Changzhou Welldone Machinery Technology Co.,Ltd
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The main toxicant of salty wastewater is inorganic toxicant, i.e. high concentration of inorganic salt. The influence of toxic substances on wastewater biological treatment is related to the type and concentration of toxic substances. Generally, with the increase of concentration, it can be divided into three categories: stimulation, inhibition and toxicity. The toxic effect of high concentration inorganic salt on the biological treatment of wastewater is to destroy the cell membrane and enzyme of microorganism by increasing the environmental osmotic pressure, so as to destroy the physiological activity of microorganism.
GT roller drum dryer is a kind of indirect heating dryer in continuous production. Raw material fed from top or bottom of drum and stick on the drum. Filling steam or thermal oil inside the drum, the heat then transferred to raw material, thus raw material could get dried. Flake form dried product will be scraped off, and preliminarily crushed as well as transported by screw conveyor.
Evaporated moisture will be sucked out by exhausting fan.
The dryer is suitable for liquid or paste form raw material with certain viscosity.
(1)High efficiency. Almost all of the heat could be used on drying, drying efficiency could reach 80-90%.
(2)Widely used. The dryer is available for drying the raw material with large moisture content range. We could get the best drying effect by adjust feeding rate, thickness of pavement, drum rotating speed, feeding form etc.
(3) Short retention time. Drying time only remains 10-15 seconds, it is suitable for heat sensitive material.
