The sewage filters that are commonly employed are of the following types: 1. Intermittent Sand Filters 2. Contact Beds 3. Trickling Filters 4. Dunbar Filters 5. Magnetite Filters 6. Rapid Sand Filters Type # 1. Intermittent Sand Filters: The intermittent sand filter is the earliest type of sewage filter used in the biological treatment of sewage. It consists of a [...]
The important considerations in the design of high-rate trickling filters are the organic loading rate and the recirculation ratio. The efficiency of a high-rate trickling filter depends on both organic loading rate and recirculation ratio. A number of equations are available for the determination of plant efficiency based on organic loading rate and recirculation ratio. The sizing of the trickling [...]
In this article we will discuss about:- 1. Features of High-Rate Trickling Filters 2. Comparison with Conventional or Standard Trickling Filter 3. Proprietary Types 4. Merits and Demerits. Features of High-Rate Trickling Filters: High-rate trickling filters are similar to conventional or standard trickling filters except that the rate of loading (both hydraulic as well as organic) for high rate filters [...]
In this article we will discuss about:- 1. Constructional Features of Conventional Trickling Filters or Standard Trickling Filters 2. Performance and Efficiency of Conventional or Standard Trickling Filters 3. Merits and Demerits. Constructional Features of Conventional Trickling Filters or Standard Trickling Filters: In general a trickling filter consists of a watertight tank having a bed of filter media, sewage distribution [...]