Controlling Parameters in Water Analysis
Pure Water and Highly Purified Water
Pure water and highly purified water are crucial factors to production in numerous processes and industries and can be used as a raw material, auxiliary and/or for process operation. It is very important to pay particular attention to the quality of the water used as it is crucial to product quality and the safe operation of the production facilities. Therefore, continuous monitoring is essential - from an ecological as well as an economic point of view.
Process water is one of the most challenging for analysis instrumentation. Mostly this water is characterized by a certain purity, fluctuating loads, as well as very high salt concentrations. Since any disturbance in water-circuits can lead to an entire plant shutdown, resulting in huge costs, reliable and fast online water analyzers are an essential. Due to the diverse demands of various measurement challenges, application-specific analyzers provide huge advantages against standard analyzers that are used for...
Waste water, especially industrial waste water, is the most challenging water for instrumentation. Mostly, this water is characterized by highly fluctuating loads, very high salt concentrations as well as a high particle density. Hence, the accurancy and speed of measurements depends on the measurement system itself and the oxidation technique used. Obviously, application-specific analyzers provide huge advantages against standard analyzers that are used for all applications.
Nitrogen Demand Increases for Semiconductor: How Safe Are You?
As users demand ever-smaller smartphones and better televisions, semiconductor manufacturing plants are tasked with developing new products faster and using new materials. Key to the continued success of the semiconductor industry are inert gases, which includenitrogen and argon. When used safely, both nitrogen and argonplaya number of important roles within the semiconductor plant. Yet,these gasesposes a health hazard for employees if a leak occurs. How and Why Nitrogen isused in Semiconductor Manufacturing...
PeCOD Case Study – Industrial Waste Water
Clean Harbors is an industrial wastewater treatment facility in Guelph, Ontario. The facility utilizes highly refined, chemical precipitation processes, which remove heavy metals, suspended solids, and organics to generate safe effluent for discharge into municipal sewer systems. Wastewater is treated to meet municipal discharge requirements for biochemical oxygen demand (BOD5). Since BOD is a 5-day test, the results cannot be used to continuously monitor organic load. Chemical oxygen demand (COD) is used as a...
Effect of filter media thickness on the performance of sand drying beds used for faecal sludge ...
The effect of sand filter media thickness on the performance of faecal sludge (FS) drying beds was determined in terms of: dewatering time, contaminant load removal efficiency, solids generation rate, nutrient content and helminth eggs viability in the dried sludge. A mixture of ventilated improved pit latrine sludge and septage in the ratio 1:2 was dewatered using three pilot-scale sludge drying beds with sand media thicknesses of 150, 250 and 350 mm. Five dewatering cycles were conducted and monitored for each...
Utilization rates, water demand and wastewater characteristics of a shared sanitation facility in ...
Shared sanitation facilities are often the only feasible option for sanitation provision in informal settlements. When implementing infrastructure for wastewater collection and treatment, information regarding quantities and constituent loadings is required. Up to now, such data are not available for shared sanitation. In order to provide this information, this study focuses on wastewater characteristics of a shared sanitation facility in North Namibia. The input data used for planning are compared with monitoring...
Pulp & Paper: Real-Time BOD & COD Monitoring
A pulp and paper facility in Ontario, Canada has implemented an effective solution for monitoring chemical oxygen demand (COD) and biochemical oxygen demand (BOD) in real-time. To address their need for more frequent data collection, the mill installed a real-time BOD/COD sensor from Real Tech. With real time monitoring, the facility saw an opportunity to optimize nutrient dosing in the bioreator, improve overall system performance and ultimately reduce fees associated with municipal discharge regulations for...