A water treatment plant is designed to treat 0.25 m3/s of turbid water. Rectangular horizontal flow settling units and rapid sand filtration units are designed for the following parameters. Sedimentation Tank : (1) Detention time = 4 hrs. %3D (2) Over flow rate = 20 m/m2/d %3D (3) Length : Breadth = 4: 1 %3D Filters : (1) Number of filters = 4 %3D (2) Rate of filtration 5 m2/m/hr %3D (3) Backwash rate = 10 lUm²/s (4) Length : Breadth = 2: 1 (a) Determine the dimensions of the settling tank (b) Determine the length and breadth of the filter unit (c) Flow rate in the washwater trough, if twO troughs are provided in each filter (d) Assuming ideal conditions of settling, determine the percentage fraction of solids with settling velocity 0.1 mm/s, removed in settling tanks.

Q: 14. Use the open auger hole procedure to determine a numerical value of permeability for a…

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

Q: A conventional rectangular clarifier is to be used to remove lime precipitates following softening…

A: A clarifier is a tank used in waste water treatment plant to remove solid particles from liquid…

Q: A rapid sand filter is provided in a water treatment plant for a population of 2 lakh. There are 6…

A: A rapid sand filter in a water treatment plant serves a population of 200,000.Number of filters:…

Q: A rapid sand filter is washed once every 24 hours. Determine the time of washing X if the quantity…

A:

Q: A detention pond is designed to achieve 100% removal of 0.1 mm fine sand particles at the design…

A: Since a detention pond is designed to achieve 100% removal of 0.1 mm fine sand particles at the…

Q: What is the rapid sand filter surface area required for filtering of 10 MLD water assuming a…

A: water to be filtered Q=10 MLD Filtration rate FR = 100,000 l/m2/day   Surface area=?

Q: DISCUSS AND ELABORATE WHAT IS THE BEST METHOD ESTIMATING EVAPORATION?

A: Solution: Evaporation is the process by which liquid water evaporates into the atmosphere,…

Q: Q 13) Primary clarifier (Primary sedimentation tank) which has a diameter of 40 ft. and a height of…

A: Diameter of primary sedimentation tank (d) = 40 ft Height of sedimentation tank (h) = 8 ftVolume…

Q: 9. How high will water rise due to capillary action for the soil with a dashed line and for the soil…

A: Given, Particles size distribution  curve    To find : Height of water rise due to capillary action

Q: A town has an existing horizontal flow sedimentation tank with an overflow rate of 17 m³/day/m², and…

A: Given data- Overflow rate- OFR=17 m3/day/m2, Settling velocity- Vs=0.1 mm/s, Ideal sedimentation…

Q: Max average daily flow = 16 MGD Minimum depths 10’ for primary clarifier and 15’ for secondary…

A: Given that , Maximum average daily flow = 16 MGD= 16×10⁶ gallon / day, Minimum depths 10' for…

Q: Complete the following problems dealing with gravity sedimentation: 1a. Design a drinking water…

A:

Q: Design a sedimentation tank to be treat 0.10 m³/sec

A: The design of a sedimentation tank involves determining the dimensions and other parameters to…

Field applications of hydraulic conductivity

Hydraulic conductivity is one of the hydraulic properties of soil defined as a measurement of the ability of a porous medium to permit water movement or fluid flow through it. It is denoted by the letter K. It is influenced by the density and viscosity of the fluid. It is also called permeability. Hydraulic conductivity is defined as the ratio of velocity to the hydraulic gradient. The different methods used to determine the hydraulic conductivity are laboratory methods (constant head permeability tests and falling head tests), in-situ field methods (pumping in and pumping out tests), small scale field tests (infiltration tests and slug tests), and indirect methods such as estimation from grain size, consolidation test data, and horizontal capillary test. The pedotransfer function (PTF) method is a specific empirical estimating approach employed in the soil sciences is also used to determine the hydraulic conductivity of the soil.