Process Design

Water Treatment with Moving Bed Biofilm Reactors

A Moving Bed Biofilm Reactor (MBBR) is an uncommon type of bioreactor that use 3D structures to grow biofilms of bacteria which clean a...

Reverse Osmosis – Effect of Salinity on Energy Usage

This series of articles aims to set out key point of reverse osmosis, such as energy consumption, materials, design, cost, and operations. Introduction Reverse osmosis (RO)...

How Do I Select Materials for Water Pumps?

Being able to select a suitable pump for a process is top priority for any process engineer. This guide explains the material selection aspect...

Disc Filters: Operation and Control

Two widely used filters, disc and drum filters, are popular in industries from aquaculture and wastewater treatment to chemical processing. These two types of...

Dissolved Air Flotation – a Detailed Explainer

Dissolved Air Flotation (DAF) is a water clarification technology that is often used in wastewater treatment. This article discusses the underlying principles, equipment design,...

What is Dissolved Air Flotation – DAF?

The name "Dissolved Air Flotation" (DAF for short) is slightly misleading, because it is not actually the dissolved air that causes flotation, but the...

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