Hy-Series process

How Hy-Series Works

Treatment is a biological process, not wastewater storage. Oxygen, activated sludge, clarification, and sludge return work together as one continuous treatment system.

Process map

From incoming wastewater to clarified effluent.

01

Inflow

Domestic wastewater enters

02

Aeration

Oxygen supports biology

03

Biological action

Microorganisms reduce pollution

04

Clarification

Solids settle from water

05

Sludge return

Active biomass is recycled

06

Discharge

Clarified water exits

07

Optional polish

Filtration and disinfection

↶ Return sludge carries active microorganisms from clarification back into biological treatment.
Why extended aeration

Give the biology oxygen, time, and a stable environment.

Wastewater contains organic material that microorganisms can consume. Hy-Series supplies air to keep aerobic microorganisms active and mixes them with incoming wastewater. Extended aeration gives the process time to reduce the organic load and develop settleable biological solids.

In clarification, those solids settle away from the treated water. Return sludge then recirculates active biomass instead of allowing the useful biology to leave the process.

What each stage does

A connected process, not disconnected chambers.

01 / INFLOW

Receive and equalize

Wastewater enters the treatment route and is introduced into the biological environment.

02 / AIR

Supply oxygen

Aeration keeps the microorganisms alive, supports mixing, and drives essential process functions.

03 / BIOLOGY

Reduce pollution

Activated sludge contacts the wastewater and biologically reduces biodegradable organic material.

04 / SEPARATION

Clarify the water

Biological solids settle, treated water separates, and useful sludge returns to the process.

Do not confuse the technologies

A tank with no oxygen is not automatically a complete treatment plant.

Some systems in the local market are presented as treatment plants while relying primarily on settlement and anaerobic action. Anaerobic treatment can play a useful role, but it should not be represented as equivalent to a correctly sized and operated aerobic biological plant.

Hy-Series approach

Extended-aeration aerobic treatment

OxygenActively supplied to sustain aerobic microorganisms and treatment.
ProcessBiological reduction, clarification, and return sludge operate as one system.
OdorDesigned for odor-controlled operation when correctly loaded, ventilated, powered, and maintained.
EffluentHigher treatment potential with optional polishing selected for the discharge or reuse objective.
OperationRequires continuous electricity, correct loading, commissioning, and periodic service.
Common market confusion

Anaerobic-only or settlement systems

OxygenNo active oxygen supply; treatment proceeds under anaerobic conditions.
ProcessMay settle solids and reduce part of the organic load, but treatment scope is more limited.
OdorAnaerobic gases and incomplete treatment can create stronger odor risk.
EffluentShould not automatically be assumed suitable for discharge or reuse without evidence and further treatment.
OperationLow energy use is not proof of equivalent treatment performance.
Operating reality

Good treatment depends on more than the tank.

The plant needs suitable wastewater, continuous electrical supply, ventilation, correct hydraulic and organic loading, responsible use, commissioning time, and maintenance. Discharge or reuse quality must be assessed against project-specific requirements.

Hy-Treat supports startup, troubleshooting, replacement parts, sludge-management guidance, and optional downstream treatment without tying the plant to one equipment manufacturer.

Need the process adapted to your site?

Hy-Treat can review loading, space, discharge objectives, and installation constraints before defining the plant.

Talk to engineering