INVESTIGATION OF ANAMMOX PROCESS IN THE PRESENCE OF SULPHACETAMIDE AND P-TOLUENESULPHONAMIDE

Proceedings

INVESTIGATION OF ANAMMOX PROCESS IN THE PRESENCE OF SULPHACETAMIDE AND P-TOLUENESULPHONAMIDE

Makuch A.1, Mędrzycka K.1, Płaza E.2and Stosik M.1

1, Gdansk University of Technology, Poland;

2Department of Land and Water Resources Engineering, Royal Institute of Technology,
(free)

The influence of selected sulphonamides such as sulphacetamide (SCM) and ptoluenesulphonamide (p-TSA) on the Anammox process was investigated. The short-term (14-hour) and long-term (90-day) exposure of mixed Anammox culture to SCM and p-TSA was applied. The aim of long-term exposure study (conducted in continuous-flow bioreactors) was to investigate a long-term influence of sulphonamides on Anammox process and on adaptation of Anammox culture to sulphonamides. The batch test performances resulted in the N-removal rate for non-acclimated and acclimated Anammox culture. The experiments were carried out at sulphonamides concentration of: 10, 20, 40, 80, 100 and 1000 mg/dm3.

The results confirmed that both sulphonamides inhibit the Anammox process. However, the effect is more evident in the case of SCM. The higher the sulphonamides concentration, the stronger inhibition of microorganisms’ activity was observed.

KEY WORDS
Anammox; nitrogen removal; sulphonamide

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