Biological Nitrogen Removal (BNR) Discuss nitrogen removal using a MLE Biologic Nitrogen Removal (BNR) process and size the anoxic tank. Some of the information that you will be given includes: Flow rate (Q) RAS IMLR Anoxic tank retention time 12 6 1.8 1.6 mgd mgd mgd hours

Biological Nitrogen Removal (BNR) Discuss nitrogen removal using a MLE Biologic Nitrogen Removal (BNR) process and size the anoxic tank. Some of the information that you will be given includes: Flow rate (Q) RAS IMLR Anoxic tank retention time 12 6 1.8 1.6 mgd mgd mgd hours

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: 2. Determine the diameter of a landfill gas header pipe (assuming SDR17) for the following…

A: Solution: Given: Pressure = 40in.WC Temperature = 100o F Flow rate = 5000 ft3/min Design velocity =…

Q: 3. A hard drive manufacturer uses Nickel to plate its disks and then polishes them, resulting in a…

A: Given data, Flow rate = 50,000 gallons /day Nickel concentration = 50 mg/l Industrial permit for…

Q: Gravity thickener analysis and design − a gravity thickener concentrates waste activated sludge…

A: Given Data: The waste activated sludge flow rate is 250,000 gal/day. The suspended solids…

Q: A wastewater flow of 10,000 m³/d containing 400 mg/L BOD5 is to be treated in a rotating biological…

Q: ll Consider the capability of a process that puts pressurized grease in an aerosol can. The design…

Q: A 5-day BOD test if performed on an industrial wastewater sample that contains no bacteria;…

Q: Chlorination, ozonation, and UV radiation are three commonly used disinfection methods for…

A: Brief Concept Introduction: Disinfection: It is the process of killing of micro-organisms that are…

Q: Your organization has been hired to provide a water treatment process or device to remove toxic…

A: Answer To calculate the concentration of CR(VI) in wastewater we can use the dilution and…

Q: 224. is as follows: An average operating data for conventional activated sludge treatment plant (1)…

Q: a) How will you reduce the turbidity value of a waste water sample by a reagent? Elaborate the…

A: Let us analyse the questionin step2.

Q: If a waste stream (with high BOD) is discharged to a clean river (with almost zero BOD) explain the…

A: BOD : biological oxygen demand is demand for oxygen due to presence of unwanted microb DO :…

Q: A metal plating industry produces effluent containing Cu2+, Fe2+, and Ni2+ at concentrations of 25,…

Q: Disinfection, sedimentation, flocculation, coagulation, and filtration are processes for a surface…

A: Coagulation is defined as a water treatment process in which chemicals which are known as coagulants…

Q: CHAPTER 7 WASTE HANDLING AND SEPARATION, STORAGE AND PROCESSING AT THE SOURCE Q4 Estimate the energy…

A: The solid waste is important in evaluating the needs of equipment's, system and the management…

Q: Subject: Environmental Prepare a sketch of a simple wastewater treatment process. Indicate the…

Q: Working for the local wastewater treatment plant, you are asked by the labtechnician to help her set…

A: The given data is shown below:

Q: Wastewater flow in a sewer can be estimated by adding a known amount of tracer such as salt solution…

Q: Based on test data given on picture attached, determine the concentration of total solids, TS in…

A: Given data, Weight of empty dish X 54.222 g Weight of dish+ residue after evaporation at 105° C…

Q: A BOD test is conducted using standard size BOD bottles. The technician prepares two BOD bottles on…

Q: A ground water supply has been contaminated with ethylbenzene and the remedial action has been…

A: GIVEN- Maximum level of ethyl benzene in the water=1mg/l KLa=0.016 s-1QW=7.13…

Q: Q. The wastewater having an organic concentration of 54 mg//is flowing at 3 a steady rate of…

A: Given data- Initial concentration Lo=54 mg/Lsteady rate of flow Q=0.8 m3/dayDetension tank…

Q: An air particulate control (APC) device has the theoretical efficiency/particle size relationship…

A: To calculate the overall removal efficiency of the APC, we need to determine the fraction of…

Q: Complete the following problems dealing with rapid mix tanks and flocculation basins: 1. Design a…

A: Note : Since you have asked multiple question, we will solve the first question for you. If you want…

Q: The following data was obtained to perform a BOD test to determine how well a wastewater treatment…

A: BOD is the amount of oxygen required for the bio degradation of materials present in the waste…

Q: An oil company has drilled a hydraulic fracturing well near your microbrewery in Anytown, U.S.A. It…

A: Assessing the SituationHydraulic fracturing, or fracking, is a process of injecting high-pressure…

Q: design of a municipal water treatment plant The following treatment processes are commonly used in…

A: a) Coagulation addition-flocculation tank- 1) Coagulation and flocculation play a dominant role in…

Q: A PFR is designed to treat incoming waste water containing 7.33 mM of H2S at a flow rate of 100…

A: Given: Concentration of H2S at inlet, =7.33 mM Removal percentage of H2S = 90% Required Percent…

Q: a) Explain the functions of the following in particle removal during water filtration in granular…

A: Water filteration It is process of treatment of water under various phases which includes- Primary…

Q: The air pollution control equipment on a municipal waste incinerator includes a fabric filter…

A: Answer (a) We can use Mass Balance system to calculate the fraction of particulate matter removed…

Q: Draw (and explain) a flow diagram of your municipal wastewater and chromium treatment system.

A: Step: 1 Municipal wastewater: - It is defined as mixture of wastewater from households, industry…

Q: particulate sample in an air stream is represented by the following weight percent distribution:…

Q: A PFR is designed to treat incoming waste water containing 7.33 mM of H2S at a flow rate of 100…

A: Given:- The concentration of H2S inside incoming waste = 7.33 mM The flow rate of incoming waste =…

Q: Estimate the mass of solids removed during each hourly period. Assume 100% removal of particles in…

A: To estimate the mass of solids removed during each hourly period with an assumption of 100% removal…

Q: From the following date, estimate the unit waste disposal rate per week for a residential area…

A: The given data is shown below: Number of homes=1200Average occupancy=4 persons per homeNumber of…

Q: You have been treating a wastewater with bacteria that have the following kinetic coefficients: k=…

A: Data given k= maximum specific growth rate = 16 mg BODL/mg VSS-day Ks= half-saturation constant =10…

Q: Membrane filtration, operated in a dead-end mode, is used to treat secondary effluent. If the HPC in…

A: Given:- The quantity of the HPC in the effluent initially = 5 org/L The quantity of the HPC in the…

Q: What precautions should we follow when conducting experiments in the Environmental lab? How can you…

Q: B: Determine the recycle sludge flowrate to the aeration tank if the wastewater flowrate is 2200…

Q: Among the treatment schemes depicted below, select all that are able to perform enhanched biological…

A: This question is related to the Environment Engineering from Civil Engineering. In this question ask…

Q: Differentiate biological treatment from tertiary treatment of waste water. 2. Identify and…

A: 1. In biological treatment, the bacteria present in sewage and other microorganisms are allowed to…

Concept explainers

Landfills

The landfill is a site used for the disposal of waste materials. The landfill is a solid waste facility that is often known as a dumping ground. The image below shows a landfill site in Hawaii. Landfilling is the most ancient and common method used for the disposal of waste. For the landfill, a deep trench is constructed in an isolated place away from the city. The trench for landfills is designed properly after analyzing the total population and the waste generation per capita. The waste is dumped into the trench and after every layer of waste, a layer of soil is spread on the top of it.

Question

Biological Nitrogen Removal (BNR)
Discuss nitrogen removal using a MLE Biologic Nitrogen Removal (BNR) process and size the anoxic tank.
Some of the information that you will be given includes:
Flow rate (Q)
RAS
IMLR
Anoxic tank retention time
Filtration
12
6
1.8
1.6
mgd
mgd
mgd
hours

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: Given:

VIEW

Step 2: BNR explanation:

VIEW

Step 3: BNR process:

VIEW

Step 4: To find size :

VIEW

Solution

VIEW

Step by step

Solved in 5 steps with 1 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

A centrifuge dewaters digested sludge from ananaerobic digester. Pertinent performance data are; raw sludge feed rate to the anaerobicdigester = 60,000 lb/day on a dry solids basis, digester suspended solids removalefficiency = 55 percent, suspended solids concentration in digested sludge fed to thecentrifuge = 5.0 percent by weight, centrifuge cake solids concentration = 30 percent byweight, centrifuge solids capture = 90 percent. Sketch a process flow schematic of the system showing both the digester andcentrifuge and all flowing fluid streams, clearly identify the appropriate control surface(s)for mass balance analyses, and then determine;(i) dewatered sludge mass flow rate (lb/day)(ii) centrate flow rate (gal/day)(iii) centrate suspended solids concentration (mg/l).
Which if the following units is primarily responsible for lowering the BOD of wastewater in the treatment system? sedimentation basins aeration tanks flotation tanks grit chamber none of the choices
18. The results for sieve analysis is shown in the following table: Sieve No. 10 20 40 60 100 % Passing 69.3 59.1 48.3 38.5 28.4 19.8 4.5 Liquid Limit Plastic Limit Non-Plastic (NP) Non-Plastic (NP)
discuss at least five sources of error in measuring anions in rainwater through ion chromatography (label them as random or systematic errors).
Problem 4. A small community with a population of 25,200 is seeking your services as a consulting environmental engineer. They have tested their drinking water supply for coliform organisms by the fermentation tube method (five 10 ml portions per sample). They have come up with the following tabulated results for their April 2023 samples: No. of Samples 1 1 2 0 3 24 No. of + portions 5 4 3 2 1 0 No. of - portions 0 1 2 3 4 5 a. What is the calculated monthly average MPN? b. Just by looking at the calculated MPN can you comment on the safety of the drinking water of your client? -coliforms/100 ml.
Determine how much extra volume is needed to treat the following wastewater in a CSTR than in a plug flow reactor. • Influent TOC: 273 mg/L • Required Effluent TOC: 57.0 mg/L • Flow: 792,500 gallons/day • First Order Microbiological Rate Coefficient (k’): 5.98/day Answer: 295,000 gallons 2. Discuss in detail at least two ways the k’ value may have been obtained and which technique is probably more accurate?
Q1.Clearly indicate if each of the following is True or False 1) The amount of bypassed water in split treatment of hardness depends on material balance on Mg². 2) Most water treatment plants in Iraq are using polymers as a coagulant. 3) In drinking water, most of alkalinity comes from SO4². 4) Circle or ring system is the most common method used now to design water distribution systems. 5) Fecal Coliforms and E-Coli are generally pathogenic and we need to test them to avoid their diseases. 6) In flocculation process, we need rapid mixing to enhance formation of flocs for better settlement. 7) In filtration, the only mechanism involved is the straining. 8) It is better to travel downhill, avoid rush hours, and avoid left turn when designing a route for packers. 9) Ozone in Stratosphere layer helps prevent UV light from reaching earth and causing skin problems. 10) Transfer station is used to transfer solid waste to final destination in more efficient way.
512 REDOX PROCESSES AND DISINFECTION 2.5 2.0 1.5 1.0 0.5 0.0 1 2 3 4 8. Cl, dose (mg/L) FIGURE 10-Pr17. Breakpoint chlorination curve for a natural water source. However, when exposed to chlorine, only a portion of the potential oxidant demand is actually exerted. Assume (unrealistically) that 10% of the maximum potential demand is exerted instantaneously when the chlorine is first dosed into the solution, before any chlorine reacts with ammonia. Assume also that, when Cl, residual (mg/L)
1. A mixture consisting of 30 mL of waste and 270 mL of seeded dilution water has an initial Do of 8.55 mg/L; after 5 days, it has a final DO of 2.40 mg/L. Another bottle containing just the seeded dilution water has an initial DO of 8.75 mg/L and a final DO of 8.53 mg/L. Find the 5-days BOD of the waste.
A system is designed to treat contaminant X with two PFRs in series. The concentration of contaminant X entering the first PFR is 120 mg/L and the inflow is 420 L/s. The first PFR is 5000 m³ in size, and the contaminant reacts via first order kinetics with a k value of 0.50 (1/hr). The second tank is being built so that the treatment facility can meet the permit level for contaminant X of 9.4 mg/L. What size do they need to make the second tank in m³?
14. Bench scale aeration test was performed on a sample of water evaluated for air stripping to remove VOCs. The target VOC is present in the water sample before aeration at 890 µg/L. The test data is given in the below table. Determine the order of the reaction. Show your work. Elapsed time of aeration (s) 15 30 45 65 90 120 Target VOC Effluent concentration (µg/L) 397 191 104 53 12 3