Water Treatment Chemical Feed Problems

Flashcards based on the American Water College lecture series covering chlorinator settings, dry chemical feeder rates, and hypochlorinator chlorine feed calculations.

Chlorinator setting for $350\,\text{gallons per minute}$ flow and $2.2\,\text{mg/L}$ required chlorine dose

$$9.2\,\text{lb/day}$$

Chlorinator setting for $400\,\text{gallons per minute}$ flow and $2.0\,\text{mg/L}$ required chlorine dose

$$9.6\,\text{lb/day}$$

Chlorinator setting for $250\,\text{gallons per minute}$ flow and $1.8\,\text{mg/L}$ required chlorine dose

$$5.4\,\text{lb/day}$$

Chlorinator setting for $325\,\text{gallons per minute}$ flow and $2.4\,\text{mg/L}$ required chlorine dose

$$9.4\,\text{lb/day}$$

Chlorinator setting for $800\,\text{gallons per minute}$ flow and $2.0\,\text{mg/L}$ required chlorine dose

$$19.2\,\text{lb/day}$$

Chlorinator setting for $675\,\text{gallons per minute}$ flow and $1.5\,\text{mg/L}$ required chlorine dose

$$12.2\,\text{lb/day}$$

Dry chemical feeder rate (bucket weighs half a pound, $3\,\text{pounds}$ total after $30\,\text{minutes}$)

$$120\,\text{lb/day}$$

Dry chemical feeder rate (bucket weighs half a pound, $2.5\,\text{pounds}$ total after $20\,\text{minutes}$)

$$144\,\text{lb/day}$$

Dry chemical feeder rate (bucket weighs half a pound, $1.8\,\text{pounds}$ total after $15\,\text{minutes}$)

$$125\,\text{lb/day}$$

Dry chemical feeder rate (bucket weighs half a pound, $4.2\,\text{pounds}$ total after $25\,\text{minutes}$)

$$213\,\text{lb/day}$$

Dry chemical feeder rate (bucket weighs half a pound, $2.8\,\text{pounds}$ total after $30\,\text{minutes}$)

$$110\,\text{lb/day}$$

Dry chemical feeder rate (bucket weighs half a pound, $4\,\text{pounds}$ total after $30\,\text{minutes}$)

$$168\,\text{lb/day}$$

Hypochlorinator chlorine feed ($1.2\,\%$ solution, $375\,\text{ml}$ every $10\,\text{minutes}$)

$$1.4\,\text{lb/day}$$

Hypochlorinator chlorine feed ($1.4\,\%$ solution, $350\,\text{ml}$ every $5\,\text{minutes}$)

$$3.1\,\text{lb/day}$$

Hypochlorinator chlorine feed ($1.5\,\%$ solution, $425\,\text{ml}$ every $12\,\text{minutes}$)

$$1.7\,\text{lb/day}$$

Hypochlorinator chlorine feed ($1.2\,\%$ solution, $400\,\text{ml}$ every $10\,\text{minutes}$)

$$1.5\,\text{lb/day}$$

Hypochlorinator chlorine feed ($1.5\,\%$ solution, $500\,\text{ml}$ every $11\,\text{minutes}$)

$$2.2\,\text{lb/day}$$

Hypochlorinator chlorine feed ($1.4\,\%$ solution, $650\,\text{ml}$ every $10\,\text{minutes}$)

$$2.9\,\text{lb/day}$$