Why is rusty water in the well and how to clean it

According to statistics, every Russian every day consumes about 250 liters of liquid, for a year the total volume reaches 1700 cubic meters. Water intended for ingestion and cooking must fully comply with all sanitary requirements, there is no sediment in such a liquid, it has no smell or taste. The concentration of mineral salts in drinking water is regulated by the standards of the Russian Federation.

Why rusty water comes from a well

Water may become rusty due to damage to the well.

Rusty water may appear in a well for several common reasons:

  • Geological changes. Aquifers, like soil strata, are constantly in a state of movement, and their displacement inevitably leads to a change in the chemical composition of water.
  • If the depth of the water intake point is small, meltwater, floods, showers, etc. can penetrate into the aquifer.
  • Another fairly common cause of well fluid contamination is the penetration of the top water into it.

Also, the cause of deterioration in chemical composition may be the ingress of foreign objects into the mine. As a rule, such troubles are eliminated quite simply.

The problem that it is impossible to deal with is the source itself is excessively saturated with divalent iron. This chemical element, during oxidation, stains water in yellowish hues. Color can be from light yellow to brown. The intensity of staining depends on the chemical composition, saturation with macro- and microelements.

The danger of rusty water to the human body and technology

Rusty water is unsuitable for domestic use, it also spoils plumbing and heating appliances

Rusty water can have an unattractive appearance and an unpleasant smell, as well as adversely affect the human body, equipment, etc. Danger of using iron-rich water:

  • If the concentration of iron in 1 liter of well fluid exceeds 0.3 g, this can cause an allergic reaction in humans. When washing clothes and on plumbing items, characteristic streaks of red color are formed.
  • Excess iron in the body has a negative effect on the functioning of the thyroid gland, therefore, on the production of hormones. Taking a bath with such water leads to overdrying of the skin, irritation, itching.
  • Fittings, pipes, water taps quickly come into disrepair. This is due to the fact that a soluble form of iron rises to the surface, which, coming into contact with oxygen, is converted to insoluble, precipitating on the inner surfaces of the parts.

There are several proven ways to effectively purify iron-rich water at home.

How to purify water from a well

There are expensive and budget options that allow you to purify water and make it usable. Purification Methods:

  • operation of ionic columns;
  • upholding;
  • mechanical lightening;
  • aeration.

To achieve the maximum result, it is recommended to use an integrated water purification system, since each of the methods is designed to solve one specific problem.

Upholding

This method can be called the most primitive because of the ease of implementation with minimal financial costs. Operating principle:

  • The fluid is collected in a clean tank and remains at rest for several hours.
  • Sediment accumulates at the bottom, and pure water remains on the surface.

Among the disadvantages are incomplete purification of the liquid, as well as the lack of the ability to implement the method in places where pumping equipment is used.

Mechanical cleansing method

The higher the concentration of rust, the more often you need to change filters

To implement the method, it is required to install various kinds of purification filters. Typically, one of the following varieties is used:

  • Sorption. Their work is based on the active substance, which enters into an active reaction with water. As a rule, it is activated carbon, potassium permanganate or salt.
  • The deep one is designed for rough cleaning of tap or well fluid; it is mounted in a casing string.
  • Cartridge cartridges visually represent a system of flasks with replaceable filter segments.
  • Coarse cleaning - mounted at the exit of the casing in front of the plumbing system.

The disadvantage of the mechanical method of purification is that it does not allow to get rid of soluble impurities. It does not affect the chemical composition of the liquid.

Ion filters

This method of purification is used if it is necessary to change the chemical composition of the liquid. In columns in large quantities contains a special reagent, its composition is selected depending on the initial composition.

The principle of operation is quite simple - reacting with substances contained in water, the active components replace iron ions with sodium.

Aeration

The main advantage of this method is that the purification is carried out in several stages - first the medium is oxidized, then ferric iron settles on the walls of the filter.

Installations are divided into two types:

Pressureless system Pressure system
  • The fluid from the well is fed into a special reservoir.
  • Inside it, through special nozzles with the help of active components, oxidation occurs.
  • The bottom of the device is equipped with a special hole for draining sediment.
  • The tank is additionally equipped with a pump to maintain operating pressure.
  • The capacity of the aeration system is connected to the water supply.
  • Oxygen is supplied to the column under high pressure, which reacts with iron, which is part of rusty water.
  • At the output, the ferric precipitate is retained by filters.

A great advantage of this installation is that it purifies water not only from iron, but also from hydrogen sulfide and manganese.

The main difficulty of cleaning

If rusty water appears in the source, the samples must be taken to the laboratory for research. Based on the results, it will be known whether such a liquid is suitable for use and which cleaning systems are more appropriate to apply in a particular case.

The main difficulty of purification is that iron in water can be contained in various chemical forms.

  • Divalent is a soluble form, so getting rid of it is much more difficult. This is due to the fact that first you need to oxidize the medium so that the iron is transformed into trivalent.
  • Ferric iron is an insoluble form of a chemical element, which is small particles. It is usually quite simple to deal with the problem - you need to install cartridge filters.

Rust can occur as a result of the active life of some organisms. This is a more serious problem, since modern filters cannot retain such elements.

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