1. Requirements of the experiment
Further deepen understanding of the concept of CST and evaluate sludge dewatering performance.
2, the experimental content
The sludge sample to be tested is put into the mud sample container as required, and the capillary water absorption time (CST) of the sludge is measured.
3. Main experimental equipment
CST measuring instrument, mud sample container, water filter paper, timer, etc.
The experiment is to determine the content of capillary water in the sludge to understand the dewatering performance of the sludge.
According to the different state of existence, sludge water can be divided into four types: free water, floc water, capillary water, and particle water.
Overview
The CST Capillary Suction Time has been widely used in foreign countries since 1970. It can be used in many fields: in urban sludge dewatering pretreatment, the difficulty of sludge dewatering is determined by CST, and then determined. PAM selection and optimal dosage to achieve optimal PAM dosing; due to the filterability and state of sludge affecting the output of almost all types of dewatering equipment, including: dry bed, belt press, Vacuum filters, filter presses and centrifugal separators, etc., can play an active role in guiding the operation of the above equipment through the rapid and reliable measurement of CST; used to evaluate mud suppression in oilfield chemical treatment testing and research. Dispersibility, anti-expansion ability of drilling fluid, hydration and dispersion ability of drilling fluid, optimization of working fluid formulation, such as treatment type, dosage and ratio, can also be used as a new method for analyzing and evaluating shale classification. During the flocculation treatment of waste drilling fluid, the CST value visually reflects the destabilization condition and then determines the flocculation performance of the flocculant to utilize the optimal flocculant and its concentration.
?CST tester features and features
Adopting Nava-class Microchip smart chip;
The measurement accuracy can reach 0.1 second;
Up to 30 records can be achieved for each group of measurements;
With storage data, average, query, delete function of test data;
A variety of low-power energy-saving treatment, a pair of 5th battery can be used for more than 2 years;
Large screen LCD display test status and data;
Automatic sleep can be achieved without action for 26 minutes;
Easy-to-operate clamshell test stand;
Low battery display reminder
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