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# Amount of HCl Needed with Wastewater

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I need to determine the amount of HCl that would be necessary to reduce the pH of a wastewater from pH 5.0 to pH 4.0.

The wastewater flow is given as 6,056,000 liters/day.

The HCl is a 40% solution. The specific gravity of the HCl is given as 1.20.

How do I determine both the mass and volume per unit time of HCl needed to accomplish the change in pH?

https://brainmass.com/chemistry/acids-and-bases/amount-hcl-needed-wastewater-247831

#### Solution Preview

I need to determine the amount of HCl that would be necessary to reduce the pH of a wastewater from pH 5.0 to pH 4.0.

The wastewater flow is given as 6,056,000 liters/day.

The HCl is a 40% solution. The specific gravity of the HCl is given as 1.20.

How do I determine both the ...

#### Solution Summary

This solution explains how to calculate the amount of HCl needed to change the pH of wastewater from 5.0 to 4.0 given the flow rate, percent solution of HCl, and the specific gravity of the HCl solution.

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