SHEET...WATER OPERATOR EXAM FORMULA SHEET 4/2008 1 foot = 12 inches 1 minute = 60 seconds cfs = cubic feet per second 1 inch = 2.54 centimeters 1 hour = 60 minutes gpm = gallons per minute File Size: 49KBPage Count: 3

  • Chlorination/Dechlorination of Wastewater

    es2inc.com/wp-content/uploads/2011/07/Chlorination-De...Feed forward systems use a flow signal representing plant flow at the chemical injection point and a chlorine residual signal measured upstream of the sulfur dioxide injection point. These signals are directed to a controller that proportions the feed rate of sulfur dioxide to the amount of residual chlorine to be removed from the water supply.

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    /watch?v=eavbtRNxhHM CachedJan 20, 2018 · Learn How to calculate chlorine dose in this video, using the our Five Step Process to solving math problems. Visit our website: americanwatercollege.org Send us an email: info ... Views: 44.7KAuthor: American Water CollegeVideo Duration: 5 min

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    /city/ltu/engine/dconst/gpp/...Continuous Feed Method With the continuous feed method, water entering the new main receives a dose of chlorine fed at a constant rate such that the water will have a concentration not less than 25 mg/L free chlorine. Chlorine application continues until the entire main is filled with 9.0

  • Water Research Center - Chlorination of Drinking Water

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  • Example Calculations of Chlorine Dosage

    /drinking_water/programs/...chlorine residual of 1.5 mg/L, multiply the feed rate by 1.5 (68.9 mL/min x 1.5) and the required feed rate is 103 mL/min. Note: If flow exceeds the table value (i.e., 80 gpm), then lookup the chemical feed rate for 40 gpm and File Size: 175KBPage Count: 5

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    Here is an example of how to calculate the dose for your chemical feed pump to inject Fluorosilicic Acid. • Remember 1.0 ppm is the optimum level. • The natural level in our well is 0.3 ppm. • 1ppm - 0.3ppm = 0.7ppm. This means we need to set our pump to inject 0.7 ppm. • In this example our well pumps 600 gallons per minute. File Size: 18KBPage Count: 2

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    iv Flows ..... 171 File Size: 602KBPage Count: 240


    10...• Use a graduated cylinder and stop watch to calibrate the feed rate of the pump and make any necessary adjustments. • After the feed has started, check the water samples for the proper fluoride concentration. These samples should be taken at least 100 feet from the point of fluoride application.

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  • Chlorine Dilution Calculator | Public Health Ontario

    CachedChlorine Dilution Calculator This easy-to-use calculator tells you how much bleach product to dilute with water to get your desired concentration (ppm) of chlorine solution. It is intended for use by public health units, health care facilities, child care centres, swimming pool operators, and the general public (e.g., for disinfection of wells ...

  • Basic Water and Wastewater Formulas

    Chlorinator feed rate is 4.0 mg/L Chlorine residual (free) is 1.8 mg/L a. 0.8 mg/L b. 2.2 mg/L c. 4.0 mg/L d. 5.8 mg/L Solution: If solution strength is not given, then use 100% Often more information is given than needed to solve specific problems. In this problem, the raw water flow rate (0.75 MGD) is not needed. The equation to be used is ...

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  • Problem Solved: Chlorinator Feed Rate Problem - Wastewater ...

    /watch?v=Lx7Tlniv3zY CachedMar 26, 2012 · Show the calculations to find the proper chlorinator feed setting (in pounds of chlorine per day), given the following information: Average Plant Flow Rate 9.0 MGD - MLSS Conc. 2850 mg/L Views: 13.5KAuthor: American Water CollegeVideo Duration: 3 min

  • Sizing Chemical Feed Pump - Vitasalus, Inc.

    SizingChemicalFeedPump.pdfIn the example above, our "required feed rate" is 0.41 gpd. This feed rate is closer to 1-1.5 gpd for 3 gpd pump vs. the 3-5 gpd of 10gpd pump. Therefore we would choose the 3 gpd pump based on this calculation. However, as indicated we need to run between 1-1.5 gpd to maximize efficiency and were only at 0.41 gpd, therefore we will dilute ... File Size: 153KBPage Count: 2

  • Chemical Pump Dosing Rates Spreadsheet - HydroFlo Tech

    chemical-pump-dosing-rates-spreadsheet CachedChemical Pump Dosing Rates Spreadsheet Below is a link to a spreadsheet developed by HydroFlo Tech. By inputting the major design criteria, you can solve for total chemical consumption as well as GPM & GPH dosing rates.

  • Exam Study Guide: Changing Chlorine… | Treatment Plant Operator

    CachedNov 14, 2019 · Water Treatment Sample Question. A chemical feed pump is delivering 12.0 mL/min of 10% NaOCl to the clearwell. What is the chlorine demand if the flow rate through the clearwell is 320,000 gallons per day and the chlorine residual in the clearwell effluent is 1.1 mg/L? A. 0.00 mg/L B. 0.33 mg/L C. 1.10 mg/L D. 1.43 mg/L. Answer: The correct ...

  • Advanced Disinfection Study Guide

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    - 5 - WATER OPERATOR EXAM FORMULA SHEET Rev. 6/2009 Page 1 of 3 1 foot = 12 inches 1 minute = 60 seconds cfs = cubic feet per second 1 inch = 2.54 centimeters 1 hour = 60 minutes gpm = gallons per minute File Size: 548KBPage Count: 88

  • Feed Pumps: Selecting Size and Setting Feed Rate – Pure Water ...

    feed-pumps CachedHow to Select the Right Size and How to Set the Feed Rate. Before you purchase a chemical feed pump, you should know essentially how many gallons per day it will need to supply. To determine this, there are few things you need to know. 1. The Output Rate of your well pump. 2. The Dosage Requirement for the chemical(s) you are going to feed into ...

  • Sodium Hypochlorite General Information Handbook

    Sodium hypochlorite after production will decompose due to initial strength and pH, storage temperature, sunlight, and contaminants such as heavy metals and suspended solids such as calcium and magnesium. The normal rate of sodium hypochlorite without salt, sunlight, heavy metals and contaminants (which can be easily -)

  • Chlorine Dose Worksheets - Lesson Worksheets

    lessonworksheets.com/concept/chlorine-dose CachedChlorine Dose. Displaying all worksheets related to - Chlorine Dose. Worksheets are Calculating the chlorine dosage using 5 to 15 available, Sample calculations chlorine feed rate, Water treatment math, Appendix atsdr minimal risk levels and work, Emergency chlorination plan, Adjusting chemical levels in a swimming pool, Pool care water testing guide, Chlorine chemistry for water and waste ...

  • How do I calculate the amount of sodium thiosulfate needed to ...

    support.hach.com/app/answers/answer_view/a_id... CachedUsing the Hach thiosulfate standard solution Product # 2409353: Use 1.13 mL of 0.0250 N thiosulfate standard solution for every milligram of chlorine The amount in milligrams of Cl2 in a sample = (concentration result from a chlorine test) x (the number of liters of sample that is being treated). Example: 500 mL sample of 2.0 mg/L = 1 mg Cl2.

  • People also ask How to calculate chlorine pounds per day? Multiply the result by the desired concentration of chlorine in milligrams per liter. For the example, a desired concentration of 4 milligrams per liter would be multiplied by 12.51 to yield a result of 50 pounds of chlorine per day. Finding the Concentration of a Solution Check the flow rate of the facility in million gallons per day (MGD). How to Calculate Chlorine Dose | Sciencing

    sciencing.com/how-8524473-calculate-chlorine-dose.htmlSee all results for this question How much chlorine do I need to use in my solution? This solution must remain on those wetted surfaces for at period of least 30 minutes. You calculate that you will need 550 gallons of the 200 mg per liter solution. You will use a sodium hypochlorite solution that is 12.5% available chlorine. CALCULATING THE CHLORINE DOSAGE USING: 5% TO 15% AVAILABL…

  • SAMPLE CALCULATIONS: Chlorine Feed Rate

    web.cecs.pdx.edu/~fishw/UO-SAMPLE CALCS-Cl2-Feed.pdfSAMPLE CALCULATIONS: Chlorine Feed Rate Chlorine is added to water to kill any disease-causing organisms which may be present in the water or may enter the water as it travels through the distribution system. The two expressions most often used to describe the amount of chlorine added or required are milligrams per liter File Size: 86KBPage Count: 3


    web.cecs.pdx.edu/~fishw/UO_HOCl Solution Calculations.pdf(0.00055 MG)(8.34)(200) = 0.92 lbs PURE chlorine Now we do something different as we need to find the number of pounds of liquid sodium hypochlorite to put into the disinfecting water. (X lbs of sodium hypochlorite)(0.125 avail Cl2) = 0.92 lbs PURE chlorine We now solve for the number of pounds of sodium hypochlorite that will have File Size: 147KBPage Count: 3

  • How to Calculate Chlorine Dose | Sciencing

    sciencing.com/how-8524473-calculate-chlorine... CachedMultiply the result by the desired concentration of chlorine in milligrams per liter. For the example, a desired concentration of 4 milligrams per liter would be multiplied by 12.51 to yield a result of 50 pounds of chlorine per day. Finding the Concentration of a Solution. Check the flow rate of the facility in million gallons per day (MGD ...

  • Chlorine-Ammonia Treatment Calculations - PiphatChol

    piphatchol.com/Catalog/2016/!Gas_Feed_Documentation/Gas...With the 3 to 1 ratio of chlorine to ammonia is required, the following chlorine and ammonia feed rates are necessary: 9 PPD (170 g/h) chlorine feed 3 PPD (57 g/h ) ammonia feed Example 2: Water contains chlorine but no ammonia Flow rate: 1000 GPM (227 m3/h) Existing chlorine: 1 ppm (1 mg/l) Existing ammonia: 0 ppm (0 mg/l) File Size: 318KBPage Count: 2

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