Treatment device and treatment method for sewage
A technology of sewage treatment device and sewage treatment method, which is applied in biological water/sewage treatment, water/sludge/sewage treatment, chemical instruments and methods, etc., can solve the problems of large power consumption and high operating costs, and save power costs. , the effect of reducing power consumption and simplifying the process
Inactive Publication Date: 2019-04-12
深圳市瑞清环保科技有限公司 +1
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Problems solved by technology
The denitrification rate of sewage by the above process is limited by the reflux ratio of the nitrifying liquid and the carbon-nitrogen ratio of the raw water. It is necessary to use a reflux pump or an air lift device to return a large proportion of the nitrifying liquid in the aerobic tank to the anoxic unit, resulting in power consumption. Larger, higher operating costs
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[0029] In order to facilitate the understanding of the present invention, the present invention will be described more fully below with reference to the associated drawings. Preferred embodiments of the invention are shown in the accompanying drawings. However, the present invention can be embodied in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present invention more thorough and comprehensive.
[0030] It should be noted that when an element is referred to as being “fixed” to another element, it can be directly on the other element or there can also be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or intervening elements may also be present. The terms "inner", "outer", "left", "right" and similar expressions are used herein for the purpose of descripti...
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The invention relates to a treatment device and treatment method for sewage. The treatment device for the sewage comprises a first aerobic unit, an anoxic unit and a second aerobic unit which are connected in sequence along the water inlet direction, wherein and the first aerobic unit is used for aerobic treatment and nitrification treatment of the first part of the sewage, the anoxic unit is usedfor denitrification treatment of the second part of the sewage and sewage output by an upper stream, and the second aerobic unit is used for nitrification treatment of the sewage output by an upper stream. According to the device and method provided by the invention, nitrate nitrogen and / or nitrite nitrogen obtained by the nitrification treatment of the first part of the sewage entering the firstaerobic unit can directly enter the anoxic unit to be used as a reaction substrate of the denitrification treatment of the sewage entering the anoxic unit, so that a backflow facility for re-pouringthe obtained nitrate nitrogen and / or nitrite nitrogen to the anoxic unit can be avoided to be arranged, the technological process is simplified, the power expenses are saved, and the power consumptionis reduced.
Description
technical field [0001] The invention relates to the technical field of sewage treatment, in particular to a sewage treatment device and a treatment method thereof. Background technique [0002] The traditional biochemical treatment technology is mainly the A / O process, A (Anaerobic) is an anoxic pool, and O (Oxic) is an aerobic pool. The mechanism of denitrification is full nitrification and denitrification. The nitrification reaction is completed by aerobic autotrophic bacteria in an aerobic environment, and the denitrification reaction is completed by heterotrophic bacteria in anoxic conditions. The denitrification rate of sewage by the above process is limited by the reflux ratio of the nitrifying liquid and the carbon-nitrogen ratio of the raw water. It is necessary to use a reflux pump or an air lift device to return a large proportion of the nitrifying liquid in the aerobic tank to the anoxic unit, resulting in power consumption. Larger, higher operating costs. Con...
Claims
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Login to View More IPC IPC(8): C02F3/30
CPCC02F3/301
Inventor 徐锋石张张立杰
Owner 深圳市瑞清环保科技有限公司