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### Basic Water Treatment Math Formulas for Surface and

Revised 9/15 CONSTANTS 1. 2.54 centimeters = 1 inch 2. 3.28 feet = 1 meter 3. 43,560 square feet = 1 acre 4. 640 acres = 1 square mile

### Basic Water Treatment Math Formulas for Surface and

Revised 9/15 CONSTANTS 1. 2.54 centimeters = 1 inch 2. 3.28 feet = 1 meter 3. 43,560 square feet = 1 acre 4. 640 acres = 1 square mile CALCULATING THE CHLORINE DOSAGE USING:5% TO CALCULATING THE CHLORINE DOSAGE USING:5% TO 15% AVAILABLE CHLORINE SODIUM HYPOCHLORITE ( NaOCl ) We will modify some of those previous examples and problems that we used with "pure" chlorine by adapting them for disinfection using liquid sodium hypochlorite. CALCULATING THE CHLORINE DOSAGE USING METHOD 2 (200 mg/L solution) EXAMPLE:

### CHLORINE DOSAGE CALCULATIONS AND

If there is no chlorine demand, the residual should equal the dose. The greater the chlorine demand, the lower the residual will be. Note that for all chlorine residual concentrations in water, values in parts per million (ppm) are equivalent to values in milligrams per liter (mg/L) (for example, 10 ppm = 10 mg/L). CalcVerter:Chlorine Dosage Calculator - Rate of Dose Calculate rate of dose, demand and residual values in a water using this free chlorine dosage calculator tool. Formula:Chlorine Dosage (mg/L) = Demand (mg/L) + Residual (mg/L) Note :Type any two known values for calculation Chlorine Dosage Calculator

### Calculate A Parts Per Million (ppm) Solution Of Sodium

1. Final chlorine solution volume = 100 litres = 100,000ml (because 1 litre = 1000ml) 2. Final chlorine solution concentration desired = 200ppm. 3. Initial chlorine solution concentration = 12.5% solution = 125,000/1,000,000 which can also be eed as 125,000 parts per million (ppm) because 1ppm = Chloramines / Combined Chlorine - IndianaThe breakpoint chlorination value is 10 times the combined chlorine (CC) level. For example:0.8 ppm (CC) from the above example × 10 = 8 ppm of chlorine to achieve breakpoint. Taking into account the free chlorine all ready in the pool, chlorine will have to be added to the level of 8 ppm. Determine the Amount of chemical to add*:

### Chloramines 101 - tceq.texas.gov

Free chlorine increases with dose, free ammonia is not present (Cl:N above 7:1) Add chlorine in increasing amounts Calculate the Cl:N ratio to decide how much Draw a graph of Total Chlorine (Y axis) and Ammonia For example, a Nitrification Action Plan (A topic for another presentation). 41 . Chloramines 101 - tceq.texas.govFree chlorine increases with dose, free ammonia is not present (Cl:N above 7:1) Add chlorine in increasing amounts Calculate the Cl:N ratio to decide how much Draw a graph of Total Chlorine (Y axis) and Ammonia For example, a Nitrification Action Plan (A topic for another presentation). 41 .

### Chlorine - US EPA

The Reference Dose (RfD) for chlorine is 0.1 milligrams per kilogram body weight per day (mg/kg/d) based on no observed adverse effects in rats. The RfD is an estimate (with uncertainty spanning perhaps an order of magnitude) of a daily oral exposure to the human population (including sensitive subgroups) that is Chlorine - US EPAThe Reference Dose (RfD) for chlorine is 0.1 milligrams per kilogram body weight per day (mg/kg/d) based on no observed adverse effects in rats. The RfD is an estimate (with uncertainty spanning perhaps an order of magnitude) of a daily oral exposure to the human population (including sensitive subgroups) that is

### Chlorine Amounts Necessary for Disinfection Pure Water

Regular supermarket grade bleach contains 5.25% chlorine. Basic chlorine pellets used in dry pellet chlorinators are around 70% to 75% calcium hypochlorite. Example of a practical application. To disinfect your 50 gallon hot water heater requires 1.5 cups of bleach left in the tank for two hours or 3/4 cup of bleach left overnight. Chlorine Amounts Necessary for Disinfection Pure Water Regular supermarket grade bleach contains 5.25% chlorine. Basic chlorine pellets used in dry pellet chlorinators are around 70% to 75% calcium hypochlorite. Example of a practical application. To disinfect your 50 gallon hot water heater requires 1.5 cups of bleach left in the tank for two hours or 3/4 cup of bleach left overnight.

### Chlorine Concentration Adjustment Calculator for Water

All these information is used to make this calculator. This calculator can be used to adjust the chlorine concentration of water to disinfect it for drinking and also for other applications. Typical levels of free chlorine (or residual chlorine) in drinking water are 0.2 - 2.0 mg/L though levels can be as high as 5 mg/L. Chlorine that is added Chlorine Contact Time CalculationsResidual chlorine concentration = 0.1 mg/L free chlorine, measured before the first customer Pipeline has a diameter of 12 inches and a length of 1,000 feet between the chlorine injection point and the first customer. Peak hour flow = 200 gpm pH = 6.6 Temperature = 20°C FIND If the water system is providing 4-log virus inactivation.

### Chlorine Contact Time Calculations

Residual chlorine concentration = 0.1 mg/L free chlorine, measured before the first customer Pipeline has a diameter of 12 inches and a length of 1,000 feet between the chlorine injection point and the first customer. Peak hour flow = 200 gpm pH = 6.6 Temperature = 20°C FIND If the water system is providing 4-log virus inactivation. Chlorine Contact Time CalculationsResidual chlorine concentration = 0.1 mg/L free chlorine, measured before the first customer Pipeline has a diameter of 12 inches and a length of 1,000 feet between the chlorine injection point and the first customer. Peak hour flow = 200 gpm pH = 6.6 Temperature = 20°C FIND If the water system is providing 4-log virus inactivation.

### Chlorine Demand/Requirement DOC316.53

14. Calculate the actual amount of chlorine concentration. Refer to Chlorine addition calculation on page 5. Increase or decrease the quantity of Chlorine Dosing Solution based on the estimate organic level of the sample water and chlorine contact time. 15. Do steps 814 again for the remaining bottles. Increase the dose of Chlorine Dosing Chlorine Dilution Calculator Public Health OntarioChlorine 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

### Chlorine Dioxide, Chlorite and Chlorate in Drinking-water

BMD benchmark dose BMD 10 benchmark dose for a 10% response BMDL 10 lower 95% confidence limit for the BMD 10 bw body weight CAS Chemical Abstracts Service CT concentration × time DPD N,N-diethyl-1,4-phenylenediamine sulfate F 0 CHLORINE DIOXIDE, CHLORATE AND CHLORITE IN DRINKING-WATER 2 . 3 ) 4 . Chlorine Dosage Calculator:How to Size Metering Pumps Gallons (or liters) per minute at point of chlorine injection:Gallons Liters:Parts Per Million of Applied Chlorine Dosage:ppm (from 0.2 to 200ppm) Concentration of bleach you will be using:% (from 1% to 12.5%) How many gallons or liters of bleach solution you will use for every 24 hours the well pump is pumping? Gallons Liters

### Design and performance of chlorine contact tanks.

of waste water effluents, the chlorine dosage must be increased resulting in significant increases in operational costs. In addition to being beset with the problems of dead spaces and short cir­ cuiting, contact tanks also suffer from the problems of solids accumulations that putrefy and exert undue chlorine Dosage CalculationsDosage calculations Example 3 An effluent is treated with 15 mg/L of chlorine. How many kilograms of chlorine are required each day for a flow of 8,500 m 3 /day? (15 mg/L) (8,500 m 3 /day) (1,000 L/m 3) (1 kg/10 6)=127.5 kg/day In this example, we multiplied the concentration of Cl 2 by the flow and converted the units. Example 3

### Example Calculations of Chlorine Dosage

Example Calculations of Chlorine Dosage . Note:Percent sodium hypochlorite (%NaOCl) is based on weight per volume (w/v) in the equations below. Specific gravity is incorporated as part of the solution strength (% w/v). Equation 1A:Average Dose - Chlorine dosage (mg/L) measured as Cl. 2:Eq. 1A:Cl. 2. Dosage, mg L = How to Calculate Chlorine Dose SciencingHow to Calculate Chlorine Dose. Water treatment plants convert fresh water into potable drinking water, removing contaminants and killing bacteria that are harmful when ingested. A common method of cleaning the water being processed is with the use of chlorine. When using chlorine

### How to Calculate Chlorine Dose Sciencing

How to Calculate Chlorine Dose. Water treatment plants convert fresh water into potable drinking water, removing contaminants and killing bacteria that are harmful when ingested. A common method of cleaning the water being processed is with the use of chlorine. When using chlorine SAMPLE CALCULATIONS:Chlorine Feed RateSAMPLE 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 eions most often used to describe the amount of chlorine added or required are milligrams per liter

### TECHNICAL GUIDELINES FOR DETERMINING

Examination of Water and Wastewater to determine the initial chlorine dosage. It is important to note that inorganic compounds found in groundwater such as iron, manganese, and sulfides will initially reduce the chlorine residual (i.e. create a chlorine demand), and these must be accounted for when determining the initial dosage. TECHNICAL GUIDELINES FOR DETERMINING Examination of Water and Wastewater to determine the initial chlorine dosage. It is important to note that inorganic compounds found in groundwater such as iron, manganese, and sulfides will initially reduce the chlorine residual (i.e. create a chlorine demand), and these must be accounted for when determining the initial dosage.

### Vita-D-Chlor - Calculators

3.25 pounds of Vita-D-Chlor will neutralize one gallon of sodium hypochlorite 12.5% (1.26 pounds of chlorine per gallon) One gram of Vita-D-Chlor will neutralize 1 ppm (part per million) chlorine in 100 gallons of water Two pounds (approximately one kilogram) of Vita-D-Chlor will neutralize 1 ppm chlorine in 100,000 gallons of water WATER OPERATOR EXAM FORMULA SHEETChlorine dose (mg/L) = chlorine demand (mg/L) + chlorine residual (mg/L) mL of sample . x 1,000 . Hardness = mL of sample mL of EDTA x 1,000 . FLOW DETENTION TIME PERCENT . WATER OPERATOR EXAM FORMULA SHEET . Continued (Page 3 of 3) Chemical Feed Setting (mL/min) =

### Water Treatment Design Lecture-13 Chlorination

Example 4 log Calculation Baffling 1 Factor Example with 2500 m 3/hr :Chlorine tank:20 min => 840 m 3 UV channel:TAK 9-5x2i1 HP including safety equipment required Chlorine in Waste Water. Operational Costs Chlorine dosage (< 1.000 FC/100ml):raw or primary treated effluent:10 25 mg/l secondary treated effluent:4 - 10 mg/l Water Treatment Math Chlorine Dose Calculation Jan 20, 2018 · Learn how to calculate Chlorine Dose in this video. This is an example of our Five Step Process to solving math problems. If you are preparing for a certification exam, you may be interested in our FREE Exam Tips or in signing up for one of our Exam Prep courses. We are here to help you achieve your career objectives.

### Water Treatment Math Chlorine Dose Calculation

Jan 20, 2018 · Learn how to calculate Chlorine Dose in this video. This is an example of our Five Step Process to solving math problems. If you are preparing for a certification exam, you may be interested in our FREE Exam Tips or in signing up for one of our Exam Prep courses. We are here to help you achieve your career objectives. Water Treatment MathDosage Example:If a given water source had a chlorine demand of 3 mg/L and you wanted a chlorine residual of .5 mg/L leaving the plant, what would your dose be? Dosage, mg/l = (Demand, mg/l) + (Residual, mg/l) Chlorination box 2 1. If the chlorine dose added to drinking water equaled 10 mg/L and the chlorine demand

### free chlorine presentation.ppt

Chlorine Dosage Chlorine Residual Calculate Initial Demand (Reducing Agent Demand) 1.173 mg/L Demand (2.421 mg/L) Total Reducing Agent Free Chlorine Cl 2 Demand Demand Factor Water Quality (Example mg/L) Free Chlorine vs Lack of Cl 2 Oxidation potential:ORP Disinfection Protection Taste & Odor Control Fe/Mn Oxidation H2S Destruction free chlorine presentation.pptChlorine Dosage Chlorine Residual Calculate Initial Demand (Reducing Agent Demand) 1.173 mg/L Demand (2.421 mg/L) Total Reducing Agent Free Chlorine Cl 2 Demand Demand Factor Water Quality (Example mg/L) Free Chlorine vs Lack of Cl 2 Oxidation potential:ORP Disinfection Protection Taste & Odor Control Fe/Mn Oxidation H2S Destruction

### Example Calculations of Chlorine Dosage - California

Example Calculations of Chlorine Dosage Note:Percent sodium hypochlorite (%NaOCl) is based on weight per volume (w/v) in the equations below. Specific gravity is incorporated as part of the solution strength (% w/v). Equation 1A:Average Dose - Chlorine dosage (mg/L) measured as Cl2: