CN111170604A

CN111170604A - Ozone sludge treatment equipment and using method thereof

Info

Publication number: CN111170604A
Application number: CN202010061623.5A
Authority: CN
Inventors: 吴国强
Original assignee: Jiangsu Guoxiang Environmental Protection Technology Co ltd
Current assignee: Jiangsu Guoxiang Environmental Protection Technology Co ltd
Priority date: 2020-01-19
Filing date: 2020-01-19
Publication date: 2020-05-19

Abstract

The invention discloses ozone sludge treatment equipment which comprises an oxidation reactor connected with a sludge tank through a water feeding pump; the ozone generator is communicated with the oxidation reactor and is provided with an automatic regulating valve; the gas-liquid separator is communicated with the ozone generator, is provided with a tail gas emptying port positioned at the upper side, and is guided into the flocculation mud pressing system at the lower side; and an ozone concentration detector respectively arranged on the oxidation reactor and the gas-liquid separator. The invention efficiently reacts sludge and ozone in the oxidation reactor to ensure that the cell walls of bacteria are broken in an explosive way, and then the sludge moisture is reduced by filtering, thereby avoiding the flocculation effect being influenced by excessive sludge moisture.

Description

Ozone sludge treatment equipment and using method thereof

Technical Field

The invention belongs to the technical field of sludge treatment, and particularly relates to ozone sludge treatment equipment and a using method thereof.

Background

The water content of sludge in a sewage plant before filter pressing reaches about 98 percent, and the sludge is flocculated by adding medicaments in a conventional way and then pressed or centrifugally separated after flocculation. The water content in the sludge reaches about 80 percent. The main reason is that the sludge contains a large amount of biochemical bacteria, so that the water in the bacterial cell walls cannot be removed at present, and the high water content brings great influence on the further treatment of the sludge.

Disclosure of Invention

In view of the above, the technical problem to be solved by the present invention is to provide an apparatus for treating sludge with ozone and a method for using the same, wherein the sludge and ozone are efficiently reacted in an oxidation reactor, so that cell walls of bacteria are explosively broken, and then the sludge moisture is reduced by filtering, thereby preventing the flocculation effect from being affected by excessive sludge moisture.

In order to solve the technical problem, the invention discloses ozone treatment sludge equipment which comprises an oxidation reactor connected with a sludge tank through a water feeding pump; the ozone generator is communicated with the oxidation reactor and is provided with an automatic regulating valve; the gas-liquid separator is communicated with the ozone generator, is provided with a tail gas emptying port positioned at the upper side, and is guided into the flocculation mud pressing system at the lower side; and an ozone concentration detector respectively arranged on the oxidation reactor and the gas-liquid separator.

According to an embodiment of the present invention, an air filter is disposed on an upper side of the exhaust vent.

A use method of ozone sludge treatment equipment comprises the following steps:

a, communicating a water feeding pump to a sludge tank and pumping the water feeding pump to an oxidation reactor;

b, opening the ozone generator through an automatic regulating valve, and releasing ozone to the oxidation reactor;

c, reacting ozone and sludge in an oxidation reactor for 30 seconds through an ozone wall breaking process;

and d, pumping the sludge from the upper end of the oxidation reactor through a gas-liquid separator, discharging the tail gas through a tail gas emptying port at the upper side, and directly introducing the sludge into a flocculation sludge pressing system at the lower side.

According to an embodiment of the present invention, the oxidation reactor and the gas-liquid separator are both provided with an ozone concentration detector; wherein the concentration of the ozone concentration detector on the gas-liquid separator is less than 0.01 ppm.

According to an embodiment of the present invention, the oxidation reactor causes the cell wall of the bacteria to be broken by explosion, and then the water content of the sludge is greatly reduced to within 60% by filtration.

Compared with the prior art, the invention can obtain the following technical effects:

through with mud and ozone high-efficient reaction in oxidation reactor, make the cell wall of bacterium become explosion formula broken wall, rethread filtration reduces mud moisture, avoids mud moisture too much, influences the flocculation effect.

Of course, it is not necessary for any one product in which the invention is practiced to achieve all of the above-described technical effects simultaneously.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention and not to limit the invention. In the drawings:

FIG. 1 is a schematic view of an apparatus for treating sludge with ozone according to an embodiment of the present invention.

Reference numerals

The system comprises a sludge tank 10, a water feeding pump 20, an oxidation reactor 30, an ozone generator 40, an automatic regulating valve 50, a gas-liquid separator 60, a tail gas emptying port 70, a flocculation mud pressing system 80 and an ozone concentration detector 90.

Detailed Description

The following detailed description of the embodiments of the present invention will be provided with reference to the accompanying drawings and examples, so that how to implement the embodiments of the present invention by using technical means to solve the technical problems and achieve the technical effects can be fully understood and implemented.

Referring to FIG. 1, FIG. 1 is a schematic view of an apparatus for treating sludge with ozone according to an embodiment of the present invention. As shown in the figure, an ozone sludge treatment device comprises an oxidation reactor 30 connected with a sludge pool 10 through a water feeding pump 20; the ozone generator 40 is communicated with the oxidation reactor 30, and the ozone generator 40 is provided with an automatic regulating valve 50; a gas-liquid separator 60 communicated with the ozone generator 40, wherein the gas-liquid separator 60 is provided with a tail gas emptying port 70 positioned at the upper side, and a flocculation mud pressing system 80 is introduced at the lower side; and an ozone concentration detector 90 provided in the oxidation reactor 30 and the gas-liquid separator 60, respectively.

In an embodiment of the present invention, the raw sludge in the sludge tank 10 is pumped to the oxidation reactor 30 through the upper water pump 20, and the ozone in the ozone generator 40 is opened and closed by the automatic regulating valve 50 and introduced into the oxidation reactor 30 to realize the oxidation reaction, so that the cell walls of bacteria in the sludge are broken in an explosive manner, and the moisture in the inner layer is reduced. After the full reaction is completed, the residual ozone is removed by the tail gas evacuation port 70 of the gas-liquid separator 60, and the reacted sludge is guided into the flocculation sludge pressing system 80 from the lower side, so as to complete the subsequent flocculation work. In addition, in order to facilitate observation and operation, the ozone concentration detector 90 is disposed at the upper ends of the oxidation reactor 30 and the gas-liquid separator 60, so as to facilitate real-time monitoring and realize continuous sewage treatment.

It is worth mentioning that the upper side of the exhaust vent 70 is provided with an air filter to realize exhaust filtration and effectively protect the environment.

The invention also provides a using method of the ozone sludge treatment equipment, which comprises the following steps:

step a, communicating a water feeding pump 20 to a sludge pool 10 and pumping the water to an oxidation reactor 30;

b, opening the ozone generator 40 through the automatic regulating valve 50, and releasing ozone to the oxidation reactor 30;

c, reacting ozone and sludge in an oxidation reactor 30 for 30 seconds through an ozone wall breaking process;

and d, extracting the sludge at the upper end of the oxidation reactor 30 through a gas-liquid separator 60, discharging the tail gas through a tail gas emptying port 70 at the upper side, and directly introducing the sludge into a flocculation sludge pressing system 80 at the lower side.

An ozone concentration detector 90 is provided on both the oxidation reactor 30 and the gas-liquid separator 60; wherein the concentration of the ozone concentration detector 90 on the gas-liquid separator 60 is less than 0.01 ppm.

The oxidation reactor 30 causes the cell wall of the bacteria to be broken in an explosion way, and then the water content of the sludge is greatly reduced to be within 60 percent through filtration.

The invention is characterized in that: 1. ozone broken wall, the efficient oxidation reactor 30 that adopts for the ozone concentration in the sewage will reach certain volume, how combines ozone and sewage, reaches the broken wall purpose. Changes the traditional aeration oxidation mode. The efficient oxidation reactor 30 controls the reaction time to be 30 seconds, shortens the reaction time and realizes continuous automatic sewage treatment.

2. The process adopts automatic control, the concentration of ozone in the sewage is ensured, the treatment effect can be ensured, and the feeding proportion of the sewage and the ozone is automatically controlled through detection.

3. The ozone utilization rate is high, the concentration of the ozone discharged by the tail gas of the high-efficiency oxidation reactor 30 is less than 0.01ppm, the traditional ozone oxidation reaction mode is changed, the concentration of the ozone contained in the tail gas is high, and therefore a tail gas treatment system and air filtration are required to be added; the utilization efficiency of the ozone is improved by 1 time compared with the traditional method; the equipment investment is reduced, and the operation cost is saved.

The foregoing description shows and describes several preferred embodiments of the invention, but as aforementioned, it is to be understood that the invention is not limited to the forms disclosed herein, but is not to be construed as excluding other embodiments and is capable of use in various other combinations, modifications, and environments and is capable of changes within the scope of the inventive concept as expressed herein, commensurate with the above teachings, or the skill or knowledge of the relevant art. And that modifications and variations may be effected by those skilled in the art without departing from the spirit and scope of the invention as defined by the appended claims.

Claims

1. An ozone treatment sludge apparatus, comprising:

the oxidation reactor is connected with a sludge tank through a water feeding pump;

the ozone generator is communicated with the oxidation reactor and is provided with an automatic regulating valve;

the gas-liquid separator is communicated with the ozone generator, is provided with a tail gas emptying port positioned at the upper side, and is guided into the flocculation mud pressing system at the lower side; and

and the ozone concentration detectors are respectively arranged on the oxidation reactor and the gas-liquid separator.

2. The ozone-treated sludge equipment as claimed in claim 1, wherein the exhaust gas evacuation port has an air filter on the upper side.

3. The use method of the ozone-treating sludge equipment according to claim 1, which comprises:

4. The use method of the ozone-treated sludge equipment as claimed in claim 3, wherein the oxidation reactor and the gas-liquid separator are both provided with an ozone concentration detector; wherein the concentration of the ozone concentration detector on the gas-liquid separator is less than 0.01 ppm.

5. The use method of the ozone sludge treatment equipment according to claim 3, wherein the oxidation reactor causes the cell walls of the bacteria to be broken explosively, and then the water content of the sludge is greatly reduced to be within 60% through filtration.