JPH0494728A - Non-clogging aeration sludge reducing device - Google Patents

Abstract

PURPOSE:To make a gas efficiently absorbed into a fluid by providing a stationary fluid mixer on the delivery side of a pump and a gas force-feeding port on this side of the mixer and designing the device so that a liq. to be absorbed or sludge is simultaneously introduced. CONSTITUTION:A stationary fluid mixer 1 is provided on the delivery side of a pump 2, and a gas force-feeding port is furnished on this side of the mixer. Namely, the sludge or sewage and clean water supplied from the pump 2 are joined with a gas from a compressor 3 on this side of the mixer 1, and simultaneously introduced into the mixer 1. The gas and fluid are allowed to collide with the internal protrusion, dispersed and mixed, and the gas is efficiently absorbed into the fluid in the mixer 1. Consequently, when sewage or clean water is supplied by the pump 2 and air is force-fed from the compressor 3, the air contains about 8.84ppm saturated steam at the moment when discharged from this device if the water temp. is 20 deg.C, and the sludge is activated in the case of sludge.

Description

[Detailed Description of the Invention] [Field of Industrial Application] This device relates to a device that instantly absorbs oxygen and other gases regardless of whether the fluid is occlusive or non-occlusive, such as sludge, sewage, fresh water, or seawater. It is.

[Problems to be Solved by the Invention] Conventionally well-known static mixers such as Kenix Mixer, Sulzer Mixer, Honeycomb Mini 1-Ser, Imstat Mixer 11, S, G, mixer, etc. If the internal structure is complicated or the pipes intersect at the center, filamentous substances or sludge may enter the pipes, clogging may occur and maintenance becomes labor-intensive.

In addition, even in the case of a growth spool produced by a chemical reaction, the problem of clogging always occurs, resulting in the equipment being shut down and hardly used. However, in the present invention, with the advent of this stationary mixing device for fluids, the problem of blockage has also been solved. In terms of performance, it is inferior to the Honeycomb Minizer and Imstat Mixer, but since continuous operation without occlusion is possible, it may be considered that the performance improves with operating time. This device has been experimentally operated and has been in continuous operation for two years without any stoppages due to blockage.

Also, put the excess sludge into the 30001 container and exit the device.
-4-Nilesion was performed. There was no shutdown due to equipment blockage, and 5V3099 became 48, confirming a reduction in sludge.

A comparison of the performance of aeration using a diffuser tube and a blower and this device shows that for sewage with zero dissolved oxygen, aeration using a diffuser tube and a blower reduces dissolved oxygen to 21% in 60 minutes.
) l) This device became supersaturated in 15 minutes compared to m).

The amount of water is 3000 N, and the waste water of B, O, and D IQQ ppm is used.

We calculated the power required to reduce dissolved oxygen lppm through various experiments, and found that it was 0.088KW7'ppm for the blower and diffuser pipe (0.5KW), and 0.03KW for this device.
3KW, 'ppm', which is approximately (10% energy saving).

Oxygen absorption efficiency after one pass through the device was approximately 23.6%, which was approximately 100 times the difference in performance compared to 0.2% for the blower and air diffuser. Originally, static mixers are very efficient in dissolving oxygen in raw water for sewage treatment, but they are not used often because of clogging. However, with the advent of this device, water treatment, sludge treatment, etc. are expected to become more extensive (and change).

"Example] An example of the present invention is shown.

The present invention is composed of the following components shown in Figure 1: 1) Bonzo 2) Stationary mixing device for fluids 2) Compressor 2) Pressure regulating valve 2) Valve 2) Reverse 142 valves.

The sludge, sewage, and clean water sent from (2) are combined with the gas pumped from (2) before (2), and flow into (2) at the same time.

Inside (2), gas and fluid are repeatedly dispersed and mixed each time they collide with internal protrusions, and the gas is efficiently absorbed by the fluid.

Considering this, if the material being fed is sewage or fresh water, and air is forced in from If the water temperature is 8.841) I) Ill, it will be discharged.

If it is sludge, dissolved oxygen is efficient (dissolved oxygen is absorbed by sludge organisms and the moment it is discharged, it does not become higher than in sewage or fresh water, but it can increase the activation of sludge.

Furthermore, if only sludge is placed in a storage tank and leached by this device, the sludge will promote self-extinguishment and its volume will decrease.

It can be used for sludge and promotes autolysis by absorbing oxygen from the air.

This is a major feature of this non-occlusion aeration sludge reduction device.

[Brief explanation of the drawing]

■・・・Stationary mixing device for fluids■・・・Pump (for fresh water or sludge)■・・・
・・・・・・ Compressor = (Can also be used with cylinders)■
・・・・ Pressure adjustment valve ■・ ・・・・ Valve ■・・・・・・・・・・ Check valve ■・・・・・・・ Equipment mount

Claims (1)

[Claims] 1) This device is a device applied to gas absorption by further improving the characteristics of the stationary fluid mixing device filed in Japanese Patent Application No. 61-294592, filed on December 10, 1986. . 2) This device is designed to have a stationary mixing device for fluids on the discharge side of the pump, and a gas pressure inlet in front of it, so that it enters at the same time as the liquid or sludge to be absorbed.