Answered: (i) For a waste water, the BOD, at 20°C…

(i) For a waste water, the BOD, at 20°C is found to be 200 mg/l. What will be BOD, at 30°C for the same? The reaction constant 'K' (to the base e) at 20°C is 0.2 per day.

Structural Analysis

6th Edition

ISBN:9781337630931

Author:KASSIMALI, Aslam.

Publisher:KASSIMALI, Aslam.

Chapter2: Loads On Structures

Section: Chapter Questions

Problem 1P

See similar textbooks

Related questions

Q: ug/L of NaOH should be added in water to change the pH from 7 to 9 at 25°C.

Q: Small droplets of carbon tetrachloride at 68 °F are formed with a spray nozzle. If the average…

A: Given: Temperature of carbon tetrachloride = 68°F Avg. diameter = 230 µm = 230*10-6 m Required:…

Q: Small droplets of carbon tetrachloride at 68 °F are formed with a spray nozzle. If the average…

A: The diameter of the carbon tetrachloride droplet,To determine the pressure difference between the…

Q: 1-6. Įn a biological waste treatment system, solids may enter (b) Solids decay in the reactor at a…

A: Consider the given equation rs=-k1s2XS2+KsWhere,X=VSS concentration in the reactorAlsok1=8 mg DOCmg…

Q: Water with 90 mg/L of a degradable contaminant flows through a reactor. The influent flow rate…

A: Given, Degradable contaminant flow,D0=90 mg/lFlow rate = 100 m3/dReactor Volume V=200 m3kd=1.0 d-1

Q: If the reaction rate coefficient of BOD is 0.3 1/d at 20 oC, what will it be if the temperature is…

Q: Some wastewater has a BOD, of 180 mg/L at 20°C. The reaction rate K at that temperature has heen…

Q: A treatment plant has been designed to achieve 99 percent inactivation of Giardia Lamblia using…

A: 99% disinfection Present temperature = 20oCNew temperature = 0.5oC

Q: A Carnot cycle running on a closed system has 1.5 kg of air. The temperature limits are 300 K and…

A: Given data: m=1.5 kg of air Tc =300 K TH =1000 K

Q: When chlorine (Cl2) gas is added to water during the disinfection of drinking water, it hydrolyzes…

Q: (iii) If HOCI (hypochlorous acid) degrades in water per first-order kinetics with a rate constant of…

Q: A rigid, well-insulated tank contains a two-phase mixture of ammonia with 0.0025 ft³ of saturated…

A: Solution - Explanation- Final Answer Hope you Understand.Thank You.

Q: An aluminum pipe with a length of 60 m at a temperature of 10°C rests freely on the ground. An…

A: Answer:- The length of the ALUMINUM pipe after the change in temperature can be expressed as by the…

Q: What is the pH of the solution containing 10-5 M H2SO4? Assume complete dissociation of H2SO4 in…

A: Given data,Concentration of H2SO4=10-5To find the ph of the solution

Q: A CFSTR receives a flow rate of 100 m³/sec. There is one influent stream coming into the reactor and…

A: Given data: Flow rate received by the CFSTR: Q=100 m3/s The concentration of the chemical in…

Concept explainers

Evaporation

This topic is majorly taught in various undergraduate and postgraduate degree courses of:

Question

(i) For a waste water, the BOD, at 20°C is found to be 200
mg/l. What will be BOD, at 30°C for the same? The
reaction constant 'K' (to the base e) at 20°C is 0.2 per
day.

Expert Solution

This question has been solved!

Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.

SEE SOLUTION Check out a sample Q&A here

Step 1: data Given

Step 2: Calculation

Step 3: Calculation

Solution

Step by step

Solved in 4 steps with 3 images

SEE SOLUTION Check out a sample Q&A here

Knowledge Booster

Learn more about

Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, civil-engineering and related others by exploring similar questions and additional content below.

Similar questions

For a solution with a pH equal to 9.5, express the concentrations of H+ and OH- in units of meq/L and mg/L as CaCO3.
The concentration of NO₂ in the air at STP is observed as 0.45 ppm. At STP, 1 mole of any gas occupies 22.4 L. The molecular weight of NO2 is 46 g/mol. The concentration of NO₂(in µg/m³, rounded off to one decimal place) is.
An ice cube of 0.05 kg at an initial temperature of -15 c, is placed in 0.6 kg of water at 45 c in an insulated container with negligible mass. a) Calculate the final temperature of the system, b) calculate the change of entropy of the system
A piston compresses an ideal gas originally at P1, V₁ in an isothermal polytropic process (n=1) to one quarter its original volume. (a) Draw the CM and write the first law for this process. (b) Find the work, heat transfer, and internal energy change.
) Calculate the concentration of hydroxide ions *Select a concentration between 0.10 and 0.58 d) Calculate the pH of the methylamine solution
The secondary NAAQS for SO2 is 0.5 ppm (for a 3-hour averaging time). Calculate the equivalent concentration in pg/m3 at standard temperature and pressure (STP: T = 25 °C, P-1 atm),
Small droplets of carbon tetrachloride at 68 °F are formed with a spray nozzle. If the average diameter of the droplets is 280 µm what is the difference in pressure between the inside and outside of the droplets? Pa
A vapor compression refrigeration cycle uses steam as the working fluid. Steamflows steadily with a mass ow rate of 0.5 kg/s. Saturated vapor at 2.0 o C (State 1) enters an uninsulated compressor and it is compressed to 0.35 bar (State 2). Heat transfer at the rate of 105 kJ/s occurs from the compressor to its surroundings and the heat transfer exactly balances the entropy generation rate so that s2 = s1. The boundary and surrounding temperature of the compressor is measured to be 26.67 o C. Steam exits as saturated liquid at 0.34 bar (State 3) from the condenser. Steam leaving the condenser is then throttled in an expansion valve (State 4) before entering a constant pressure evaporator to complete the thermodynamic cycle. (a) Calculate the power (kJ/s) for the compressor. (b) Determine the isentropic efficiency (%) of the compressor. (c) Calculate the entropy generation for the compressor. (d) Find the coefficient of performance of the refrigeration cycle. (e) Show the cycle on T-s…
The solubility product for the dissociation of Mg(OH), is 9 x 10-12. Determine the concentration of Mg2- and OH at equilibrium, expressed as milligrams per litres of CaCO3.
26) Given the T-T-T curve below, select the process that will result in a microstructure of nearly all bainite. C. Cool to 400°C, hold for 20 seconds, then quench to room temperature Cool to 500°C, hold for 10 seconds, then quench to room temperature Quench to 125°C, hold for 10 seconds, then reheat to 600°C for more than 100 seconds d. Cool to 725°C, hold for 1,000 seconds, then quench to 125°C Cool to 600°C, hold for 1 second, the quench to room temperature f. none of the above 900 Temperature (°C) 800 A+C 700 A+P 600 500 A+B 400 A 300 200 M(start) M(50%) 100 M(90%) TT 1600 1400 1200 1000 800 600 50% 0 1 10 102 103 104 105 106 Time(s) 400 200 Temperature (°F) 27) Fatigue failure situations are typically dependent upon which combination of the following factors? Slip plane, slip direction, and orientation of the applied load b. Yield strength, elastic modulus, and ductility of the material c. Temperature, time, and applied stress d. Stress amplitude, frequency of loading, and number…
Small droplets of carbon tetrachloride at 68 °F are formed with a spray nozzle. If the average diameter of the droplets is 300 μm what is the difference in pressure between the inside and outside of the droplets? Pa
Determine Kd for the following compounds in a soil with 0.48% organic carbon. Assume that the organic carbon is the primary sorbent. Benzene TCE