By Joanne K. Price
With many labored examples, this ebook offers step by step guide for all calculations required for wastewater remedy. Pertinent calculations are very easily summarized in every one bankruptcy. The textual content covers all of the basic math options and talents wanted for day-by-day wastewater therapy plant operations. The workbook for this booklet can be bought individually or jointly within the utilized Math for Wastewater Plant Operators Set (ISBN: 9781566769891).
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Extra resources for Applied Math for Wastewater Plant Operators
08 l4 MGD = 81,400 gpd = 81,400gpd 1440midday * Refer to Chapter 8 in Basic Math Concepts for a review of flow conversions. WAS Pumping Rate Example 2: (WAS Pumping Rate Calculations) P It has been determined that 4700 lbs/day of must be removed from the secondary system. If e W A S SS concentration is 7340 mglL, what must be the W A S pumping rate, in gpm? 0768 MGD = 76,800 gpd Example 3: (WAS Pumping Rate Calculations) 0 The WAS suspended solids concentration is 6980 mgLL. If 5300 lbs/day dry sludge solids are to be wasted, what must be the WAS pumping rate, in gpm?
Then calculate the lbslday hypochlorite needed by dividing the lbslday chlorine by the percent available chlorine. 34) = lbslday Conc. 34 lbslgal) = Chlorine Then calculate the lbslday sodium hypochlorite: I 177 lbslday C1 2 l 5 Avail. Cl 2 =I I ll8Olbslday Hypochlorite Then calculate the gallday sodium hypochlorite: I Chemical Dosage 41 Example 11: (Chemical Dosage) 0 A flow of 800,000 gpd uires a chlorine dose of 9 mglL. If chlorinated lime (34 o available chlorine) is to be used, how many lbslday of chlorinated lime will be required?
7 cfs. 6 ft/sec and the pipe is flowing full, what is the diameter (inches) of the pipeline? ) - - =l 6 inches1 * For a review of square roots, refer to Chapter 13 in Basic Math Concepts. SOLVING FOR OTHER UNKNOWN VARIABLES There are three variables in Q=AV calculations for pipelines: flow rate (Q), diameter (D), and velocity (V). In Examples 11 and 12, the unknown factor is flow rate. In Example 13, the unknown factor is pipeline diameter. ) When the diameter is the unknown variable, first solve for x ?
Applied Math for Wastewater Plant Operators by Joanne K. Price