(a) What is the maximum contaminant concentration that is expected at a location 2 km downstream of the wastewater discharge? (b) How would this maximum concentration be affected if the waste discharge is limited to operating for only 30 minutes per day.

Q: A municipal wastewater flow of 1,000 m³/d contains 400 mg/L BOD5 and is treated to be in a trickling…

A:

Q: oluble BOD5 = 80 mg/L Assume that the BOD5 of the suspended solids may be estimated as equal to 50%…

A: According to given data  A small town has been directed to upgrade its primary wastewater treatment…

Q: After primary treatment, a municipal wastewater contains 150 mg/L BOD5. The wastewater flow of 0.44…

A: Given: Influent BOD, S0=150mg/L Discharge through the aeration tank=0.44cumec HRT=6hr…

Q: A stream containing no biochemical O2 demand (obviously a hypothetical situation) has a DO of 5.00…

A: Given  DO = 5.00mg/l Flow Rate =  8.7m3/s Temperature = 15oC Avg Velocity =  0.174 m/s Avg Depth =…

Q: The 550-bed Atlanta Hospital has a small, activated sludge plant to treat wastewater from the…

A: Given, V = 10 m x 10 m x 5 m N = 550  q = 1.50 m3 per day per bed   To find : Aeration time

Q: Estimate the reduction in bacteria during the passage of wastewater that initially contains 106…

A: Initial Concentration = 106 org per ml V1 = 10000 m3 V2 = 20000 m3 V3 = 6000 m3 K = 0.1 per day Find…

Q: problem 4: A wastewater treatment plant with an average daily flow of 0.25 m³/s must meet 30 mg/L of…

A: Part e) is not in your question but if you want it then only write otherwise leave that.

Q: A factory is discharging its wastewater into a slowly moving stream that has a mean velocity of 3…

A: Dissolved oxygen sag curve

Q: Estimate the reduction in bacteria during the passage of wastewater that initially contains 106…

A:

Q: You have a DAF with wastewater flow of 650 L/min, with a solids concentration of 15 g/L. Density of…

A: Given: Wastewater flow rate, Q = 650L/min Solids concentration = 15g/L Density of the wastewater =…

Q: A secondary treatment using a mixed water activated sludge system, have the flow rate of…

A: simple activated sludge process diagram and their simple formula

Q: A conventional activated-sludge system treats 11,000 m3/day of wastewaterin an aeration tank with a…

A: SRT = 7 DAYSExplanation:Step 1:In the context of wastewater treatment specifically with activated…

Q: The saturation DO concentration of a stream is 9.1 mg/L. At a sewage outfall, the DO of the stream…

A:

Q: A lagoon with a volume of 1500 m3 reieves an industrial wastewater flow of 100 m3/day containing a…

A: Volume = 1500 m3 Waste water flow = 100m3/day Concentation =  mg/l

Q: (a) (b) Sludge thickening can be implemented using several methods. Describe TWO (2) differences…

A: Sludge can be defined as the residue that is left after the treatment of sewage. Sludge can be…

Q: There is sedimentation tank that is used to remove suspended solid particles from an incoming…

A: Given Discharge= 150m3/hr surface area= 15m2

Q: After primary treatment, a municipal wastewater contains 150 mg/L BOD5. The wastewater flow of 0.44…

A: To determine- Aeration volume (m3)

Q: The 550-bed Atlanta Hospital has a small, activated sludge plant to treat wastewater from the…

A: Given, BOD5 after primary settling, So = 450 mg/L MLVSS = 2,600 mg/L   To find : F/M ratio

Sediment transport

Sediment transport or Soil transport is the movement of solid particles, usually due to the combination of gravitational forces acting on the sediment, and the movement of the liquid at which the sediment enters. Soil erosion occurs in natural systems where the particles are sandstones (sand, rocks), mud, or clay; the liquid is air, water, or ice; and the gravitational force that works to move particles to the landing surface. Sediment transportation or soil migration due to the movement of liquids occurs in rivers, lakes, lakes, oceans, and other bodies of water as a result of currents and waves. Transportation is also caused by glaciers as they flow, and to places on earth under the influence of wind. Soil erosion due to gravity alone is possible in most sloping areas, including hills, scarves, cliffs, and the continental shelf — the continental boundary of the slope.