Orpredox Articles & Analysis
13 articles found
Measuring equipment for water quality is becoming increasingly advanced. Some meters can be equipped with up to 13 different sensors. But is it always necessary to measure so many? Which parameters should you investigate in which situation? In this article we will examine various water problems and their corresponding parameters. When measuring water quality, it is first important to determine ...
Background: Water quality detector is a device used to measure the quality of water. It usually consists of multiple sensors and measuring systems to detect water pH, REDOX potential (ORP), electrical conductivity (EC), dissolved oxygen (DO), temperature, turbidity, hardness, ammonia nitrogen, nitrite nitrogen (NO2-N), nitrate nitrogen (NO3-N), total phosphorus (TP), total nitrogen (TN), ...
The role of water quality sensor:Water quality sensor is a device used to measure water quality, usually consisting of multiple sensors and measuring systems. The function of water quality sensor is to detect various substances in water, and convert them into electrical signals, and then through the measurement system for processing and analysis, get the indicators of water quality. Water quality ...
Site Summary: CL-Out® bioremediation removed vinyl chloride and other chlorinated solvents found in ground water at a former automobile repair shop. The solvents were thought to have been released from an underground storage tank (UST). After the UST and associated contaminated soil were removed, CL-Out bioremediation was implemented to reduce the levels of contamination to site-specific ...
Why is Calibration Required? It is a simple question and a simple answer. Data is worthless if it is not correct, and calibration is required so we–the users–can verify that the electrode or sensor is giving us the correct data. It is one of the most important aspects of quality control and, in extreme cases, can cost tens of thousands of dollars and hours of time if even one ...
This article focuses on the common causes of noise in analog devices related to water quality measurement, but the concepts and preventative measures are applicable to any electronic measuring device. We go over the types of electromagnetic interference along with how to identify and prevent them. Additional tips for designing a noise-resistant system are provided toward the end of the ...
Find out how the Ultrameter II gave Dr. Tempest fast accurate results that let him act quickly and help save the lives of thousands of people. When disaster strikes, people are scared and disorganized. They need resources — safe water and proper sanitation — that aren’t easy to come by in the aftermath. Without the help of humani-tarian organizations to provide assistance, ...
RS Hydro were contacted to specify and commission a Proteus real-time water quality monitoring system to monitor BOD, COD & Total Coliforms at a marine leisure centre. The client wanted the ability to have real-time or near real-time data from a system so that they could be alerted immediately if it was not safe for people to swim in. The Proteus was provided with BOD, COD, Total Coliforms, ...
Following the installation of in-pipe drinking water quality monitoring sondes, distribution engineers discovered an occasional significant disparity between the Intellisondes’ data and results from grab samples tested by a photometer tablet (DPD) method. For most of the time, there was close agreement between the two methods, but periodically, the photometer results varied wildly, whilst ...
In-pipe monitors turn dreams into reality The quality of tap water has improved enormously in recent decades, but for largely technological reasons, until recently, knowledge of water quality between the treatment works and the tap has been an almost impossible dream for water treatment and distribution network managers. In this article, Jo Cooper, Product Specialist at Intellitect Water, will ...
The objective of this investigation was to show that the low nitrate bend in the redox potential curve is in fact the result of nitrite inhibition of oxygen uptake. The oxygen sensor used indicated traces of oxygen at the time of the observed low nitrate bend which supports the hypothesis. However, an oxygen sensor with a lower measuring range is needed in order to show conclusively that this ...
Site Summary: Chlorinated solvents were found in ground water at a former automobile repair shop. The solvents were thought to have been released from an underground storage tank (UST). After the UST and associated contaminated soil were removed, CL-Out® bioremediation was implemented to reduce the levels of contamination to site-specific cleanup goals. Geology and Hydrogeology The site is set in ...
pH & ORP Measurement in High Sulfide, High Temperature and pH process solutions Specialized Sulfide Resistant Triple Junction Reference Junction Thick Wall Ruggedized, High pH sensitive measurement element Waterproofing Assembly for completely Submersible Installations The Problem A catalyst manufacturer had a process requiring the removal of sulfides. The selected method of ...