SU1339092A1 - Installation for treating waste water - Google Patents

Abstract

This invention relates to a cleaning drain. Installing a night screen will increase the effect of wastewater treatment and the use of a more complete precipitation of suspended solids and the removal of sludge beyond the limits of the thin-layer module. For this, each plate I1 of the thin-layer module is equipped with a series of identical nk incomes and1 to the downstream plate on B (because of the height of the sediment layer of partitions 12, reinforced longitudinally by not 1,) AND; and the plane of the plates) and placed vertically and with a constant tag the distance between the plates. The baffles 12, when passing through the top-level module of the waste liquid, are equipped with a flow, quenching turbulent flow, e and transverse gradient microflows of the fluid, thereby facilitating the laminar movement, which accelerates the process of precipitation, and gradually, clarifies the waste liquid. 2 Fig. I (L so oo so oo h o Fin

Description

Invention: OTHOcfi 1 s to sewage treatment plants, namely to the device of multi-colored sedimentation tanks designed for separating suspended substances from liquids

The purpose of the invention is to increase the efficiency of wastewater treatment by providing a more complete sedimentation of suspended solids and removing the formed sludge beyond the thin-layer module.

FIG. 1 shows the installation, a longitudinal section; in fig. 2 - thin-layer module.

The device comprises a housing 1 divided by a partition 2 into a tank 3 for receiving and averaging untreated sewage provided with a float dispenser 4, and a settling and sedimentation chamber 5. On the housing 1, a 6 Ch; e-shed and flocculation chamber is installed, equipped with a distributor 7. The sedimentation and compaction chamber 5 is equipped with a thin-layer module 8 and a pipeline 9 to remove sludge from the plant under hydrostatic pressure. The installation is equipped with a chute 10 The bottom njtocKocTb of each plate 11 of the thin-layer module 8 is provided with longitudinal partitions 12 arranged vertically with a constant pitch and not reaching the plate below by a height of about sediment.

The installation works as follows.

Untreated wastewater enters the tank 3, from where a constant flow metering device 4 is fed into the mixing and flocculation chamber 6. The flake mixture is distributed by means of the device 7 between the plates 1 1 and the partitions 12 of the thin layer module 8 in the settling and settling chamber 5, where it is settled and clarified. The precipitate deposited on the plates 11 is removed by the force of gravity beyond the thin-layer module 8 and compacted. The compacted sludge through the pipeline 9 under 1 static pressure is periodically removed from the installation. The clarified water in tray 10 is discharged from the plant for post-treatment.

Vertical partitions 12 when passing through a thin-layer module

the sewage fluid stabilizes the flow, extinguishes the turbulent vortices and legs of the river gradient microflows of the fluid, thereby contributing to the laminar movement, which accelerates the process of sedimentation, and therefore clarification of the sewage. At the same time, the sediment accumulated on the plates II of module 8 slides beyond its limits, unhindered, as the lower edges of the vertical partitions are above the calculated level of the layer of accumulated sediment.

The size of the sediment layer hpf is determined from experimental data using the formula

RK-L. q

100

 wasp

Ros (100-W,

where is dj

B

0

five

0

five

P oc W

wasp

The coagulant dose is determined by trial coagulation of the runoff according to the standard procedure,

length of plates of a thin-layer module, m; treated water consumption, m / day;

total surface area of the module plates on which sediment is deposited,

specific load, i.e. the design capacity of the sump, referred to the unit of the mirror area of the sump water, is taken for straight-through

 about

sumps 1.5-1.7 m / m .h, the duration of the work of a lot of brown sump for the day, 4J

precipitation density, kg / m;

moisture precipitation,%.

Claims (1)

Invention Formula A wastewater treatment plant, comprising a housing, a mixing and flocculation chamber, a sedimentation and sedimentation chamber, equipped with a thin layer module made in the form of a package of inclined parallel plates installed at an angle to the horizontal, characterized in that, in order to improve the efficiency of wastewater treatment by providing a more complete sedimentation of suspended solids and removing the precipitate formed beyond the thin-layer module, it is equipped with partitions fixed on the lower plane of the pairs of plates llelno flow with a gap to the underlying wafer and a pitch equal to the distance between the plates. Compiled by T. Ledneva Editor G. Volkova Tehred M. Khodanych Proofreader. But ha 4181/16 Circulation 850 Subscription VNIITSH USSR State Committee for inventions and discoveries 113035, Moscow, Zh-35, Raushsk nab., 4/5 Production and printing company, Uzhgorod, st. Project, 4 1