A JAR test was conducted on untreated water with an initial turbidity of 10 NTUs and...
A JAR test was conducted on untreated water with an initial turbidity of 10 NTUs and a HCO3- concentration of 50 mg/L as CaCO3. From the data obtained from the JAR test, the estimate optimum alum dosage of turbidity removal is 20 mg/L. Alum is added as dry alum (molecular weight is 594 g/mole). Calculate the theoretical amount of alkalinity that will be consumed at the optimal dose
Homework Answers
Add Answer to:
A JAR test was conducted on untreated water with an initial
turbidity of 10 NTUs and...
8.7 Ferric sulfate is available as a commercial coag- ulant and is popular at removing turbidity and color. The chemical reaction for its addition to water is Results of a jar test to determine t...
8.7 Ferric sulfate is available as a commercial coag- ulant and is popular at removing turbidity and color. The chemical reaction for its addition to water is Results of a jar test to determine the optimal coagu- lant dose are provided below. The initial water sam- ple has a pH 6.5, turbidity of 30 NTU, and alkalinity of 250 mg/L as CaCO Ferric Sulfate dose, mg/L |5 1015 | 20 Turbidity, NTU 25 151 5 1 0.92 (a) What is...
Problem 1. The alkalinity in raw water entering a drinking water plant can decrease during sig-...
Problem 1. The alkalinity in raw water entering a drinking water plant can decrease during sig- nificant rainfall events. Jar tests showed an optimal alum (MW 594) dosage of 35 mg/1. If the raw water contains an alkalinity concentration of 25 mg/1 as CaCOs and a pH of 7.5, does sufficient alkalinity exist to buffer a decrease in pH?
Example 8: A 10 MGD (million gallons per day) surface water treatment plant proposes to use...
Example 8: A 10 MGD (million gallons per day) surface water treatment plant proposes to use alum coagulation for turbidity reduction using 45 mg/L alum! dosage. The raw water has an alkalinity of 20 mg/L as CaCo,. Commercial alum has the formula Al(SO2)2.144,0 (MW = 594). Determine the daily alum dosage required in kg/d. Z.6 -> EW - 99
Problem 1. (29 pts) Jar testing for the water treatment system with a design flow of...
Problem 1. (29 pts) Jar testing for the water treatment system with a design flow of 37,843 m/d indicates a ferric chloride dosage of 50 mg/L is optimal. The raw water suspended solids concentration is 35 mg/L and the alkalinity is 65 mg/L as Cacos. Pilot studies indicate that the sludge from the settling tanks will consist of 1.5% solids and have a wet sludge specific gravity of 1.15. (a) Determine if it is necessary to adjust the alkalinity of...
2. A dose of 41 mg/L of alum is used in coagulating a turbid water at...
2. A dose of 41 mg/L of alum is used in coagulating a turbid water at a water treatment plant treating a flow rate of 32 million gallons per day (mgd). The natural alkalinity of the source water is 10 mg/L (as CaCO3). a. Will the alkalinity be completely consumed in the reaction? If not, then how much alkalinity will be left? If so, then what concentration of caustic soda (NaOH) must be added to avoid a change in the...
A new water treatment facility will be built to supply water to the town of Freemont. The town's ...
A new water treatment facility will be built to supply water to the town of Freemont. The town's population is currently 14,000 and the per capita water use is 100 gal per day. The new facility will be designed to account for increases in both per capita water use and population growth, and projections for water use will be determined for fifty years in the future. The population of the town of Freemont grows at an average rate of 2%...
A new water treatment facility will be built to supply water to the town of Freemont. The town’s ...
A new water treatment facility will be built to supply water to the town of Freemont. The town’s population is currently 14,000 and the per capita water use is 100 gal per day. The new facility will be designed to account for increases in both per capita water use and population growth, and projections for water use will be determined for fifty years in the future. The population of the town of Freemont grows at an average rate of 2%...
1)I need introduction will be different from this introduction but in the same subject and the sa...
1)I need introduction will be different from this introduction
but in the same subject and the same idea (with littel
different)
2)Select the discussion ,results ,conclusion , methods and
references from this search
INTERNATIONAL JOURNAL OF SCIENTIFIC& TECHNOLOGY RESEARCH VOLUME 2, ISSUE 9 SEPTEMBER 2013 ISSN 2277-8616 Dyes Removal From Textile Wastewater Using 1 PREFACE 2 MATERIALS AND METHODS the largest Bangladesh, the textile industry manufacturing industries. in every stage of textile industry 2.1 Sample and Adsorbents Collection various types...
10. Write a one-page summary of the attached paper? INTRODUCTION Many problems can develop in activated...
10. Write a one-page summary of the attached paper? INTRODUCTION Many problems can develop in activated sludge operation that adversely affect effluent quality with origins in the engineering, hydraulic and microbiological components of the process. The real "heart" of the activated sludge system is the development and maintenance of a mixed microbial culture (activated sludge) that treats wastewater and which can be managed. One definition of a wastewater treatment plant operator is a "bug farmer", one who controls the aeration...
8.7 Ferric sulfate is available as a commercial coag- ulant and is popular at removing turbidity and color. The chemical reaction for its addition to water is Results of a jar test to determine the optimal coagu- lant dose are provided below. The initial water sam- ple has a pH 6.5, turbidity of 30 NTU, and alkalinity of 250 mg/L as CaCO Ferric Sulfate dose, mg/L |5 1015 | 20 Turbidity, NTU 25 151 5 1 0.92 (a) What is...
Problem 1. The alkalinity in raw water entering a drinking water plant can decrease during sig- nificant rainfall events. Jar tests showed an optimal alum (MW 594) dosage of 35 mg/1. If the raw water contains an alkalinity concentration of 25 mg/1 as CaCOs and a pH of 7.5, does sufficient alkalinity exist to buffer a decrease in pH?
Example 8: A 10 MGD (million gallons per day) surface water treatment plant proposes to use alum coagulation for turbidity reduction using 45 mg/L alum! dosage. The raw water has an alkalinity of 20 mg/L as CaCo,. Commercial alum has the formula Al(SO2)2.144,0 (MW = 594). Determine the daily alum dosage required in kg/d. Z.6 -> EW - 99
Problem 1. (29 pts) Jar testing for the water treatment system with a design flow of 37,843 m/d indicates a ferric chloride dosage of 50 mg/L is optimal. The raw water suspended solids concentration is 35 mg/L and the alkalinity is 65 mg/L as Cacos. Pilot studies indicate that the sludge from the settling tanks will consist of 1.5% solids and have a wet sludge specific gravity of 1.15. (a) Determine if it is necessary to adjust the alkalinity of...
2. A dose of 41 mg/L of alum is used in coagulating a turbid water at a water treatment plant treating a flow rate of 32 million gallons per day (mgd). The natural alkalinity of the source water is 10 mg/L (as CaCO3). a. Will the alkalinity be completely consumed in the reaction? If not, then how much alkalinity will be left? If so, then what concentration of caustic soda (NaOH) must be added to avoid a change in the...
A new water treatment facility will be built to supply water to the town of Freemont. The town's population is currently 14,000 and the per capita water use is 100 gal per day. The new facility will be designed to account for increases in both per capita water use and population growth, and projections for water use will be determined for fifty years in the future. The population of the town of Freemont grows at an average rate of 2%...
1)I need introduction will be different from this introduction
but in the same subject and the same idea (with littel
different)
2)Select the discussion ,results ,conclusion , methods and
references from this search
INTERNATIONAL JOURNAL OF SCIENTIFIC& TECHNOLOGY RESEARCH VOLUME 2, ISSUE 9 SEPTEMBER 2013 ISSN 2277-8616 Dyes Removal From Textile Wastewater Using 1 PREFACE 2 MATERIALS AND METHODS the largest Bangladesh, the textile industry manufacturing industries. in every stage of textile industry 2.1 Sample and Adsorbents Collection various types...
Most questions answered within 3 hours.
-
Consider the economy of Freeland, whose overall actual price
index and actual output are P and...
asked 56 seconds from now -
Suppose that the production function takes the form Q=L-0.7L^2.
In addition, marginal revenue is $10 and...
asked 5 minutes ago -
If you were in charge of the selection and purchase of a display
system for the...
asked 5 minutes ago -
I just took a final for chemistry 2. There were alot of
questions on cell potential....
asked 10 minutes ago -
In which region of the country did Methodists and
Baptists have the largest following?
a. The...
asked 10 minutes ago -
A man is standing on a ledge when he throws a ball. The speed of
the...
asked 18 minutes ago -
Facebook Marketing benefit: How is this tool useful for
marketing purposes? Identify and explain at least...
asked 30 minutes ago -
What are the five considerations relevant to the
substantive fairness of a dismissal for permanent incapacity?...
asked 30 minutes ago -
Prince Electronics, a manufacturer of consumer electronic
goods, has five distribution centers in different regions of...
asked 32 minutes ago -
1.) For the following general reaction, rate = k[A]2 and k = 1.3
× 10−2 M−1...
asked 36 minutes ago -
In the Enron documentary(Netflix) What ethical issues did you
observe and who was responsible for them?
asked 36 minutes ago -
Many products fail, some of them spectacularly. Why do you
believe the failure rate for new...
asked 35 minutes ago