Multi-scene self-learning carbon source intelligent feeding system and method of denitrification tank
A denitrification and multi-scenario technology, applied in chemical instruments and methods, anaerobic digestion treatment, water treatment parameter control, etc., can solve problems such as repeated construction of equipment and instruments, waste of water treatment chemicals, increased construction and maintenance costs of water plants, etc. , to avoid waste of resources and reduce construction costs
Active Publication Date: 2019-04-12
北京博泰至淳生物科技有限公司
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Problems solved by technology
The construction of automatic dosing system will easily lead to repeated construction of equipment and instruments, increase the cost of water plant construction and maintenance, and cause waste
At the same time, the determination of the amount of dosing is mainly based on the process parameters of the water treatment equipment itself or by experience. In order to meet the sewage treatment discharge standards, large doses are often used during the dosing process, which directly leads to water treatment chemicals. Waste, sewage treatment costs increase
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[0044] The present invention will be described in further detail below in conjunction with the accompanying drawings.
[0045] When the system is added for the first time, the system has no historical data for reference. When performing the denitrification sublimation reaction, it needs to follow the process parameters of the water plant itself (it can be obtained from a comprehensive analysis of the data of the water plant 3 months before the system was built. Out) for the PLC control device 3 to regulate the dosing amount of the dosing device 4 and the amount of COD that needs to be added additionally. After the initial data is obtained in the first run, it provides a data reference basis for subsequent dosing.
[0046] The process of denitrification reaction is as follows:
[0047]
[0048]
[0049]
[0050]
[0051] First of all, before the sewage enters the denitrification biochemical tank, the total nitrogen content (TN value), COD value and water body tempe...
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The invention discloses a multi-scene self-learning carbon source intelligent feeding system and method of a denitrification tank. The system comprises a denitrification biochemical pool, a water inlet detection device and a water outlet detection device which are respectively arranged in a water inlet channel and a water outlet channel of the denitrification biochemical pool; the system further comprises a programmable logic controller (PLC) control device and a reagent feeding device; and the PLC control device is in electrical connection with the reagent feeding device, the water inlet detection device and the water outlet detection device. Data acquired by the water inlet detection device and the water outlet detection device is uploaded to the PLC control device, the PLC control device obtains a dosing amount of the next time through a data comparison result, and the dosing amounts of the current time or subsequent multiple times are regulated and controlled through the dosing amounts of last time or previous multiple times. According to the feeding method, the dosing amount of the reagent to be add is calculated according to nitrogen content difference values before and aftera denitrification reaction and a COD consumption amount, and on the basis of the existing process of a water plant, the additionally added reagents and chemical oxygen demand (COD) are accurately calculated. According to the self-learning capability of the system, the accuracy of the dosing amount can be continuously improved along with the increase of operation time of the system.
Description
technical field [0001] The invention relates to the field of sewage treatment, in particular to a multi-scenario self-learning carbon source intelligent dosing system and method for a denitrification tank. Background technique [0002] In the prior art, it is necessary to add microbial agents or chemical agents into the water treatment tank to participate in the sewage treatment during the sewage treatment process. In the existing method, with the upgrading of water plants and the addition of online monitoring of effluent TN, many water plants need to supplement additional carbon sources for denitrification and denitrification in order to ensure that the effluent TN meets the standard. The construction of automatic dosing system will easily lead to repeated construction of equipment and instruments, increase the cost of water plant construction and maintenance, and cause waste. At the same time, the determination of the amount of dosing is mainly based on the process parame...
Claims
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Login to View More IPC IPC(8): C02F3/28C02F3/34
CPCC02F3/28C02F3/342C02F2209/08C02F2209/15C02F2209/16C02F2209/40
Inventor 张阳阳汪翠萍郑淑文朱琳琳
Owner 北京博泰至淳生物科技有限公司