Industrial wastes – whether solid, liquid or gaseous – are
commonly regulated in their disposal and required treatment. Gas
abatement refers to the minimization or altering of waste gas
emissions. Scrubbers and filters are also capable of removing
toxic, hazardous and environmentally damaging substances from
fluid streams. Outside of industry, sewage represents one of the
major biological wastes produced by humans. Sewage can be
collected into anaerobic digesters for biogas (methane)
production, digested in septic tanks, or collected in sewer
systems for delivery to water treatment and management
facilities. Various methods exist for water treatment including
bioremediation, chemical treatment, flocculation, settling and
separation. Municipal solid wastes or trash can be burned
(combusted) to generate power and reduce solid waste volumes or
collected in landfills where decomposition processes and
continuing disposal and recycling operations minimize and
transition the waste volume, while containing its migrat