Sludge storage pond
A sludge and sludge storage tank technology, applied in biological sludge treatment, dehydration/drying/thickened sludge treatment, etc., can solve the problem of increasing the use of phosphorus removal agents in sewage treatment plants and affecting the stability of total phosphorus in the effluent of sewage treatment plants Discharge up to standard, serious secondary release of phosphorus from sludge, etc.
Pending Publication Date: 2019-02-22
OUJI SHANGHAI ENVIRONMENTAL PROTECTION TECH +2
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Problems solved by technology
[0002] After the biochemical excess sludge and physicochemical sludge of the sewage treatment plant are discharged into the sludge storage tank, if they cannot be dehydrated in time, it is easy to produce secondary phosphorus release under anaerobic conditions, which will affect the stable discharge of total phosphorus in the effluent of the sewage treatment plant. Increase the use of phosphorus removal agents in sewage treatment plants and increase the operating costs of sewage treatment plants
[0003] This phenomenon is especially serious in medium and small-scale decentralized sewage treatment sites, where regular dehydration or external transportation is adopted, and the secondary release of phosphorus from excess sludge is more serious, which can easily lead to the failure of the total phosphorus discharge of decentralized sewage treatment sites to meet the standard all year round.
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[0021] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
[0022] Please refer to Figure 1 to Figure 3 , figure 1 It is a schematic diagram of the overall structure of a specific embodiment provided by the present invention; figure 2 for figure 1 top floor plan of the structure shown; image 3 for figure 1 Bottom floor plan of the structure shown.
[0023] In a specific embodiment provided by the present invention, the sludge storage tank mainly includes a sludge storage tank 1, a sedimentation device 2, an aer...
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The invention discloses a sludge storage pond. The sludge storage pond comprises a sludge storage pond body, a sedimentation device, an aeration device and an overflow pipe, wherein the sedimentationdevice is installed in the sludge storage pond and communicated with the sludge storage pond; the aeration device is installed at the bottom of the sludge storage pond, and the overflow pipe is installed at the upper end of the sedimentation device. According to the sludge storage pond system, sludge is always trapped in the aeration device outside the sedimentation device in the sludge storage pond body by the sedimentation device; due to existence of the aeration device, surplus sludge is always in a high aerobic state; secondary phosphorus release of surplus sludge discharged from the outside is greatly delayed as a result of the serious lack of carbon sources and the high aerobic environment, and the function of delaying phosphorus release of a delayed phosphorus release device of thesludge storage pond is achieved.
Description
technical field [0001] The invention relates to the technical field of sewage treatment, in particular to a sludge storage tank. Background technique [0002] After the biochemical excess sludge and physicochemical sludge of the sewage treatment plant are discharged into the sludge storage tank, if they cannot be dehydrated in time, it is easy to produce secondary phosphorus release under anaerobic conditions, which will affect the stable discharge of total phosphorus in the effluent of the sewage treatment plant. Increase the use of phosphorus removal agents in sewage treatment plants and increase the operating costs of sewage treatment plants. [0003] This phenomenon is especially serious in medium and small-scale decentralized sewage treatment sites, where regular dehydration or external transportation is adopted, and the secondary release of phosphorus from excess sludge is more serious, which can easily lead to the failure of the total phosphorus discharge of decentral...
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IPC IPC(8): C02F11/12C02F11/02
CPCC02F11/02C02F11/12
Inventor 张广学潘海燕
Owner OUJI SHANGHAI ENVIRONMENTAL PROTECTION TECH