Measurement and mathematical modelling of odor gases in a collagen and gelatine plant - Case Study
The objective of this study was to identify and quantify odor sources throughout the production process of a gelatine and collagen factory located in the interior of Paraná State, Brazil. At the same time, an atmospheric dispersion model was used to identify the radius of coverage and the frequency of perceived values of odor around the company and, thus, propose improvements of control systems or installation of new systems.
The NH3 (ammonia) and H2S/CH4S gases (hydrogen sulphide/methyl mercaptan) were measured during 7 consecutive days around emission sources and throughout the company’s production process. Thus, the monitoring was performed on the arrival of the trucks with the used raw material (bovine hides), loading of storage hopper, storage shed and effluent treatment station. Electrochemical, automatic and continuous measurement Cairpol’s sensors were used. This equipment records the measurements in ppb (part per billion) every minute and stores them in an internal data logger.