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Meat industry wastewater represents a serious problem regarding environmental degradation and human health protection. Even though this type of wastewater is biodegradable and therefore relatively easily purified, in Serbia, it is often discharged into the sewer and surface receiving water, without the prior treatment. The aim of the study was to create the Inventory of the meat industry and abattoir facilities in the territory of Vojvodina region, Serbia, in order to get an insight into number of entities that discharge polluted water into environment. Most of the discharged wastewater ends up in septic tanks, public sewerage system, or is removed as solid waste and stored on the landfills and open dumps. To ensure environmental sustainability, the polluted effluent should be managed in a way that minimizes its adverse effects on the environment. The first step towards achieving this goal is to determine the number of facilities, as the potential polluters. During the study 59 subjects were registered, and 52 of them took a part in the survey. The results indicate poor quality or complete absence of wastewater treatment and quality control. [ABSTRACT FROM AUTHOR]

Combustion of wheat straw was investigated in a fixed-bed reactor for two air flow rates, 1,151 and 2,125 kg/m2h. Measured temperatures, mass loss, and gas composition were used to evaluate the combustion characteristics in terms of ignition front speed, burning rate, and quality of combustion in general. At lower value of air flow rate difference between the ignition rate and burning rate was significant, which can be easily noticed by the measurement results. At higher value of air flow rate, there was still a small difference between the ignition and burning rate, while the content of oxygen in the flue gas was 10%, which leads to the conclusion that a change in the method of delivering the combustion air is necessary. [ABSTRACT FROM PUBLISHER]