The result of this calculation can be compared with design. Weir overflow rate (or weir loading rate) is the amount of water leaving the settling tank per linear foot of water. Kindly contact and find out how we can be of help to you. A weir is a device used to measure wastewater flow. Thank you for visiting Structville today and God bless you. Functional Calculation in each Process Treatments 1. Target effluent characteristics BOD< 30 mg/l COD< 100 mg/l SS < 30 mg/l Coliform < 200000 CFU/100ml 3. I hope you found this piece of information helpful. Influent wastewater characteristics BOD: 200 mg/l COD: 400 mg/l SS : 200 mg/l Coliform : 10000000 CFU/100ml B. For instance, marine plywood can be used 8 times before it gets damaged, and wooden H-beams (joists) are very durable for a long period of time provided they are well handled and protected from long exposure to moisture. Note that all these materials can be hired because they are very reusable. Therefore, the total number of acrow props required = 238 – 30 = 208 pieces Number of props that would have been in lift area = 5 x 6 = 30 pieces Width of lift and staircase area = 3.60m (5 props) Length of lift area and staircase area = 5.055m (6 props) Number of props required in the lift and staircase area Number required on the shorter side = 12.53/1 + 1 = 14 pcsĪcrow props required = 17 x 14 = 238 pieces Number required on the longer side = 16.12/1 + 1 = 17 pcs Steel acrow props will be used for the shoring Therefore number of lines required = 16.12/1.0 + 1 = 17 lines Basic Design Condition (1) Inflow Waste water Quantity Inflow rate based on Revised Master Plan are as follows. We can therefore say, provide 3 No of 3.9m H-beam and 1 No of 2.9m H-beam per line (2) Capacity Calculation Pejagalan Wastewater Treatment Plant Design Concept 1. Number of H-beam required per line = 12.53/3.9 = 3.21 This will run parallel to the shorter side of the building We will also be using wooden H-beams for stringers. Therefore number of 2″ x 3″ wood required for floor joists = 4.47 x 33 = 148 pieces Supply length of 2″ x 3″ wood in Nigeria = 3.6m If it were to be that 2″ x 3″ wood will be used