A bankrupt chemical firm has been taken over by new management. On the property they found a 20,000 m3 brine pond containing 25,000 mg/L of salt. The new owners propose to flush the pond into their discharge pipe leading to the Atlantic ocean, which has a salt concentration above 30,000 mg/L. What flow rate of freshwater (in m3/s) must they use to reduce the salt concentration in the pond to 500 mg/L within one year? Round off to four decimals.
Answers
20,000 m3 brine pond
25,000 mg/L of salt.
30,000 mg/L
freshwater (in m3/s)
500 mg/L within one year
The basic constraint in the above matrix is the cost of exercise of recruitment/promotion. This has to be done in the most economical manner and approval of the appropriate level/authority has to be taken.
A bankrupt chemical firm has been taken over by new management. On the property they found a 20,000 m3 brine pond containing 25,000 mg/L of salt. The new owners propose to flush the pond into their discharge pipe leading to the Atlantic ocean, which has a salt concentration above 30,000 mg/L. What flow rate of freshwater (in m3/s) must they use to reduce the salt concentration in the pond to 500 mg/L within one year? Round off to four decimals.