A water stream flowing in a pipeline is to be disinfected with chlorine. Question 1 (5...
A water stream flowing in a pipeline is to be disinfected with chlorine.
Question 1 (5 points): Experiments conducted in a laboratory in a jar test (batch reactor) have shown that the initial concentration of bacteria was reduced by 99.5% after 10 minutes. Assuming Chick’s law is valid (that is first order kinetics) compute the first order kinetics rate constant (k).
Question 2 (15 points): The pipeline diameter is 0.6 m and the wastewater flow rate is 0.044
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A water stream flowing in a pipeline is to be disinfected with
chlorine.
Question 1 (5...
The number of coliform bacteria is reduced from an initial concentration of 2 million per 100 mL to 400 per 100 mL in a...
The number of coliform bacteria is reduced from an initial concentration of 2 million per 100 mL to 400 per 100 mL in a long narrow chlorination tank under steady wastewater flow with a hydraulic detention time of 30 min and a chlorine concentration of 5.2 mg/L. Assuming, n = 1.3, first-order kinetics and ideal plug flow, calculate the reaction-rate constant. Using this rate constant, find the effluent concentration if the reactor is operated as a completely-mixed reactor. Hint: θ...
Tap water which is commonly used in fish pond, may contain chlorine (Cl2). To allow the...
Tap water which is commonly used in fish pond, may contain chlorine (Cl2). To allow the fish to live healthily, the chlorine can be pre-treated using sodium thiosulfate (Na2S2Os). Removal of chlorine depends on the assumed conversion in 1 m of rectangular fish tank (pond) volume. Water (H2O) is in excess state of having 4 ppm chlorine. Referring to the findings by Cao et al. (2007). the liquid-phase reaction is zero order with respect to water whilst the rests are...
Not a real experiment, just a homework question In order to test the concentration of chlorine ions, Cl - (aq) in a water reservoir, a sample of 300 ml was taken from a water reservoir to the laborato...
Not a real experiment, just a homework question In order to test the concentration of chlorine ions, Cl - (aq) in a water reservoir, a sample of 300 ml was taken from a water reservoir to the laboratory and a number of experiments were performed. In the first stage, the sample was divided into two cups. A 100 mL solution was prepared in the first glass, and in the second glass 200 ml Several experiments were performed. First cup -...
1. In 1970, the total phosphorus (TP) load to Lake Erie was 18.150 tonnes/year (where tonnes...
1. In 1970, the total phosphorus (TP) load to Lake Erie was 18.150 tonnes/year (where tonnes or metric ton = 1,000 kg). The surface area, volume, and outflow from Lake Erie are given as 25.2 x 10 m² 468 x 10 m, and 182 x 10 m yr, respectively. Based on previous evaluations, the total phosphorus is removed from the lake with an apparent settling rate of 16 m/yr. a. Draw a diagram and write the mass balance equation for...
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...
Question 1 (1 point) Saved A random sample of 200 University of Manitoba students is asked...
Question 1 (1 point) Saved A random sample of 200 University of Manitoba students is asked whether their parents have a university degree. What is the population of interest for this survey? Question 1 options: all University of Manitoba students who were included in the sample all parents of University of Manitoba students who have a university degree all University of Manitoba students all parents of University of Manitoba students all University of Manitoba students whose parents have a university...
Show instructions Questions 1-60 of 60 | Page 1 of 1 Question 1 Which statement by...
Show instructions Questions 1-60 of 60 | Page 1 of 1 Question 1 Which statement by a patient receiving high-dose melphalan indicates an understanding of the teaching O a "Blood counts are not routinely monitored during therapy. 9 b "tis important to take the tablet with food. Owill put honey in my tea daily. O d will suck on ice chips while the drug is being administered Question2 Prior to beginning treatment with daunorubicin, the patient should inform the nurse...
Tap water which is commonly used in fish pond, may contain chlorine (Cl2). To allow the fish to live healthily, the chlorine can be pre-treated using sodium thiosulfate (Na2S2Os). Removal of chlorine depends on the assumed conversion in 1 m of rectangular fish tank (pond) volume. Water (H2O) is in excess state of having 4 ppm chlorine. Referring to the findings by Cao et al. (2007). the liquid-phase reaction is zero order with respect to water whilst the rests are...
1. In 1970, the total phosphorus (TP) load to Lake Erie was 18.150 tonnes/year (where tonnes or metric ton = 1,000 kg). The surface area, volume, and outflow from Lake Erie are given as 25.2 x 10 m² 468 x 10 m, and 182 x 10 m yr, respectively. Based on previous evaluations, the total phosphorus is removed from the lake with an apparent settling rate of 16 m/yr. a. Draw a diagram and write the mass balance equation for...
Show instructions Questions 1-60 of 60 | Page 1 of 1 Question 1 Which statement by a patient receiving high-dose melphalan indicates an understanding of the teaching O a "Blood counts are not routinely monitored during therapy. 9 b "tis important to take the tablet with food. Owill put honey in my tea daily. O d will suck on ice chips while the drug is being administered Question2 Prior to beginning treatment with daunorubicin, the patient should inform the nurse...
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