Wastewater sampling/reserving device capable of continuously monitoring concentration peak of COD (chemical oxygen demand) in water sample, and monitoring method employing the same

El estudio de dispositivos de muestreo de aguas residuales no cesa y, en este artículo se da a conocer un nuevo muestreador de aguas residuales capaz de monitorear continuamente picos de COD (demanda química de oxígeno) en agua. Este dispositivo reduce la caga de trabajon de protección ambiental y el coste de los análisis.

The invention discloses a wastewater sampling/reserving device capable of continuously monitoring peak of COD in a water sample, and a monitoring method using the device.  The device comprises a wastewater sampling peristaltic pump, a COD UV measurement unit, a peak COD wastewater temporary storage unit, a sample reserving device, an intelligent controller, a plurality of discharge pipes, an influent pipe, an outer sampling device, and a plurality of electromagnetic valves.  The intelligent controller controls the wastewater sampling peristaltic pump and the electromagnetic valves and receives signal output by the COD UV measurement unit to continuously monitor a wastewater discharge field and reserve a wastewater sample with the largest COD in one monitoring period.  Only one anal. test is performed and no anal. test device is needed for the wastewater discharge field, so as to greatly reduce workload of environmental protection and reduce test cost.

Zhou, Xingpeng; Li, Jing; Wang, Xiaojun; Sun, Kai; Ling, Xuemeng

Faming Zhuanli Shenqing (2013), CN 102866123 A 20130109