Home | ENGINEERING | Water Treatment: Prefiltration

Environmental Engineering - Water Treatment

Water Treatment: Prefiltration

   Posted On :  03.07.2016 05:55 pm

As many secondary filtration processes, and in particular slow sand filtration, require low influent turbidities, some form of pretreatment to reduce suspended solids load is required.


 

WATER TREATMENT: PREFILTRATION

 

As many secondary filtration processes, and in particular slow sand filtration, require low influent turbidities, some form of pretreatment to reduce suspended solids load is required. One way to achieve this is by using prefiltration of water through coarse media, usually gravel or coarse sand. Prefilters can have many different configurations: horizontal; vertical upflow; and vertical upflow-downflow. Vertical prefilters have become increasingly popular as they require far less land than horizontal prefilters and can take faster flow runs through them. An alternative are pressure filters, through which water is pumped at pressure to remove the suspended solids

 

load.

 

Prefilters have an advantage in that they do not require chemicals, have limited working parts and are robust. They do however, require frequent cleaning and maintenance and are ineffective in removing fine particles, thus where the suspended solid load is primarily made up of silt and clay particles prefiltration is ineffective. Prefiltration is a physical process designed to remove suspended solids and therefore it's efficiency in removal of microorganisms is a function of the microbes associated with particles. Virus removal is poor and prefiltration is not effective in the removal of cysts or bacteria associated with fine particles.

 

Tags : Environmental Engineering - Water Treatment
Last 30 days 31 views
Related words :

What is Water Treatment: Prefiltration Define Water Treatment: Prefiltration Definition of Water Treatment: Prefiltration where how meaning of Water Treatment: Prefiltration lecturing notes for Water Treatment: Prefiltration lecture notes question and answer for Water Treatment: Prefiltration answer Water Treatment: Prefiltration study material Water Treatment: Prefiltration assignment Water Treatment: Prefiltration reference description of Water Treatment: Prefiltration explanation of Water Treatment: Prefiltration brief detail of Water Treatment: Prefiltration easy explanation solution Water Treatment: Prefiltration wiki Water Treatment: Prefiltration wikipedia how why is who were when is when did where did Water Treatment: Prefiltration list of Water Treatment: Prefiltration school assignment college assignment Water Treatment: Prefiltration college notes school notes kids with diagram or figure or image difference between Water Treatment: Prefiltration www.readorrefer.in - Read Or Refer

​TOP MENU

OTHER SUGEST TOPIC

Recent New Topics :