Illegal Wastewater Discharges And The Importance Of Organics Monitoring In Municipal Sewer Networks

Illegal wastewater dumping presents an ongoing threat to municipal collection networks. To avoid treatment and disposal fees, some commercial and industrial operations clandestinely discharge high-concentration waste directly into municipal maintenance holes. These midnight activities introduce unpredictable spikes in chemical oxygen demand (COD), total suspended solids, and fats, oils, and grease. Because municipal infrastructure is typically designed for much lower concentration thresholds, these sudden shock loads severely deplete dissolved oxygen, overload delicate biological secondary treatment systems, and inflate utility energy and maintenance costs. Relying solely on standard composite sampling or delayed laboratory analysis leaves operations teams blind until the damage hits the secondary basins. Transitioning to real-time, continuous inline spectrographic monitoring at critical lift stations allows collection teams to spot localized organic spikes immediately. This strategic oversight provides the crucial early warning required to isolate or divert toxic influent and stabilize operations.

Read the full article to discover how utilities leverage online sensor arrays to build resilience against industrial process upsets.