Efficient agent adding system

Abstract

The present invention discloses an efficient agent adding system, which contains a PAC adding device and a PAM adding device, wherein the PAC adding device comprises a raw liquid pool, a first raw liquid pump, a first solution mixing container placed adjacent to an agent adding chamber and with an outlet communicated with the agent adding chamber, a first dilution water pump, a first flow meter arranged on the communication pipeline of the raw liquid pool and the first solution mixing container, and a second flow meter arranged on the communication pipeline of dilution water B and the first solution mixing container, and the PAM adding device comprises a dilution device, a second solution mixing container placed adjacent to an agent adding chamber and with an outlet communicated with the agent adding chamber, a solution pump, a second dilution water pump, a third flow meter arranged on the communication pipeline of the dilution device and the second solution mixing container, and a fourth flow meter arranged on the communication pipeline of the dilution water B and the second solution mixing container. Compared with the traditional agent adding system, the agent adding system of the present invention has characteristics of agent utilization efficiency improving, agent consumption reducing, and saving of tap water consumption during the agent adding process.

Description

technical field [0001] The invention belongs to the technical field of sewage treatment and relates to an efficient dosing system, in particular to a dosing system for flocculant PAC and coagulant aid PAM. Background technique [0002] After the rapid development in recent years, China's urban sewage treatment has made great achievements, but compared with the economic and social demands for efficient sewage treatment and resource saving, there is still a lot of room for improvement. [0003] For sewage plants, the dosing system is the resource (chemical) consumption center and the key object of operation management. The efficiency of the dosing system has a great influence on the efficiency of the entire sewage plant. Usually, when removing SS, COD, BOD in the sewage pretreatment stage and removing TP in the advanced treatment stage, a large amount of chemical agents need to be added. Common agents include flocculant polyaluminum chloride (PAC), ferric chloride (FeCl3 ), p...

AI Technical Summary

Problems solved by technology

Limited by the capacity of the equipment itself, the lowest concentration of the solution that can be prepared is generally around 2‰. The PAM solution with this concentration still has a high viscosity, which often causes blockage of the dosing pipeline and increases the workload of operation and management. On the other hand, The high concentration of the chemical solution will also lead to the incomplete reaction of the added chemical, resulting in a waste of resources

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