Streams of rain wash away huge amounts of dirt and sand from roads, roofs, and lawns. All this suspension is sent to the storm drain, where it easily clogs expensive wastewater treatment structures. The accumulated pollutant can completely block the operation of drainage systems, which can no longer cope with the intake of wastewater, flooding roads and sidewalks.
Sand traps for wastewater treatment are special devices that remove sand and other mechanical particles from wastewater. Removing large contaminants from a clogged treatment plant is an expensive and complex procedure. It is much easier to ensure the removal of large debris at the initial stage, when the wastewater just enters the drainage.
Options for removing sand from wastewater
Water purification from inorganic suspensions is carried out in various ways ways. The liquid can settle with substances of different densities settling at the bottom under the influence of gravity, or be passed through filter units.
Sand collectors have a wide range of applications. They are installed for the treatment of storm drains, in industrial enterprises, and in agriculture. The equipment acts as part of the domestic sewage system. One of the options for use is as an element of a wastewater treatment system for villages. The principle of organization and operation of such equipment is presented on the page https://www.tehnosfera-group.ru/ochistnye-sooruzheniya-dlya-poselkov/. Sand traps are present in almost every wastewater treatment system.
In some cases, industrial wastewater is treated together with domestic wastewater. They contain a variety of insoluble pollutants. Depending on the type of production, preliminary purification is carried out using various methods: the use of coagulants, sedimentation on grates, in settling tanks, on sieves. To compensate for the uneven load on treatment facilities, buffer tanks provide a uniform design flow of water, ensuring further purification.
In most cases, sand traps are used together with other purifiers, but sometimes as a stand-alone device.
h2>Advantages of application
The use of sand traps has a number of advantages:
- Reliable removal of mechanical particles of any nature, the density of which is higher than that of water.
- High, stable performance. Regular cleaning of the sand hopper does not affect the performance of the equipment. The devices demonstrate efficiency even in the treatment of industrial wastewater.
- Protection of expensive treatment equipment from breakage under the influence of solid pollutants.
When installing industrial treatment facilities, installation of sand traps is possible together with grease traps, which improves the quality of wastewater treatment.
