JPS6029285B2 - Portable coagulation sedimentation equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a portable coagulation-sedimentation device that adds a flocculant to a turbid liquid (water) to flocculate fine particles in the turbid liquid, and then sediments and separates the particles to obtain a purified liquid. It is.

As a portable coagulation-sedimentation apparatus, a coagulation-sedimentation apparatus that combines the advantages of a horizontal flow method and an upward flow method has been proposed and put into practical use.

FIG. 1 is a plan view showing a conventional portable coagulation sedimentation apparatus that combines a horizontal flow system and an upward flow system, and FIG. 2 is a cross-sectional front view thereof.

In these figures, 1 is the main body of the device, 2 is the flocculation loss tank,
3 is a turbid water inflow pipe, 4 is a flocculant column inlet pipe, and 5 is a flocculation tank 2
6 is a driving device for the fly bean wing 5, and 7 is a floc growth tank, the inlet 7a of which is formed at the bottom, the outlet 7b is formed at the top, and the floc growth tank 7 itself is formed. The partition wall 8 is provided to be inclined, and the volume of the floc growth tank 7 increases toward the outlet 7b side. Reference numeral 9 denotes a plurality of rectifying plates provided in the sedimentation separation tank 9, each of which is installed vertically and spaced apart from each other.

Also, each rectifying plate has a large number of holes. 11
1 is an overflow weir formed in the apparatus main body 1 at the upper part of the outlet side of the sedimentation separation tank 9, 12 is a treated liquid reservoir for collecting purified water overflowing from the overflow weir 11, 13 is a treated water outflow pipe, and 14 is a sedimentation separation A rake is installed at the bottom of the tank 9, 15 is a sludge concentration tank formed at the bottom of the floc growth tank 7, and 16 is a sludge discharge pipe.

In this coagulation-sedimentation device, a mixed liquid of turbid water and a flocculant is supplied to a flocculation loss tank 2 via a turbid water inflow pipe 3, and this mixed liquid is fed by a waste removal blade 5, and the flocculant undergoes a flocculation reaction. A floc is generated, and this floc grows in the floc growth tank 7.

Some of the flocs that flowed into the sedimentation separation tank 9 from the floc growth tank 7 settle and accumulate in the sludge thickening tank 15, and other flocs pass through the rectifier plate 10 and are deposited in the overflow weir 11.
It gradually settles while flowing in the direction of , and is deposited at the bottom of the sedimentation separation tank 9. The sludge accumulated at the bottom of the sedimentation separation tank 9 is scraped into the sludge concentration tank 15 by the rake 14, and the sludge collected in the sludge concentration tank 15 is discharged from the sludge discharge pipe 16 to the outside of the apparatus. On the other hand, the purified water overflows from the overflow weir 11 into the treated liquid reservoir 12 and then flows out of the apparatus from the treated water outflow pipe 13. by the way,
In the attached portable coagulation sedimentation device, it was not possible to install a flow rate measuring device due to its size, so when measuring the flow rate of the purified liquid overflowing from the sedimentation separation tank 9, it was necessary to use the overflow weir. The purified water overflowing from 11 to the treated liquid reservoir 12 is stored in a water tank installed separately from the portable coagulation sedimentation device, and when it overflows to the outside of the water tank from the overflow weir for flow rate measurement provided at the outlet of the water tank. The flow rate of purified water was measured by measuring the height of the water surface in the aquarium with a measuring device.

In this way, in the conventional portable coagulation sedimentation device, the purified water flow rate measurement device is provided separately from the device body, so it is necessary to attach the hem of the coagulation sedimentation device and the flow rate measurement device. In addition, each time the installation location of the coagulation-sedimentation device was changed, the flow rate measuring device had to be removed and fitted, making the installation work extremely troublesome. SUMMARY OF THE INVENTION An object of the present invention is to solve the problems of the prior art described above, and to provide a portable coagulation-sedimentation apparatus that can be easily installed by integrating a purification liquid flow rate measuring section with the apparatus main body.

In order to achieve this object, the present invention provides a coagulation loss tank that mixes a slurry and a coagulant, a floc growth tank that grows flocs from the female slurry of the flocculation tank, and a floc growth tank that grows flocs from the female slurry of the flocculation tank. A sludge concentration tank that deposits flocs that grow and settle in the tank, a sedimentation separation tank that rectifies the liquid from the floc growth tank to separate and settle the sludge containing flocs, and a sludge concentration tank that collects the sludge that has settled in the sedimentation separation tank. A portable coagulation sedimentation system comprising a means for transferring to a tank, and a processing liquid reservoir installed at the upper part of the exit side of the sedimentation separation tank to collect purified water that overflows from the sedimentation separation tank through an overflow weir. In the apparatus, the processing liquid reservoir is connected to a first partition wall having a notch at one end, which directly receives the water flowing from the overflow weir.
The processing liquid reservoir is divided into a processing liquid reservoir, and a second processing liquid reservoir, which is connected to the first processing liquid reservoir through a notch in the partition wall. a flow rate measuring overflow weir installed at a position apart from the notch at one end; a rectifying plate disposed between the flow rate measuring overflow weir and the notch; and a rectifying plate disposed between the flow rate measuring overflow weir and the notch; The present invention is characterized by comprising a measuring device capable of measuring the flow rate according to the height of the liquid level in the second processing liquid reservoir when overflowing.

An embodiment of the present invention will be described below with reference to the drawings. Third
4 is a sectional front view of FIG. 3, and FIG. 5 is a sectional view taken along the line V-V of FIG. 3. In the figures, the same reference numerals as in FIGS. 1 and 2 represent the same or equivalent items. In the portable coagulation sedimentation apparatus according to the present invention, the overflow weir 11
A first processing liquid reservoir 18 that directly receives purified water overflowing from the overflow weir 11 through a partition wall 17 having a notch 17a at one end;
It is divided into a second processing liquid reservoir 19 that communicates with the first processing liquid reservoir 18 via a notch 17a of the partition wall 17. In the second treated liquid reservoir 19, an overflow weir 20 for measuring the flow rate is installed at a position apart from the notch 17a of the partition wall 17, and at the bottom of the outlet side of the overflow weir 20, the treated water flows out. A pipe 21 is connected. Further, in the second processing liquid reservoir 19, a flow rate measuring device 22 having a flow rate scale engraved thereon is installed on the partition wall 17 between the flow rate measuring overflow weir 20 and the notch 17a of the partition wall 17. There is. By visually observing where on the flow rate scale the liquid level in the second processing liquid reservoir 19 is when overflowing from the overflow weir 20 for flow rate measurement, the flow rate at that time can be measured. It has become. Further, 23 is the notch 1 in the second processing liquid swamp 19.
A rectifying plate disposed between the flow rate measuring device 22 and the flow measuring device 22 rectifies the purified water flowing in from the first processing liquid reservoir 18 to prevent the liquid surface from undulating. This allows for accurate flow measurement. Since the coagulation-sedimentation apparatus according to the present invention has the above-described configuration, the purified water that has been purified in the sedimentation separation tank 9 and overflows from the overflow weir 11 flows into the first treated liquid reservoir 18, and then flows into the partition wall 17. It flows into the second processing liquid reservoir 19 through the notch 17a at one end.

The purified water flowing into the second treatment liquid reservoir 19 flows through the rectifier plate 2.
3, the treated water overflows from the overflow weir 20 for flow rate measurement and is discharged to the outside of the apparatus via the treated water outflow pipe 21. and a second one when overflowing from the flow rate measuring overflow weir 20
The height of the purified water level in the treated liquid reservoir 19 and the flow rate measuring device 22
The flow rate of purified water can be measured by visually checking the flow rate scale. As described above, the coagulation-sedimentation apparatus according to the present invention has an extremely simple structure in which the treated liquid reservoir is divided into a first treatment liquid reservoir and a second treatment liquid reservoir. Since the parts are integrated, it is much easier to attach the portable coagulation sedimentation equipment compared to the case where the flow rate measuring device is installed separately as in the case of the adjoining technology, and the main body of the equipment becomes larger. There is an effect that there is no such thing. In the above embodiment, the flow rate measuring device 22 is provided inside the second processing liquid reservoir 19, but it may be provided outside the second processing liquid reservoir 19. For example, as shown in FIGS. 6 and 7, the processing liquid reservoir 1
A transparent pipe 24 is installed at the outside of the processing liquid reservoir 19 to convey it to the bottom of the processing liquid reservoir 19 and to stand up.
A configuration may also be adopted in which a flow rate scale 25 is provided on the outer wall of the processing liquid reservoir near the 25 and the flow rate of the purified water is measured by the liquid level of the transparent pipe 24 and the flow rate scale 25. According to this embodiment, there is an effect that the flow rate can be measured without climbing into the main body of the apparatus.

[Brief explanation of the drawing]

Figure 1 is a plan view showing a conventional portable coagulation sedimentation device;
The figure is a sectional front view of FIG. 1. FIG. 3 is a plan view showing one embodiment of the portable coagulation sedimentation apparatus of the present invention, FIG. 4 is a sectional front view of FIG. 3, and FIG. 5 is a sectional view taken along the line V-V of FIG. 3. FIGS. 6 and 7 show other examples of the flow rate measuring device, with FIG. 6 being a sectional front view and FIG. 7 being a skin-to-skin view of FIG. 6. 1. ．． - Apparatus body, 2... Coagulation loss tank, 7... Floc growth tank, 9... Sedimentation separation tank, 11... Overflow weir, 14. ．．・Rake, 15...
- Sludge concentration tank, 17... Partition wall, 17a... Notch in partition wall, 18... First treatment liquid reservoir, 19...
Second processing liquid reservoir, 20...Overflow weir for flow rate measurement, 22
...Flow rate measuring device. Figure 1 Figure 2 Figure 3 Figure 4 Figure 5 Figure 6 Figure 7

Claims (1)

[Claims] 1. A flocculation stirring tank that stirs the turbid liquid and flocculant, a floc growth tank that grows flocs from the stirring liquid in the flocculation stirring tank, and a sludge thickening tank that deposits the flocs that grow and settle in the floc growth tank. , a settling tank for rectifying the liquid from the floc growth tank to separate and settle the sludge containing flocs; a means for transferring the sludge settled in the settling tank to the sludge thickening tank; In a portable coagulation-sedimentation apparatus, the treatment liquid is installed in a sedimentation separation tank and is equipped with a treatment liquid that collects the purified liquid that overflows from the sedimentation separation tank through an overflow weir. Therefore, the treatment liquid reservoir is divided into a first treatment liquid reservoir that directly receives the purification liquid overflowing from the overflow weir, and a second treatment liquid reservoir that communicates with the first treatment liquid reservoir through a notch in the partition wall. , in the second processing liquid reservoir, a flow rate measuring overflow weir installed at a position apart from the notch at one end of the partition wall, and a flow rate measuring overflow weir installed between the flow rate measuring overflow weir and the notch. and a measuring device capable of measuring the flow rate according to the height of the liquid level in the second processing liquid reservoir when overflowing from the overflow weir for measuring the flow rate. A portable coagulation sedimentation device.