A BOD analysis was conducted on a partially- treated sewage at 25°C. Only 20% of the volume of BOD test incubator was filled with the sewage, and the dissolved oxygen values listed below were measured. Time Dissolved oxygen (mg/L) time 0 1 2 3 4 5 6 Dissolved oxyen (mg/L) 8.5 7.7 6.5 4.8 3.5 ? ? By considering minimum dissolved oxygen at day 6 is valid for BOD test, determine the following: (i) Reaction rate K25. (ii) 25BOD5 from the drawn graph. (iii) 30BOD3. (iv) COD of the sample.

Q: For a wastewater sample, the three-day biochemical oxygen demand at incubation temperature of 20°C…

A: Given data- BOD at 3 days at 20o=200 mg/Lk=0.22 day-1To Find-BOD at 5 days at 20o

Q: in a BOD test, 1.0 ml of raw sewage was diluted to 100 ml and the dissolved oxygen concentration of…

A:

Q: Solids analyses were conducted on the domestic wastewater that was tested for BOD. The tests were…

A: Total solid Total solids in water are made up of dissolved solids as well as suspended and…

Q: A BOD test is conducted using standard size BOD bottles. The technician prepares  two BOD bottles on…

A:

Q: A laboratory provides the following analysis obtained from a 500-mL sample of wastewater. 105 °C 550…

A: The given data is shown below:

Advanced Framing Techniques

In construction engineering, framing means joining together pieces of members to build a whole structure. Framing is the step where the construction project starts taking its shape. Wood, engineered wood, and structural steel are some of the framing materials used in construction. The framing technique is divided into two types, lightweight framing, and heavyweight framing. In the heavyweight framing, the vertical supports are few, and the size and weight of the pieces to be used are more like timber framing, pole building framing, and steel framing. Lightweight framing has several smaller size vertical pieces like a balloon, platform, and light-steel framing.