By C. Lee, Shun Dar Lin
Step by step consultant to environmental calculation. the single hands-on reference of its style, guide of Environmental Engineering Calculations, by way of revered nationwide specialist C.C. Lee, presents calculation techniques for reliable waste administration; air assets administration; water caliber evaluate and keep watch over; floor water; lake and reservoirs; groundwater; public water offer; waste water remedy; and possibility assessment/pollution prevention. every one process is gifted with totally illustrated steps. the writer, an EPA examine application supervisor, exhibits the combination of regulatory necessities into environmental layout, in order that the ensuing designs are extra appropriate to regulators.
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Extra info for Handbook of Environmental Engineering Calculations
6 gal Therefore, purchase three 1-gal cans. 681 per 100 cubic foot (cf) for the first 3000 cf 100 cf from 3001 cf to 60,000 cf 100 cf from 60,001 cf to 1,300,000 cf, and 100 cf for 1,240,001 cf and over In addition to the above monthly charge, there is a customer size provided and public fire protection service charge. 40 MGD. If the pump was broken, how many more days could your plant supply the water? 0 days EXAMPLE 2: The intermittent sand filter needs to be drained and cleaned. If the treated wastewater volume in the filter is 18,000 gal, what is the time to empty the filter if the withdrawal rate is 500 gal/min?
25ft 25 TfT = T = 5 Ratl 88ft 3 4ft 3 ft x ft x ft ft x ft ~lln ^>-99^ x _L-3 3 f t / h 3ft 2 ~ W h x 3 f t 2 - 3 3 U / h Division 72ft 2 —— = 24 ft2 ^, J = 1 36rt/s (any quantity divided by its equivalent equals one). 8 mil gal of water during his shift. What is the plant total volume treated per day, assuming the same treatment rate? 4 MGD EXAMPLE 3: 1 MGD equals how many (a) cubic feet per second (cfs)? (b) gallons per minute (gpm)? (c) cubic meters per day (or metric tons per day)? 785 x IQ6 kg x IQ"3 metric ton/kg day = 3785 metric tons per day EXAMPLE 4: A blower has a capacity of 200 cfs.
Solution: 2 PREFIXESFORSIUNITS The prefixes commonly used in the SI system are based on the power 10. For example, a kilogram means 1000 grams, and a centimeter means one-hundredth of 1 meter. 2, together with their abbreviations, meanings, and examples. 000 000 000 000 000 001 = 10~18 d c m At n p f a km, kg meter (m), gram (g) cm mm, mg Jim, ^g MATHEMATICS Most calculations required by the water and waste water plants operators and managers are depended on ordinary addition, subtraction, multiplication, and division.