RU82696U1 - REED FILTER FOR CLEANING WATER WASTE - Google Patents

Abstract

A reed filter for wastewater treatment, containing a container of inert material with soil planted with reeds, characterized in that the device contains three radial pools arranged concentrically, equipped with an ascending overflow system and installed under a canopy made of polyethylene material.

Description

The utility model relates to environmental engineering, namely to the treatment of wastewater using a reed filter.

A technical solution is known for the treatment of domestic, industrial and storm sewage (see Kotsar E.M. Engineering structures of the “bioplate” type as a block for after-treatment and water disposal from non-canalized territories: Abstract of the international conference “Aquaterra”, St. Petersburg , 1999.). The disadvantage of the device: insufficient degree of wastewater treatment.

The closest in essence is a device for treating wastewater in a biofilter, which is a rectangular reinforced concrete tank with growing reeds (Voronov Yu.V., Alekseev EV, Salomeev VP, Pugacheva EA “Water disposal” , Textbook. - M.: INFRA-M, 2007-415 p.).

Its disadvantage is that the primary treatment of wastewater is carried out in one tank, which reduces its effectiveness due to the uneven passage of water through the filter. In addition, there are large losses due to evaporation of the treated water, since the reed filter in this system does not have anti-evaporation devices.

The technical task is to create a reed filter for wastewater treatment, which would be devoid of the above disadvantages.

The technical result is the improvement of the reed filter device with its inclusion in the circulating water supply system, providing a more complete and reliable treatment of domestic wastewater, as well as reducing their evaporation losses. It is achieved by making a number of changes to the reed filter design.

The design of the reed filter for wastewater treatment is shown in Fig. 1 and is a system consisting of three radial pools located concentrically 1, 2, 3. The walls and bottom of the pools are an anti-filter layer and are made of inert waterproof materials (concrete, plastic and etc.). In the walls of the central 1 and the subsequent pool 2, holes are made - overflows 4: in the pool 1 - in the lower part of the walls 4a, in the pool 2 - in the upper part of the walls 4b. All pools are located under a canopy 6, which is made of polyethylene material to reduce water loss due to evaporation during the hot season. In winter, water is protected from freezing by dead reed. At this time, the degree of purification is reduced by approximately 30%, but the filtered water in terms of its performance does not exceed the established MPC.

Fig. 2 shows a reverse water supply system with a reed filter. Its work is carried out as follows: a pipe for supplying domestic wastewater 5 from the living room is led to the bottom of the pool 1. Thus, contaminated wastewater gets there. After the initial filtration and sedimentation, water from the surface through the lower overflow openings 4a flows from there to pool 2, where the degree of mixing with newly arrived contaminated waters is significantly reduced. After that, through the upper overflow holes 4b, water enters the pool 3 in order to implement a more complete and reliable cleaning. A pipe 8 is supplied to the upper part of the pool 3 for the removal of purified and clarified water to the factory filter 10 for further treatment. In order to prevent clogging of the pipeline by soil particles, plants and other debris, a removable grate is installed at the junction of pipe 8 with pool 3. Water is pumped to the filter 10 using a first lift pump 9. For disinfection of filtered water and its subsequent storage, two are included in the system clean water tank

11 and 12. After cleaning, water is supplied to the tank 11, as the tank is filled, the clean water tank is closed, and its contents are disinfected by traditional methods: chlorinate or irradiate with ultraviolet light. Up to this point, it is not used to supply water to the living room, and after that, the tank can be opened and used to provide water. The clean water tank 12 by this time is no longer used for water supply and feed water into it from the treatment facilities, using reservoir 11 to supply water. The clean water tanks are used alternately: one for storage, the other for use, and then vice versa. Water supply to the living room is carried out using a second lift pump 13.

The proposed model of the reed filter allows you to more effectively separate the newly arriving effluents from the already filtered ones and thereby ensure a more intense and uniform passage of the treated water. In addition, the possibility of using a utility model in local recycling water supply with a lack of local water sources is being considered.

Claims (1)

A reed filter for wastewater treatment, containing a container of inert material with soil planted with reeds, characterized in that the device contains three radial pools arranged concentrically, equipped with an ascending overflow system and installed under a canopy made of polyethylene material.