acidic wastewater anaerobic treated directly
adsorption-biodegradation anaerobic sequencing bat
aerobic and facultative anaerobic bacteria
aerobic gradually turn into anaerobic alternating process
alternative aerobic and anaerobic
an anaerobic baffled reactor with new structure
anaerobic + aerobic tandem system
anaerobic acidification
anaerobic activated sludge
anaerobic active sludge