The document discusses different types of wastewater treatment processes including preliminary, primary, secondary, and tertiary treatments. It also describes anaerobic treatment which uses bacteria to break down waste without oxygen and produces methane and carbon dioxide, but does not create a standard effluent. In contrast, aerobic treatment uses oxygen and converts waste into carbon dioxide and water through bacterial respiration, changing the oxygen content of the effluent.

1. Topic
Combated UASB Aerobic system
&
Combated UASB Anaerobic system

2. Post wastewater treatment plant (WWTP)
A wastewater treatment plant (WWTP)
is an
industrial structure designed to remove biological
or chemical waste products from waste, thereby
permitting the treated water to be used for other
purposes.

3. Type of waste water treatment

Preliminary waste water Treatment

Primary waste water Treatment

Secondary waste water Treatment

Tertiary and/or advanced waste water treatment

4. Anaerobic process
 All
aerobic bacteria will die
 Reduce the smell
 Anaerobic bio degradation produce CH4
& CO2
 Dose not make standard effluent

5. Aerobic process
 Aerobic
process
 Anaerobic bacteria will die
 Aerobic degradation as assimilation of
nutrient is the bacterial cell
 Convert into co2 as bacterial respiration
and H2O
 Aerobic process change o2 in the effluent