2.13. Determine the suspended solids and the percent volatule matter in a solids sample based on the following data: Sample size-25 mL Tare mass of filter 1.5325 g Tare mass ofr alter plus retained solids -1.5415 g Tare mass of filter plus retained ash -1.5378 g

2.13. Determine the suspended solids and the percent volatule matter in a solids sample based on the following data: Sample size-25 mL Tare mass of filter 1.5325 g Tare mass ofr alter plus retained solids -1.5415 g Tare mass of filter plus retained ash -1.5378 g

Structural Analysis

6th Edition

ISBN:9781337630931

Author:KASSIMALI, Aslam.

Publisher:KASSIMALI, Aslam.

Chapter2: Loads On Structures

Section: Chapter Questions

Problem 1P

See similar textbooks

Similar questions

Determine the total dissolved solids concentration using following data: i) Volume of filterable sample = 50 mL ii) Tare weight of the evaporating dish, W_{1} = 30.3419 iii) Weight of evaporating dish with dry solids, W_{2} = 30.3675g
Q5/ In a test to determine the bulk modulus of a liquid it was found that as the absolute pres- sure was changed from 15 to 3000 psi the volume decreased from 10.240 to 10.138 in.³ Determine the bulk modulus for this liquid.
Determine the 5-day BOD (in mg/L) for a 15 ml sample that is diluted with dilution water to a total volume of 300 ml when the initial DO concentration is 8 mg/l and after 5 days, has been reduced to 2 mg/l
(c) An analysis of a water sample has produced the following concentrations, as shown in Table 1(c). Determine the following and comment on the result: (i) Total Hardness in mg/L as CaCO3 (ii) Carbonate Hardness in mg/L as CACO3 (iii) Alkalinity in mg/L as CACO3
A continuous stirred tank reactor (CSTR) Activated Sludge Process is used to treat municipal wastewater after primary sedimentation. The following data is available: Primary Effluent Flow Rate (Q) Primary Effluent BOD Concentration (So) Secondary Effluent Biomass Concentration (Xe) Mixed Liquor Biomass Concentration (X) Solids Retention Time (SRT) Waste Sludge Flow Rate (Qw) Value 450 200 O 0 3,000 5 8 Biomass Concentration in RAS (XR) 8,000 O 250 million gallons, 0.28 gBOD/gVSS.d, 13.3 hours 107 million gallons, 0.28 gBOD/gVSS.d, 5.7 hours O 107 million gallons, 0.42 gBOD/gVSS.d, 5.7 hours 107 million gallons, 0.28 gBOD/gVSS.d, 12.2 hour Unit mgd mg/l mg/1 mg/l days mgd The bioreactor volume (V), F/M ratio, and HRT are respectively: mg/l
A primary clarifier is to be designed to treat a municipal wastewater. The influent to the clarifier has a flow rate of 7570 m³/d and a total suspended solids concentration of 320 mg/L. A laboratory settling test was performed with the following results: Suspended Solids Concentration (mg/L) at Given Depths Sampling Depth (m) Time (min) 0.61 1.22 246 2.44 272 243 1.83 3.05 10 230 262 282 20 157 195 230 253 30 115 160 211 221 230 45 90 134 163 179 195 60 48 102 131 154 170 90 29 58 86 115 141 (a) Determine the design overflow rate and detention time assuming 65% of the suspended solids are to be removed. Use typical scaling/safety factors as appropriate. (b) Determine the required diameter (to the nearest 0.1 m) and the required depth (to the nearest 0.01 m) for the clarifier.
Determine the suspended solids and the percent volatile matter in a solids sample based on the following data: Sample size 25 mL Tare mass of filter = 1.5325 g Tare mass of filter plus retained solids = 1.5415 g Tare mass of filter plus retained ash = 1.5378 g
PART A Bacteria can be divided according to the dissolved oxygen utilization pattern. Differentiate and explain the three main categories of bacteria involved. 1. A BOD analysis was conducted on a raw sewage sample. 300 mL of sample was placed in a 300 mL BOD bottle, and incubated for 5 days at 20°C. Based on your knowledge on the sample characteristic and BOD procedure, explain about the validity and the outcome of the analysis. 2. 3. Explain why oxygen depletion occurs when organic waste is disposed directly in the lake. And mention ONE adverse impact of oxygen depletion.
-1 (a) (b) The results shown in Table QA1 were obtained by a group of students during a laboratory experiment using a standard Proctor test on granular material. Table QA1 Bulk density Water content (Mg/m³) (%) 2 5 6 8 9 1.91 2.24 2.31 1.99 1.4 Using the data in Table QA1, plot the corresponding compaction curve and determine the air content corresponding to the optimum water content and maximum dry density for this soil. Is the air content within the range normally specified when at optimum values? (Note you may Assume: Gs = 2.7 and pw = 1 Mg/m³) Explain why and when it is essential to determine soil density on construction sites.
Enter T next to the following true statements and F next to the false statements. Settling of suspended solids in secondary clarifiers is typical of Type II sedimentation. Thickening prior to digestion is common in many wastewater treatment plants because it reduces the size needed for the digester. Based on a temperature of 30°C, a design mean cell residenee time of about 20 days would be reasonable for a completely-mixed anaerobic digester without recycle. A volatile suspended solid is defined as an organic solid that can be oxidized to CO2 (g) at 250°C. The theoretical yield coefficient can be estimated from the observed yield coefficient if the specific growth rate constant is known. Air flotation would likely be more efficient for thickening waste activated sludge than primary sludge, while the opposite would be true for gravity thickening. The net mass of cells produced in the activated sludge process equals the total cell mass synthesized minus the cell mass wasted as waste…
6. Please answer the following questions: (a) Why control of pH is considered important and what are the main sources of acidity and alkalinity in natural waters? (b) A 100-ml sample require 20.2 ml of 0.02N H₂SO4 to reach the phenolphthalein end point, and a total of 25.6 ml to reach the Methyl orange end point. Calculate total alkalinity and indicate what fraction corresponds to hydroxides, carbonates and bicarbonates (c) The uptake for a water supply system is located at a location named X3 (see Figure); upstream X3, there are two villages that discharge raw sewage at X1 and X2, and new wastewater treatment systems are needed in both villages in order to reduce the concentration of BOD. Calculate the current concentration of BOD at X3, and the required removal efficiency (% BOD removal) in the new wastewater treatment works (WWTW) to control BOD discharges at X1 and X2, so the BOD at X3 ≤ 10mg/L. QR LR X₁ L₁ X₂ Mg(HCO3)2 = 73; CaCl₂ = 111; L₂ LR= 5 mg/L ; QR= 1000, L/s Q1 = 200 L/s;…
Please make presentation about this question How to determine chlorides in a water sample.? Presentation should include the following: Theory Significance Guidelines Apparatus / Chemicals Used Procedure