Published Anaerobic treatment of sewage sludge and grease trap sludge in continuous co-digestion by Neczaj E., Bien J., Grosser A., Worwag G. and Kacprzak M. 141-148_851_NRG_02_Neczaj_14-2.pdf
Published Gas injection into aeration tanks by Latsa M., Stamou A., Markatos N., Assimacopoulos D. 06_latsa.pdf