The coagulation test has always been an indispensable experimental project in the water treatment industry, because the coagulation test can not only simulate the dosing, reaction, flocculation, and precipitation processes in the water treatment process (tap water purification or sewage treatment). It is important that the test results of different combinations can be amplified and applied to the production device to guide the production. Then, what role can the G value play in the coagulation test?
Let me talk about the meaning of G and GT values:
The G value refers to the velocity gradient and is used to characterize the degree of agitation during coagulation; in GT, T is the flocculation reaction time (without mixing time), and the GT value contains the amount G and reaction time T characterizing the agitation, so the G value and GT The value is a measure of the amount of control that comprehensively measures the process of the coagulation experiment.
So why are G and GT values ​​as control indicators for coagulation experiments?
Because the purpose of rapid agitation is to allow the coagulant to be dispersed into the water instantaneously, quickly and uniformly to avoid uneven dispersion of the agent, resulting in too high concentration of local agents, affecting the coagulation of the coagulant itself and its colloid (or impurity particles) with water. The role of ). The slow agitation is to further grow the microflocs formed during rapid agitation into coarse, dense flocs to achieve solid-liquid separation. Only when the G value (optimal slow stirring intensity) and the GT value (quick stirring condition) are controlled to the optimum state, the desired coagulation effect can be obtained, and the stirring time is shortened within the expected range. Reduced mixing time, which saves cost. Of course, many coagulation equipments can automatically calculate G and GT values ​​automatically according to the capacity of different capacity (such as MY3000 series coagulation test mixer), which not only saves material cost. At the same time and improve the efficiency of manpower. MY3000 Coagulation Test Mixer It is an intelligent water treatment test instrument and the only test instrument in China that has further improved the humanized operation.
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