CN214735232U

CN214735232U - Printing and dyeing wastewater treatment system

Info

Publication number: CN214735232U
Application number: CN202120788724.2U
Authority: CN
Inventors: 宋凌永; 张阿弟; 宋凌愈; 靳培炜; 张清美; 宋凌铨
Original assignee: Changzhou Weile Printing And Dyeing Co ltd
Current assignee: Changzhou Weile Printing And Dyeing Co ltd
Priority date: 2021-04-19
Filing date: 2021-04-19
Publication date: 2021-11-16
Anticipated expiration: 2031-04-19

Abstract

The utility model discloses a printing and dyeing wastewater treatment system, which comprises a wastewater pool, a solid filtering device, a chemical reaction pool and a biological decomposition pool which are connected in sequence, wherein the lower part of an ascending facility is connected with the upper part of a descending facility; the solid filtering device comprises an upper cylinder and a lower cylinder; the upper cylinder body is screwed in and arranged on the upper part of the lower cylinder body, the upper part of the upper cylinder body is provided with a water inlet pipe, and the lower part of the lower cylinder body is provided with a water outlet pipe; barrel and last barrel joint are by supreme filter, the filter screen of being equipped with down, the utility model discloses filter printing and dyeing waste water through solid filter equipment earlier and remove solid debris, carry out chemistry, biological treatment again, the precipitate that its reaction generated is pumped by the scarfing cinder mouth, and water after the purification treatment is derived by the drain pipe of biological decomposition pond one side, and its purifying effect is good, and the running cost is low, and the emission can reach national standard.

Description

Printing and dyeing wastewater treatment system

Technical Field

The utility model belongs to the printing and dyeing processing field especially relates to a printing and dyeing wastewater treatment system.

Background

Waste water discharged from cotton, hemp, chemical fiber and blended products thereof, and silk, printing and dyeing, wool dyeing and finishing, silk factories and the like. The types and the processing techniques of the fibers are different, and the water quantity and the water quality of the printing and dyeing wastewater are also different. Wherein the amount of the wastewater in the printing and dyeing mill is large, 100-200 t of water is consumed for every 1t of textile processed by printing and dyeing, and 80-90% of the wastewater is discharged. The printing and dyeing wastewater has the characteristics of large water quantity, high organic pollutant content, large alkalinity, large water quality change and the like, belongs to one of industrial wastewater difficult to treat, and contains dye, slurry, auxiliary agent, oil agent, acid and alkali, fiber impurities, sand substances, inorganic salt and the like.

The printing and dyeing wastewater has complex and large change of water quality, low BOD5/COD value and high chroma, and belongs to biodegradable but difficultly biodegradable sewage. The method has a large proportion of industrial pollution, and although a batch of practical technologies are obtained after years of efforts from the current situation of the wastewater treatment technology in the printing and dyeing industry in China, a lot of problems are solved, the method has no substantial breakthrough on the whole, and the difficulty of wastewater treatment is increased particularly due to the existence of unreasonable factors such as product structure and factory layout.

Furthermore, with the development of the printing and dyeing industry, a large number of chemical fiber products appear, and the application of new chemical pulp, dye and finishing agent and the like changes the components of printing and dyeing wastewater, increases the treatment difficulty, and the COD and the chromaticity of effluent water of a simple aerobic biological treatment method are difficult to reach the standard, and the organic compounds which are difficult to degrade by microorganisms, difficult to remove by the conventional biological treatment process, and difficult to degrade by the natural self-purification effect after being discharged into the natural environment.

Disclosure of Invention

The utility model discloses an above-mentioned problem that the current device exists of solution has designed a printing and dyeing wastewater treatment system, and it includes: the system comprises a wastewater pool, a solid filtering device, a chemical reaction pool and a biological decomposition pool which are connected in sequence, wherein the lower part of an ascending facility is connected with the upper part of a descending facility; the solid filtering device comprises an upper cylinder and a lower cylinder; the upper cylinder body is screwed in and arranged on the upper part of the lower cylinder body, the upper part of the upper cylinder body is provided with a water inlet pipe, and the lower part of the lower cylinder body is provided with a water outlet pipe; and a filter plate and a filter screen are arranged at the joint of the lower barrel and the upper barrel from bottom to top.

Preferably, the chemical reaction tank comprises one or more of a hydrolysis acidification tank, an ozone contact tank and an aeration tank.

Preferably, the inner wall of the biological decomposition tank is provided with a pH detector, the bottom of the biological decomposition tank is provided with a plurality of sludge hoppers, and one side of each sludge hopper is provided with a slag removal port.

Preferably, the filter screen comprises a gasket and filter cloth arranged on the inner side of the gasket; the gasket is made of rubber; the upper part of the lower cylinder is provided with an inner screw hole, the lower part of the upper cylinder is provided with an outer screw hole, and the filter plate and the filter screen are arranged below the inner screw hole and are screwed and pressed by the upper cylinder.

Preferably, the lower part of the internal thread opening is provided with a buffer pad, and the filter plate is made of ceramic.

The utility model discloses filter printing and dyeing waste water through solid filter equipment earlier and remove solid debris, carry out chemistry, biological treatment again, the precipitate that its reaction generated is pumped by the scarfing cinder mouth, and water after the purification treatment is derived by the drain pipe of biological decomposition pond one side, and its purifying effect is good, and the running cost is low, and the emission can reach national standard.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a schematic structural view of a solid filtering device.

Fig. 3 is a top view of the filter screen.

FIG. 4 is a top view of the filter plate.

In figure 1, a wastewater tank; 2. a solids filtration device; 3. a chemical reaction tank; 4. a biological decomposition tank; 21. An upper cylinder body; 22. a lower cylinder body; 23. a filter plate; 24. a filter screen; 25. a water inlet pipe; 26. a water outlet pipe; 27. a cushion pad; 41. a sludge hopper; 42. a slag removal port; 241. a gasket; 242. and (5) filtering the cloth.

Detailed Description

Example 1

As shown in FIGS. 1 to 3, the printing and dyeing wastewater treatment system according to an embodiment of the present invention comprises: the system comprises a wastewater tank 1, a solid filtering device 2, a chemical reaction tank 3 and a biological decomposition tank 4 which are connected in sequence, wherein the lower part of an ascending facility is connected with the upper part of a descending facility; the solid filtering device 2 comprises an upper cylinder 21 and a lower cylinder 22; the upper cylinder 21 is screwed in and mounted on the upper part of the lower cylinder 22, the upper part of the upper cylinder 21 is provided with a water inlet pipe 25, and the lower part of the lower cylinder 22 is provided with a water outlet pipe 26; a filter plate 23 and a filter screen 24 are arranged at the joint of the lower cylinder 22 and the upper cylinder 21 from bottom to top; a gate valve for controlling water flow is arranged between the connecting pipelines.

Preferably, the chemical reaction tank 3 comprises a hydrolysis acidification tank and an aeration tank.

Preferably, the inner wall of the biological decomposition tank 4 is provided with a pH detector, the bottom of the biological decomposition tank is provided with a plurality of sludge hoppers 41, and one side of each sludge hopper 41 is provided with a slag removal port 42.

Preferably, the filter screen 24 includes a gasket 241 and a filter cloth 242 disposed inside the gasket 241; the gasket 241 is made of rubber; the upper part of the lower cylinder 22 is provided with an inner screw hole, the lower part of the upper cylinder 21 is provided with an outer screw hole, and the filter plate 23 and the filter screen 24 are arranged below the inner screw hole and are screwed and pressed by the upper cylinder 21.

Preferably, a buffer pad 27 is arranged at the lower part of the internal thread opening, and the filter plate 23 is made of ceramic.

Example 2

Preferably, the chemical reaction tank 3 comprises a hydrolysis acidification tank, an ozone contact tank and an aeration tank.

Preferably, the connecting pipeline used by the solid filtering device 2 is a metal hose.

The utility model discloses a design point is 1, will set up solid filter equipment in wastewater treatment system, the container that realizes filtering capability divides into upper and lower two parts to locate both junctions with the filtering capability subassembly, be convenient for change, the filtering capability subassembly uses the filter cloth to filter out the bold solid, the ceramic filter filters out other solids and microorganism, both pull down the after-cleaning all more convenient, but reuse, reduce cost, the filter cloth also can alleviate the filterable pressure of filter. 2. After the biological decomposition treatment, the generated precipitate falls into a sludge hopper and is pumped out and separated by a slag removing port. 3. Ascending facility sub-unit connection descending facility's upper portion mean wastewater disposal basin sub-unit connection solid filter equipment upper portion, solid filter equipment sub-unit connection chemical reaction pond upper portion, chemical reaction pond sub-unit connection biological decomposition pond upper portion, discharge or carry out recycle and realize through the outlet of biological decomposition pond one side, do not additionally consume the electric energy at the flow in-process.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a printing and dyeing wastewater treatment system which characterized in that: the device comprises a wastewater pool, a solid filtering device, a chemical reaction pool and a biological decomposition pool which are connected in sequence, wherein the lower part of an ascending facility is connected with the upper part of a descending facility; the solid filtering device comprises an upper cylinder and a lower cylinder; the upper cylinder body is screwed in and arranged on the upper part of the lower cylinder body, the upper part of the upper cylinder body is provided with a water inlet pipe, and the lower part of the lower cylinder body is provided with a water outlet pipe; and a filter plate and a filter screen are arranged at the joint of the lower barrel and the upper barrel from bottom to top.

2. The printing and dyeing wastewater treatment system according to claim 1, characterized in that: the chemical reaction tank comprises one or more of a hydrolysis acidification tank, an ozone contact tank and an aeration tank.

3. The printing and dyeing wastewater treatment system according to claim 2, characterized in that: the inner wall of the biological decomposition tank is provided with a pH detector, the bottom of the biological decomposition tank is provided with a plurality of sludge hoppers, and one side of each sludge hopper is provided with a slag removal port.

4. The printing and dyeing wastewater treatment system according to claim 3, characterized in that: the filter screen comprises a gasket and filter cloth arranged on the inner side of the gasket; the gasket is made of rubber; the upper part of the lower cylinder is provided with an inner screw hole, the lower part of the upper cylinder is provided with an outer screw hole, and the filter plate and the filter screen are arranged below the inner screw hole and are screwed and pressed by the upper cylinder.

5. The printing and dyeing wastewater treatment system according to claim 4, characterized in that: the lower part of the internal thread opening is provided with a buffer pad, and the filter plate is made of ceramic.