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An industrial unit releases 70 000 gpm water having 500 mg/L solids to a creek. The...
Chloroform (CHCI3) has a Drinking Water standard concentration of 0.10 mg/L What is this concentration expressed as par...
Chloroform (CHCI3) has a Drinking Water standard concentration of 0.10 mg/L What is this concentration expressed as parts per million (ppm)? Typical consumption Risk Analysis L/day for 70 years. How many grams of CHCI3 would the average human 1. a. b. assumes the average human drinks 2.2 during a lifetime at the Drinking Water standard concentration? consume Find the Volume of 1 mole of an ideal gas at 1.2 atm and 80°C 2. The Air Quality Standard for sulfur dioxide...
1. An effluent water contains significant quantities of non-emulsified oil with a concentration of 176 mg/l....
1. An effluent water contains significant quantities of non-emulsified oil with a concentration of 176 mg/l. In order to maintain the concentration of the oil below 25 mg/l, alum with a dosage of 35mg/l was used. Based on the preliminary experiments it was found that every gram of alum produces 0.65 g of sludge. The weight percentage of sludge in the effluent is 2.75. The flow rate of oily effluent water to the treatment unit is 0.75 m3/min at 30°C....
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...
The system below uses a centrifugal pump to circulate water at 19°C, having a vapor pressure...
The system below uses a centrifugal pump to circulate water at 19°C, having a vapor pressure of 2320 Pa, from a low reservoir to a higher one through a cast iron pipe with a diameter of 35 cm and surface roughness of 0.25 mm. The minor head losses upstream of the pump are represented by EK1 = 0,6 and downstream by & K2 = 7. After several months of usage, it is noticed that the installation is noisy and consumes...
Food and beverage containers are commonly made of tin, steel, aluminum, or a combination of metals....
Food and beverage containers are commonly made of tin, steel, aluminum, or a combination of metals. Suppose that a laboratory procedure requires a can be made of aluminum. Which property can be used to determine if a can is likely to be made of aluminum? O color Odensity volume mass What is the density of a pear that occupies 32 cm and has a mass of 42 g O 0.7619 g-cm 0 2.0 g.cm O 1.3125 g-cm O 0.76 g.cm...
Lab 8: Exercises EXERCISE 8.1 GM is a 20 y/o male who was admitted to the...
Lab 8: Exercises EXERCISE 8.1 GM is a 20 y/o male who was admitted to the ICU for severe closed head injury and multiple fractures resulting from a fighting engagement at the bar on his birthday. According to his friends, his Ht is 178 cm. His measured Wt at admission is 76 kg. His lab values were normal except for low Hgb and Hct due to bleeding (which was well controlled). He was unconscious, thus was tube fed for one...
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...
Chloroform (CHCI3) has a Drinking Water standard concentration of 0.10 mg/L What is this concentration expressed as parts per million (ppm)? Typical consumption Risk Analysis L/day for 70 years. How many grams of CHCI3 would the average human 1. a. b. assumes the average human drinks 2.2 during a lifetime at the Drinking Water standard concentration? consume Find the Volume of 1 mole of an ideal gas at 1.2 atm and 80°C 2. The Air Quality Standard for sulfur dioxide...
1. An effluent water contains significant quantities of non-emulsified oil with a concentration of 176 mg/l. In order to maintain the concentration of the oil below 25 mg/l, alum with a dosage of 35mg/l was used. Based on the preliminary experiments it was found that every gram of alum produces 0.65 g of sludge. The weight percentage of sludge in the effluent is 2.75. The flow rate of oily effluent water to the treatment unit is 0.75 m3/min at 30°C....
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...
The system below uses a centrifugal pump to circulate water at 19°C, having a vapor pressure of 2320 Pa, from a low reservoir to a higher one through a cast iron pipe with a diameter of 35 cm and surface roughness of 0.25 mm. The minor head losses upstream of the pump are represented by EK1 = 0,6 and downstream by & K2 = 7. After several months of usage, it is noticed that the installation is noisy and consumes...
Food and beverage containers are commonly made of tin, steel, aluminum, or a combination of metals. Suppose that a laboratory procedure requires a can be made of aluminum. Which property can be used to determine if a can is likely to be made of aluminum? O color Odensity volume mass What is the density of a pear that occupies 32 cm and has a mass of 42 g O 0.7619 g-cm 0 2.0 g.cm O 1.3125 g-cm O 0.76 g.cm...
Lab 8: Exercises EXERCISE 8.1 GM is a 20 y/o male who was admitted to the ICU for severe closed head injury and multiple fractures resulting from a fighting engagement at the bar on his birthday. According to his friends, his Ht is 178 cm. His measured Wt at admission is 76 kg. His lab values were normal except for low Hgb and Hct due to bleeding (which was well controlled). He was unconscious, thus was tube fed for one...
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