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Ball-type circulating bioreactor

A bioreactor and reactor technology, applied in biological sludge treatment, dehydration/drying/concentrated sludge treatment, etc., can solve the problems of incompatibility of sludge biological drying reactors, and achieve outstanding advantages, efficient utilization, System compact effect

Inactive Publication Date: 2015-05-13
SHENYANG JIANZHU UNIVERSITY
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

[0004] In order to solve the problem that the sludge biological drying reactor cannot be matched with the sludge biological drying process in the prior art, the purpose of the present invention is to provide a push circulation device in the spherical reactor to realize sludge in a fully enclosed environment. Under the biochemical reaction, reduce the cost of sludge disposal and improve the fermentation efficiency of biological drying

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Embodiment Construction

[0025] The circulating bioreactor is a spherical reactor with an upper and lower structure, wherein the feeding port, the microbial input device and the air supply equipment are all installed in the upper half of the spherical reactor, and a double-rod stirrer is installed in the middle of the upper hemisphere of the reactor. There is an ellipsoidal filtrate (sludge) recovery tank connected under the device, which is responsible for the boring recovery and circulation during the reaction; the specific working process is: after feeding the materials that have been fully mixed with auxiliary materials from the feeding port 6, open the pressurized strain tank 4 and the metering pump 5 start the double-rod agitator 1 after putting in the microbial preparation, so that the materials are mixed evenly, and the wall surface of the closed box is guaranteed to be at a constant temperature of 55°C due to the action of the water bath; at the same time, the prefabricated fans 10 and 11 are t...

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Abstract

The invention relates to the design of a ball-type circulating bioreactor, and belongs to the technical field of sludge treatment. An automatic turning design of a sludge reactor adopted in the invention aims to enhance the uniform heating and ventilation effects of a sludge acceptor during the drying process; a can-shaped design aims to prevent dead angles during the sludge circulating process, and the service life of the reactor is prolonged. The ball-type circulating bioreactor comprises a ball-type reactor, edge scraping equipment and an ellipsoidal-type filtrate (sludge) recovery tank, wherein the ellipsoidal-type filtrate recovery tank is positioned at the lower part of the reactor; the upper part of the recovery tank is provided with a filter screen for enabling filtrate generated due to settlement action in the reaction to flow out; a sludge discharge port is formed under a reaction tank. During the reaction process, the edge scraping equipment runs once along a track every 12h, sludge which is attached to the inner wall of the reactor and sludge with the drying effect needs to be strengthened relative to that at the periphery of the center of the reactor are pushed to the top of the reactor, and the sludge is dropped again so as to achieve the effect of timing turning.

Description

technical field [0001] The invention belongs to the technical field of sludge treatment, and in particular relates to a spherical circulation bioreactor. Background technique [0002] A large amount of excess sludge in the process of urban sewage treatment has become a serious environmental and social problem. Regarding the disposal of excess sludge, the sludge biological drying technology with low energy consumption and high efficiency has a good application prospect in sludge treatment because it makes full use of the biomass energy of the sludge itself. However, as a new technology, sludge biological drying technology is still in the initial stage of practical application, and how to improve the effect of biological drying has always been a difficult point. [0003] Existing biological drying reactors usually adopt box type and cylindrical type, and the stirring area of ​​the stirring rod is limited, resulting in dead corners in the reactor. Unevenness will affect the d...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C02F11/02C02F11/14
Inventor 邹惠芬费颖超杨富华
Owner SHENYANG JIANZHU UNIVERSITY
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