ENV3001Lspring24Prelab_Week09_WaterAlkalinity

Sanitary engineering laboratory The residual chlorine (Free chlorine) test  write about everything The residual chlorine

limitation of reverse osmosis water treatment technology

Environmental Engineering Lab what is the Standard test method to determine biochemical oxygen demand of a given water sample Please add your answer this : Theory Significance Guidelines Apparatus / ChemicalsUsed Procedure

Q: What precautions should we follow when conducting experiments in the Environmental lab? How can you determine chloride content in a wastewater sample? subject: Environmental Engineering-ll (lab) program: BE-Civil Engineering

4. Problem 5-16 (modified), Davis and Cornwell, Introduction to Environmental Engineering, 5th Ed.: Determine the concentration (mol/L) of hydroxide that must be added to an aqueous solution to produce a concentration of 0.50 mg/L copper if the starting concentration is 3.5 mg/L copper. The solubility product for copper hydroxide (Cu(OH)2) is 2.2 x 10-20 mol/L. What is the resulting solution pH?

For each of the following indicate if the designated technology is appropriate for the indicated water-quality problem. Explain why or why not (answer in no more than a few sentences). c. A strong-base ion exchange resin for nitrate. d. Slow sand filtration for highly turbid water.

Consider that water aeration does not result in calcium carbonate precipitation, which of the compounds listed would not be removed by aeration: hydrogen sulfide, carbon dioxide, odorous and volatile bacterial metabolites, alkalinity and iron?

EXPERIMENT TITLE: YIELD AND EFFICIENCY DETERMINATION FOR MEMBRANE SEPARATION PROCESS OBJECTIVES: To demonstrate the reserve osmosis via membrane separation technology. To evaluate the efficiency of membrane separation process based on reverse osmosis system.   RESULT AND DISCUSSION: Based the result, at time 1 minute, the highest value of conductivity (mS/cm) was at pressure difference 15 bars (14.09mS/cm) and the lowest value of conductivity was at pressure difference 10 bars (10.01mS/cm). After 15 minutes, the highest value of conductivity was at pressure difference 20 bars (15.15mS/cm) and the lowest value of conductivity still at pressure difference 10 bars (14.36mS/cm). The value of the conductivity supposed to increase when the pressure difference increase, which mean at pressure difference 10 bars will have the lowest conductivity value, following by the 15 bars, 20 bars and 25 bars as the highest value of conductivity. This fluctuating value of conductivity was occurred…

The following test results (Table Ql-2) were obtained from a raw water sample. All of the tests were performed using a sample volume of 50 mL. Table Q1-2 Weight (g) Mass of residue after drying at 105 ỏC Mass of residue after ignition at 550 ¿C Mass of residue on Whatman GF/C filter paper after drying at 0.7148 0.3818 0.3571 105 'C Mass of residue on Whatman GF/C filter paper after ignition at 550 'C 0.1418 Calculate the concentration (mg/L) of : (i) total solids. (ii) total volatile solids. (iii) total suspended solids. (iv) total dissolved solids.

MASS CUMULATIVE CUMULATIVE SIEVE # SIEVE (mm) RETAINED MASS % RETAINED (gm) RETAINED(gm) #4 4.75mm 30 #8 2.36mm #16 1.18mm 109 #30 600μm 300μm 150μm 101 #50 59 #100 117 PAN 25 TOTAL MASS OF 500 SAMPLE FM ****FILL UP THE SHADED CELLS. SHOW SAMPLE CALCULATION.

Q 02:  Dissolved oxygen (D0) is influenced by which factors? Explain. How can you determine chloride content in a waste water sample?   Note: Write the answer in each part in word format Subject:    Environmental Engineering 2 Lab

Il Consider the capability of a process that puts pressurized grease in an aerosol can. The design specification calls for an average of 50 pounds per square inch (psi) of pressure in each can with an upper tolerance limit of 56psi and a lower tolerance limit of 46psi. A sample is taken from production, and it is found that the cans average 51psi with a standard deviation of 2psi. Find the following unknowns. 1. Capability Index (Cpk) 2. Is the process capable at the 30 level? 3. What is the probability of producing a defect? Hind: use the standard normal table as seen below.

What precautions should we follow when conducting experiment in Environmental lab? How can you determine chloride content in a waste water sample? Civil Engineering Subject= Enviromental Engineering 2 Lab

(a) (ii) Following chemical species were reported for water sample from a well. Concentration (milli equivalent)/L 15 15 05 30 12 18 8.8 Species Chloride (CL) Sulphate (SO2-) Carbonate (CO2) Bicarbonte (HCO3) Calcium (Ca²+) Magnesium (Mg2+) pH Find (i) The total hardness (in mg/L) as CaCO3 (ii) Alkalinity present in the water (in mg/L) as CaCO3.

Define desalination and provide illustrations Laboratory of sanitary engineering The free chlorine (residual chlorine) test Everything should be written about Chlorine residue

Q 01: a)      What precautions should we follow when conducting experiment in Environmental lab? b) How can you determine chloride content in a waste water sample? Subject: environmental engineering ii lab

a)      How can you determine chloride content in a waste water sample? Subject: environmental engineering lab

Full solution only.

2. At what point in a treatment system is ion exchange normally used?

Q 01 How can you determine chloride content in a waste water sample?   Subject: Environmental Engineering lab Note: Please write the proper answer in word format

Q.2(a) What will be the influence of using more alkaline/acidic water in boilers? Discuss the type of corrosion resulting from it and their method of prevention. (b) Calculate the hardness in a given hard water sample having the following data. 50 ml of standard hard water containing 1 mg of CaCO3 per ml consumed. 50 ml of standard hard water consumed 25 ml EDTA using eriochrome black T as indicator. 50 ml water sample consumed 40 ml EDTA using the same indicator. 50 ml water sample after boiling consumed 25 ml of EDTA using the same indicator. (c) Discuss the problems of boilers which can be arises due to use of high concentration of alkaline substance along with their prevention and disadvantages.

Please upload your full solution to the following problem. Determine the dosage and daily consumption of powdered activated carbon (PAC) required for trichloroethylene (TCE) removal given the following design specifications: 6 SUL Influent concentration = 1 mg/L TCE Carbon type: Calgon Filtrasorb 400 (12 x 40 mesh); pb = 450 g/L Freundlich parameters for TCE • Freundlich capacity parameter K = 55.9 (mg/g)(L/mg)¹/n • Freundlich intensity parameter 1/n = 0.48 Treatment objective = 0.005 mg/L TCE Flow rate = 378.5 L/min (100 gal/min) Assume that no other solutes compete with TCE for adsorption onto the PAC, and that the PAC is saturated at the treatment objective.

Whats the advantages of revers osmosis water treatment techonolgy?

(b)  Identify, from the list, below the primary purpose of each of the following            wastewater treatment processes: i) Grit chamber ii) Addition of ferric chloride (after activated sludge treatment)                   iii) Trickling filters iv) Equalization basins   removal of suspended BOD removal of soluble BOD removal of discrete particles such as coffee grinds and sand removal of nitrate removal of phosphate removal of small particles not removed during secondary clarification removal of small particles not removed during primary clarification damping of flow and BOD loading

Wastewater Engineering civil engineering (67)

Which of the following is not a piece of EPA legislation designed to protect the environment? Clean Water Act Clean Air Act O Civil Rights Act ORCRA D Question 2 What water contaminant was responsible for the 2014 Flint, Michigan water crisis? O Mercury Lead O PCB Giardia Question 3 What condition must be satisfied for us to use the Continuously Stirred Tank Reactor (CSTR) approach? Uniform well-mixed conditions Mixing occurs only in the axial direction The substance is conservative There is only one inflow channel D Question 4 A plug flow reactor is O Less efficient at removing pollutants than a CSTR Has the same efficiency at removing pollutants as the CSTR More efficient at removing pollutants than a CSTR Can be more or less efficient than the CSTR depending on the pollutant

Subject: EnvironmentalPrepare a sketch of a simple wastewater treatment process. Indicate the impurities removed in every stage.

Subject : Environmental science n=5, m=5