Gravity Thickener Design Example - Wastewater Treatment
The G L is determined from data plots (see Figure 7.46.2) 0.52 lb/ft2/hr. The volume of sludge to be concentrated is 5200 gph (693.3 ft3/hr). The required. FIG. 7.46.2 Gravity thickener design data plots. Data plot procedure: 1.
(PDF) THICKENER DESIGN, CONTROL AND DEVELOPMENT
Given recent developments in thickener design and modelling, this should not be the case. ... It will discuss the in's and out's of filtration test work design, planning, and in particular data ...
TANK DESIGN & DETAILING Introduction
Add the design notes in Design Data table. 9. Total weight of the tank and centre of gravity should be added. 10. If any internal (or) external surface preparation is there, this notes also added. 11. Client gives any standards to be follow the tank detailing, that standard also should
Thickener - an overview | ScienceDirect Topics
The thickener was applied at various concentrations (0, 4, 8, or 12 g/l) in the pretreatment bath to determine the effect of cationization on the optimal level of thickener. The concentrations of soda ash and urea in the pre-treatment were 40 and 100 g/l respectively.The fabrics, untreated cotton and cotton cationized with 100 g/l reactant, were printed with the cyan ink at 360 and 720 dpi ...
[PDF] DESIGN OF ' THICKENER CIRCUITS | Semantic Scholar
DESIGN OF ' THICKENER CIRCUITS. @inproceedings {Keane2007DESIGNO, title= {DESIGN OF ' THICKENER CIRCUITS}, author= {J. Keane}, year= {2007} } J. Keane. Published 2007. Introduction Feed dilution or solids-liquid weight The English word "sedimentation" ratio is derived from the Latin verb "sedere" Size and shape of the particulate meaning to ...
Chapter 5. Concrete Design and Construction Details
Concrete Structural Design Design all concrete facilities with two criteria in mind: 1. Design walls and floors to resist the potential tank loads and the hydrostatic and wheel loads that they may be subjected to. Liquid fertilizers are heavier than water and hydrostatic design loads range from to 70-100 lb/ft3-ft of depth. The most common liquid
A Basic Introduction to Rheology
shear thickening. Materials exhibiting shear thickening are much less common in industrial applications than shear thinning materials. They do have some useful applications such as in shock absorbers and high impact protective equipment but for the most part shear thickening is an unwanted effect which can lead to major processing issues.
Chapter 5 Sludge treatment - Islamic University of Gaza
0Design a gravity thickener to treat a combined primary and activated sludge. The following data is given:- Primary sludge:- 500 /, 1100, 5% 3 3 S m kg QP m d SL Secondary sludge (activated sludge):- 150 /, 1040, 1% 3 3 S m kg Qs m d SL Thickener design criteria:- - LS = solids loading rate = 50 kg/m2.d (assumed)
CHAPTER 3 SLUDGE THICKENING - Marmara
The design involves selecting a typical solids flux and calculating the required surface area by dividing the anticipated solids feed by the flux [3]. Area of the thickener: 2. Design based on Iaboratory data First Approach: It is the best technique if the Iaboratory data is available. Typical test is done by using a 1000mL-graduated cylinder.
Thickener design methods pdf - BitBin
thickener design calculations pdf. The flux curve determined by the method of Coe and. Clevenger was invalid for all feed fluxes. A case study shows how the required thickener area would vary. Design of gravity thickener is the concern of this chapter. 20.2 Methods of Thickener Design. 20.2.1 Coe and Clevenger's Method (1916).
Improve Clarifier and Thickener Design and Operation
Thickener area required is then calculated by applying above determined data in the following formula: A = 1.333 (F – D)/R A = Thickener area in square feet per ton of dry solids thickened in 24 hours. F = Initial density (Parts Water to Solids by weight).
Developing MudMax™ for Paste Thickener Bed-Level Measurement
Developing MudMax™ for Paste Thickener Bed-Level Measurement. Numerous studies and papers have been devoted to the subject of thickener design and operation to achieve specified throughput and discharge densities. Mathematical models have been developed that present methods for sizing thickeners and predicting performance under varying ...
SOLUBLE METAL RECOVERY IMPROVEMENT USING HIGH …
Data from laboratory thickener simulations was used to simulate various CCD design options. The CCD circuit design for Ruashi is shown in Figure 6 below. The CCD simulations calculate soluble metal recoveries for changes in the most important variables affecting CCD wash recovery which include:
Thickener Vane Feedwell - Outotec
The Vane FeedwellTM design ensures a highly efficient thickener operation. As a result, cost savings can be significant. {{decodeHtmlEntities(data.label)}} Contact our experts Your information is safe. Check our privacy notice for more details. Thank you! We will shortly contact you. You can send a new inquiry again after 15 minutes.
ThICKENERS - TENOVA
With more than a thousand operating thickeners - our drive design is well known to be highly reliable and can be operated hydraulically or electrically. As process plants seldom include standby thickeners, we focus on providing the ... concentric ring design. Operating data from one installation shows high feed volumes at 40 % being diluted to 12
SETTLING VELOCITY OF PARTICLES - Birla Institute of ...
the design of a thickener is thus reduced ... Data is to be used to design a settling tank to handle 0.03m3/second of slurry, with an underflow velocity of 0.05m/h. • Plot (a) Settling flux vs concentration, (b) transport flux vs concentration,(c) total flux vs concentration
Considerations and Parameters in Thickener Selection
Thickeners are, in addition, widely used in gravel plants for water reclamation. This gives excellent data on clay settling in some cases. Thickeners are used extensively for slurries generated by flue dust from wet scrubbers. Thickeners in flue dust applications are operating with considerable variations, treating blast furnace dust.
Most common problems in thickener operations (part 1)
Thickener design errors In thickener design, there are two specifications that will define the tank efficiency to process minerals: thickener area and drive torque. These specifications commonly have high variability and are required to adjust to the programmed processing tonnages during the …
Process Design Manual Sludge Treatment And Disposal
Experience shows that this has occurred. Gravity thickening data follows in Table 3-16. TABLE 3-16 GRAVITY THICKENING DATA FOR AIR AND OXYGEN ACTIVATED SLUDGES [18] Feed Type Oxygen EAS AirEAS Oxygen mixed Air mixed Sludge Percent Solids 1.7 0.9 2.3 1.1 Solids Loading (Ib/ft2/day) 10 20 -- 20 Underflow Cone.
GRAVITY THICKENING OF ACTIVATED SLUDGE
ever, is not enough for sufficient thickening of mixed liquer having sludge volume index in the rage of 200-500 ml/gm. Thus, the calcula-tions of area requirements should not be based solely on clarification data. It seems obvious in the design of secondary clarifiers that their thickening function be evaluated in conjunction with their ...
On the method of thickener area calculation based on the ...
Chemical Engineering Sdenee. Vol. 41, No. 1, pp. 1918 1920, 1986. 0009 2509/86 53.00+0.00 Printed in Great Britain. ~ Jow~~~ Ltd. On the method of thickener area calculation based on the data of batch-settling test (Received 7 May 1985, accepted in evised form 3 October 1985) Nearly all of the current methods for the thickener area calculation stem from the work of Cot and Clevenger …
base design of heavy thickener - pedicon2020.com
Design Data For Thickener. Improve Clarifier and Thickener Design and Operation. The typical design procedure will be shown using data from a large industrial wastewater treatment facility, involving acid and base neutralization and heavy metals removal. The objective is to determine the area of a thickener
Gravity Thickener Design Example - Wastewater Treatment
FIG. 7.46.2 Gravity thickener design data plots. Data plot procedure: 1. Conduct settling tests at various initial solids concentrations (a through d in panel A), covering the range of expected thickener influent solids concentrations; 2.
Thickening tests - Pocock Industrial
This test is used to design high rate, high density and paste type thickeners. Capabilities. Static and dynamic thickening test data can be collected to determine thickener sizing and operating parameters. The type of testing to be conducted will be determined by both the type of thickener desired (conventional, high-rate, high-density, etc ...
4 x Flowrate 4 x 200 π Riserate - MIP Process
MIP Thickener Design The following is a short cut to designing your own thickener: (a) Size of Thickener As a first stab we can either use the thickener flux (m. 2 /tpd) or the rise rate, depending if solids loading is the dominant (eg.
EPA 832-F-00-053 - September 2000
Centrifuge Thickening and Dewatering DESCRIPTION Centrifugal thickening and dewatering is a high ... Manufacturers should be consulted for design and performance data early in the planning stage. These data should be confirmed with other operating installations and/or through pilot testing.
Theory and Application of Thickener Design
design calculations to determine the required thickener area, the most important design parameter, and ultimately the maximum steady state underflow concentration that is possible for a given solids throughput. In addition, the capital cost ofa thickener will be dependent on the calculated required settling area. Therefore,
Data analysis of a paste thickener
The data set used for data analysis contains data from both of Yara's paste thickeners, but after discussions with plant experts the data analysis was limited to Thickener 1. The whole data set contained altogether 73 measurements from February 2017 to …
Thickeners and Clarifiers - TAKRAF
Thickeners and Clarifiers. DELKOR's thickener is a proven performer across a variety of applications ranging from the mining and minerals industry to industrial, chemical, water treatment and wastewater industries. With units of up to 100 m in diameter having been installed, the benefits of our DELKOR conventional, high-rate, high-density and ...
CHAPTER 12 Sludge Processing and Disposal
Thickener solids loading rates vary with the type of sludge. Some typical solids loading rates are given below in Table 12-2. These values shall be used for design unless other acceptable data are submitted. For loading rates of other type sludges, refer to Table 5.2 of the EPA Process Design Manual-Sludge Treatment and Disposal. Table 12-2