Biological wastewater purification with a downstream precipitati

Biological wastewater treating system

Biological wastewater treatment process

Biological wastewater treatment process and reactor

Biological wastewater treatment system

Biological-abiotic waste treatment

Biologically active reactor system and method for treating...

Biolytic filtration

Biomass concentrator reactor

Biomass growth process with separate aeration and media compartm

Biomass impoundment management system for purifying water

Biomass separation apparatus and method

Biomass separation apparatus and method with media return

Biomass support members and panels, biological processes and...

Biomass treatment of organic waste or waste water

Biomembrane filtration apparatus and method

Biomolecule sample immobilization

Biomonitor to safeguard water purification process from toxicant

Biopolymer filtration process

Biopolymer use as a sand filter aid