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Given 500 kg (dry basis) of primary sludge with the following characteristics Primary Digested Solids %...
5, (15 points) Primary sludge contains 5% dry solids that are 70%volatile and 30% fixed. Determine The specific gravity of dry solids a) b) The specific gravity of sludge The volume of thickened s...
5, (15 points) Primary sludge contains 5% dry solids that are 70%volatile and 30% fixed. Determine The specific gravity of dry solids a) b) The specific gravity of sludge The volume of thickened sludge, if 1,000 kg of dry solids are thickened to 6% in a gravity thickener. 1.0 Specific gravity of volatile solids Specific gravity of fixed solids -2.5 Total mass of dry solids 100 kg Total mass of sludge 100 kg Density of water 1,000 kg/m3 Assume:
5,...
A primary wastewater unit produces 9,000 lbs of dry solids. The sludge contains 7.5% dry solids...
A primary wastewater unit produces 9,000 lbs of dry solids. The sludge contains 7.5% dry solids that are 65% volatile. Calculate the specific gravity of the solid matter and wet sludge. Calculate the volume of the wet sludge in gallons. If this residue is thickened to a cake of 27% solids, what is the specific gravity and volume in gallons of the moist cake? Indicate the volume of the moist cake
A complete-mix activated sludge system is used to treat municipal wastewater after primary sedime...
A complete-mix activated sludge system is used to treat municipal wastewater after primary sedimentation at 20 °C with MLVSS concentration of 2000 g/m3. The discharge standard for soluble BOD, concentration in the effluent is 0.5 g/m. The characteristics of the primary influent are: flow Q -2000 m'/d, soluble BOD -200 g/m3, Using these data and the kinetic coefficients in following, determine 1. Theoretical solids retention time (SRT) in unit of days 2. Pk vss in unit of kg VSS/d 3....
2. [20] A small town has been directed to upgrade its primary wastewater treatment plant to...
2. [20] A small town has been directed to upgrade its primary wastewater treatment plant to a secondary plant that can meet an effluent standard of 25.0 mg/L BODs and 30.0 mg/L suspended solids. They have selected a completely mixed activated sludge system. The following data are available from the existing primary plant. Existing plant effluent characteristics Flow = 0.2000 m 3/s soluble BODs-80 mg/L Assume that the BOD5 of the suspended solids may be estimated as equal to 50%...
with full soln pls Given the following characteristics of a soil sample: Volume = 0.5...
with full soln pls Given the following characteristics of a soil sample: Volume = 0.5 cubic ft. Weight = 56.7 lbs The solids have specific gravity of 2.69. After oven drying, the weight of the soil was 48.7 pounds. What is the density, porosity and degree of saturation of the in-situ soil? this should be the ANS.: ϒ = 113.4 lbs/ft3, n = 41.98%, S = 61.1%
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...
Separating a Mixture, Recrystallization, pre-lab assignment could you also explain why you chose that substance for...
Separating a Mixture, Recrystallization, pre-lab
assignment
could you also explain why you chose that substance for the empty
spaces and question marks
EXPERIMENT 4 Pre-Lab Assignment Separating a Mixture, Recrystalliration Name Date 1. Complete the following flowchart which shows how to separate a mixture of sand, sodium chloride and acetanilide. Notice that after a separation process (a down arrow) the filtered solids are shown on the left and the filtrate (the liquid) is shown on the right. The terminal step...
please complete the entire case study pertaining to cirrhosis and nursing, thank you. 3 Cirrhosis John...
please complete the entire case study pertaining to cirrhosis
and nursing, thank you.
3 Cirrhosis John Richards, 45 years old Primary Concept Nutrition Interrelated Concepts (In order of emphasis) I. Fluid and Electrolyte Balance 2. Perfusion 3. Cognition 4. Addiction 5. Clinical Judgment 6. Patient Education 7. Communication 8.Collaboration O 2016 Keith Rischer/www.KeithRN.com UNFOLDING Reasoning Case Study: STUDENT History of Present Problem: John Richards is a 4S year-old male who Cirrhosis presents to the emergency department (ED) with abdominal pain...
1. Which of the following are the sites within the human body where carbon dioxide and...
1. Which of the following are the sites within the human body where carbon dioxide and oxygen are exchanged? A. Alveoli B. Arteries C. Synapses D. Venules 2. Which of the following describes the most important reason for repeating an experimental investigation? A. To verify the validity of the original findings B. To expand upon the original investigation C. To manipulate the independent variable D. To attempt to disprove the hypothesis 3. Lithium has an atomic number of 3 and...
JOHNSON & JOHNSON AND SUBSIDIARIES CONSOLIDATED STATEMENTS OF EARNINGS (Dollars and Shares in Millions Except Per...
JOHNSON & JOHNSON AND SUBSIDIARIES CONSOLIDATED STATEMENTS OF EARNINGS (Dollars and Shares in Millions Except Per Share Amounts) (Note 1)* 2016 71,890 21,789 50.101 20,067 9.143 29 Sales to customers Cost of products sold Gross profit Selling, marketing and administrative expenses Research and development expense In-process research and development Interest income Interest expense, net of portion capitalized (Note 4) Other (income) expense, net Restructuring (Note 22) Eamings before provision for taxes on income Provision for taxes on income (Note 8)...
5, (15 points) Primary sludge contains 5% dry solids that are 70%volatile and 30% fixed. Determine The specific gravity of dry solids a) b) The specific gravity of sludge The volume of thickened sludge, if 1,000 kg of dry solids are thickened to 6% in a gravity thickener. 1.0 Specific gravity of volatile solids Specific gravity of fixed solids -2.5 Total mass of dry solids 100 kg Total mass of sludge 100 kg Density of water 1,000 kg/m3 Assume:
5,...
A complete-mix activated sludge system is used to treat municipal wastewater after primary sedimentation at 20 °C with MLVSS concentration of 2000 g/m3. The discharge standard for soluble BOD, concentration in the effluent is 0.5 g/m. The characteristics of the primary influent are: flow Q -2000 m'/d, soluble BOD -200 g/m3, Using these data and the kinetic coefficients in following, determine 1. Theoretical solids retention time (SRT) in unit of days 2. Pk vss in unit of kg VSS/d 3....
2. [20] A small town has been directed to upgrade its primary wastewater treatment plant to a secondary plant that can meet an effluent standard of 25.0 mg/L BODs and 30.0 mg/L suspended solids. They have selected a completely mixed activated sludge system. The following data are available from the existing primary plant. Existing plant effluent characteristics Flow = 0.2000 m 3/s soluble BODs-80 mg/L Assume that the BOD5 of the suspended solids may be estimated as equal to 50%...
Separating a Mixture, Recrystallization, pre-lab
assignment
could you also explain why you chose that substance for the empty
spaces and question marks
EXPERIMENT 4 Pre-Lab Assignment Separating a Mixture, Recrystalliration Name Date 1. Complete the following flowchart which shows how to separate a mixture of sand, sodium chloride and acetanilide. Notice that after a separation process (a down arrow) the filtered solids are shown on the left and the filtrate (the liquid) is shown on the right. The terminal step...
please complete the entire case study pertaining to cirrhosis
and nursing, thank you.
3 Cirrhosis John Richards, 45 years old Primary Concept Nutrition Interrelated Concepts (In order of emphasis) I. Fluid and Electrolyte Balance 2. Perfusion 3. Cognition 4. Addiction 5. Clinical Judgment 6. Patient Education 7. Communication 8.Collaboration O 2016 Keith Rischer/www.KeithRN.com UNFOLDING Reasoning Case Study: STUDENT History of Present Problem: John Richards is a 4S year-old male who Cirrhosis presents to the emergency department (ED) with abdominal pain...
JOHNSON & JOHNSON AND SUBSIDIARIES CONSOLIDATED STATEMENTS OF EARNINGS (Dollars and Shares in Millions Except Per Share Amounts) (Note 1)* 2016 71,890 21,789 50.101 20,067 9.143 29 Sales to customers Cost of products sold Gross profit Selling, marketing and administrative expenses Research and development expense In-process research and development Interest income Interest expense, net of portion capitalized (Note 4) Other (income) expense, net Restructuring (Note 22) Eamings before provision for taxes on income Provision for taxes on income (Note 8)...
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