Sewage COD treatment device
A technology for treating equipment and sewage, which is applied in the fields of water/sewage multi-stage treatment, biological water/sewage treatment, water/sludge/sewage treatment, etc. The probability of failure, the effect of increasing contact time, and improving work efficiency
Pending Publication Date: 2021-04-02
CHINA TOBACCO HENAN IND
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Problems solved by technology
[0002] Cigarette factory sewage mainly comes from the production wastewater and domestic sewage of various workshops. The ratio of BOD to COD is about 0.2, which belongs to sewage with low biodegradability, especially the wastewater with white latex discharged from the packaging workshop. Difficult to be degraded by microorganisms, resulting in substandard sewage discharge and polluting the environment
[0003] The current sewage COD treatment device relies on blowing air into the sewage for aeration to reduce the COD index of sewage and make it reach the standard. Although the effect is obvious, it needs to use compressed air or blowing air, and requires a lot of power consumption and the operation of supporting equipment. Maintenance costs, while the structure of the aeration equipment is complex, and it is difficult to repair when a fault occurs, which will affect the sewage treatment effect
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[0025] Various exemplary embodiments of the present disclosure will now be described in detail with reference to the accompanying drawings. The description of the exemplary embodiments is illustrative only, and in no way restricts the disclosure, its application or uses. The present disclosure can be implemented in many different forms and is not limited to the embodiments described here. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art. It should be noted that relative arrangements of parts and steps, compositions of materials, numerical expressions and numerical values set forth in these embodiments should be interpreted as illustrative only and not as limiting, unless specifically stated otherwise.
[0026] "First", "second" and similar words used in the present disclosure do not indicate any order, quantity or importance, but are only used to distin...
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The invention discloses a sewage COD treatment device which comprises a bracket structure defined by a plurality of brackets, an inclined strut structure obliquely arranged in the bracket structure and a filter screen arranged on the inclined strut structure; the bracket structure is used for supporting the inclined strut structure; the inclined strut structure is used for supporting the filter screen; and the filter screen is used for filtering sewage and prolonging the retention time of the sewage so as to prolong the contact time of the sewage and air. According to the invention, the filterscreen is used for hanging and staying the sewage, filtering the sewage and prolonging the staying time of the sewage so as to prolong the contact time of the sewage and air, so that oxygen in the air is dissolved in water as much as possible to reduce the COD value, compressed air or blast air is not needed, a large amount of power consumption is saved, and the occurrence probability of faults is reduced; the service life is prolonged, the maintenance amount is greatly reduced, and the working efficiency is improved; and meanwhile, the sewage flows from top to bottom by means of gravity, anextra power source is not needed, and energy is saved.
Description
technical field [0001] The invention relates to the technical field of sewage treatment, in particular to a sewage COD treatment device. Background technique [0002] Cigarette factory sewage mainly comes from the production wastewater and domestic sewage of various workshops. The ratio of BOD to COD is about 0.2, which belongs to sewage with low biodegradability, especially the wastewater with white latex discharged from the packaging workshop. It is difficult to be degraded by microorganisms, resulting in substandard sewage discharge and polluting the environment. [0003] The current sewage COD treatment device relies on blowing air into the sewage for aeration to reduce the sewage COD index and make it meet the standard. Although the effect is obvious, compressed air or blowing air is required, and a large amount of power consumption and the operation of supporting equipment are required. Maintenance costs, while the structure of the aeration equipment is complex, and i...
Claims
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Login to View More IPC IPC(8): C02F9/14
CPCC02F1/001C02F3/02C02F3/34
Inventor 程文强邓瑞琴
Owner CHINA TOBACCO HENAN IND