Pureflow Bio · Manufacturer in India
Trickle Filters
Trickle filters distribute prefiltered water over biological media in a ventilated tower. Pureflow Bio manufactures trickle-filter arrangements in India for aquaculture and aquarium treatment systems.

What are Trickle Filters?
A trickle filter distributes water over biological media while allowing air contact, with the treated water collected below the media bed.
Trickle Filters applications
Fish farms and hatcheries
Best for reviewing a fixed-media biological treatment stage.
Public aquarium life support
Best for a ventilated installation with suitable access and pump head.
Research facilities
Best for a documented media bed and measurable operating conditions.
How Trickle Filters work
Distribute the water
Feed the top distribution arrangement with prefiltered water.
Contact the media
Water moves over wetted media surfaces that support an established biofilm.
Collect the outlet flow
Return the water through the approved lower outlet and hydraulic route.
Trickle Filters features and benefits
Fixed media bed
Provides biological contact surfaces without relying on moving carriers.
Water distribution
Coordinates wetting across the specified media area.
Ventilated arrangement
Allows air exchange through the designed flow path.
Fabricated vessel
Can be matched to the agreed installation geometry.
Trickle Filters models and specifications
The complete catalogue has no dedicated trickle-filter model table. Biological-filter BF models are a different arrangement and are not presented as trickle-filter ratings.
| Selection item | What the quotation must define |
|---|---|
| Feed and ammonia load | Confirm for the proposed application and selected configuration |
| Selected media volume and loading | Confirm for the proposed application and selected configuration |
| Water distribution rate | Confirm for the proposed application and selected configuration |
| Ventilation and available head | Confirm for the proposed application and selected configuration |
| Cleaning and inspection access | Confirm for the proposed application and selected configuration |
Configuration and supply details
Confirm materials, connection standard, dimensions, electrical requirements and included components for the selected equipment. The quotation defines current pricing and the approved scope.
Optional components
- Bioball media and connection arrangement to quotation
Options are supplied only when included in the agreed quotation.
How to select Trickle Filters
A BF biological-filter table cannot be relabelled as a trickle-filter capacity table.
- Feed and ammonia load
- Selected media volume and loading
- Water distribution rate
- Ventilation and available head
- Cleaning and inspection access
Build your trickle filters enquiry brief
Record your design requirements for review. This tool does not calculate an unverified treatment capacity or automatically approve a model.
Trickle Filters installation and maintenance
Installation and integration
Provide an adequately supported tower and unrestricted service access. Agree the pump duty, ventilation openings and gravity return levels before installation.
Routine maintenance
Inspect distribution, outlet passages and media for fouling. Preserve the biological stage using the agreed cleaning and restart procedure.
Warranty, dispatch and installation
One-year equipment warranty
Confirm coverage and operating requirements in the quotation.
Dispatch within 15 working days
Dispatch follows order confirmation. Transport and site delivery time are additional.
Made in India
Manufactured by Pureflow Bio in Mysuru, Karnataka. Installation, commissioning and service across India are agreed for your project.
For complete turnkey projects, confirm the project schedule, utilities, site preparation, installation and commissioning responsibilities separately.
Request a Trickle Filters quote
Share your application, preferred model and site requirements. Pureflow Bio will confirm the selected configuration and scope in your quotation.
Trickle Filters FAQs
What is a trickle filter?
Water is spread over a tall bed of biological media and trickles down through it in open air. Bacteria on the media remove ammonia, and the air contact adds oxygen and strips out carbon dioxide at the same time.
What are the advantages of a trickle filter?
It needs no blower, adds oxygen, removes carbon dioxide and is very stable once established. It's also simple, with few moving parts. The trade-off is height and the pumping needed to lift water to the top.
Trickle filter or MBBR: which is better?
Neither is better in every case. An MBBR is more compact and handles high loads in less space; a trickle filter is gentler on energy if you already pump to height, and does a better job of gas exchange. Large RAS often combine an MBBR for nitrification with a trickle or degassing stage.
Does a trickle filter clog?
It can if solids reach it, so always put mechanical filtration such as a drum filter in front. With clean water going in, the media stays open for years.
How tall does it need to be?
Taller beds give more contact time and gas exchange. The height and footprint are worked out from your flow, feed rate and the media we use. Tell us your available height and we'll design around it.
Plan your complete aquaculture or aquarium system
Connect trickle filters to the wider treatment process
Discuss equipment integration, utilities and a coordinated project scope with Pureflow Bio.



