Wastewater Treatment

Wastewater Treatment

is a process that modifies wastewater characteristics such as biological oxygen demand (BOD), chemical oxygen demand (COD), pH, etc., to enable it to meet standard effluent standards.

Wastewater Treatment

The major aim of wastewater treatment is to remove as much of the suspended solids as possible before the remaining water, called effluent, is discharged back to the environment.

Wastewater Treatment

Wastewater Treatment

ScreeningRemoves large objects

Bar Screen

Wastewater Treatment

Settlement Tank

Primary Clarifier

Primary TreatmentSeparation of organic solid matter from the wastewater

Wastewater Treatment

Aeration Tank

Settlement Tank

Secondary Clarifier

Secondary TreatmentAir is pumped into the water to encourage bacteria to breakdown remaining sludge

Wastewater Treatment

Chlorine contact Tank

Tertiary TreatmentInvolves the disinfection of wastewater

Wastewater Treatment

Safety & Maintenance

• All pipes and electrical systems must be labeled appropriately. This includes identifying intake and outlet pipes and any equipment that presents an electrical flash hazard.

• If workers must perform repairs near live equipment, make sure they have the appropriate tools and protective gear and know how to use them.

• Ensure all railings are adequate to prevent falls.

• Warnings must be prominently placed in any hazard zones. Barricades should be set to prevent unauthorized entry.

Safety

Safety & Maintenance

• Regulating water consumption to decrease treatment plant loading • Taking care of regular precipitation tank emptying and excess sludge removal, usually 1–3 times per year • Inspecting the treatment plant once a month• Having the treatment plant serviced once a year• Taking care to prevent any harmful substances from entering the treatment plant• Keeping information about the treatment plant up-to-date

Maintenance