Cation exchange allows contaminants in wastewater to bond with media particles to slow the rate of movement through the media and to allow uptake of nutrients by plants and microorganisms in the media. Chemical Oxygen Demand (COD) is a measure of the amount of organic matter oxidized by a strong chemical oxidant.
Email [email protected] for assistance if any link does not function. Texas A&M University at Galveston Annual Security Report 2020