STP

Sewage Treatment Plant

A Sewage Treatment Plant, or STP, is designed to treat wastewater generated from residential, commercial, and institutional facilities. It helps remove organic waste, suspended solids, odor, and harmful pollutants before the water is discharged or reused.
STP systems are essential for maintaining environmental safety, meeting compliance requirements, and reducing water pollution. A properly designed STP helps buildings and industries manage wastewater responsibly while supporting sustainable water use.

Industries Served

Real estate and construction

Healthcare

Hospitality

Education

Commercial facilities

Manufacturing

Government and infrastructure projects

Product Showcase

Capsule Type Johkasou

Capsule Type Johkasou

Compact and efficient FRP system for domestic sewage treatment, ensuring safe and effective water management for homes and communities.

Cylindrical Type Johkasou

Cylindrical Type Johkasou

Heavy-duty industrial wastewater treatment system designed for higher loads and faster processing with minimal maintenance. Cylindrical Type Johkasou

Grease Trap

Grease Trap

Specially designed to separate oils, fats, and grease from wastewater, protecting downstream systems and ensuring cleaner discharge.

Product Highlight

ModelCapacity RangeApplicationMaterial
Capsule Type Johkasou1–100 KLDDomestic wastewaterFRP
Cylindrical Type Johkasou50–500+ KLDIndustrial wastewaterFRP
Grease TrapVariableCommercial kitchensFRP

How it Works?

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Our Commitment

At Charm Ltd., we believe that engineering is not just about building systems—it’s about creating a better future.

Environmental Responsibility

We protect natural resources and reduce environmental impact.

Reliable Engineering

We deliver efficient, high-performance systems you can trust.

Client-Centric Support

We support our clients at every stage, from planning to maintenance.

Need a Reliable STP, ETP or WTP Solution?