Reducing the use of chemical for biological wastewater treatment by technological modification
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Abstract
In the Wastewater Treatment Plant of Debrecen Waterworks, the experts working there fight daily with various problems typical of the Hungarian plant. Suitable denitrification requires the administration of an organic substance in many cases containing biodegradable organic matter. Between January 1 and December 31, 2017, 183.1 t of organic matter was needed. It was important to develop a solution for the site's specialists to ensure efficient biological wastewater treatment without the need for additional carbon input in the technology. We have also supported calculations to ensure stable denitrification irrespective of the fluctuating C/N ratio of incoming sewage. Thus, it would be unnecessary to add up to 200 tonnes of organic matter per year to the technology without which biological wastewater could be achieved.