SO4 = 216.0 mg/L. (a) Check if the number of equivalents of positive and negative ions are balanced. For a flow of 25,000 m /d and a complete removal of hardness, calculate (b) the lime requirement, (c) the soda ash requirement, and (d) the mass of solids and volume of sludge produced. Assume that the lime used is 90% pure and the soda ash used is 85% pure. Also, assume that the specific gravity of the sludge is 1.04.

TABLE 10.3 Fractional Removals


/r(0.0123MrCaHC03 + 0.05Mrea) + /2(0.0137MragHC0r + ^.O^^j^^j,! (0.0123MrcaHC03 + 0.0^'l'lr^(la) + (0.0137MmgHC03 + 0r082MTMg)

How To Bolster Your Immune System

How To Bolster Your Immune System

All Natural Immune Boosters Proven To Fight Infection, Disease And More. Discover A Natural, Safe Effective Way To Boost Your Immune System Using Ingredients From Your Kitchen Cupboard. The only common sense, no holds barred guide to hit the market today no gimmicks, no pills, just old fashioned common sense remedies to cure colds, influenza, viral infections and more.

Get My Free Audio Book

Post a comment