• Revolutionary peCOD method included in Drinking Water Guidance

Water/Wastewater

Revolutionary peCOD method included in Drinking Water Guidance

Mar 28 2019

Health Canada has released a Proposed Guidance on Natural Organic Matter (NOM) in Drinking Water.   For the first time, Chemical Oxygen Demand (COD) has been listed as a parameter for monitoring and treating NOM.  The peCOD method, developed by Mantech, is referenced as it provides the sensitivity applicable for source and treated drinking waters.  peCOD follows ASTM international Method D8084 offering the advantage of measuring reactivity or oxidisability.  The EU lists oxidisability with a water quality limit of 5ppm in treated drinking water, however, the costly, time consuming and hazardous permanganate method is referenced. peCOD COD generates results in 3-5 minutes with a safe and simple method.  It provides valuable information that is different than TOC/DOC and UV254; useful for event detection, optimized coagulation and DBP formation potential.  For example, it was reported that the reactivity of the raw water for Winnipeg, Manitoba, (DOC = 7.9 mg/L) was approximately half that of Repentigny, Quebec, (DOC = 7.1 mg/L) resulting in higher DBP’s for Repentigny.  peCOD provides a quick, accurate method for determining reactivity that both laboratories and plant operators can utilize. In the treatment plant directly, operators can utilize the peCOD 24/7 testing incoming and multiple treatment points.


Digital Edition

IET 34.1 Jan 2024

January 2024

In This Edition Water/Wastewater - Continuous remote water quality monitoring networks Environmental Laboratory - The Important Role of ICP-MS in Understanding the Toxicological Link Be...

View all digital editions

Events

PITTCON 2024

Feb 24 2024 San Diego, CA, USA

Water Today's Water Expo 2024

Feb 28 2024 Chennai, India

Asia Pharma Expo/Asia Lab Expo

Feb 29 2024 Dhaka, Bangladesh

Nepal Lab

Feb 29 2024 Kathmandu, Nepal

ChemTech World Expo 2024

Mar 04 2024 Mumbai, India

View all events