SU812761A1 - Device for waste water purification and its outlet to reservoir - Google Patents

Description

one

The invention relates to the treatment of wastewater from pollution and toxic substances and the protection of natural water bodies from pollution by their wastewater.

A sewage disposal channel is known, which has a rectangular shape and consists of a bottom, side walls and an overlap of il.

The construction of such a kangsha does not provide for the treatment of wastewater from contaminants and toxic substances, and for this reason it does not protect natural water bodies for breeding fish oi contaminating the aquatic environment with harmful impurities and toxic substances

A device for cleaning and disposal of sewage into a water reservoir is known, comprising a channel with sections of aquatic vegetation in the form of surface and underwater sections 21.

However, the known device is not efficient enough, since it does not fully provide for the removal of organic compounds, especially carbohydrates and protein compounds.

The purpose of the invention is to increase the degree of purification of wastewater due to the intensification of biological oxide pollution.

This goal is achieved by the fact that the device is supplied with biological oxidation sections with a load made of optically transparent tubes with openings installed at a distance from one another by supporting frames with perforated trays in which water plants are cultivated

o in front of sections of aquatic vegetation a vertical settling tank, as well as transverse partitions with openings located between sections in one vegetation and biological oxidation.

FIG. 1 is shown as construction. lengthwise cut; in fig. 2 - the same, top view; in fig. 3 - slotted shields of optically transparent loading tubes.

Device for cleaning the drainage of stonny waters in the reservoir to accommodate fish is made in the form of a channel having side walls 1, bottom 2, performed with a slope of at least 0.02. In the transverse direction, the channel is divided by perforated partitions 3 into separate sections 5. Sections 4 have pallets 6 for cultivating aquatic plants, each of which has perforated side walls and a perforated bottom with a gravel-soil loading located inside for cultivating aquatic plants. The pallets 6 are located on the support frames 7 with a gap 8 formed between the walls of the walls. Each of the sections 5 at the entrance end is provided with a wastewater receiving chamber 9 formed by a perforated partition 3 and parallel to it by a vertical partition 10 located, the upper end of which is located below the side walls 1, and In each of the sections 5 is located filter loading.

The filtering load is made up of a system of optically transparent perforated pipes 11, which are held together by a rod 12 into slotted boards 13. In each of sections 5, part of the slotted panels 13 is formed by perforated pipes 11, placed vertically, part of the slotted boards, through hole pipes 11, placed horizontally , each pair of slotted shields 13 forming a slotted grid.

The exit end of section 5 ends with a vertical settler 14, which is a recess with a partition 15 for in-depth water flow along with dead particles of biological film in the tank 14 for better sedimentation of suspended particles. In the sump 14 there is a perforated pipe 16 with Hapy drawn out through the side wall with 1 branch pipe with a valve 17.

The beginning of the channel is section 5, and the partition 3 of the receiving chambers 9 of this section is made flush, unlike the other perforated partitions 3 of similar receiving chambers 9. The receiving chamber 9 of section 5 is connected to the water source by means of a pipe, a wire with a valve 18.

A device for cleaning and for discharging sewage into a reservoir is operated following the pattern.

Water intended for additional treatment and subsequent discharge into a natural water body or intended for direct discharge into a natural water body is supplied from a water source through a pipeline through an open valve 18 to a receiving chamber 9. When the receiving chamber 9 is filled, the waste water flows by gravity and overflows through the partition wall 10 , enters section 5, in which the slotted space of slotted shields 13 passes, consisting of optically transparent perforated pipes 11, and then enters a sump 14

The implementation of the optically transparent pipes 11 perforated ensures an optimal process for the growth of a biological film inside and outside the pipes 11. The alternate arrangement of the slotted shields is 13 by pipes 11 ver

tically and horizontally provides optimal mixing of water and optimal water exchange with this kind of filtering load, which has lattice drainage.

In addition, making pipes 11 optically transparent allows the growth of both photosynthetic organisms (algae) and heterotrophic organisms (bacteria and protozoa) that make up the biocenoses of a biological film. In this case, the biofilm performs the role of a biological contaminant and implements an active wastewater treatment process.

The presence of the partition 15 allows for an in-depth process of sewage purification of wastewater along with dead pieces of biological film and suspended particles of contaminants in the lower (settling) zone which is part of the sump 14, which contributes to a more favorable process of water clarification.

From the sump 14, water through a perforated partition 3, with a uniform flow, enters section 4. in section

4 water passes in the gaps 8 formed by the bottom 2, made with a slope, and the perforated bottoms of the pallets 6, as well as between the perforated walls of the pallets 6 and the side walls of the channel itself. Since the gravel-soil load is located in the pallets 6, which has cracks and pores on which the root system is fixed with water vegetation (reed, reed, reed), when water passes through section 4, optimum water exchange between the root system of aquatic plants is obtained, thus extracting part of dissolved in water contaminants, e.g. salt solutions, phenolic compounds and petroleum products, and optimal mixing of water is also achieved.

From section 4, the water enters a uniform flow through the perforated partition 3 into the receiving chamber 9 of the section

5c a settling tank 14 of the same construction as described above, and from this section water flows further through the settling basin 14 and the perforated partition 3

in section 4 with pallets b, the depth of the plunge into the lead can be adjusted by means of the support frames 7, fixed them at a certain height in the walls 1.

The maximum number of sections 4 and 5 is two, and their maximum number depends on the length of the channel and the need to increase the degree of wastewater treatment from contamination.

With the accumulation of slag and sediment in the sumps 14, the valve 17 is opened and the sediment under hydrostatic pressure through the perforated pipe 16 and the pipe with valve 17 goes beyond the limits of this sump.

The enrichment of water with oxygen is carried out by its contact with air and repeated mixing. For better air contact, partitions 10 are provided.

The proposed channel is simple in terms of crystallization; it is convenient and easy to operate, provides a high degree of wastewater purification from contamination and toxic substances, and serves as a reliable protective barrier against contamination of natural water bodies with wastewater; it is a biologically expedient device for protecting the aquatic environment from contamination. knowledge of sewage.

The complex of biocenoses of a biological film and higher aquatic plants taken together is a model equivalent to a set of aquatic organisms actively involved in the self-purification of natural water bodies.

Claims (2)

1. Yakovlev S.V. and Laskov Yu.M. Sewage. M., stroiizdat, 1978, p. 43. 2. USSR Author's Certificate for Application No. 2675567/26 ,. cl. C 02 C 1/02, 10/20/78. 12