treatment, sulfur preparation/purification, anaerobic digestion treatment, etc., can solve the problems of difficult recovery of elemental sulfur and low recovery rate, and achieve recovery efficiency High, low energy consumption, efficient recovery effect

Inactive Publication Date: 2011-11-16
HARBIN INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a sewage treatment equipment that simultaneously removes sulfur, nitrogen and carbon and recovers elemental sulfur, so as to solve the problem that elemental sulfur is difficult to recover and the recovery rate is not high in the existing process for treating sulfur-containing and nitrogen-containing sewage

Method used

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  • Sewage treatment device for synchronically removing sulfur, nitrogen and carbon and for recycling elemental sulfur
  • Sewage treatment device for synchronically removing sulfur, nitrogen and carbon and for recycling elemental sulfur
  • Sewage treatment device for synchronically removing sulfur, nitrogen and carbon and for recycling elemental sulfur

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specific Embodiment approach 1

[0010] Specific implementation mode one: as figure 1 As shown, the sewage treatment equipment for synchronously removing sulfur, nitrogen and carbon and recovering elemental sulfur described in this embodiment includes a water inlet pump 2, a return pump 3, an overflow weir 11, a reactor 12, a gas collecting hood 13, and a gas washing bottle 8. The sewage treatment equipment also includes a tee 14, an elemental sulfur collection container 15 and an elemental sulfur discharge pipe 16, the reactor 12 is arranged in the elemental sulfur collection container 15, the gas collection hood 13 is located above the reactor 12 and The gas collection hood 13 is arranged in the upper end of the reactor 12, and the overflow weir 11 is arranged on the upper end surface of the reactor 12, and the upper end of the gas collection hood 13 and the upper end of the overflow weir 11 are all communicated with the gas washing bottle 8, and the overflow The lower end of the weir 11 is provided with a ...

specific Embodiment approach 2

[0012] Specific implementation mode two: as figure 1 As shown, the outer diameter of the upper end of the reactor 12 in this embodiment is larger than the outer diameter of the lower end, and the outer diameter of the upper end of the elemental sulfur collection container 15 is larger than the outer diameter of the lower end. The effective increase of the diameter of the upper end of the reactor 12 can slow down the rising velocity of the upper end of the reactor, on the one hand, the sludge in the upper end of the reactor 12 can be allowed to fall back to the lower end of the reactor 12, reducing the loss of reactor biomass, On the other hand, it can effectively prevent the sludge in the reactor from entering the return pipe. The elemental sulfur collection container 15 is a precipitation area for elemental sulfur. The elemental sulfur produced during the biochemical reaction begins to precipitate at the upper end of the elemental sulfur collection container 15, and is finall...

specific Embodiment approach 3

[0013] Specific implementation mode three: as figure 1 As shown, the sewage treatment equipment in this embodiment further includes a plurality of elemental sulfur collection container sampling pipes 17 , and the plurality of elemental sulfur collection container sampling pipes 17 communicate with the side walls of the elemental sulfur collection container 15 respectively. Other compositions and connections are the same as those in Embodiment 1 or 2.

[0014] Specific implementation mode four: as figure 1 As shown, the sewage treatment equipment in this embodiment further includes a plurality of reactor sampling pipes 18, and the plurality of reactor sampling pipes 18 communicate with the reactor 12 respectively. Other components and connections are the same as those in the third embodiment.

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Abstract

The invention relates to a sewage treatment device for synchronically removing sulfur, nitrogen and carbon and for recycling elemental sulfur, which relates to the sewage treatment device, and solves the problems of the prior process for treating the sewage containing the nitrogen and the sulfur that the elemental sulfur is difficult to recycle and the recycling rate is low. A reactor is arrangedinside an elemental sulfur collection container, a tee joint is installed on the bottom part of the elemental sulfur collection container, the lower end surface of the reactor is communicated with anupper end port of the tee joint, a left end port and a right end port of the tee joint pass through two side walls of the elemental sulfur collection container to be exposed outside, a discharging port of a water inlet pump is communicated with the left end port of the tee joint, and the right end port of the tee joint is communicated with the side wall on the upper end of the reactor through a backflow pump; and an elemental sulfur discharging pipe is communicated with the lower end wall of the elemental sulfur collection container. The device has the effect that the generated elemental sulfur can be recycled in high efficiency, so a great amount of elemental sulfur during the reaction process of the reactor is precipitated inside the bottom part of the elemental sulfur collection container without influencing the running effect of the reactor, and the recycling efficiency of the elemental sulfur is high and can reach 80 percent.

Description

technical field [0001] The invention relates to sewage treatment equipment, in particular to a sewage treatment equipment for synchronously removing sulfur, nitrogen and carbon and recovering elemental sulfur, belonging to the technical field of sewage treatment. Background technique [0002] With the development of petrochemical, pharmaceutical, food fermentation, papermaking and other manufacturing industries, the discharge of a large amount of organic wastewater containing sulfur and nitrogen seriously threatens the ecological environment and the health of the people. Efficient removal methods have gradually become a research and development hotspot in the field of sewage treatment. Sulfur autotrophic denitrifiers can use nitrate and sulfide as electron acceptors and electron donors to carry out autotrophic metabolism under anaerobic conditions, and have the physiological characteristics of extracellular sulfur accumulation, so as to facilitate the synchronization of sulf...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C02F3/28C01B17/02C02F101/16C02F101/30
Inventor 王爱杰陈川任南琪周旭张莉徐熙俊卢秀清刘充高灵芳许继飞李笃中
Owner HARBIN INST OF TECH
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