Description
This powerpoint presentation begins by providing a brief overview of nitrification and a chloramines dosing strategy to control nitrification. The problem statement asks, “Can excess Cl<sub>2</sub> be added to achieve the targetresidual at a 5:1 Cl<sub>2</sub>:NH<sub>3</sub>-N ratio?” A case study of Trinity River water is presented that included previous dosing at a 5:1 applied ratio that resulted in freeammonia in the delivery pipe, and a reduction in NH<sub>3</sub> could save money, but breakpoint rxnsare a concern. The experimental methodology included: bench-scale experiment;Cl<sub>2</sub> and NH<sub>3</sub> added to Trinity River water in chlorinedemand-free amber glass bottles (250 mL); duplicates conducted for experiments zero (0) and 4; total and free chlorine measurements by DPDmethod (Hach 8167 and 8021); and,total ammonia by Salicylate Method (Hach 8155). Raw water characteristics are presented, along with chlorine demand in Trinity River water, minimal breakpoint reactions, and disinfection byproducts results. Includes tables, figures.
Product Details
- Edition:
- Vol. – No.
- Published:
- 11/01/2009
- Number of Pages:
- 20
- File Size:
- 1 file , 960 KB
- Note:
- This product is unavailable in Ukraine, Russia, Belarus
