Presentation Feed Water treatment Settling Centrifugal 1 Content Introduction Principle of operation Advantages and disadvantages 2 Introduction Vocabulary Deposition efficiency Hiệu quả lắng Autumn Ditch Máng thu Serrated trough Máng răng cưa Foam Wipers Cần gạt bọt Mud Wipers Cánh gạt bùn Floating Foam Rim Vành chặn bọt nổi Movement Kit Bộ truyền động Blade of scraper lưỡi dao cạo ( lưỡi cạp ) Rake arm cánh tay cào Density current baffle Mật độ hiện tại vách ngăn Scum skimmer váng hớt Drive kh.
Presentation Feed Water treatment Settling Centrifugal Content Introduction Principle of operation Advantages and disadvantages Introduction Vocabulary Deposition efficiency: Hiệu lắng Autumn Ditch: Máng thu Serrated trough: Máng cưa Foam Wipers: Cần gạt bọt Mud Wipers: Cánh gạt bùn Floating Foam Rim: Vành chặn bọt Movement Kit: Bộ truyền động Blade of scraper : lưỡi dao cạo ( lưỡi cạp ) Rake arm: cánh tay cào Density current baffle: Mật độ vách ngăn Scum skimmer : váng hớt Drive: khẩn cấp (trong công việc) Introduction Vocabulary Water collection pipe after deposition: ống thu nước sau lắng Whirlpool: Xoáy nước Floating Sludge Removal Tube: Ngăn thu bọt Centrifugal clarifier : Bể lắng ly tâm Suction pump: máy hút , bơm Hydrostatic discharge : phóng tĩnh điện Feed well: cung cấp tốt Overflow weir: đập tràn Introduction Characteristics and Composition • Characteristics: - This type of tank has a circular shape - This type of sedimentation tank is applied to feedwater flow greater than 20000m3/day - The depth of the tank is from 5-7m The diameter of the wipers is 20m - The smallest speed is in the tank wall - The flow velocity in the centrifugal deposition tank at the R/2 center is not greater than 10 mm/s - The deposition efficiency is 60% Settling Centrifugal Introduction Characteristics and Composition • Ø Ø Ø Ø Ø Ø Ø Ø Ø Ø Composition: Settling Centrifugal tanks are composed of: Ducting water into the tank Water Distribution Center Pipe Water collection pipe after deposition Floating Sludge Removal Tube Autumn Ditch Serrated trough Foam Wipers Mud Wipers Floating Foam Rim Movement Kit Introduction Location In water treatment the tank level is usually placed at the back of the reaction tank an d in front of the filter tank Introduction Purpose: Ø Used to store feedwater at a certain time so that the suspended substances in the feedwater can settle to the bottom Ø This type of tank helps to remove impurities and suspended matter from 16-60 meters in diameter Principle of operation Principle - The water after being pumped into the tank will be a combination of mud and water Thanks to the force of force, the mud and water will be separated, the heavier sludge will settle to the bottom of the tank, the lighter water will stay on top and the machines will be treated in the next stage - The bottom vanes are diagonal and point towards the center of the bottom of the tank When the vane operates, the sludge will be pushed towards the center of the bottom of the tank Principle of operation Principle There are stages: Ø Stages 1: Feedwater is led into the tank by the water pipe Ø Stages 2: Sludge is brought to the sump located in the middle of the tank by the sludge vanes with a rotational speed of rpm The sludge can slide down on its own because the slope of the bottom of the tank is usually 0.1% to 0.3% and not less than 5% Sludge is discharged from the centrifugal clarifier by hydrostatic discharge system or by suction pump Ø Stages 3: To improve efficiency in centrifuge tanks, it is common to design wastewater distribution and collection systems moving together in the tank This system has movements from rpm to rpm At this time, the settling efficiency of the tank can be increased to 60% 10 Advantages and disadvantages Advantages - Has a compact design and simple operation - It’s doesn’t cost a lot of land to build - Building materials not affect the health of the user Disadvantages - High construction costs - Many whirlpool areas in the sediment collection pit, it will reduce the working performance of the tank 11 12 ... collection pipe after deposition: ống thu nước sau lắng Whirlpool: Xoáy nước Floating Sludge Removal Tube: Ngăn thu bọt Centrifugal clarifier : Bể lắng ly tâm Suction pump: máy hút , bơm Hydrostatic... scraper : lưỡi dao cạo ( lưỡi cạp ) Rake arm: cánh tay cào Density current baffle: Mật độ vách ngăn Scum skimmer : váng hớt Drive: khẩn cấp (trong công việc) Introduction Vocabulary Water collection... than 10 mm/s - The deposition efficiency is 60% Settling Centrifugal Introduction Characteristics and Composition • Ø Ø Ø Ø Ø Ø Ø Ø Ø Ø Composition: Settling Centrifugal tanks are composed of: Ducting