SU1328303A1 - Installation for removing inorganic and organic fouling from waste water - Google Patents

Abstract

The invention relates to devices for physico-chemical treatment of wastewater from inorganic to organic pollutants, can be used for treatment of wastewater from the production of paints and varnishes and alcohols in the chemical, engineering and other sectors of industry and improves the cleaning efficiency. The installation consists of a vertical sealed enclosure, inside of which a sludge collector is placed, combined with a flocculation chamber, and a cylindrical pressure filter. On the outer side of the filter, the shelves of a thin-layer settling tank, made curvilinear, convex downward, are installed along the ring. In the upper part of the housing there is a confuser for collecting pop-up substances. Intensified cleaning in a thin-layer settling basin from suspended particles, additional release from pop-up, floated, and emulsified particles when the flow rotates above the confuser edge, allows reducing the size of the pressure filter and filtering water at high speeds. 3 ill., 1 tab. (L from one to 00

Description

The invention relates to devices for physico-chemical treatment of wastewater from inorganic and organic pollutants, namely, devices for cleaning wastewater from mechanical, emulsified and dissolved pollutants, and can be used for cleaning wastewater from the production of paints and varnishes and alcohols in the chemical industry. , engineering and other industries.

The aim of the invention is to increase the cleaning efficiency.

Figure 1 presents the installation, General view; Fig. 2 is a view A of Fig. 1; Fig. 3 is a layout diagram of a settling tank.

The physicochemical cleaning plant consists of a vertical sealed enclosure 1 inside which a sludge collector is placed, combined with a flocculation chamber 2, and an open, di-linear pressure filter 3 is mounted on the frame. On the outer side of the filter there are 4 shelves of curvilinear fixed around the ring vtuklokostyu.dnizhe. The edge of each shelf closely adjacent to the cylindrical surface of the pressure filter housing.

The housing 1 in the upper part is equipped with a confuser 5 with a height equal to 0.4-0.6 of the diameter of the pressure filter (d). The unit is equipped with wastewater intake units 6, removal of treated water 7, blowing out pop-up, flooded and emulsified substances 8 of loading of filtering material 9, unloading sludge 10 and unloading of filtering material 11.

The installation works as follows.

Pre-treated wastewater (reagents and coagulants are injected into wastewater before installation and they are preloaded with compressed air) are fed under a pressure of 0.4-0.5 MPa / cm through conduit 6 to a sludge collector combined with flocculation chamber 2, where coagulation and aggregation of suspended and emulsified particles, as well as precipitation of coarse impurities. Further, the flow moves upwards and falls on the shelves 4 of a thin-layer sump, where under the action of

five

0 5

gravitational forces and due to the normal component with respect to the violation of the input velocity of water, which was formed due to the double curvature, is intensively released from suspended substances. Medium and fine suspended solids of inorganic and organic substances are retained on the shelves of the thin layer settler.

The flow of water coming out of the thin-layer sump rises vertically up to the edge of the confuser 5 and then abruptly changes its direction downward 180, entering a cylindrical open pressure filter.

When the flow of water is rotated by 180, the emulsified substances are floated on air bubbles and emulsified into the chamber above the confuser, from where the latter are removed by blowing through node 8.

The location of the confuser is relative to the top of the hermetic case, which is selected visually by the number of splashing substances on the model, is shown in the table.

An increase in the distance of more than 0.6 d is not relevant.

The presence of a confuser also ensures a more even distribution of water over the surface of a cylindrical open pressure filter and creates conditions for its stable operation.

Sewage water, passing through a flocculation chamber, a thin layer settling tank and a confuser, is freed from coarse, medium and small particles of organic and inorganic origin, for filtering and sorption into the open cylindrical pressure filter 3 for purification.

Intensified cleaning of suspended particles in a thin-layer settling tank, additional release from floating, floated and emulsified particles when the flow turns over the edge of the confuser allows reducing the size of the pressure filter and filtering water at high speeds.

The present invention allows the use of a plant for the purification of industrial wastewater containing inorganic and organic substances (COD up to 5000 mg / l, suspended solids up to 1500 mg / l, and oils.

five

0

Claims (1)

petroleum products and other emulsified substances up to 200 mg / l). Invention Formula A wastewater treatment plant for inorganic and organic pollutants, comprising a sealed enclosure, inside of which a sludge collector is placed, combined with a flocculation chamber, a thin-layer settling tank with shelves, a cylindrical pressure filter and wastewater and wastewater removal units, in order to increase the cleaning efficiency, the shelves of the thin-layer settling tank are installed around the ring outside the filter and are curved with a convexity directed towards the wall of the housing, which is provided with a confusion with an anchor attached to its upper part and an equal height equal to 0.4-0.6 of the diameter of the pressure filter. WadA 2 Editor N. Gunko Compiled by T. Ledneva Tehred M. Khodanich Proofreader S. Shekmar 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