The role of primary treatment systems is to remove settleable solids before wastewater reaches downstream processes. A primary clarifier slows the flow so heavier particles can collect at the bottom; equipment for sludge removal keeps that material from accumulating indefinitely. Surface skimming may also be needed where floating material is present.

Primary treatment systems are an efficient way to treat waste from industrial, municipal, and commercial sources. Primary wastewater treatment is a process by which suspended solids such as grease, oil, fat, and other pollutants are physically separated. Looking for an affordable way to make wastewater reusable again? Archipro provides a variety of products designed for efficient primary wastewater treatment, so check them out!

Primary Treatment Systems

Settling tanks need space for servicing as well as a suitable position within the treatment train. Confirm the applicable wastewater discharge requirements for projects in the United States with the local permitting authority before specifying a tank. Its connections must suit the proposed pipe elevations, while the layout should leave a clear route for sludge-removal equipment.

How is a primary clarifier sized?

Give the wastewater engineer average and peak flow data, along with measurements of suspended solids. Ask for a design that accounts for peak loading rather than relying on tank capacity alone.

Can a settling tank remove dissolved contaminants?

Gravity settling does not reliably remove dissolved contaminants. Have the wastewater tested to determine which downstream processes are needed to meet the discharge requirements.

What maintenance provisions should be specified?

Request the manufacturer's sludge-removal procedure and inspection schedule before finalizing the installation. Provide safe access for servicing, and treat tank entry as a potential confined-space hazard requiring assessment and appropriate controls.