Beginners Guide to ThickenersOutotec

In high rate thickener HRT designs the rise rate or solids loading will dictate the required tank diameter for any given throughput. In high compression HCT and paste PT applications the bed depth or the mass of solids in the thickener must also be selected to ensure the desired underflow density from the thickener is achieved.

Sizing Tank Overflow LineIndustrial Professionals

Sep 05, 1983· Sizing Tank Overflow Lineposted in Industrial Professionals: I am working on sizing an overflow line for a tank and while I believe I have an acceptable solution, this is the first calculation of this nature that I have performed and I want to ensure that I have not overlooked some critical aspect. The overflow line is inside the tank and has a syphon break, which is exposed to atmospheric

Measuring Settling Rates and Calculating Thickener Capacity

The required depth of the thickener may be ascertained by computing the capacity of the thickening zone to contain a supply of solids equal to the total capacity of the tank for the number of hours required to thicken the pulp to the density required in the discharge, and to this depth adding an allowance for the lost space due to the pitch of

How to Size a ThickenerMineral Processing & Metallurgy

Normally a 25 per cent factor of safety is allowed in determining the thickener area size. Thus, in the above case, 8.87 largest of three figures plus 25 per cent factor of safety, equals 11.09 square feet area required per ton of dry solids fed to the thickener per 24 hours.

UNVEILING THE MYTH OF HIGH CAPACITY THICKENERS

Today the definitions of High Capacity or High Rate Thickeners is used to describe equipment, where mineral particles are thoroughly mixed with flocculant within a feedwell and then injected uniformly into the hindered settling zone of the thickener with largely radial motion. Dorr Oliver High Capacity Thickener with High Capacity Clarifier feed.

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For high abuse installations. PP Plain weave Polyester : Polyester Up to 900 kN/m 120 & 150 kN/m/ply Used in special applications where acid resistance is needed. Contact us for information. NN : Plain weave : Nylon : Nylon : Up to 2000 kN/m 150 to 450 kN/m/ply High elongation, mostly replaced by polyesternylon. Used in special

Avoid PressureRelief System PitfallsAIChE

The saying, The most effective and efficient mitigation or elimination of risk is achieved at the earliest juncture and at the most fundamental level, can be applied to practically any discipline and any situation, including process safety and pressurerelief system design.In any project, there is the least amount of risk e.g., financial, safety, etc. and the greatest amount of control

Use a V Notch Weir to Measure Open Channel Flow Rate

The v notch weir is widely used to measure open channel flow rate. It is especially good for measuring a low flow rate, because the area of flow through the v notch becomes quite small while the head over the v notch is still a measurable value. When a v notch weir is used to meter flow, the weir equation Q = 2.49 H^2.48 can be used to calculate Q, the flow rate over the weir and through the

Activated Sludge Secondary Clarifier Design Spreadsheet

Where to Find Activated Sludge Secondary Clarifier Design Spreadsheets. For an Excel spreadsheet for activated sludge secondary clarifier design calculations, click here to visit our spreadsheet store. Obtain a convenient, easy to use primary and secondary clarifier design spreadsheets for only $11.95. Read on for information about the use of an Excel spreadsheet for activated sludge secondary

Distillation Column Tray Selection & Sizing1

The numbers of flowpaths of liquid on tray are 1, 2, 3 or 4 as per liquid capacity requirement of column. From a capacity viewpoint, a liquid rate greater than 6 gpm / inch of weir weir loading, is the rate at which a higher number of flow paths should be considered. The maximum allowable weir loading is 13 gpm/in of weir length.

Calculate a Settling Tank's CapacityThickener

Stirring would not increase the capacity of the thickener beyond the natural capacity for discharging pulp of the consistency at which the channels have just closed; on the contrary, the capacity should be slightly lower, due to the fact that the D in Mr. Mishlers formula No. 3 becomes less and A, or required area, consequently becomes greater.

Steadystate, control, and capacity calculations for

The notion of high rate thickener stems from the observation that this mode usually permits to handle a higher rate of feed solids than the conventional, and that the capacitylimiting hindered settling zone is eliminat ed.Weshallseeinthispaper,however,thatthequestion whethertheattainablesolidsthroughputinagivenunitis really enhanced by operation in highrate mode

Metallurgy & Mineral ProcessingOver 9000 Members and

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MUD ENGINEERING This chapter covers the following items

¾ Suitable for high density, > 14 ppg ¾ Work under high temperature 250300 F 121149 C ¾ High tolerance for contamination of drilled solids, salt anhydrite, cement ¾ Low filter loss ¾ Consists of: Fresh or sea water, bentonite, chrome or ferrochrome lignosulphonate, caustic soda CMC or stabilized starch

SUMMARY OF KEY WASTEWATER MATH FORMULAS

SUMMARY OF KEY WASTEWATER MATH FORMULASContinued Sedimentation Tanks and Clarifiers: 5. Solids Loading =Solids into Clarifier, lbs/dayRate, lbs/day/sq. ft.Surface Area, sq. ft.Design Rate: Primary Clarifiers: Not a design consideration. 2nd. Clarifiers: 1230 lbs/day/sq. ft. 6.

Wastewater: Exam 3: Biosolids/sludge & Land Application

Start studying Wastewater: Exam 3: Biosolids/sludge & Land Application. Learn vocabulary, terms, and more with flashcards, games, and other study tools.

Metallurgy & Mineral ProcessingOver 9000 Members and

Ask for Help with Questions / Offer Answers / Give and Receive Ideas, Solutions & Opinions Hello and welcome to 911 Metallurgist Mineral Processing/Metallurgy Community Discussion Forums. Please join me and other Mineral Processing Industry Professionals in a this uniquely friendly environment. Forum Search Please SELECT YOUR TOPIC of interest From List Below to Read or ADD A TOPIC Ask a

grinder for sale philippinesstarka.eu

PRODUCTS ; Feeding & Conveying; Crushing Equipment; Grinding Equipment; Portable & Mobile; Screening & Washing; HOME>>Product>>grinder for sale philippines. Grinder Machine For Sale Philippines. 2020424&ensp·&enspGrinder machine sale in philippines A grinding machine often shortened to grinder is one of power tools or machine tools used for grinding it is a type of machining

Sludge Thickener With High Quality And Capacity

Grid type ball mill. thickener is applied to finish the work of concentrating and into running roller transmission and rack transmission thickener . hot sales high quality large capacity ball mills with ce. get price high efficiency mineral processing thickener. thickener for liquid detergent, wholesale various high quality thickener for liquid .

Engineering Excel SpreadsheetsLow Cost Easy to Use

At Engineering Excel Spreadsheets, we have low cost, easy to use spreadsheets for engineering calculations, including pipe flow, flow measurement, stormwater measurement, heat transfer coefficients, open channel flow, structural analysis of beams, and more.

Reinforced Concrete Wall Design BasicsWisconsin

Concrete Strength al\ne for an 10 thick wall with #[email protected] and 2.5 clear to strength steel will only reduce the nominal moment capacity of the section from 136.68 to 135.66 inchkips \ if the concrete strength decreased from 3.5 to 3.0 ksi.

Improve Clarifier and Thickener Design and Operation

For this application 3341 m3/day/m28001,000 gal/day/ft2 is considered typical; the range for typical overflow rates is 1673 4001,800 in the same units 1. The overflow rate in the previous batch flux curve illustration is: Rise rate = wastewater flow rate/clarifier area = 23.4 m3/day/m2570 gal/day/ft2.

Water Treatment Concepts & Terms FlashcardsQuizlet

Start studying Water Treatment Concepts & Terms. Learn vocabulary, terms, and more with flashcards, games, and other study tools.High rate clarification. tube+plate, ballasted, dissovled aird10, d60, d90, used for headloss/backwashing calcs. Uniformity Coefficient. ratio of d60 to d10, as UC increases, uniformity dec. Filter

Primary Sludge Fermentation for Reliable Biological

For 2 stage, just 1 new smaller size Static, fermenter/thickener needed, it has 40 dia. and 16 depth. The 2stage sys. also need 2new CMF, 350 K MG each. For UFAT sys, a same size fermenter/thickener will be needed as the 2nd fermenter/thickener. 2 new primary

Water/Wastewater Calculator PageDEP Homepage

Calculators for water & wastewater ** Your source for Water/Wastewater Information on the Web ** Temperature GPM to MGD. Loadings Calculation. Lbs of Chemical / Gal of Solution. Tank Volume Calculations. MG/L PPM to Lbs per Day

Belt Filter Press Systems for Sludge Dewatering

FRCs belt filter press systems cleanly manage the entire process through automated stages of chemical preparation, gravity thickening, and belt pressing. Constructed of stainless steel and highgrade plastics, belt filter presses are extremely resistant to fouling and corrosion.

Seeking the Optimum Approach to Generate VFA/rbCOD to

Influent PO4 mgP/L 4.2 calcs flow split to south % 40 output flow mgd 1 PO4 concentration mgP/L 400 Psequestration efficiency % reduction of recycle P 85 flow split of recycle stream to south % 50 assumed South VFA/PO4 ratio mgVFA/mgP 7.5 VFA in Primary Effluent mgCOD/L 25 assumed North VFA/PO4 ratio mgVFA/mgP 5 VFA in GTO mgCOD/L 175

Appendix 2C Treatment Process

The surplus waste sludge from SBR basins will be pumped to the sludge thickener. Two thickener tanks will receive the sludge, which contains large volumes of water. Thickening of sludge is used to concentrate the solids and reduce the volume. The thickened sludge requires less tank capacity and chemical dosage for stabilization and smaller

Design ExamplesDokuz Eylül University

Calculation of Oxygen Requirement Calculate oxygen requirement of a completemix activated sludge process treating domestic wastewater having flowrate of 0.25 m 3 /sec. BOD 5 concentration of settled wastewater is 250 mg/L. The effluent soluble BOD 5 is 6.2 mg/L. Increase in the mass of MLVSS is 1,646 kg/day. Assume that the temperature is 20 °C and the conversion factor, BOD 5 / BOD L

Water Treatment Concepts & Terms FlashcardsQuizlet

Start studying Water Treatment Concepts & Terms. Learn vocabulary, terms, and more with flashcards, games, and other study tools.High rate clarification. tube+plate, ballasted, dissovled aird10, d60, d90, used for headloss/backwashing calcs. Uniformity Coefficient. ratio of d60 to d10, as UC increases, uniformity dec. Filter

Design ExamplesDokuz Eylül University

Calculation of Oxygen Requirement Calculate oxygen requirement of a completemix activated sludge process treating domestic wastewater having flowrate of 0.25 m 3 /sec. BOD 5 concentration of settled wastewater is 250 mg/L. The effluent soluble BOD 5 is 6.2 mg/L. Increase in the mass of MLVSS is 1,646 kg/day. Assume that the temperature is 20 °C and the conversion factor, BOD 5 / BOD L

Distillation Column Tray Selection & Sizing1

The numbers of flowpaths of liquid on tray are 1, 2, 3 or 4 as per liquid capacity requirement of column. From a capacity viewpoint, a liquid rate greater than 6 gpm / inch of weir weir loading, is the rate at which a higher number of flow paths should be considered. The maximum allowable weir loading is 13 gpm/in of weir length.

Sharp Crested Weirs for Open Channel Flow Measurement

SharpCrested Weirs for Open Channel Flow Mesurement Harlan H. Bengtson, PhD, P.E. COURSE CONTENT 1. Introduction A weir is basically an obstruction in an open channel flow path. Weirs are commonly used for measurement of open channel flow rate. A weir functions by causing water to rise above the obstruction in order to flow over it. The height of

The High Rate ThickenerSolid Liquid Separation

Description. The HighRate thickeners became popular in the mid 1980's and are relatively newcomers to the sedimentation line of equipment. As already discussed previously Thickeners are a major component in a plant layout and occupy large spaces which may be saved by introducing highrate machines. Furthermore, they are normally positioned far away from the center of the plant so to allow

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High Rate Thickeners

Avoid PressureRelief System PitfallsAIChE

The saying, The most effective and efficient mitigation or elimination of risk is achieved at the earliest juncture and at the most fundamental level, can be applied to practically any discipline and any situation, including process safety and pressurerelief system design.In any project, there is the least amount of risk e.g., financial, safety, etc. and the greatest amount of control

Primary Sludge Fermentation for Reliable Biological

For 2 stage, just 1 new smaller size Static, fermenter/thickener needed, it has 40 dia. and 16 depth. The 2stage sys. also need 2new CMF, 350 K MG each. For UFAT sys, a same size fermenter/thickener will be needed as the 2nd fermenter/thickener. 2 new primary