SU1328305A1 - Cleaning device - Google Patents

Abstract

The invention relates to devices that ensure the treatment of domestic wastewater in the areas of Siberia and the Far North, and can be used in natural water purification in the volume of 3-5 thousand m3 / day. The aim of the invention is to provide a compact cleaning device that provides a high degree of CLEANING while reducing capital and operating costs. The cleaning device comprises a concentrically located flocculation chamber; hydraulic type with a fluid flow stabilizer, a thin-layer block and a filter with floating polystyrene loading. In order to efficiently clean the filtering load from suspensions and especially from fatty substances, vertical rippers were installed in the filter, with a flow rate of 3-5 l / s per 1 m of air. In order to disinfect wastewater, eliminate biofouling of the filtering charge and partially disinfect the sediment, chlorine in a dose of 5 g / m liquid is introduced into the device. I s, n. f-ly, 2 ill. (Ls

Description

one

The invention relates to devices for the treatment of domestic sewage, derived from short-term facilities (pioneer camps, tourist camps, dispensaries), camps and permanent settlements located in areas of Siberia and the Far North, and can be used for cleaning drive water in the amount of up to 3-5 thousand.

The purpose of the invention is to create a compact cleaning device that provides a high degree of purification while reducing capital and operating costs.

Figure 1 shows the cleaning device, the incision; figure 2 is the same, the view in the plan.

The cleaning device consists of a vertical, round in plan settling tank 1 with a conical bottom 2 for sediment, in the case of which the float chamber 3 is concentrically located, cylinder A with filter 5 with floating lenopolymer loading and thin layer block 6, consisting of For example, from polyethylene reinforced film. Tray 7 is provided for supplying co-regulated wastewater to the cleaning device, a Segner wheel 8 is installed in chamber 3 to improve the flocculation process, and a stabilizer 9 is used to level the speeds of the swirling liquid flow. The liquid flow stabilizer is a honeycomb with a height of 0.5 m and a plan size of 0.1 x 0.1 or 0.2 x 0.2 m. A shelf unit with a height of 1-1.5 m is installed in a sump at an angle to the horizon of 60 ° . The distance between the shelves of the block is 50 mm, the height of the layer of water above the block is 0.2 m. Pipelines 10 - 13 are used to drain cleaned sewage and sludge, empty the filter and the sump. there are circular holes 14, to collect filtered water - a perforated ring-shaped pipe 15 placed in the damper layer of the load, to hold the floating load - mesh 1 &, to latch the load - vertically mounted

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rippers 17, perforated pipes with a plugged end for air supply. The number of rippers is determined on the basis of an air supply of 3-, 5 l / s m filter. The depth of the ripper is equal to the height of the filter load. The marginal layer of water above the filter is 1 m. The bottom of the filter with a view to

In order to exclude the zones, the Swirls of the fluid flow have a rounded shape that runs along a radius equal to the width of the filter.

The cleaning device works in a blowing manner.

The pre-coagulated waste water through tray 7 enters the conventional flocculation chamber 3 through the nozzles of the Segner wheel 8.

2Q — Before entering the Segner wheel, a chlorine-containing substance, such as a solution of sodium hypochlorite, is dosed at a dose of 5 g / m. In the flocculation chamber, the processes of integration and

25 hardening of coagulated structures, as well as disinfection of wastewater and mist. The downward-moving wastewater passes the stabilizer 9, in which the equalization of the velocities of the swirling fluid flow takes place. At the outlet of the stabilizer 9, the fluid flow changes its direction from the descending to the ascending with its uniform distribution over the living section of the vertical sump 1. When

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THIS, due to the force of the tin, occurs

the release into the conical part of the settling tank of the formed large structures of suspension. The thin slurry is delayed in the thin layer block 6 and, under the action of gravity, continuously slides from the shelves into the conical part of the settler. The clarified waste water enters through hole 14.

45 filter 5 and is filtered at a speed of 8-10 m / h with a decreasing particle size of the polystyrene load from 8-12 to 0.5-1 mm. Filtered and disinfected wastewater is collected by a perforation pipe 15 and piped 10 from the device. When the maximum pressure loss is reached, the flow of sewage through the tray 7 into the device stops. After

gg of this, for 4-5 minutes, the filter loading is washed by supplying air through vertically mounted rippers 17. Subsequent washing of the filter for 45 minutes is carried out with clarified water in the filter volume, by abrupt opening of the valve or valve on the pipe 11. Partially disinfected moisture content of 98.0- 98.5% continuously or 1-2 times per day through the pipeline 11 under hydrostatic pressure enters the treatment.

The compact cleaning device reduces EPC to 10-15 mg / l with the initial BOD of 1 GO-ISO mg / l of suspended solids, up to 0.1- 0.2 mg / l of phosphates, up to 3-9 cells / l of intestinal daddies, surfactants are reduced by 30-40%, ammonium nitrogen - up to 50%, the transparency of wastewater increases to 25-30 cm. At the same time, capital and operating costs are reduced by reducing the volume of the building of the sewage treatment plant to 20%.

Claims (2)

1. A cleaning device comprising a cylindrical housing with a central piping, a flocculation chamber and inclined thin-layer blocks concentrically located in the housing, a floating-load filter, discharge piping of the clarified liquid and sediment, due to the fact that, in order to create a compact device that provides a high degree of purification while reducing capital and operating costs, it is provided with a cylinder located concentrically outside the flocculation chamber, made with overflow holes in its upper part, the filter is placed in the cylinder e and is provided with perforated air pipes. 2. Device pop. 1, that is, in order to disinfect wastewater, eliminate biofouling of the filter charge, and partially disinfect the sediment, it is equipped with a chlorine supply nozzle located above the flocculation chamber. Scoa zyfiupoSuH- ma stopboda-. W Purified Soda Wastewater Emptying // 1 " N Order 3446/25 Circulation 850 Subscription VNIIPI USSR State Committee for inventions and discoveries 113035, Moscow, Zh-35, Raushsk nab., 4/5 Production and printing company, Uzhgorod, st. Project, 4