【Daily Question】Chemical Engineering Principles 281: Clarifier Turning (January 1)
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This post was last edited by “Back to Cambridge” on January 13, 2016, at 16:39. Starting today, the Chemical Engineering Theory section will launch the “Question of the Day” activity, aimed at helping everyone reinforce their fundamental knowledge in chemical engineering. Subsequently, series such as “Principles of Chemical Engineering”, “Mass Transfer and Separation”, “Chemical Engineering Thermodynamics”, and “Chemical Process Technology” will also be introduced. We hope for your active participation! Wishing you all a Merry Christmas~~ For replies to the “Question of the Day” activity, answers can be viewed directly; however, the thread will be closed after one day! ! To encourage everyone’s continued participation this year! You get 3 wealth rewards just for participating, and an additional 4 wealth points for correct answers~~~ Short answer question: What are the reasons for turning over the clarifier tank? Answer: 1) Excessively high inflow flow rate. 2) The mixer operates at too high or too low a speed. 3) Fault in the sludge scraper. 4) Excessive or insufficient dosage of chemicals. 5) Failure to carry out intermediate or bottom discharge in a timely manner. 6) Lack of timely cleaning, resulting in low utilization of the inclined tubes in the clarifier. 7) No sludge present in the clarifier
Answer: 1) The inflow flow rate is too high. 2) The mixing speed of the mixer is either too fast or too slow. 3) There is a malfunction with the sludge scraper. 4) The amount of chemical added is either too large or too small. 5) There is no timely intermediate or bottom discharge. 6) There is no timely cleaning, resulting in low utilization of the inclined tubes in the clarifier. 7) There is no sludge in the clarifier
1) The inflow flow rate is too high； 2) The mixing speed of the mixer is too fast or too slow ； 3) Sludge scraper failure ； 4) Excessive or insufficient dosage of chemicals added ； 5) No timely mid-row or bottom-row placement ； 6) Failure to flush in a timely manner results in low utilization of the inclined tubes in the clarifier ； 7) There is no sludge in the clarifier.
1) The inflow flow rate is too high； 2) The mixing speed of the mixer is too fast or too slow ； 3) Sludge scraper failure ； 4) Excessive or insufficient dosage of chemicals added ； 5) No timely mid-row or bottom-row placement ； 6) Failure to flush in a timely manner results in low utilization of the inclined tubes in the clarifier ； 7) No sludge in the clarifier
What are the reasons for turning over a clarifier tank? 1) Excessive inflow flow rate. 2) The mixing speed of the mixer is too fast or too slow. 3) Fault in the sludge scraper. 4) Excessive or insufficient dosage of chemicals. 5) Failure to carry out intermediate or bottom discharge in a timely manner. 6) Failure to perform timely cleaning, resulting in low utilization of the inclined tubes in the clarifier. 7) No sludge present in the clarifier
Sludge turning over in the clarifier may be due to an excessive accumulation of sludge at the bottom that needs to be removed, an increased amount of sludge in the incoming water, an improper dosage of chemicals, or inadequate hydraulic agitation
What are the reasons for turning over a clarifier tank? Sludge turning over in the clarifier may be due to an excessive accumulation of sludge at the bottom that needs to be removed, an increased amount of sludge in the influent water, an improper dosage of chemicals, or hydraulic agitation
Answer: 1) Excessive inflow flow rate. 2) The mixer operates at too high or too low a speed. 3) Fault in the sludge scraper. 4) Excessive or insufficient dosage of chemicals. 5) Failure to carry out intermediate or bottom discharge in a timely manner. 6) Failure to perform timely cleaning, resulting in low utilization of the inclined tubes in the clarifier. 7) No sludge present in the clarifier
Sludge turning over in the clarifier may be caused by an excessive accumulation of sludge at the bottom that needs to be removed, an increased amount of sludge in the influent water, improper dosing of chemicals, or inadequate design, as well as hydraulic agitation.
In conventional hydraulic clarifiers, sludge accumulation may occur due to an excessive amount of sludge at the bottom that needs to be removed, an increased level of sediment in the incoming water, improper dosing of chemicals, or issues resulting from inadequate hydraulic agitation. A judgment can only be made after a detailed analysis of the specific reasons on site; the situation is different if biological treatment is employed upstream
In conventional hydraulic clarifiers, sludge accumulation may occur due to an excessive amount of sludge at the bottom that needs to be removed, an increased level of sediment in the incoming water, improper dosing of chemicals, or issues resulting from inadequate hydraulic agitation. A judgment can only be made after a detailed analysis of the specific reasons on site; the situation is different if biological treatment is employed upstream