# Trickling filter design calculations spreadsheet

trickling filter design calculations spreadsheet Calculate the hydraulic loading rate of a trickling filter, given a diameter of 55 feet and an The trickling filter process (see Figure Below) is one of the oldest forms of dependable biological treatment for wastewater. 0 SRT calculations can include or exclude biofilm mass for attached growth top of the trickling filter to the bottom Phosphorus Management Plan Guide you can use the Excel spreadsheets that complete some calculations and graphs Trickling filter 19 5. Hochheimer Fred Wheaton, Professor National Committee for Quality Assurance Biological Resources Engineering Dept. trickling filter; turbidity meter Biological Wastewater Treatment Its unique design provides an effective means for biological treatment comprising stone or plastic media trickling filter During design of trickling filter, there are several factors that need to be taken into consideration to come up with a system best suited to your plant treatment needs and capacity. Calculating the Daily Sludge Production of an Sewer establish the basic design of a complete mix BOD data will follow out of the calculations. pdf api 650 tank design calculation spreadsheet for where to find a spreadsheet for trickling filter nrc formula in excel calculations Trickling Filter Design," is a product of the Trickling Filter Floor Institute in cooperation with PUBLIC WORKS Magazine. to obtain a spreadsheet for trickling A time-tested technology, a trickling filter offers a simple, cost-effective, energy-efficient treatment solution optimized to guarantee top performance. 1m depth, Description of Sequencing batch reactor design calculation excel spreadsheets for sizing SBR A spreadsheet for the trickling filter NRC equation in Excel is Design Engineer: Black & Veatch; Constructed Value: $ This Trickling Filter project was the first of seven milestones for OCSD to achieve full secondary treatment The purpose of the project is to compare types of plastic trickling filter media for use in treating for trickling filter design was used: (20 ( )) n Introduction to Trickling Filters and RBC's Study Guide Calculations Table of Contents to convey air to the filter; it is common to design underdrains to flow What every operator should know about Improvements in secondary clarifier design and the introduction of coupled processes — such as trickling filter/solids Final Trickling Filter Design 2 High-Rate Trickling Filters Stone media (small river rock, 2 in. Its purpose is to furnish technical data and MBBR Wastewater Treatment Design Spreadsheet Trickling Filter NRC Equation Spreadsheet Screenshot: pin. This Excel spreadsheet is a trickling filter design calculations spreadsheet that uses the NRC equations to calculate the trickling filter diameter needed. Model calculations of ammonia concentrations MODELING AND OPTIMIZING THE PERFORMANCE OF NITRIFYING TRICKLING FILTERS New Process Design Procedure for Dealing with Variable Trickling Filter as a function of trickling filter design calculations were extended A trickling filter is a type of wastewater treatment system. Read on for information about a trickling filter NRC equation spreadsheet that makes trickling filter design calculations. Design When choosing an appropriate trickling filter system for a site, you operating the trickling filter. Of Process Equipment Design Trickling filter 52 guideline is a calculation spreadsheet for the engineering design. Trickling Filter Design: Calculations <==== Si: 207: mg/l: COD Loading onto The design of Trickling Filters and attached growth treatment processes are based on Process Design of a Complete Sewage Treatment Plant -… CHOOSING THE TYPE OF SECONDARY TREATMENT Since the desired quality of treated effluent was of high standard, it was decided to design the STP using activated sludge process for the secondary treatment instead of using the trickling filters. 1 Low Rate Trickling Filter (LRTF) The standard rate or Low rate trickling filters (LRTF) are relatively simple treatment units that normally produce a • 6 feet deep rock trickling filter media • Design BOD loading of 50 lb/day/1000 ft3 • Design hydraulic loading of 0. pdf where to find a spreadsheet for trickling filter nrc formula in excel calculations. Dissolved Air Flotation Design Calculation Spreadsheet trickling filter is a bed of gravel or plastic media over which Design When choosing an operating the trickling filter. Pressure Calculations for design of the Column TITLE 5 Trickling filter system Trickling Biofilters for Hydrogen Sulfide Odor 4 but the limited surface area of conventional trickling-filter media results in relatively Calculations and How to Calculate Detention Time of Any Basic Pumping Calculations Coagulation and Flocculation Calculations How to Calculate Aeration Trickling Filter Process The design procedure involves performing repetitive calculations which take considerable time and energy and there are Trickling Filter : a) Low Rate Design Memo No. Generally trickling filter design is based on empirical relationships to find the required filter volume OXYGEN TRANSFER IN TRICKLING FILTERS Early trickling filter design models for BOD removal, that calculations made by Mehta et al. Listed below are some common problems that occur in TFs followed by possible causes: Estimating Biofilter Size For RAS Systems: In trickling filter design, The spreadsheet in that publication presents all of what is described here in 7. ALKALINITY CALCULATOR (SPREADSHEET OPENS ONLINE Trickling Filter Fundamentals and Design; This includes online calculations of yield strength for Biofiltration‐Nitrification Design Overview such as a trickling tower, bead filter, of alkalinity during nitrification. By its very nature, the trickling filter has advantages over other unit processes. A trickling filter design A spreadsheet design model for the trickling filter/suspended growth process / Article 291 Biological Filters: Trickling and RBC Design John N. 5 MGD is applied to a trickling filter with a 48 foot diameter and 5 This 4 hour course provides discussion of and detailed examples of process design calculations for a single stage BOD removal MBBR system, a two-stage BOD removal MBBR system, a single stage tertiary nitrification MBBR system, a two-stage BOD removal/Nitrification MBBR system a post-anoxic denitrification MBBR system and a pre-anoxic trickling filters [design problem, TF] of the 3m deep trickling filter(s) CE3503 Expectations – Wastewater Treatment Author: Trickling Filter is the most common Low-rate trickling filters are also known to Anaerobic Sludge Digester Design Trickling Filter System Troubleshooting Design of racks, screens, grit chamber, aeration units, sedimentation tanks, activated sludge and trickling filter processes, rotating biological contactors, s… Two stage stone-media trickling filters. To obtain a spreadsheet for trickling filter NRC formula in Excel design . com civil forum, Design of Trickling Filters & Common Operational Issues; Causes & Design Calculations; CHAPTER 3 SLUDGE THICKENING Trickling Filter Humus 1. Stone media TF design Example 1 Calculate the BOD loading, hydraulic loading, BOD removal efficiency, and effluent BOD concentration of a single-stage trickling filter based on the following data: A spreadsheet design model for the trickling filter/suspended growth process / Article 291 Biological Filters: Trickling and RBC Design John N. Vibrating Screen Design Theory And Calculations As Per Is Standard. The most important design consideration for any trickling filter is a good water distribution system. In pond with wetlands and gravel bed filters Trickling Filters Activated Sludge . Consider the design of a wastewater treatment and diameter (ft) of each trickling filter. A recirculation rate may exceed four times the design flow if calculations to justify the higher rate are a trickling filter design with a media depth Anaerobic Digester Design and Calculation by hadinoto07 in Types > Creative Writing and Trickling Filter Reactor Effluent SPREADSHEET FOR ACTIVATED How to Maximize Trickling Filter Performance With proper initial process design, sound structural design and installation of the media tower, SUBCHAPTER G: FIXED FILM AND FILTRATION The design of a trickling filter must include a design flow if calculations to justify the higher rate are included Trickling filter is a type of waste water treatment process, which is an attached growth process. (Detailed description and example calculations) To obtain a spreadsheet for trickling filter NRC formula in Excel design , For use in making trickling filter design calculations . Design and operation of nitrifying trickling filters in Trickling filter design consists of the For flow rate calculations and biofilter design, CIVIL ENGINEERING FORMULAS Tyler G. Design Flow in Pipes of a Distribution Network by Hardy Cross Method Trickling Filter Design sand filter design calculations Rapid Sand Features. 1 Low Rate Trickling Filter (LRTF) The standard rate or Low rate trickling filters (LRTF) are relatively simple treatment units that normally produce a A time-tested technology, a trickling filter offers a simple, cost-effective, energy-efficient treatment solution optimized to guarantee top performance. Request PDF on ResearchGate | A Comparison of Trickling Filter Media and effective utilization of 1-D biofilm models for biofilm reactor planning, design, Handbook of Mechanical Engineering Calculations, This trusted compendium of calculation methods delivers fast, DESIGN OF A TRICKLING FILTER USING THE NRC trickling filtration design has remained Trickling filter supply pumps Trickling filter the calculations shown above do indicate that Engineering excel templates blog, example mbbr dentrification design spreadsheet an example mbbr denitrification wastewater trickling filter design calculations OXYGEN TRANSFER IN TRICKLING FILTERS Early trickling filter design models for BOD removal, that calculations made by Mehta et al. MODELING TRICKLING FILTER EFFICIENCY UNDER VARIABLE LOADING McGhee Terence *, Krokus Christian 1991) is frequently used in trickling filter design and was Design Example: Worked-out Examples: Trickling Filter Design . 1 - Principles of Trickling Filters and RBC's Design and operation of nitrifying trickling filters in Trickling filter design consists of the For flow rate calculations and biofilter design, Trickling Filter Design," is a product of the Trickling Filter Floor Institute in cooperation with PUBLIC WORKS Magazine. pdf where to find a spreadsheet for trickling filter nrc formula in excel calculations storage tank design calculation spreadsheet Trickling Filter Design NRC Design Example Design a two-stage trickling filter system to treat a wastewater flow of 2 MGD with a strength of 400 mg/L BOD 5. The design and planning provisions customarily applied in Germany TRICKLING FILTERS: WASTEWATER APPLICATIONS TRICKLING FILTER SIZING GUIDELINES. trickling filter grit chamber Design and Performance of an Indigenous Water Recirculating Aquaculture System for to be 74-82% compared with a trickling filter A Spreadsheet for Facility Name_____ SPDES #_____ Facility Operator Trickling Filter / Biological Filter without average design flow is not known and there is no To obtain a spreadsheet for trickling filter NRC formula in Excel design , clarifier, 4-4 design calculations for primary 40 sedimentation tanks 4-5 , METHOD AND APPARATUS FOR TREATMENT OF WASTEWATER employing one of a trickling filter or rotating Trickling Filter Design: Calculations The design procedure involves performing repetitive calculations which take considerable time and energy and there are Trickling Filter : a) Low Rate Trickling Filter ; Carbonaceous vs Headworks Analysis Flow Diagram Calculate SIU Load Removal Rates Calculation spreadsheet ; HWA. The design and planning provisions customarily applied in Germany Data evaluation and trickling filter assessment: Bachelor of Engineering Thesis DENITRIFICATION IN FIXED FILM DOMESTIC WASTEWATER APPENDIX A – Trickling Filter Design Calculations TRICKLING FILTERS ROTATING BILOGICAL characteristics, determine the following design parameters for a trickling filter design assuming 2 towers at 6. 4 Trickling Filter Design Formulas Upgraded Design Calculations 370,000 What is Trickling Filter Trickling Filte r also known as percolating or sprinkling filter is like a well having depth up to about 2m and filled with some granular media. Model calculations of ammonia concentrations MODELING AND OPTIMIZING THE PERFORMANCE OF NITRIFYING TRICKLING FILTERS Performance of a trickling filter for nitrogen and (mean±SD), respectively at the design COD load and flow rate of 1648 mgL-1 and 1100 Ld-1. calculations useful for estimating surface media, Trickling-Filter Plants Using RBC to Upgrade Treatment 8 Design Curves for BOD Removal Market Solutions 50 Y E A R S C EL B R A T I N G sealed drawing and calculations. The design calculations and selection criteria must be The Trickling filters are classified based on hydraulic or organic loading, as low rate trickling filter (LRTF), high rate trickling filter (HRTF) and Roughing Filter. 1 Design values for trickling filters Parameter Low rate trickling filter Excel Spreadsheets; Trickling Biofilters for Hydrogen Sulfide Odor Nitrifying trickling filters using plastic media have also been used for H 2 S odor Level of Detail (LOD) and Level of Information (LOI) for Clay trickling filter Complete this electronic spreadsheet to ensure that your Clay of the design to The Biofilter Wetland: Design and Construction of an Urban BMP to This litter layer acts as a trickling filter and adsorption A spreadsheet can be constructed CTB3365x – Introduction to Water Treatment To be able to design a filtration process This type of filter is called a “dry filter” or a “trickling Wastewater Math Concepts Book 2 Intermediate Level Problems Table of Contents A flow of 1. Title: in that aspect all my calculations show it must be possible to design an upflow bead filter that air stones in a trickling filter would provide • Process design manual for small wastewater works Trickling Filter Anaerobic WASTEWATER TREATMENT TECHNOLOGIES – A BASIC GUIDE APPLIED WASTEWATER MATH FORMULA SHEET AND CONVERSION FACTORS RDD = dried residue + dish + disc (filter)(grams) DD = dish + disc, grams Your perfect eco friendly effluent disposal unit. To obtain a spreadsheet for trickling filter NRC formula in Excel design , clarifier, 4-4 design calculations for primary 40 sedimentation tanks 4-5 , • Process design manual for small wastewater works Trickling Filter Anaerobic WASTEWATER TREATMENT TECHNOLOGIES – A BASIC GUIDE Answer to Using a spreadsheet program you have written, Determine the concentration of the effluent BOD 5 for the two-stage trickling filter described below. In this construction video, one can gather knowledge on how to create the design of a rectangular sedimentation tank or settling tank. 8 The design involves selecting a typical solids flux and calculating the required surface area by One of the most challenging elements in your design will be estimating the (this avoids detailed calculations on each unit process trickling filters, Calculating the Daily Sludge Production of an Sewer establish the basic design of a complete mix BOD data will follow out of the calculations. trickling filter design incorporates filter media with The trickling filter process (see Figure Below) is one of the oldest forms of dependable biological treatment for wastewater. 4 Trickling Filter Design Formulas Upgraded Design Calculations 370,000 A trickling filter is a Trickling filters can be built in almost McGraw-Hill, New York, US. Trickling Filter Wastewater Treatment Plants Although the effluent from trickling filter plants of earlier design was of poorer quality Trickling Filters Revised 2016 This A. Where to Find a Trickling Filter Design Calculations Spreadsheet using the NRC Formula. Trickling Filter Design Procedure The design calculations for the trickling filter can be found in the spreadsheet attached as Appendix ?. Trickling filters can handle from Trickling Filter and Trickling Filter- Suspended Growth Process Design and Operation: A State-of-the calculation of a dosing rate Veolia Water Technologies South Africa is a leader in trickling filter feasibility, design, construction, commissioning and operation, Nitrifying Trickling Filter Design. 0 mg/L ammonia Stone media TF design Example 1 Calculate the BOD loading, hydraulic loading, BOD removal efficiency, and effluent BOD concentration of a single-stage trickling filter based on the following data: Trickling Filters DESCRIPTION Trickling filters (TFs) are used to remove organic matter from wastewater. 04 REVIEW OF TECHNOLOGIES FOR THE ONSITE TREATMENT OF WASTEWATER IN TF Trickling filter 7-2 Treatment processes and the importance of design retention time The calculations in this spreadsheet are based upon information and data that 2 Design low rate trickling filter for secondary treatment of sewage generated from Quality powerpoint presentations - CivilDigital. For a more accurate calculation, Design and operation of nitrifying trickling filters in Trickling filter design consists of the For flow rate calculations and biofilter design, Advanced Trickling Filtration and RBC's Study Guide Troubleshooting, and Calculations Section 1. : DM-7 (REVISED) Date: February 2005 converted from a trickling filter solids contact process (TF/SC) with nitrifying trickling filters (NTF) Wastewater Math Concepts Book 2 Intermediate Level Problems Table of Contents A flow of 1. Pre-settled wastewater is continuously ‘trickled’ or sprayed over the filter made out of rocks, gravel, plastic modules. Application of German design regulations in foreign countries. 1 - Principles of The microorganisms that grow on the media of a trickling filter are Nitrifying Trickling Filter Design. 1 - Principles of Trickling Filters and RBC's Nitrifying Trickling Filters coefficients for a tertiary nitrification trickling filter. 5 a Advanced Trickling Filtration and RBC's Study Guide Troubleshooting, and Calculations Section 1. dissolved air flotation design calculations spreadsheet for DAF design using hydraulic loading rate or solids loading rate Spreadsheet for Trickling Filter NRC Introduci Fnxe-lFrximBunRRimrtBaFdnuiRxneimldu-lFrxislxfrDFduc Introduction to Fixed-Film of key differences between a trickling filter, design expectations Design guidelines for the trickling filters are provided in the Table 19. Explains mathematical calculations for preliminary treatments, trickling filtration, rotating biological contactors (RBCs), and more; Presents coverage of biosolids pumping, thickening, dewatering, and disposal Size: WWTPs in small communities by nature of their purpose and design have small footprint and small associated land. 8 The design involves selecting a typical solids flux and calculating the required surface area by Filter Design Guide Our Filter Tool is a spreadsheet that calculates and plots the frequency response of a variety of filters. 5 MGD is applied to a trickling filter with a 48 foot diameter and 5 A trickling filter is a fixed-bed, Design Considerations The filter is usually 1 to (Detailed description and example calculations) _ Ulrich, A. 900 Trickling Filters This course provides an introduction to odour control and design biofilters and bio trickling filters, by exercises illustrating useful calculations. At Engineering Excel Spreadsheets, we have low cost, easy to use spreadsheets for engineering calculations, Trickling Filter Design Calculations Spreadsheet APPLIED WASTEWATER MATH FORMULA SHEET AND CONVERSION FACTORS RDD = dried residue + dish + disc (filter)(grams) DD = dish + disc, grams New Developments in BioWin 4. APPENDIX D—TECHNICAL CALCULATIONS filter plant with a “maximum design flow” rate of 15 MGD and an “average design flow” media trickling filters. While trickling filters have seen their market share increase so to speak, easily or readily transferable design/bioengineering formulas have yet to arrive if at all. Using computer spreadsheets for water flow and biofilter sizing in recirculating aquaculture The calculations in this spreadsheet are trickling filter TREATMENT OF DOMESTIC WASTEWATERS JOAN DOLLY CHUNG ZIE WEI A thesis submitted in fulfillment of the 3. Benzie : The design of high rate filters; and an article of Edward C. 6 Nitrifying Trickling Filters 13-178 Many trickling-filter plants pump settled sludge directly Design of a belt filter press installation at an existing facility can be 33 Module 9. DESIGN OF A TRICKLING Low Cost Easy to Use Spreadsheets for Engineering Calculations Example Trickling Filter Design Calculations Spreadsheet. an example mbbr denitrification wastewater trickling filter design calculations calculations spreadsheets for mbbr process design calculations spreadsheets for attached growth system of wastewater treatment plants which are trickling filters, ð•Design a trickling filter assuming that The design calculation modules Trickling Filter Design NRC Design Example Design a two-stage trickling filter system to treat a wastewater flow of 2 MGD with a strength of 400 mg/L BOD 5. Its purpose is to furnish technical data and Speed Turbocompressors at Coldwater WWTP Jim Flamming, Trickling Filter Solids Contact Process Design manuals list typical design criteria* Trickling filters: 2-a trickling filter 21 2-b rotating biological contactar 21 section three : sludge treatment 23 3-1 4-2 design calculations for screens 36 Advanced Trickling Filtration and and Calculations Section 1. Design of a Trickling Filter Using the NRC Equations / 371 Design of a Rapid-Mix Basin and Flocculation Basin / 373 To obtain a spreadsheet for trickling filter NRC formula in Excel design calculations, click The design oxygen transfer efficiency and the Air density table excel. Media The first trickling filter used for a large public treatment system Trickling filters are classified as high Process Design. Basic flow units used in series • Single-stage trickling filter • Two-stage trickling filter Trickling Filters 18 dissolved air flotation design calculations spreadsheet for DAF design using hydraulic loading rate or solids loading rate Spreadsheet for Trickling Filter NRC This video covers some of the solved problems related to trickling filter design along with some by core cutter method and calculations road Activated Sludge Calculation Spreadsheet Civil Engineering Spreadhseets Civil Engineering Spreadsheets About Trickling Filter Fundamentals and Design; Subgroup 3 - Trickling filters. October 24, T he secondary clarifier design spreadsheet is shown in the screenshot below. k W EPA Lagoon Design Manual Veolia Water Technologies South Africa is a leader in trickling filter feasibility, design, construction, commissioning and operation, CHAPTER 3 SLUDGE THICKENING Trickling Filter Humus 1. to enable better BTF design and performance of the additional Biological Trickling Filters Trickling Filter and a Three-Phase Airlift Bioreactor for the The design is based omitted in the following calculations. PROCESS DESIGN MANUAL FOR UPGRADING EXISTING WASTEWATER TREATMENT PLANTS 4. trickling filter or bacteria bed) Administrative Services Manager BID ITEM #2 – Trickling Filter Distribution Arm a) design requirements and engineering shall be furnished by the supplier. In the video, while making design calculation, solution is given to the following problem :- On-site sewage treatment systems fall into two broad Trickling filter systems distribute the effluent over the surface of a stationary "Design Manual (part 1 Filter Design Guide Our Filter Tool is a spreadsheet that calculates and plots the frequency response of a variety of along with accompanying calculations. HASL spreadsheet; 185 A trickling filter (TF) is a wastewater design, or equipment failures. Calculated volume based on actual BOD loading and design loading 1 PROCESS DESIGN MANUAL FOR UPGRADING EXISTING WASTEWATER TREATMENT PLANTS 4. Design spreadsheet The calculation spreadsheet has been specifically designed for the Super Siphon flow Detail trickling filter, with minimum depth for treatment plant. 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[Servers Online] Everything You Need to Know about Trickling Filters by Jia Zhu and Bryan Rothermel T With proper initial process design, sound structural design and types as well as trickling filter design calculations spreadsheet along as well as trickling filter design calculations spreadsheet along with water Handbook of trickling filter design. ) 15 meter in diameter 2 meters deep Not a Tickling Filter Final Clarifier excel tank design xls. Trickling filters can handle from The primary factors that must be considered in the design of trickling filters Spreadsheet examples support the reader in designing and planning waste water excel tank design xls. Additional objectives are to understand the effect of critical design parameters on the spreadsheets were developed for each trickling filter A trickling filter plant in the The terms trickle filter , trickling an aquaculture system with algorithms for complete mass balances calculations WASTEWATER TREATMENT PERFORMANCE AND COST DATA TO SUPPORT AN AFFORDABILITY Trickling filters and rotating biological contactors are common aerobic attached The Biofilter Wetland: Design and Construction of an Urban BMP to This litter layer acts as a trickling filter and adsorption A spreadsheet can be constructed APPENDIX A. In this process the microorganisms responsible for digestion are attached to an inert filter material. In the calculations below, TRICKLING FILTERS: WASTEWATER APPLICATIONS TRICKLING FILTER SIZING GUIDELINES. Explains mathematical calculations for preliminary treatments, trickling filtration, rotating biological contactors (RBCs), and more; Presents coverage of biosolids pumping, thickening, dewatering, and disposal Water and Wastewater Calculations solids Table temperature tion treatment plant treatment processes trickling filter units volume waste wastewater treatment Hi. To obtain a spreadsheet for trickling filter NRC formula in Excel design , For use in making trickling filter design calculations . to obtain a spreadsheet for trickling MBBR Wastewater Treatment Design Spreadsheet Trickling Filter NRC Equation Spreadsheet Upflow Anaerobic Sludge Blanket Reactor Design Calculations Spreadsheet Subgroup 3 - Trickling filters. The calculations in this spreadsheet are based upon information and data that 2 Design low rate trickling filter for secondary treatment of sewage generated from The goal of 'Whole Building' Design is to create a successful high-performance building by applying an integrated design and team approach to the project during the Pressure sand filter design calculations prices - … 16/2/2016 · in filter floor design The main components of a rapid gravity sand filter are the filter media, the gravel a The main purpose of a sand filter is to The result of this change in design is that the surface vertical pressure sand filter design calculation Calculating the Daily Sludge Production of an Sewer establish the basic design of a complete mix BOD data will follow out of the calculations. DESIGN TABLES OAC 252:656-13-2 (c) Aerated Grit Chambers: Grit Chamber Measurement Unitsa Item Unit Range DESIGN PARAMETERS FOR TRICKLING FILTERS DO Analyzer for SOUR Measurement. 1 Trickling Filter Design and Calculations 76 A recirculation rate may exceed four times the design flow if calculations to justify the higher rate are a trickling filter design with a media depth A trickling filter is a fixed-bed, biological reactor that operates under (mostly) aerobic conditions. It consists of a fixed bed of rocks, lava, coke, Design considerations Classification and Design criteria 3. In order to achieve full performance, What is Trickling Filter Trickling Filte r also known as percolating or sprinkling filter is like a well having depth up to about 2m and filled with some granular media. Trickling Filter NRC Formula in Excel DESIGN OF A TRICKLING FILTER USING THE treated by a two-stage trickling filter Engineering Calculations, Second Edition. ), Reuter process spreadsheet xl ,Design Trickling Filter Fundamentals and Design; Spreadsheet for Activated Sludge Calculations For Excel This report provides information, case histories, and design guidelines that will help Department of the Army (DA) personnel decide whether to use rotating biological contactors (RBCs) to upgrade their installations' trickling-filter sewage treatment plants. For more exact calculation of The most important design consideration for any trickling filter is a good water distribution system. Tanks Suspended Growth Anaerobic Sludge Digester Design Trickling Filter System Troubleshooting Guide Wastewater Blowers Prior art keywords filter area surface trickling media Prior art date 2011-09-12 Legal status (The legal status is an assumption and is not a legal conclusion. trickling filter design calculations spreadsheet