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Research and development of prototype high sensitivity sensor

Research and development of prototype high sensitivity sensor for
measurement of hydrogen sulphide gas as ideal indicator for monitoring and control of odors in wastewater network, vetting and wastewater pumping and tools needed modelling and control to minimize it impact on the environment.

Given the importance of monitoring and control emissions of chemicals that have a negative impact on the population (either by odors or possible health effects), this project study and develop of a monitoring system is proposed which can be divided into three main parts. Sensory Detection System for Hydrogen Sulfide. It given the high costs of acquisition and maintenance of existing commercial equipment for monitoring H2S concentrations ppb range, this project aims to design and manufacture a new sensory device low cost (based on the concept of electronic nose) to allows for continuous monitoring of the concentration of H2S, allowing better control facilities deodorization. The characteristics of the sensor device design are: • H2S monitoring continuously, allowing provide measurements every few minutes. • Monitoring of the concentration at the point of emission of H2S. This point is in high concentration (about 100 ppb), and known location. • Monitoring of the concentration of H2S in immission. That is, in the vicinity of emission sources, with sensitivities in the range of 5-20ppb. • Measurement of physical parameters that can affect the measurement of the concentration of H2S, such as temperature and humidity. • Low cost, thus enabling the production of various units that enable a complete and continuous emission and immission of H2S study. • Reduced size and weight for easy handling and distribution facilities and study areas. Furthermore, the system must be able to provide: a) The weather conditions continuously (magnitude and direction of the wind) for the direction of dispersion. b) Data H2S scattering in all directions and at different distances from the emission sources. Modeling and Estimation of H2S dispersion in the environment Once the data concentration of hydrogen sulfide have been captured by the monitoring network, they have to be used to generate an estimate of how these odors are distributed in the environment. Therefore, in this project to develop a mapping system gas distribution which is based on two main blocks proposes: a) atmospheric dispersion model. This initial block uses the H2S concentration measurements taken at points of emission (high concentrations), the weather conditions (both global and local if any available) environment and environmental data such as elevation terrain or the presence of significant obstacles (like the case of buildings) to generate an initial estimate of how these odors are dispersed in the environment or (EDAR - Wastewater Purification Plant and EBAR - Wastewater Pumping Station). To do different atmospheric dispersion models available commercially explored, such as the case of AERMOD or CALPUFF, implemented the model that best suits the conditions of the plant to be monitored. b) spatial concentration estimator. Unlike other business solutions for estimating the dispersion of pollutants, this project is intended to include a new function block to consider on the one hand the initial estimates of dispersion of H2S generated by the atmospheric dispersion model, and secondly the sensory measures taken immission. This will generate H2S dispersion maps more accurate and reliable, as well as enable comparison with the initial prediction sensory in-situ measurements. Specifically, this project mathematical models that allow the merger of the two sources of information will be studied, creating a new distribution map of H2S that is more consistent with the information available at each time point. Management platform To make viewing scattering data obtained by the simulator, as well as offering the possibility of enduser interaction (Managers water companies) with the system management platform that offers will be developed: • Viewing the current dispersion map, which represents the impact of derivatives H2S odors in the vicinity of the plant in real time. • Viewing the history of dispersion maps, allowing visualize how it has changed the dispersion of odors over time. • Alert Engine. A key part of any system of monitoring is the possibility of establishing limits to be exceeded to generate alerts the user. This project aims to establish an interface that allows the definition of different alarms to exceed maximum concentrations in a timely manner or time interval. The alert system will: a. Define a specific geographical area. b. Associate one or more alert to that area. For example: i. H2S maximum value allowed in this area for over 15 minutes. ii. H2S maximum allowed in that area with wind
Acronym: 
SULFSCAN
Project ID: 
10 350
Start date: 
01-10-2015
Project Duration: 
24months
Project costs: 
1 870 000.00€
Technological Area: 
ELECTRONICS, IT AND TELECOMS TECHNOLOGY
Market Area: 
Pollution and Recycling Related

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