Sediment filtration of water

SEDIMENT FILTRATION

The first step to clean drinking water

FILTRATION IN NATURE AND WATER QUALITY

The natural filtering process is an essential part of the water cycle. Rain seeps through several layers of earth and stone that filter the water and free it from suspended matter. The rainwater then collects in the ground water, which also serves as a source of drinking water.

Sediment filtration of water

 

 

THE CHALLENGES OF WATER TREATMENT

Progress in the industrial and medical fields simplify and improve our life in many areas. The downside of progress means increasing quantities of harmful substances, such as drug residues, pesticides, insecticides, microplastics and nitrates. These find their way into the surface water and groundwater and can thus also penetrate into our drinking water cycle. Waste water treatment plants and nature can not fully remove these synthetic substances. This means that artificial filter systems are essential to be able to maintain drinking water as a healthy foodstuff in the long term.

To supplement the treatment of water in the waterworks and ensure optimum filtration, several filtration systems can be used and combined with each other and fitted directly to water taps in the home or in industry. Above all, reverse osmosis membrane technology has proved to be a reliable and effective separation process. Unlike with other artificial filtration processes, this technology is a purely physical process that works without chemicals.

Due to the fine pores of the reverse osmosis membrane, they are prevented from clogging by means of two pre-filters. Pre-filtration consists in a sediment filter and an activated carbon filter.

Sediment filtration
Sediment filtration: impurities such as sand or rust particles are removed

RELIABLY REMOVES COARSE IMPURITIES SUCH AS SAND, RUST PARTICLES AND TURBIDITY

In the waterworks, undesired substances are filtered out of the groundwater or surface water to produce potable water. This water then passes through an extensive network of pipes until it reaches the consumer. On the way to the tap, particles such as sand and rust can find their way into the water.

WHAT IS SEDIMENT FILTRATION?

Sediment filters can reliably remove coarse impurities such as sand, rust particles and turbidity from the water. The diameter of the filter pores varies from 1 micron to 80 microns (1 micron = 0.001 millimetre). Smaller molecules such as H2O (water), the ions Na+ (sodium), Cl- (chloride) and other minerals are still able to pass through, however.

THE FIRST STEP TO CLEAN DRINKING WATER

Sediment filtration is thus an important preparation process for finer filtering methods, such as reverse osmosis membrane technology. The filters have to be replaced after a while, and finally the substances filtered out of the water deposit on the filter material.

FACTS ABOUT SEDIMENT FILTRATION

  • Turbidity and impurities such as sand, rust particles and algae are filtered out of the water.
  • How often a filter needs to be replaced depends on the quality of the water.
  • In the case of drinking water filtration system fitted to taps, sediment filtration is used mainly as a preliminary stage for reverse osmosis.
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