Biochemical sewage treatment system and control method
A technology for biochemical treatment and sewage, applied in water treatment parameter control, water/sludge/sewage treatment, chemical instruments and methods, etc., can solve problems such as inaccurate control, achieve enhanced accuracy, a good and stable living environment, strengthen timeliness effect
Pending Publication Date: 2020-04-17
BEIJING SIQINGYUAN BIO TECH
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[0034] The specific implementation manners of the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.
[0035] In the description of the present invention, it should be noted that unless otherwise specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection or a detachable connection. Connected, or integrally connected; it may be mechanically connected or electrically connected; it may be directly connected or indirectly connected through an intermediary, and it may be the internal communication of two components. Those of ordinary skill in the art can understand the specific meanings of the above terms in the present invention in specific situations.
[0036] Such as figure ...
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The invention relates to the field of sewage treatment, and discloses a biochemical sewage treatment system and a control method. The biochemical sewage treatment system comprises a biochemical reaction tank, a first control subsystem, a second control subsystem and a third control subsystem, wherein the first control subsystem comprises an oxidation-reduction potential online analysis device, a nitrification liquid reflux control device and a controller; the second control subsystem comprises a water inlet flow meter, a chemical oxygen demand online analysis device, a dissolved oxygen onlineanalysis device, an aeration device and a controller; and the third control subsystem comprises a total nitrogen online analysis device, a carbon source adding device, a water inlet flow meter and a controller. According to the control method, the three control systems are adopted; timeliness in regulation and control of the microbial state of the biochemical reaction tank is enhanced by the firstcontrol subsystem; the accuracy of the air volume of the aeration device is enhanced by the second control subsystem; and the accuracy of the adding amount of a carbon source is enhanced by the thirdcontrol subsystem.
Description
technical field [0001] The invention relates to the field of sewage treatment, in particular to a sewage biochemical treatment system and a control method. Background technique [0002] At present, the distribution and supply of the aeration volume of the biochemical reaction tank in the sewage treatment process tank at home and abroad, the distribution and dosage of dissolved oxygen and carbon sources, and the control of the microbial state in the biochemical tank have always been difficult problems. The distribution of dissolved oxygen in the sewage treatment process directly affects the effect of sewage treatment, the activity of sludge and even the quality of effluent. The distribution and supply of aeration in most sewage treatment plants are still manually controlled remotely, which is prone to errors; The value adjusts the concentration of dissolved oxygen in the aeration tank. These two methods have low control accuracy, large fluctuations in dissolved oxygen, ener...
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IPC IPC(8): C02F3/30
CPCC02F3/30C02F2209/22C02F2305/06Y02W10/10
Inventor 陈洁张环茹缪静方先金高琳琳张峰李春青
Owner BEIJING SIQINGYUAN BIO TECH