SU1571001A1 - Structure for biological purifying of waste water - Google Patents

Abstract

The invention relates to wastewater treatment plants, disposal of surface runoff of farmland and wastewater after-treatment systems. The purpose of the invention is to increase the efficiency and cost-effectiveness of cleaning by optimizing contact with artificial biogeocenosis. The structure includes a pool with a non-filtration bottom, at the end of which there is at a length of 0.15-0.3 of the total length, a filtering load is placed at the bottom of the pool and attached, on which plantings of higher aquatic plants are located. At the base of the tank, horizontal self-flowing drains are connected to the well and the spillway, the top of which is located above the level of the filtering load in the tank. Sewage, passing through thickets of higher aquatic plants, is exposed to phyto-bicterio and zooplankton, the land part of higher aquatic plants. As a result, the concentration of normalized ingredients decreases by 30-50%. Further, water is infiltrated through the bed of the filter charge, as a result of which it is cleaned to the desired degree and discharged through the spillway for reuse or into the reservoir.

Description

The invention relates to the treatment of wastewater and can be used in water protection measures for dewatering, amelioration, for the disposal of surface runoff of farmland and systems for the final treatment of industrial wastewater.

The goal of the invention is to increase the efficiency and cost-effectiveness of wastewater treatment by ensuring optimal contact with artificially created biogeocenosis.

Figure 1 shows the structure, general view; in figure 2. - section aa in figure 1; on fig.Z - section bb in fig.k

A facility for the biological treatment of wastewater includes a pool 1 with a non-filtering bottom 2, planting higher aquatic plants 3, a sewage inlet pipeline 4, a discharge pipe 5 connected to horizontal

gravity drains 6 and having a regulating device 7; well 8, discharge pipe 9. On the base, the pool is laid filtering load 10, on which water plantings 3 are located. At the side opposite to inlet 4, the pool is equipped with an I1 over its entire width with a Hoftf length of 0.15-0.3 of the pool length Jq on. When the water tank 11 is filled with Liltruche, loading up to the level of the loading surface 10, laid on the bottom of the pool. Horizontal gravity drains 6 are laid in the base of the filtering load of the cartridge 11. The start of the discharge pipeline 9 is located in the well 8 above the level of the surface of the filter loading 10 of the tube 11.

As a filtering charge 20 TO for prim 11, a mixture of sand and sifting from acidic rocks, such as granite, granodiorite, dacite, is used, if the wastewater fed to the purification into pool 1 constantly has a high pH 25 and during the purification process of such wastewater it is necessary to lower the pH. If the wastewater fed to the treatment plant has a low pH, and for reuse or JQ discharge into the water body, the treated water must have a normalized pH, then a mixture of sand and a compartment of alkaline rocks, for example, alkaline rock, is used as the Filtering Feed 10 for water. circular pyroxenes.

As the highest aquatic plants use common reed, broad-leaved cattail.

The facility for biological wastewater treatment works as follows.

Sewage pipe 4 is fed to basin 1, the base 2 of which is non-filtering throughout the entire area of the structure, except for P. Eg. Sewage passes between higher aquatic plants 3 planted in the bulk of the filtering load 10 and during horizontal movement by Q, the entire area of the structure is exposed to the effects of phyto, bacterio- and zooplankton, micro- and algo (Lea of the periphyton, the land part of higher aquatic

At the bottom of the Filtration load 10 of mca 11, the flow drains 6 move the treated water in the structure, and the placement of drainage across the entire width of basin 1 ensures an even distribution of water, precluding the formation of stagnant zones in the higher aquatic plants.

In the zone of influence of drainage 6 above with lump 11 filled with filtering load 10, the horizontal movement of the flow of the cleaned fluid is replaced by vertical, the process of water infiltration through the thickness of the filtering load occurs, in which water is exposed to physical and chemical, biochemical and biological processes, cleaning Subscribe to the required degree. At the same time, the introduction of acidic (granites) or alkaline (alkaline pyroxenes) rocks into the composition of the material for loading out allows the adjustment of the water to be purified (adjusted or increased).

Through the system of drains 6, water enters the pipeline 5, on which a valve 7 is installed, allowing, if necessary, changing the residence time of water in the structure (the time of contact of the fluid being cleaned with artificial biogeocenosis).

Then the water enters the waste well 8, which has a spillway 9, for example, of box-type, which is permanently maintained at a level exceeding the surface level of Lilteroy loading 10 by 0.2-0.5 m, which is necessary for the development and existence of the biogeocenosis. water layer in the structure.

Pipeline 9 purified water enters the water body or is fed for reuse.

When using the proposed device in comparison with the known 20-30%, the degree of water purification from a number of normalized components of Fe increases.

(Hj,

about;,

ABOUT

five

,

m ± +. ,

four

Cu1, suspended solids, petroleum products). It is possible to regulate the pH of the liquid, completely eliminates the possibility of secondary contamination, reduces capital and

plants. As a result of this, the operating costs are reduced.

It reduces the concentrations of standardized ingredients by 30-50% of the total reduction in the structure. Due to the difference in head pressure created by the horizon (with other results at least equal to the results), the area occupied by the structure reduces the contact time of the liquid being cleaned by a factor of 2-3, and the drained 6 flows placed in the base of the filtering load 10 rim 11 begin to move water in the structure, and the placement of drainage across the entire width of basin 1 ensures uniform distribution of water, precluding the formation of stagnant zones in the thicket of higher aquatic plants.

In the zone of influence of drainage 6 above primom 11, filled with filtering inlet 10, the horizontal movement of the flow of the cleaned fluid is replaced by vertical, water is infiltrated through the thickness of the filtering load, in which water is exposed to AIS, chemical, biochemical and biological processes, cleaning to the required degree. At the same time, the introduction of acidic (granites) or alkaline (alkaline pyroxenes) rocks into the composition of the material for loading out allows the adjustment of the water to be purified (adjusted or increased).

Through the system of drains 6, water enters the pipeline 5, on which a valve 7 is installed, allowing, if necessary, changing the residence time of water in the structure (the time of contact of the fluid being cleaned with artificial biogeocenosis).

Then the water enters the waste well 8, which has a spillway 9, for example, of box-type, which is permanently maintained at a level exceeding the surface level of Lilteroy loading 10 by 0.2-0.5 m, which is necessary for the development and existence of the biogeocenosis. water layer in the structure.

Pipeline 9 purified water enters the water body or is fed for reuse.

When using the proposed device in comparison with the known 20-30%, the degree of water purification from a number of normalized components of Fe increases.

(Hj,

about;,

ABOUT

five

,

m ± +. ,

four

Cu1, suspended solids, petroleum products). It is possible to regulate the pH of the liquid, completely eliminates the possibility of secondary contamination, reduces capital and

operating costs, reduced

(with other, at least equal results) the area occupied by the structure reduces the contact time of the liquid to be cleaned by a factor of 2-3, and the capacity of the structures increases consequently, the amount of additional products resulting from the use of the mowed the construction of higher aquatic vegetation for food. The invention can be used for purification and tertiary treatment of urban and industrial wastewater, water treatment in systems for artificial recharge of groundwater and with drip oropeeia (water purification from suspended particles, sulfates, calcium, iron).

Claims (1)

Formula invented A facility for the biological treatment of wastewater, including a non-filtered bottom pool, planting higher aquatic plants, a sewage inlet pipeline and a discharge outlet on the opposite side for purified water with a regulating device, characterized in that, in order to increase the efficiency and cost-effectiveness of purification by ensuring optimal contact with artificial biogeocenosis, the base of the basin is equipped with a filtering load, on which the landings are located JQ of higher aquatic plants, at the side opposite to the inlet, the pool is equipped with a water tank across its entire width with a length of 0.15–0.3 of the pool length filled with a filtering load to the level of the loading surface laid on the bottom of the pool; in the form of horizontal gravity drains, located at the base of the pulley and connected to it a well, 20 located outside the pool and provided with a discharge pipe, the beginning of which is located in the well above the level of the surface of the filter media. H  14 rl eleven 1 2 F (/ hl