Technical guides on specifying, sizing and buying water treatment media and aeration equipment — written for engineers and buyers who need the numbers, not a brochure.
The calculations and parameter tables behind a media order. Each guide uses our published figures and shows the arithmetic.
Enter peak flow, loading rate and stack height to get the settling area and media volume.
GuideCalculate settling area and media volume, the 60° installation angle, and PP / FRP / stainless steel specifications.
GuideWhat every column in a carrier table changes, with the full K1–K5 and PE01–PE08 parameters.
ToolEnter flow, influent and target effluent to get the carrier volume and check the dosing window.
GuideCarrier volume from load, checked against the 15–67% dosing window, with a complete worked example.
GuideChoosing disc diameter and EPDM or silicone membrane, and the five points to confirm before quoting.
Which treatment stage addresses which problem — and how the media changes once the stage is decided.
The moving bed biofilm reactor process explained: how the carriers work and what the surface area figures mean.
ComparisonAttached versus suspended growth, and how to retrofit an existing aeration tank.
ComparisonHexagonal tubes versus flat plates: geometry, angle, blocking risk and material choice.
ApplicationWhich media belongs at each stage of a sewage or effluent treatment plant.
Standards set the target; they do not set the design. This guide maps the first to the second.
Media is one of the few purchases where two suppliers can describe the same product in ways that are not comparable.
How plastic media is classified, and how to claim preferential duty with Form E.
BuyingWhat to verify in a supplier's data, how to compare quotes, and the trade documents to ask for.
BuyingThe six factors behind the price per cubic metre, and the four points that make quotes comparable.
Straight to the product catalogue. The guides are for when you need to work out the specification or justify a choice.
Read the discharge standards guide first: it maps each parameter family to the treatment stage that addresses it, so you can identify which part of the plant is short.
Tube settler sizing for clarification duty, MBBR calculation for biological duty. Both give a formula and a worked example you can apply to your own flows.
No — everything is quoted against a confirmed specification, quantity and destination. The price factors guide explains why, and what to send us to get a comparable number.
Φ25–90 mm, PP / FRP / stainless steel
SedimentationE-P co-polymer lamella plate packs
BiologicalHDPE carriers, >800–1000 m²/m³
Aeration215 / 260 / 300 mm, EPDM or silicone
Filtration3000 m²/m³, 96% porosity
PipeworkAeration, sampling and dosing lines
Send us your application, flow rate and target standard - we will point you at the right stage and specify against it.
Ask a specification questionNo obligation - response within 24h (working days)