Adsorptive media

Activated Carbon Filter Pad Manufacturer

We manufacture activated carbon-impregnated filter pads for processes that benefit from contained adsorption and particulate retention in a single supported medium.

Sri Bharathi Tech manufactures and supplies Activated Carbon Filter Pads from Ankleshwar, Gujarat, India, with grade, size and configuration selection based on the buyer’s process and equipment.

Sri Bharathi circular activated-carbon filter pads in multiple diameters
Activated carbon filter pads with adsorption, wet-strength and application overview
Activated carbon pad overview. Adsorption results depend on the fluid, contact time, operating conditions and selected grade.

Technical product information

Contained carbon. Clear specifications.

Activated carbon in a supported filter pad, combining adsorption and particulate retention for compatible process liquids.

A practical alternative to loose carbon

In suitable plate-and-frame applications, carbon-impregnated pads can replace loose-carbon dosing and subsequent powder removal.

  • Colour & odour reductionAdsorption of selected dissolved compounds, depending on the liquid and process conditions.
  • Simpler handlingContained media can reduce tank clean-up and carbon scraping in compatible equipment.
  • Application-specific gradesDifferent carbon grades help match the media to the filtration duty.

Activated carbon pad

BK 01

Grade specifications
Thickness
2 mm
Grammage
800 g/m2
Porosity
12 sec
B.F.
8 kg/cm2

Operating principle

How the filtration product works

An activated carbon filter pad incorporates adsorptive carbon within a supported filter matrix. As a compatible liquid passes through the pad, suspended particles can be retained by the media while selected dissolved colour- or odour-causing compounds may adsorb onto available carbon surface.

This replaces two separate operations in some plate-and-frame or supported-pad processes: dosing loose powdered carbon into a tank and subsequently removing that powder on paper or cloth. Adsorption capacity is finite, so colour or odour breakthrough—not only differential pressure—can determine the endpoint.

Media design

Construction and process behaviour

Sri Bharathi offers carbon-impregnated pads made with different activated-carbon grades to help optimise the filtration duty. The detailed carbon type, loading, binder or support chemistry, dimensions and extractables profile are grade-specific and should be requested before trial.

Because adsorption is molecule-specific, an activated carbon pad cannot be selected solely by particle-retention language. Contact time, concentration, temperature, pH, competing organics, flow and carbon accessibility all influence treatment performance.

What to evaluate

Important features and benefits

01

Adsorption plus filtration

Combines particulate retention with carbon-based reduction of selected dissolved compounds.

02

Contained carbon format

Can reduce loose-carbon dosing and the downstream task of capturing carbon powder.

03

Simplified handling

Pad form may reduce dust, tank clean-up and carbon scraping in compatible equipment.

04

Grade choice

Different carbon grades are available for optimisation with specific liquids.

05

Defined breakthrough

Colour, odour or analytical endpoint can be trended during a qualification run.

06

Cut-to-fit media

Dimensions should match the filter support and seal geometry to prevent bypass.

Technical presentation

Filter Pad and Activated Carbon Pad Overview

The Filter Paper & Pad Deep Dive includes media construction, pad grades and a dedicated activated carbon pad overview. The inline viewer opens directly on the activated carbon pad section.

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Technical data

Specification and enquiry checklist

The specifications below provide a practical basis for product selection. Final grade and configuration are matched to the intended process conditions.

Selection parameterProduct detailsEngineering relevance
Functional componentActivated carbon incorporated in a filter pad.Provides finite adsorption sites for compatible target compounds.
Carbon grade / loadingGrade-specific; request declared information.Drives adsorption behaviour, capacity and potential extractables.
RetentionDepends on the supporting media and process.Do not assume adsorption performance equals a particulate micron rating.
DimensionsMade for compatible supported-pad or plate-and-frame equipment.Fit and sealing are essential to avoid untreated bypass.
Operating conditionsFluid-, carbon- and support-specific.Confirm pH, solvent, temperature and differential-pressure compatibility.
EndpointBreakthrough, pressure limit, batch volume or quality criterion.Adsorption can exhaust even when the pad is not hydraulically blocked.

Process fit

Applications and selection considerations

Activated carbon pads may be considered where colour, odour or trace organic reduction is needed alongside clarification in compatible chemical, beverage, food and process-liquid duties. Suitability depends on whether the target compound adsorbs effectively and whether the pad materials meet product-contact requirements.

Qualification approach

  • Define the target compound or measurable colour/odour criterion.
  • Record feed concentration, temperature, pH and flow per unit area.
  • Sample across the run to establish a breakthrough curve.
  • Measure any initial rinse requirement and product yield loss.
  • Check for carbon fines, extractables and interaction with valuable product components.

Questions engineers ask

Frequently asked questions

Is an activated carbon pad equivalent to adding powdered activated carbon?

Not exactly. Carbon dose, accessible surface area, contact pattern and residence time differ. A side-by-side process trial is needed.

Can activated carbon remove every colour or odour?

No. Adsorption is selective and affected by molecular size, polarity, pH, temperature and competing substances.

When should an activated carbon pad be changed?

Use an agreed outlet-quality or breakthrough limit, together with pressure and throughput criteria. Pressure alone may not reveal exhausted adsorption capacity.

Does the activated carbon pad eliminate downstream filtration?

It can combine functions in some systems, but a polishing filter may still be required depending on fines control and final cleanliness.

Application support

Send us your operating conditions

Share your fluid, temperature, desired clarity, existing equipment and dimensions. Our team can then recommend a suitable construction and prepare a quotation.

Request a technical quotation