Zero-discharge and zero-pollution solution method for tanning sewage

Abstract

The invention discloses a zero-emission and zero-pollution solution method for tanning sewage, and relates to the technical field of pollution treatment of the tanning sewage. Comprising a water soaking pool, the water soaking pool is connected with a liming and deliming sewage pool, the liming and deliming sewage pool is connected with a pickling and tanning sewage pool, the pickling and tanning sewage pool is connected with a dyeing sewage sedimentation pool, a first water inlet pipe is movably inserted into the water soaking pool, and a water suction pump is arranged in the water soaking pool; a first water outlet pipe is arranged at the output end of the water suction pump in the soaking pool. The key point of the invention is that all sewage in the whole tanning process is collected, treated and recycled in a segmented manner, so that the tanning is not polluted any more, the problems of the traditional and foreign tanning industries are solved, and the tanning industry has zero pollution and zero emission. According to the device, different types of sewage can be subjected to segmented treatment, the situation that the treatment difficulty is increased due to sewage mixing is avoided, and the pollution problem of the sewage can be greatly solved due to the fact that a proper treating agent is matched for segmented treatment of the sewage.

Description

Technical Field

[0001] The invention relates to the technical field of leather wastewater pollution control, in particular to a zero-discharge and zero-pollution solution for leather wastewater. Background Art

[0002] Leather making in my country has a manufacturing history of more than 3,000 years. It can be said to be an ancient yet vibrant industry.

[0003] I divide the entire leather wet processing process into four stages and handle them separately to achieve seamless connection. Summary of the invention

[0004] In view of the shortcomings of the prior art, the present invention provides a zero-discharge and zero-pollution solution for leather-making wastewater, which solves the existing problem that the leather-making wastewater is mixed with pollution and damages the environment.

[0005] To achieve the above objectives, the present invention is implemented through the following technical scheme: a zero-emission and zero-pollution solution for leather-making wastewater, including an immersion tank, a liming and deliming wastewater tank, a pickling and tanning wastewater tank and a dyeing wastewater sedimentation tank, wherein a first water inlet pipe is movably installed in the immersion tank, a water pump is provided in the immersion tank, and a first water outlet pipe is provided at the output end of the water pump in the immersion tank, a second water inlet pipe is movably installed in the liming and deliming wastewater tank, a water pump is provided in the liming and deliming wastewater tank, and a second water outlet pipe is provided at the output end of the water pump in the liming and deliming wastewater tank, a third water inlet pipe is movably installed in the pickling and tanning wastewater tank, a water pump is provided in the pickling and tanning wastewater tank, and a third water outlet pipe is provided at the output end of the water pump in the pickling and tanning wastewater tank, a fourth water inlet pipe is provided at the movable end in the dyeing wastewater sedimentation tank, a water pump is provided in the first water inlet pipe, and a fourth water outlet pipe is provided at the output end of the water pump in the first water inlet pipe.

[0006] Preferably, the soaking tank, the liming and deliming sewage tank, the pickling and tanning sewage tank and the dyeing sewage sedimentation tank are of the same size.

[0007] Preferably, the soaking tank, the liming and deliming sewage tank, the pickling and tanning sewage tank and the dyeing sewage sedimentation tank can all be added with treatment agents to degrade the sewage.

[0008] Preferably, the water pump input ends of the immersion tank, the liming and deliming sewage tank, the pickling and tanning sewage tank and the dyeing sewage sedimentation tank are all provided with a filtering layer.

[0009] Beneficial Effects

[0010] The present invention provides a zero-discharge and zero-pollution solution for leathermaking wastewater. The key point of the present invention is to collect all wastewater in the entire leathermaking process in sections, treat them in sections and recycle them, so that leathermaking is no longer polluted, and the difficult problems of the leathermaking industry at home and abroad are solved, making the leathermaking industry zero-pollution and zero-discharge. The device can treat different types of wastewater in sections to avoid mixing of wastewater and increase the difficulty of treatment. The wastewater is treated in sections and equipped with a suitable treatment agent, which can greatly improve the pollution problem of wastewater. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0012] In the figure: 1. Immersion tank; 2. Liming and deliming sewage tank; 3. Pickling and tanning sewage tank; 4. Dyeing sewage sedimentation tank; 5. First water inlet pipe; 6. First water outlet pipe; 7. Second water inlet pipe; 8. Second water outlet pipe; 9. Third water inlet pipe; 10. Third water outlet pipe; 11. Fourth water inlet pipe; 12. Fourth water outlet pipe. DETAILED DESCRIPTION

[0013] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0014] See also Figure 1 The present invention provides a technical solution: a zero-discharge and zero-pollution solution for leather-making wastewater, comprising an immersion tank 1, a liming and deliming sewage tank 2, a pickling and tanning sewage tank 3 and a dyeing sewage sedimentation tank 4, wherein a first water inlet pipe 5 is movably installed in the immersion tank 1, a water pump is provided in the immersion tank 1, and a first water outlet pipe 6 is provided at the output end of the water pump in the immersion tank 1, a second water inlet pipe 7 is movably installed in the liming and deliming sewage tank 2, a water pump is provided in the liming and deliming sewage tank 2, and a second water outlet pipe 8 is provided at the output end of the water pump in the liming and deliming sewage tank 2, a third water inlet pipe 9 is movably installed in the pickling and tanning sewage tank 3, a water pump is provided in the pickling and tanning sewage tank 3, and a third water outlet pipe 10 is provided at the output end of the water pump in the pickling and tanning sewage tank 3, and a fourth water inlet pipe 11 is movably installed in the dyeing sewage sedimentation tank 4, a water pump is provided in the first water inlet pipe 5, and a fourth water outlet pipe 12 is provided at the output end of the water pump in the first water inlet pipe 5.

[0015] The present embodiment is further configured such that the immersion tank 1 , the liming and deliming sewage tank 2 , the pickling and tanning sewage tank 3 and the dyeing sewage sedimentation tank 4 are of the same size.

[0016] The present embodiment is further configured such that treatment agents can be added to the immersion tank 1, the liming and deliming sewage tank 2, the pickling and tanning sewage tank 3 and the dyeing sewage sedimentation tank 4 to degrade the sewage.

[0017] The present embodiment is further configured such that the water pump input ends of the immersion tank 1, the liming and deliming sewage tank 2, the pickling and tanning sewage tank 3 and the dyeing sewage sedimentation tank 4 are all provided with filtering layers.

[0018] The detailed connection means are well-known in the art. The following mainly introduces the working principle and process. The specific work is as follows.

[0019] Embodiment: The specific process is to treat different leather-making wastewaters in sections. First, the wastewater in the soaking stage is discharged into the soaking tank 1 through the first water inlet pipe 5, and a wastewater treatment agent is added. Because the chemical materials used in each factory are different, the wastewater treatment agent is also different. The pump is turned on to discharge the treated wastewater through the first outlet pipe 6, and the wastewater in the liming and deliming stage is discharged into the liming and deliming wastewater tank 2 through the second water inlet pipe 7, and the wastewater treatment agent is added. The pump is turned on to discharge the treated wastewater through the second outlet pipe 8. The wastewater in the pickling and tanning stage is discharged into the pickling and tanning wastewater tank 3 through the third water inlet pipe 9, and the wastewater treatment agent is added. The pump is turned on to discharge the treated wastewater through the third outlet pipe 10. The wastewater in the dyeing stage is discharged into the dyeing wastewater sedimentation tank 4 through the fourth water inlet pipe 11, and the wastewater treatment agent is added. The pump is turned on to discharge the treated wastewater through the fourth outlet pipe 12.

[0020] The sewage enters the soaking tank 1, the liming and deliming sewage tank 2, the pickling and tanning sewage tank 3 and the dyeing sewage sedimentation tank 4 respectively. By adding suitable treatment agents, it is precipitated for four to five hours to precipitate the dirt and sludge from the sewage liquid. The clarified liquid is pumped away by a pump and can be recycled. The process layer at the input end of the pump filters the dirt. The dirt can be accumulated for one to three months and made into fertilizer through a slag press for use.

[0021] It should be noted that, in this document, relational terms such as first and second, etc. are merely used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations.

Claims

1. A zero-discharge and zero-pollution solution for leather wastewater, comprising a soaking tank (1), a liming and deliming wastewater tank (2), a pickling tanning wastewater tank (3) and a dyeing wastewater sedimentation tank (4), characterized in that: A first water inlet pipe (5) is movably inserted in the immersion tank (1), a water pump is provided in the immersion tank (1), and a first water outlet pipe (6) is provided at the output end of the water pump in the immersion tank (1); a second water inlet pipe (7) is movably inserted in the liming and deliming sewage tank (2), a water pump is provided in the liming and deliming sewage tank (2), and a second water outlet pipe (8) is provided at the output end of the water pump in the liming and deliming sewage tank (2); a third water inlet pipe (9) is movably inserted in the pickling and tanning sewage tank (3), a water pump is provided in the pickling and tanning sewage tank (3), and a third water outlet pipe (10) is provided at the output end of the water pump in the pickling and tanning sewage tank (3); a fourth water inlet pipe (11) is movably inserted in the dyeing sewage sedimentation tank (4), a water pump is provided in the first water inlet pipe (5), and a fourth water outlet pipe (12) is provided at the output end of the water pump in the first water inlet pipe (5).

2. The zero-discharge and zero-pollution solution for leather wastewater according to claim 1 is characterized in that: The soaking tank (1), the liming and deliming sewage tank (2), the pickling and tanning sewage tank (3) and the dyeing sewage sedimentation tank (4) are of the same size.

3. The zero-discharge and zero-pollution solution for leather wastewater according to claim 1 is characterized in that: The soaking tank (1), the liming and deliming sewage tank (2), the pickling and tanning sewage tank (3) and the dyeing sewage sedimentation tank (4) can all be added with treatment agents to degrade sewage.

4. The zero-discharge and zero-pollution solution for leather wastewater according to claim 1 is characterized in that: The water pump input ends of the immersion tank (1), the liming and deliming sewage tank (2), the pickling and tanning sewage tank (3) and the dyeing sewage sedimentation tank (4) are all provided with filtering layers.

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