||Ecological engineering, specialising in wastewater treatment and water protection. Quality assessment of waters (surface, drainage and groundwater). Water and nutrient cycles. Natural systems for wastewater management. Wastewater treatment and reclamation. Sustainability assessment of on-site sanitation systems. Properties of soils irrigated with wastewater. Composting of organic wastes. Hygienisation and reuse of human waste. Microbiology of water, wastewater (white-, grey-, black-, brown-, and yellowwater), filter media and compost material. Laboratory analyses of viral and bacterial pathogens. Lecturer in the field of environmental engineering.