ENVOWater Treatment Chemicals
Diatomite / Perlite Filter Aids
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Adsorption, ion exchange & filtration

Diatomite / Perlite Filter Aids

Diatomaceous earth / perlite

Diatomite or perlite filter aids for suitable filtration equipment, supporting filter-layer formation and particle retention.

Confirmed availableMedia & resins
Chemical identity
Confirm the exact composition and chemical identity against the current product SDS. A formulation or product family may not have one CAS number.
Product form
Specified filter-aid powder.
Add application & specification details
Application value

Uses and application conditions

Filter media & filter aids

Use these checks to compare equivalent supply specifications and narrow the candidate range for your actual process.

Product selection support

Discuss water conditions, process position and current products.

Specification & document coordination

Align specification basis, test methods and grade-specific documents.

Packaging & supply coordination

Review quantity, packaging and destination requirements.

Specifications & selection

Specifications and order requirements

Discuss your current grade or operating conditions. ENVO codes identify sales requirements; manufacturer grades, supply specifications, test methods and document versions are confirmed for the selected product.

Application-specific specificationMedia & resins

Availability confirmed. Share the intended use, preferred form and key requirements to confirm the grade and its technical documentation.

Application conditions & technical scope

Match filter aids to equipment and downstream use. Confirm material source, dust management and final water-contact requirements separately.

Appearance and supplied form

Confirm the form before comparing specifications.

Check the required form, then compare the composition, specifications and test conditions of the specific grade.

Product forms to compare

Diatomite and perlite filter aids are both fine powders, but have different structures and grades

Diatomite color varies with natural, calcined and flux-calcined processing. Filter-aid perlite is commonly white to off-white; confirm the selected specification

Diatomite filter aidDepends on natural / calcined / flux-calcined processing · Fine powder
Filter-aid-grade expanded perliteWhite to off-white, depending on grade · Fine powder

Appearance information supports initial screening only. Color cannot establish chemical identity, concentration or quality grade. Confirm the actual batch using supply documents and samples.

Appearance and technical references

These public sources help check product categories, possible appearances and general application limits. They do not replace the TDS, SDS or batch COA for a specific ENVO grade.

Application issues and troubleshooting

Diatomite / Perlite Filter Aids — troubleshooting checks

Review symptoms, possible causes and verification steps together to prepare a more focused product-selection discussion.

01Slow filtration and short cycles
Possible causes
Filter-aid grading too fine, unsuitable precoat or body-feed method
Investigation and resolution
Select grade using suspended-particle size and filtration trials; check precoat and body feed
Checks required
Filtrate target, solids content, filtration equipment and differential-pressure curve
Application limits
Different filter aids are not all interchangeable at equal mass
02Turbid filtrate or filter-aid powder breakthrough
Possible causes
Abnormal support medium, precoat integrity or pressure disturbances
Investigation and resolution
Inspect filter cloth / screen, precoat uniformity and startup / shutdown procedure
Checks required
Support pore size, startup sequence, pressure fluctuations and effluent particles
Application limits
SEM images cannot replace actual sieve and filtration verification
03Difficulty managing dust or spent filter cake
Possible causes
Dry-powder exposure and concentration of target contaminants in the cake
Investigation and resolution
Plan enclosed loading, dust collection and spent-cake disposal using the specific SDS
Checks required
Specific grade, SDS, loading method and cake composition
Application limits
Check crystalline-silica information for calcined products by grade

Need help with your current product?Share your current grade, observed issues and water-quality data. We can define comparison conditions before discussing suitable specifications.

Technical documentation

Get the information your purchasing decision needs.

TDS

Technical data sheet

Product properties, test basis and specification details.

SDS

Safety data sheet

Composition, handling, storage and transport information.

COA

Certificate of analysis

Batch-specific analytical items and results.

Scope & qualification

Certification & use documents

Review the scope for the product and destination market.

Packaging & delivery

Confirm net weight, package material, label, delivery condition and destination documents for the selected product and order.

Technical references & scope

Industry references describe general uses. Product specifications, certifications and application results require the corresponding supplier documentation.

PURCHASING QUESTIONS

More questions, answered.

Diatomite / Perlite Filter Aids: Slow filtration and short cycles — what should I check?

Select grade using suspended-particle size and filtration trials; check precoat and body feed

What should I compare when buying Diatomite / Perlite Filter Aids?

Share the application, current product, purchase quantity and delivery location to help confirm a suitable specification. Key checks include: Media composition; Particle size & grading; Treatment objective; Capacity or performance test conditions; End-use documents. Compare the current grade document and the same test basis before choosing an alternative.

Which documents should accompany a Diatomite / Perlite Filter Aids enquiry?

Request the current grade-specific TDS and product SDS, the COA for the actual supplied batch, and any intended-use documents required for the destination. Share the application, specification, quantity and delivery requirements. Document version, batch coverage and public-release scope are confirmed for the specific request.

ENVO CHEMICAL

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Applications
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Treatment objective
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Products of Interest
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Start with What You Know

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