Aeration Facilities and Trickling Filters

This text discusses the oxygen transfer capacity of aeration facilities and the process of trickling filters.

Oxygen Transfer Capacity

The oxygen transfer capacity of aeration facilities is the amount of oxygen that can be transferred to wastewater under standard conditions. It is typically measured in kilograms of oxygen per hour.

Trickling Filters

Trickling filtration is a type of attached growth process, in which microorganisms responsible for treatment are attached to an inert packing material. Wastewater is distributed over the top area of a vessel containing non-submerged packing material. Air circulation in the void space, by either natural draft or blowers, provides oxygen for the microorganisms growing as an attached biofilm.

Advantages and Disadvantages

The advantages of trickling filters include their low cost, simple operation, and ability to treat a wide range of wastewaters. However, they can also be susceptible to clogging and require regular maintenance.