【Daily Question】Chemical Engineering Principles 286: Clarifier (January 6)
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This post was last edited by Zaihui Kangqiao on 2016-1-13 at 16:34. The Chemical Engineering Theory section is launching a \"One Question per Day\" activity starting today, aimed at helping everyone reinforce their basic knowledge in chemical engineering. Subsequent series will include those on \"Principles of Chemical Engineering\", \"Mass Transfer and Separation\", \"Thermodynamics in Chemical Engineering\", and \"Chemical Process Engineering\". We hope you will give it your active support! Wishing everyone a happy Christmas! Answers to the questions in the \"One Question per Day\" activity can be viewed directly; the thread will be closed after 1 day ! To encourage everyone’s continued participation this year! Participation earns 3 wealth points, with an additional 4 wealth points for correct answers~~~ Short answer question: What are the operations of a clarifier tank and what are the precautions to take? Answer: 1) When the effluent is clear and transparent, it indicates optimal quality; stable operation should be maintained. 2) If the effluent becomes cloudy, the dosage of chemicals should be increased. 3) If the effluent turns gray in color, it means too much chemical has been added, so the dosage should be reduced. 4) If flocs appear on the surface of the effluent, it indicates an excessive inflow rate or too much sludge; the inflow rate should be lowered or sludge should be removed. 5) When the turbidity of the clear water is low, the sludge scraper can operate intermittently, but care must be taken to avoid pressing down on the rake. 6) When the clarification tank is shut down for a short period of time, neither the mixer nor the sludge scraper should be stopped, in order to prevent sediment from settling; if the tank is shut down for a longer period, the sediment should be removed or emptied to prevent the sludge scraper from pressing down on the rake.
1) When the effluent is clear and transparent, it represents optimal operating conditions; make sure to maintain stable operation； 2) When the effluent becomes turbid, the dosage of chemicals should be increased ； 3) If the color of the effluent is gray, it indicates that too much chemical has been added; the dosage needs to be reduced ； 4) If floccules rise to the surface in the effluent area, it indicates that the water inflow rate is too high or there is an excessive amount of sludge; the water inflow rate should be reduced or sludge should be removed ； 5) When the turbidity of the clear water is low, the sludge scraper can operate intermittently ； 6) When the clarification tank is out of service for a short period of time, the mixer and sludge scraper must also continue to operate to prevent the sludge from settling ； 7) When the machine is shut down for an extended period, it is necessary to drain or release the sludge.
What are the operations of a clarifier and the precautions to take? During the operation of the clarifier, the following points should be noted: 1) When the effluent is clear and transparent, it indicates optimal operating conditions; care should be taken to maintain stable operation ； 2) When the effluent becomes turbid, the dosage of chemicals should be increased ； 3) If the color of the effluent is gray, it indicates that too much chemical has been added; the dosage needs to be reduced ； 4) If floccules rise to the surface in the effluent area, it indicates that the water inflow rate is too high or there is an excessive amount of sludge; the water inflow rate should be reduced or sludge should be removed ； 5) When the turbidity of the clear water is low, the sludge scraper can operate intermittently ； 6) When the clarification tank is out of service for a short period of time, the mixer and sludge scraper must also continue to operate to prevent the sludge from settling ； 7) When the machine is shut down for an extended period, it is necessary to drain or release the sludge.
What are the operations of a clarifier and the precautions to take? Answer: 1) When the effluent is clear and transparent, it indicates optimal quality; stable operation should be maintained. 2) If the effluent becomes cloudy, the dosage of chemicals should be increased. 3) If the effluent turns gray in color, it means too much chemical has been added, so the dosage should be reduced. 4) If flocs appear on the surface of the effluent, it indicates an excessive inflow rate or too much sludge; the inflow rate should be lowered or sludge should be removed. 5) When the turbidity of the clear water is low, the sludge scraper can operate intermittently, but care must be taken to avoid pressing down on the rake. 6) When the clarification tank is shut down for a short period of time, neither the mixer nor the sludge scraper should be stopped, in order to prevent sediment from settling; if the tank is shut down for a longer period, the sediment should be removed or emptied to prevent the sludge scraper from pressing down on the rake.
1) When the effluent is clear and transparent, it represents optimal operating conditions; make sure to maintain stable operation； 2) When the effluent becomes turbid, the dosage of chemicals should be increased ； 3) If the color of the effluent is gray, it indicates that too much chemical has been added; the dosage needs to be reduced ； 4) If floccules rise to the surface in the effluent area, it indicates that the water inflow rate is too high or there is an excessive amount of sludge; the water inflow rate should be reduced or sludge should be removed ； 5) When the turbidity of the clear water is low, the sludge scraper can operate intermittently ； 6) When the clarification tank is out of service for a short period of time, the mixer and sludge scraper must also continue to operate to prevent the sludge from settling ； 7) When the machine is shut down for an extended period, it is necessary to drain or release the sludge.
1) When the effluent is clear and transparent, it indicates optimal operating conditions; make sure to maintain stable operation. 2) If the effluent becomes turbid, the dosage of chemicals should be increased. 3) A gray color of the effluent suggests that too much chemical has been added, so the dosage needs to be reduced. 4) If flocs appear on the surface of the effluent, it indicates that the flow rate of water entering the system is too high or there is too much sediment; in such cases, the water flow rate should be reduced or sediment should be removed. 5) When the turbidity of the clear water is low, the sludge scraper can operate intermittently. 6) If the clarifier is shut down for a short period of time, the mixer and sludge scraper must continue to operate to prevent sediment from settling. 7) If the system is shut down for an extended period, the sediment needs to be removed or the tank emptied.
1) When the effluent is clear and transparent, it represents optimal operating conditions; make sure to maintain stable operation； 2) When the effluent becomes turbid, the dosage of chemicals should be increased ； 3) If the color of the effluent is gray, it indicates that too much chemical has been added; the dosage needs to be reduced ； 4) If floccules rise to the surface in the effluent area, it indicates that the water inflow rate is too high or there is an excessive amount of sludge; the water inflow rate should be reduced or sludge should be removed ； 5) When the turbidity of the clear water is low, the sludge scraper can operate intermittently ； 6) When the clarification tank is out of service for a short period of time, the mixer and sludge scraper must also continue to operate to prevent the sludge from settling ； 7) When the machine is shut down for an extended period, it is necessary to drain or release the sludge.
During the operation of the clarifier, the following points should be noted: 1) When the effluent is clear and transparent, it indicates optimal operating conditions; care should be taken to maintain stable operation； 2) When the effluent becomes turbid, the dosage of chemicals should be increased ； 3) If the color of the effluent is gray, it indicates that too much chemical has been added; the dosage needs to be reduced ； 4) If floccules rise to the surface in the effluent area, it indicates that the water inflow rate is too high or there is an excessive amount of sludge; the water inflow rate should be reduced or sludge should be removed ； 5) When the turbidity of the clear water is low, the sludge scraper can operate intermittently ； 6) When the clarification tank is out of service for a short period of time, the mixer and sludge scraper must also continue to operate to prevent the sludge from settling ； 7) When the machine is shut down for an extended period, it is necessary to drain or release the sludge.
What are the operations of a clarifier and the precautions to take? 1) When the effluent is clear and transparent, it represents optimal operating conditions; make sure to maintain stable operation ； 2) When it is detected that the water becomes turbid during searching, the dosage of chemicals should be increased ； 3) If the color of the effluent is gray, it indicates that too much chemical has been added; the dosage needs to be reduced ； 4) If floccules rise to the surface in the effluent area, it indicates that the water inflow rate is too high or there is an excessive amount of sludge; the water inflow rate should be reduced or sludge should be removed ； 5) When the turbidity of the clear water is low, the sludge scraper can operate intermittently ； 6) When the clarification tank is out of service for a short period of time, the mixer and sludge scraper must also continue to operate to prevent the sludge from settling ； 7) When the machine is shut down for an extended period, it is necessary to drain or release the sludge.
1) When the effluent is clear and transparent, it represents optimal operating conditions; make sure to maintain stable operation； 2) When the effluent becomes turbid, the dosage of chemicals should be increased ； 3) If the color of the effluent is gray, it indicates that too much chemical has been added; the dosage needs to be reduced ； 4) If floccules rise to the surface in the effluent area, it indicates that the water inflow rate is too high or there is an excessive amount of sludge; the water inflow rate should be reduced or sludge should be removed ； 5) When the turbidity of the clear water is low, the sludge scraper can operate intermittently ； 6) When the clarification tank is out of service for a short period of time, the mixer and sludge scraper must also continue to operate to prevent the sludge from settling ； 7) When the machine is shut down for an extended period, it is necessary to drain or release the sludge.
1) When the effluent is clear and transparent, it represents optimal operating conditions; make sure to maintain stable operation； 2) When the effluent becomes turbid, the dosage of chemicals should be increased ； 3) If the color of the effluent is gray, it indicates that too much chemical has been added; the dosage needs to be reduced ； 4) If floccules rise to the surface in the effluent area, it indicates that the water inflow rate is too high or there is an excessive amount of sludge; the water inflow rate should be reduced or sludge should be removed ； 5) When the turbidity of the clear water is low, the sludge scraper can operate intermittently ； 6) When the clarification tank is out of service for a short period of time, the mixer and sludge scraper must also continue to operate to prevent the sludge from settling ； 7) When the machine is shut down for an extended period, it is necessary to drain or release the sludge.