In the lead content analysis of a wastewater sample, 50.00 mL of the original sample was taken and diluted with 150.00 mL deionized water. The diluted sample was found to have a lead content of 17.8 ppb. What is the lead content (in ppb) of the original wastewater sample? DENSITY VALUES AT 25°C Ethanol: 0.789 g/mL Acetic Acid: 1.05 g/mL Water: 0.997 g/mL

Q: Question - In a sludge digestion tank, if the moisture content of sludge is reduced from 90% to 80%…

A: Given data- Initial moisture content p1=90%Final moisture content p2=80%To Find-The  percentage…

Q: 8. The BODS of a waste sample was found to be 160 mg/L. The initial oxygen concentration of the…

A:

Q: Determine the exact and approximate alkalinity of a water sample that contains 120.0 mg/L of…

A:

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A: Given data- MLSS concentration = 4000 mg/L, 1 litre of sample settled in 30 minutes. Sludge volume =…

Q: A solids analysis is conducted on a domestic wastewater. The followin; the 'dry sample' is obtained…

A: The different types of solids or impurities in the water are  Suspended solids The solids whose…

Q: Q.6: 100 ml waste water sample was diluted with 800 ml of water. Initial dissolved oxygen level (DO)…

A: Volume of waste water sample (Vsample) = 100mlVolume of diluted water (Vdilution) = 800ml Initial…

Q: Q4-B/ (6.0 Marks) In titration for alkalinity (5.0 ml) of 0.02N Sulfuric acid is used to reach the…

A: The alkalinity of water can be attributed to the presence of hydroxide ions (OH⁻), carbonate ions…

Q: 5. A water sample has been analyzed. Upon titration with EDTA, the following results were gathered.…

A: Given, Volume of water sample = 10 ml Volume of CaCO3 = 5 ml

Q: If the BOD, of a waste water sample is 75 mg/ L and reaction rate constant K(base e) is 0.345 per…

A:

Q: The concentration of dissolved oxygen in a sample of waste water decreases from 9 x 10^3 g/L to 6.2…

A: Given data, Initial Concentration of DO = 9×103 g/l Final Concentration of DO = 6.2×103 g/l  Number…

Q: For the measurement of the BOD of a wastewater sample from textile industry, five different…

A: Given- Assume  K=-0.234day-1 t=5

Q: A laboratory provides the following analysis obtained for a wastewater sam Total Solids = 200 mg/L…

A: GIVEN DATA:- TOTAL SOLIDS OF SAMPLE=200 MG/L TOTAL  SUSPENDED SOLIDS OF SAMPLE=160 MG/L FIXED…

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A:

Q: The following data pertain to a sewage sample: Initial DO = 10 mg/L Final DO = 2 mg/L Dilution to 1%

A: Given- DOi=10 mg/L,DOf=2 mg/L,DF=1%. It is needed to find the BOD of the given sample.

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.