3. A hard drive manufacturer uses Nickel to plate its disks and then polishes them, resulting in a concentration of 50 mg/l in their 50,000 gallons per day wastewater stream. Their industrial permit standard for Ni discharge into the sewer system and treatment plant is limited to 0.2 Ibs./day. What percentage of the mass of Nickel must the onsite treatment system remove to be in compliance with the discharge standard? Use the following formula to determine the daily Nickel loading of the manufacturing system:

3. A hard drive manufacturer uses Nickel to plate its disks and then polishes them, resulting in a concentration of 50 mg/l in their 50,000 gallons per day wastewater stream. Their industrial permit standard for Ni discharge into the sewer system and treatment plant is limited to 0.2 Ibs./day. What percentage of the mass of Nickel must the onsite treatment system remove to be in compliance with the discharge standard? Use the following formula to determine the daily Nickel loading of the manufacturing system:

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: Disinfection: Graph the following data for the inactivation of a virus using hypochlorous acid…

A: The data for inactivation of a virus using HOCl is as followsThe graph has to be plot and time…

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: 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 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: Question 2 The soda ash dose necessary to soften this water to 90 mg/L as Caco3 if the soda ash is…

Concept explainers

Integrated Solid Waste Management

Integrated Solid Waste Management (ISWM) is a thorough waste suppression, compost, removal and recycling Program. An effective ISWM system considers how to suppress, manage and recycle solid waste in a manner that is most efficiently to protect human health and the surrounding. ISWM system requires evaluation of public wants and demands and then selecting and merging the most effective waste management activities for the proposed demands. The main ISWM activities for solid waste management are Waste prevention, Recycling and Composting, and Combustion and Removal and waste collection in a properly planned, constructed, managed and mitigated landfill areas. Each of these requires careful designing, financing, accumulation, and delivery of activities.

Question

3. A hard drive manufacturer uses
Nickel to plate its disks and then
polishes them, resulting in a
concentration of 50 mg/l in their
50,000 gallons per day wastewater
stream. Their industrial permit
standard for Ni discharge into the
sewer system and treatment plant is
limited to 0.2 Ibs./day. What
percentage of the mass of Nickel
must the onsite treatment system
remove to be in compliance with the
discharge standard? Use the
following formula to determine the
daily Nickel loading of the
manufacturing system:
Loading (Ibs/day) = Conversion Factor (8.
Flow(MGD)

Expert Solution

This question has been solved!

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

This is a popular solution!

SEE SOLUTION Check out a sample Q&A here

Step 1

VIEW

Step 2

VIEW

Trending now

This is a popular solution!

Step by step

Solved in 2 steps

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

Please solve my homework question
You have been treating a wastewater with bacteria that have the following kinetic coefficients: k= 16 mg BODL/mg VSS-day Ks = 10 mg BODL/1 b =0.2/day Y = 0.35 mg VSS/mg BODL fa=0.8 A genetic engineer comes to you and claims he can "fix" your bacteria so they are more efficient. The fixed bacteria will have b=0.05/day and fa= 0.95, while all other coefficients are the same. Using a chemostat reactor, you were successfully using a safety factor of 30, and you plant to continue doing so. How would the genetic engineers plan affect your sludge production and oxygen requirements? Assume Xº=0, Sº=200 mg BODL/1). In what ways are the new bacteria more efficient?
A wastewater sample subjected to standard BOD5 test yields a test result of 200 mg/L. The rate constant is 0.18/day at 20°C (to the base 'e'). Another sample of the same wastewater is tested at a temperature of 30°C. The time in days after which the BOD yielded is 200 mg/L is (up to 2 decimal places).
2.3 You have been asked to design a circular de-chlorination basin for 2 MGD treated wastewater. If use Na2S2O3 and the depth of the tank is to be 4.5 ft, what would you suggest the diameter of this tank? a) 50 ft c) not enough information 2.4 Alum required for a 1.5 mg/L dose and for a plant treat 10 MGD of drinking water is: a) 68.3 Ib/day b) 42 ft b) 125.11b/day d) no need for tank c) 62.6 Ib/day = d) 72.8 Ib/day
Please upload your full solution to the following problem. A series of experiments was conducted in a batch reactor to assess the disinfection by chlorine of the protozoan Giardia lamblia. In each experimental run, the concentration of free available chlorine was varied and the time required to kill 99 percent of the organisms was determined. The results showed that a Ct value of 100 mg-min/L was sufficient to achieve 2-log removal. Assume that the Chick- Watson model holds with n = 1. A. What value is the psuedo-first order disinfection rate coefficient k (min ¹) when the chlorine concentration is 1 mg/L? B. At a chlorine concentration of 1 mg/L and a contact time of 10 minutes, what fraction of the G. lamblia organisms would be killed? C. At a chlorine concentration of 10 mg/L and a contact time of 5 minutes, estimate the fraction of the G. lamblia organisms that would be killed. 4
Determine leachate generated in a cell in a 12-month period. You may assume that: -Percolation through the cover is 15in -Water consumed by waste decomposition is negligible (Life 1 contains mostly fresh waste) -Water loss as water vapor in landfill gas is negligible (again due to fresh waste) -Initial moisture content in fresh waste = 0.20 -Weight of waste in the lift = 3000 lb/yd² -Weight of cover = 1500 lb/yd² -The following sketch depicts water in and out of a waste lift. Water consumption by waste decomposition PER or leachate from above Water stored in waste Leachate generated Water loss as water vapor in landfill gas
Can you please solve step by step I can't seem to understand it.
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.