JPS5992005A - Apparatus for purifying liquid and separating precipitate - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The subject of the invention is a device for the purification of liquids and the separation of sediments. In this device, coagulation, flocculation, sedimentation,
Thickening and separation and purification of the liquid proceed. The device serves, inter alia, to conduct chemical reactions for water purification and industrial wastewater treatment.

The device is operated in a continuous Ta mode.

Known devices for purification and separation of sediments include multi-flow sedimentation tanks. This type of settling tank is known as one consisting of a laminar, swash plate or 1441i.

U.S. Pat.
There are known devices for purifying the liquid and separating the precipitate, which include an insect chamber, a high-flow settling tank, a chamber for condensing the precipitate, and a container for the purified liquid. . In these devices, the suspension is separated from the liquid in a number of successive devices, usually of large volume, which have the technically necessary passageways for good separation of the precipitate. Both times are quite long and the crystallinity of the purified liquid is excessively low. The efficiency of the known device assembly is not high enough.

From US Pat. No. 4,136,012 a block-type device for the purification of water or industrial waste water is known, which device most closely resembles the device of the present invention. The interior of the device is divided into six chambers that are connected in series within itself. The six chambers are separated from each other by diagonal walls parallel to the diagonal outer walls. The first chamber is middle school [
] and coagulation, the second chamber is for the curds, and the sixth chamber is a multi-flow diagonal sheet decanter in which the finest particles of the suspension are gently removed from the supernatant.

The coagulation agent is introduced into the medium chamber and the coagulation agent is introduced into the medium chamber separating the coagulation chamber from the medium chamber.
1 It is distributed along the entire length of the inclined wall. In the vertical chamber,
There are many N-toe plates parallel to the other inclined walls of the device. At the oblique 'a' of the detenter, a laminarization of the flow and a settling of the finest particles of sediment occur. The sludge is removed through a short tube at the bottom of the device and the clarified liquid is removed in a collection device located at the top of the decanter.

This known device separates from a liquid a predetermined portion of suspensions and precipitates with dimensions not smaller than a few tens of μm to about 10 μm''! In order to separate a predetermined portion of the substance and the precipitate, the liquid purification path is completely extended, the flow rate of the liquid to be purified is reduced, and the residence time of the liquid in the device is increased. It is necessary to significantly increase its volume.

SUMMARY OF THE INVENTION It is an object of the present invention to design a device for liquid purification and sediment separation which, with relatively small dimensions, can increase the yield of suspension separation and improve the quality of the purified liquid. It is. The purpose of the present invention is to devise an apparatus for separating precipitates and suspensions having a size of up to a few micrometers from a liquid, using a relatively simple type of precipitates and suspensions. be.

It is also an object of the present invention to devise a device which reduces maintenance effort and time consumption compared to known devices and which has smaller dimensions and yet somewhat better efficiency and output. It is to be.

The inventive apparatus for liquid clarification and sediment separation comprising a contact chamber, a multi-flow settling tank, a single-density chamber for sediment and a container for purified liquid is characterized in that the multi-flow settling tank is , a precipitate compaction chamber located one step above and below the contact chamber, the clarified liquid container being an overflow pocket, and the contact chamber expanding upwardly; is in the shape of an inverted cone or an inverted pyramid, the axis of the contact chamber is inclined with respect to the horizontal, and an adjustable overflow edge is at the upper edge of the contact chamber; The outflow unit causes multiple flows to sink.
4, the outflow pocket is located below the outflow unit, and the outflow unit is located on the horizontal or inclined side of the cover plate of the unit and has a short d facing towards the side. It consists of many evenly distributed outflow elements that are
This is characterized in that the outlet faces of the short tubes of the arms are located in the same common plane, one side above the mounting plate, and the legs of the device have screws for leveling.

It is preferred if the contact chamber is filled with column packing.

Particularly important in the device solution of the invention are the shape of the contact chamber, the manner in which it is installed relative to the multi-six flow sedimentation tank, and the ability of the contact chamber to be controlled by the movable overflow edge. With OT ability to adjust dimensions.

Embodiments of the solution of the purified liquid outflow unit.

The apparatus of the present invention has four important features, such as removing suspended solids and sediments with dimensions up to about 1 μm from the liquid to be clarified. In contrast, the device of the present invention further removes suspended solids and precipitates with dimensions from about 25 to 60 μW to about 1 μm. The turbidity is increased from several cycles to about 12 qb for a known device of the same size.

It is shown that the distribution of reactants, such as flocculants, which aid in the process of separation of suspension proboscis and purification of the liquid, is carried out directly in the parrot feeding the contaminated liquid to the apparatus. The reactants thus introduced are mixed in 48 with the liquid that is purified in the inlet to the contact chamber. The upwardly expanding contact chamber shape allows the flow rate to slowly decrease to a rate close to that of the liquid along the settling conduit in a multi-flow settling tank. During the flow of the liquid with the precipitate flowing through the contact chamber in the first stage in the inlet region, solidification of the precipitate suspension by contact with the previously formed suspension filling the contact chamber and/or degeneration and/or purification occur. Under certain conditions at the outlet area of the contact chamber, the suspension forms a thin layer of suspended sediment through which the liquid to be clarified flows at a slow rate, thus separating the remainder of the sediment. Another process is to use a slag device that ultimately purifies the liquid and neutralizes the action of the contact chamber.
The process takes place in a sinking tank that performs the following functions. Sediment from the contact chamber and the multi-flow sedimentation tank is passed through an adjustable clear flow edge located on the side edge of the contact chamber to a chamber that densifies the sediment. and after preliminary consolidation proceed from the chamber to further processing. The clarified liquid flows from the multi-flow sink through an outflow unit into a clarification liquid overflow pocket. The outflow unit is a short tube pointing upwards.
It has one evenly spaced outlet element. The short tube is located on the upper side of the cover plate of the outflow unit of the multi-flow settling tank. , the outside of the short end of the beginning + Mi
protrude above the mounting plate and are located on the same common plane.

The configuration allows for an even flow of liquid through the settling tank, as well as independent outlets from one-piece short tubes, allowing for an even outflow of purified liquid from all meters of the settling tank. . Leveling the outlet 1 of the short tube is done with a leveling screw, and the cover plate may be horizontal or rigid, depending on the type of liquid and the flow. The different lengths of the outflow short pipes to the outflow surface of the facing port are shown as pth #.

The apparatus of the invention will be explained by way of example only with reference to the accompanying drawings, in which: FIG.

The contact chamber 1 is located below the multi-flow settling tank 2 and has a flow edge 4 that is adjustable. The device also comprises an overflow pocket 5 located in one of the daughter control chambers 6 and below the outlet unit '1 which covers the outlet short pipe 8 and the cover plate 9. . The rectification chamber 6 has a drain valve 10 in its lower part, and the contact chamber 1 has an inlet 'Ei tube 11. The precipitate 42 has a laminar unit which is a laminar diagonal pack 12.

The outflow unit 7 also includes a ventilation hole 13, a cover 14, and an outflow hole 15. Overflow pocket.

It has a water level 1g device 16 and an outlet short pipe 3.

The device is mounted on four legs 11 with leveling screws 18. The main part of this device, which has a settling tank 2 and an outflow unit 7, is 1. It is connected to part F of this device with a set screw 19.

The device is made of steel and protected with a chemically corrosion-resistant paint coating. The thin plate back 12 and the cover plate 9 are
Made of PVC. The dimensions of this fg are 1800 mm in length and 100 mm in width.

rnm, the susceptibility is 220 Q mm. Through this device, 7'1til of 98.5% hydrated zinc hydroxide Zn(OH)2 was conducted at 1 degree of 50Dfi/m''.1.0m3 pigeon This device, which is equivalent to a bond, is distributed throughout = 11 tons of flow, and the product name is 10 Kirisol WF-2.
With the use of an anionic flocculant prepared on the basis of polyacryloamide known under J. I'N! of 979b! , removal of turbidity was obtained.

The temperature of the purification liquid was 26°C.

[Brief explanation of the drawing]

The drawing shows a schematic elevational view of an embodiment of the device 1 of the invention. 1. Contact chamber 2...Multiple flow sedimentation tank 4...
・Marginal flow edge 5.・Warrior pocket b...-densification chamber 1...Outflow unit 8...Outlet short・
u 9...Cover plate 11...1lAll
18...Horizontal-knot screw agent Remaining material 4 people

Claims (1)

[Claims] (1) An apparatus for purifying liquids and separating sediments, comprising a contact chamber, a multi-flow settling tank, a sediment densification chamber, and a container for cleaning clothes. Said multi-flow settling tank (2) comprises said contact chamber/'? (
1) The precipitate densification chamber (6
) are located below the contact channels (1), the purification garment container is an overflow pocket (5), and the contact channels (1) have a shape that expands in the -H direction. , preferably in the shape of an inverted cone or an inverted σ pyramid, one front force of the contact chamber/s (1) is inclined with respect to the horizontal, while an adjustable overflow edge (4 ) is at the upper edge of the contact chamber (1), and an outflow unit (7) is located at the bottom of the multi-flow settling tank, and an outflow unit (7) is located at the lower end of the multi-flow settling tank, and an outflow unit (7) is located at the upper edge of the contact chamber (1);
75', is provided on the F side of the boar outflow unit (7),
The outflow unit (1) is located horizontally or obliquely above the unit (7) 0:) force/plate (9);
It is formed by a number of outlet elements (8) which are arranged fairly evenly with the short tubes facing toward On the common side, on the other hand,
Device for purification of liquids and separation of sediments, characterized in that a screw (18) is provided in the leg (17) of said device. (2. An apparatus for purifying liquid and separating precipitates, characterized in that the contact chamber (1) is filled with column packing material.