Landscape water dialysis purification system

Abstract

The invention relates to the technical field of water pollution treatment, in particular to a landscape water dialysis purification system. The system comprises a water intake pumping station, a water distribution well and a cloth filter tank, water taken by the water intake pumping station is conveyed into the water distribution well through a water inlet pipe of the water distribution well, the water inlet pipe of the water distribution well is connected with PAC and PAM pipelines, sewage is distributed into the cloth filter after being subjected to first flocculation and sedimentation in the water distribution well, PAM is added into a water outlet pipe of the water distribution well, pollutants in water are further subjected to flocculation and sedimentation in a flocculation and sedimentation section of the cloth filter, and the pollutants in the water are subjected to secondary flocculation and sedimentation. The sewage is filtered by the fiber rotary disc filter after two times of flocculating settling, and the filtered clear water can be discharged, so that the sewage is treated, the load of the fiber rotary disc filter is effectively reduced in the process, and the efficient treatment process of the sewage is ensured; sludge generated in the operation process of the system is collected and then filtered, so that the sludge produced by the system is treated.

Description

Technical Field

[0001] The invention relates to the technical field of water pollution control, and in particular to a landscape water dialysis purification system. Background Art

[0002] Landscape water usually refers to water bodies used for visual appreciation, which are usually divided into two categories: one is natural waterscape, such as natural lakes and rivers; the other is artificial waterscape, such as fountains, artificial lakes, small urban rivers, etc.; for artificial waterscapes, since they are all open-air surface water, the water flow capacity is limited, the self-purification ability is very low, and it is very easy to be polluted.

[0003] Therefore, when landscape water is polluted, artificial treatment is required; commonly used methods include physical methods, biological methods and ecological methods; among them, the physical method uses a bypass treatment method to extract the polluted landscape water, treat it and return it to the water body. The process is simple and efficient, but it also brings corresponding large investment costs and operating expenses; the core of the physical method treatment is the filter cloth filter. During the operation of the system, the filter cloth filter needs to be backwashed when the filtration efficiency decreases, which will reduce the treatment efficiency; when it is necessary to ensure the treatment efficiency, it is often necessary to set up multiple filter cloth filters in parallel, which on the one hand increases the land area and equipment investment costs, and on the other hand also significantly increases the operating costs.

[0004] Therefore, a landscape water dialysis purification treatment system that can effectively reduce system investment cost and operating cost while ensuring treatment efficiency is a problem that needs to be solved. Summary of the invention

[0005] The purpose of the present invention is to provide a landscape water dialysis purification system to solve the problem that the existing bypass purification treatment system needs frequent backwashing of the fiber filter cloth turntable, which affects the filtration efficiency and increases the investment cost and operating cost when the filtration efficiency needs to be guaranteed.

[0006] To achieve the above-mentioned purpose, the present invention adopts the following technical scheme: a landscape water dialysis purification system, including a water intake pump station, the water intake pump station is connected to a water distribution well, and the water distribution well is connected to a filter cloth filter tank; the water inlet pipe of the water distribution well is respectively connected to a PAC addition pipeline and a PAM addition pipeline; the water outlet pipe of the water distribution well is connected to the water inlet of the filter cloth filter tank, and the water outlet pipe of the water distribution well is connected to the PAM addition pipeline; the filter cloth filter tank includes a flocculation sedimentation section and a turntable filter section arranged in sequence along the water flow direction, and a staggered baffle is arranged in the flocculation sedimentation section, the baffle is in a folded plate shape, and a water flow channel in which narrow channels and wide channels are alternately connected is formed between adjacent baffles, and a fiber turntable filter is arranged in the turntable filter section.

[0007] Furthermore, the water inlet pipe of the water distribution well is connected to the top of the water distribution well, and a partition wall is arranged behind the water inlet pipe of the water distribution well; an overflow weir is arranged in the water distribution well, a stirring and mixing zone is formed between the partition wall and the overflow weir, and the bottom of the partition wall is connected to the stirring and mixing zone; the water outflow from the overflow weir is distributed to the filter cloth filter tank through the water outlet pipe of the water distribution well.

[0008] Furthermore, a water distribution well mud discharge pipe is provided at the bottom of the water distribution well, and the water distribution well mud discharge pipe is connected to the stirring and mixing zone; the flocculation and sedimentation section is connected to the flocculation and sedimentation section mud discharge pipe at the bottom of each water flow channel; the mud discharge pipe of the fiber rotary filter is connected to the rotary filter section mud discharge pipe; the water distribution well mud discharge pipe, the flocculation and sedimentation section mud discharge pipe and the rotary filter section mud discharge pipe are all connected to the regulating tank.

[0009] Furthermore, the regulating tank is connected to the concentration tank and the balancing tank in sequence, and the balancing tank is transported to the sludge dehydration area.

[0010] Furthermore, it also includes a reagent area, in which a PAC storage tank and a PAM storage tank are arranged, the PAC storage tank is connected to the water inlet pipe of the water distribution well, and the PAM storage tank is respectively connected to the water inlet pipe of the water distribution well, the water outlet pipe of the water distribution well and the sludge dehydration area.

[0011] The beneficial effects of the present invention are as follows: the present invention can realize bypass treatment of polluted water bodies, and can effectively reduce the amount of pollutants in the water body through two flocculation and sedimentation processes during the treatment process, so that when filtering through the fiber rotary filter, the workload of the fiber rotary filter can be effectively reduced, and frequent backwashing of the fiber rotary filter can be avoided, thereby effectively ensuring the filtration efficiency, so that a large amount of water can be treated in a shorter time, avoiding the land occupation, equipment and operating costs caused by adding more equipment, and being more economical and efficient. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of the system flow of the present invention;

[0013] Figure 2 It is a schematic diagram of the water distribution well structure of the present invention;

[0014] Figure 3 It is a schematic diagram of the structure of the filter cloth filter tank of the present invention;

[0015] Figure 4 The present invention Figure 3 A partial enlarged schematic diagram of part A.

[0016] The names corresponding to the marks in the figure are:

[0017] 1. Water intake pump station; 2. Water distribution well; 21. Water distribution well inlet pipe; 22. Partition wall; 23. Water distribution well agitator; 24. Overflow weir; 25. Water distribution well outlet pipe; 26. Water distribution well sludge pipe; 3. Filter cloth filter tank; 31. Flocculation and sedimentation section; 311. Baffle; 312. Narrow channel; 313. Wide channel; 32. Rotary filter section; 33. Filter cloth filter tank outlet pipe; 34. Flocculation and sedimentation section sludge pipe; 341. Sludge main pipe; 342. Sludge branch pipe; 35. Rotary filter section sludge pipe; 4. Regulating tank; 5. Concentration tank; 6. Balance tank; 7. Dehydration area; 8. Chemical area. DETAILED DESCRIPTION

[0018] The technical solution of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0019] like Figure 1 As shown, the system of the present invention includes a water intake pump station 1, which extracts polluted water and transports it to a water distribution well 2, and PAC and PAM are added during the transportation process; after stirring, flocculation and sedimentation in the water distribution well 2, the supernatant is distributed to the filter cloth filter tank 3 through overflow, and a plurality of filter cloth filter tanks 3 are provided. Water can be distributed to each filter cloth filter tank 3 through the water distribution well 2, and PAM is added during the water intake of the filter cloth filter tank 3.

[0020] The filter cloth filter tank 3 includes a front flocculation and sedimentation section 31 and a subsequent rotary filter section 32. In the flocculation and sedimentation section 31, staggered baffles 311 are used to allow pollutants in the water body to further flocculate and settle, and then go to the fiber rotary filter in the rotary filter section 32 for filtration, which can reduce the operating load of the filter, and the filtered clean water can be discharged into the water body.

[0021] In the process of water pollution control, sludge is generated. The sludge is generated in the flocculation and sedimentation in the water distribution well 2, the flocculation and sedimentation section 31 of the filter cloth filter 3, and the rotary filter section 32. In the system of the present invention, the generated sludge is sucked into the sludge regulating tank 4, the shock load is buffered by the regulating tank 4, and then it is transported to the concentration tank 5 through the regulating tank 4, and further concentrated in the concentration tank 5. The concentrated sludge is transported to the sludge balancing tank 6, stirred and homogenized in the sludge balancing tank 6, and the sludge with a certain concentration range and flow rate is transported to the dehydration area 7 for dehydration.

[0022] A dehydration device is provided in the dehydration area 7. After the sludge is added with PAM, it is dehydrated in the dehydration device, and the dehydrated mud cake is transported out. In the system of the present invention, a reagent area 8 is also provided. A PAC storage tank and a PAM storage tank are provided in the reagent area 8 for the storage and transportation of PAC and PAM.

[0023] like Figure 1-4As shown, a water distribution well inlet pipe 21 is arranged above one side of the water distribution well 2, a partition wall 22 and an overflow weir 24 are arranged in the water distribution well 2, a stirring and mixing zone is formed between the partition wall 22 and the overflow weir 24, the bottom of the partition wall 22 is connected with the stirring and mixing zone, a water distribution well agitator 23 is arranged in the stirring and mixing zone, and the clear liquid above the stirring and mixing zone is discharged through the overflow weir 24 through the water distribution well outlet pipe 25; a water distribution well mud discharge pipe 26 is arranged at the bottom of the water distribution well 2, and the water distribution well mud discharge pipe 26 is connected with the stirring and mixing zone.

[0024] The water distribution well outlet pipe 25 is connected to multiple filter cloth filter tanks 3, and the water distribution well outlet pipe 25 is connected to the PAM addition pipeline. A flocculation and sedimentation section 31 and a rotary filter section 32 are provided in each filter cloth filter tank 3. The flocculation and sedimentation section 31 is provided with staggered baffles 311. The baffles 311 make the water entering the filter cloth filter tank 3 flow in an upward and downward baffled manner. Each baffle 311 is arranged in a folded plate type, and a water flow channel is formed between two adjacent baffles 311. The water flow channel forms alternately connected narrow channels 312 and wide channels 313 due to the baffles 311; the bottom of each water flow channel is connected to the flocculation and sedimentation section mud discharge pipe 34, and the flocculation and sedimentation section mud discharge pipe 34 includes a mud discharge main pipe 341 and a mud discharge branch pipe 342. The mud discharge branch pipe 342 is connected to the bottom of each water flow channel, and the mud discharge main pipe 341 is connected to the regulating tank 4.

[0025] A fiber rotary filter is arranged in the rotary filter section 32 , the effluent of the fiber rotary filter is connected to the filter cloth filter tank effluent pipe 33 , the mud discharge pipe of the fiber rotary filter is connected to the rotary filter section mud discharge pipe 35 , and the rotary filter section mud discharge pipe 35 is connected to the regulating tank 4 .

[0026] The principle of the present invention is:

[0027] The present invention purifies the polluted landscape water through a bypass. During the process, the polluted water is extracted by a water intake pump station 1 and then transported to a water distribution well 2. PAC and PAM are added during the transportation process. Under the action of coagulants and flocculants, the sewage is mixed, flocculated and settled in the water distribution well 2, and the supernatant is transported to a filter cloth filter tank 3.

[0028] PAM is added during the process of conveying the supernatant to the filter cloth filter tank 3, so that the impurities in the supernatant are further flocculated and settled in the filter cloth filter tank 3. During the process, the flocculation and sedimentation section 31 is set to lengthen the flow channel of the water flow, which is conducive to the flocculation of pollutants. At the same time, due to the alternating connecting channels of the narrow channel 312 and the wide channel 313 formed by the baffle plate 311, the flow rate of the water flow changes alternately between fast and slow, thereby effectively promoting the mixing of sewage and flocculant, and also facilitating the sedimentation, thereby achieving further sedimentation of pollutants in the water body.

[0029] The pollutants in the sewage passing through the flocculation and sedimentation section 31 are largely removed, which can effectively reduce the workload of the rear-end fiber rotary filter and effectively ensure the speed of the filtration treatment, thereby achieving more efficient treatment of the polluted water body and completing the treatment operation at lower equipment and operating costs.

[0030] Sludge is generated during the treatment process. The sludge generated by the water distribution well 2, the flocculation sedimentation section 31 and the backwashing of the fiber rotary filter is transported to the regulating tank 4, and then passes through the concentration tank 5, the balancing tank 6 and dehydration to achieve the treatment of the sludge generated in the system. Among them, the regulating tank 4, the concentration tank 5, the balancing tank 5, the dehydration equipment, etc. are all existing mature structures and equipment, and will not be repeated.

[0031] The present invention is not limited to the above-mentioned optimal implementation mode. Anyone can derive other various forms of products under the inspiration of the present invention. However, no matter what changes are made in the shape or structure, all technical solutions that are the same or similar to those of the present application fall within the protection scope of the present invention.

Claims

1. Landscape water dialysis purification system, characterized by: It includes a water intake pump station, which is connected to a water distribution well, which is connected to a filter cloth filter tank; the water inlet pipe of the water distribution well is respectively connected to a PAC addition pipe and a PAM addition pipe; the water outlet pipe of the water distribution well is connected to the water inlet of the filter cloth filter tank, and the water outlet pipe of the water distribution well is connected to the PAM addition pipe; the filter cloth filter tank includes a flocculation sedimentation section and a turntable filter section arranged in sequence along the water flow direction, and the flocculation sedimentation section is provided with staggered baffles, the baffles are in a folded plate shape, and a water flow channel in which narrow channels and wide channels are alternately connected is formed between adjacent baffles, and a fiber turntable filter is arranged in the turntable filter section.

2. The landscape water dialysis purification system according to claim 1, characterized in that: The water inlet pipe of the water distribution well is connected to the top of the water distribution well, and a partition wall is arranged behind the water inlet pipe of the water distribution well; an overflow weir is arranged in the water distribution well, a stirring and mixing zone is formed between the partition wall and the overflow weir, and the bottom of the partition wall is connected to the stirring and mixing zone; the water outflow from the overflow weir is distributed to the filter cloth filter tank through the water outlet pipe of the water distribution well.

3. The landscape water dialysis purification system according to claim 2, characterized in that: A water distribution well mud discharge pipe is arranged at the bottom of the water distribution well, and the water distribution well mud discharge pipe is connected with the stirring and mixing zone; the flocculation and sedimentation section is connected with the flocculation and sedimentation section mud discharge pipe at the bottom of each water flow channel; the mud discharge pipe of the fiber rotary filter is connected with the rotary filter section mud discharge pipe; the water distribution well mud discharge pipe, the flocculation and sedimentation section mud discharge pipe and the rotary filter section mud discharge pipe are all connected with the regulating tank.

4. The landscape water dialysis purification system according to claim 3, characterized in that: The regulating tank is connected with the concentration tank and the balancing tank in sequence, and the balancing tank is transported to the sludge dewatering area.

5. The landscape water dialysis purification system according to claim 4, characterized in that: It also includes a reagent area, in which a PAC storage tank and a PAM storage tank are arranged. The PAC storage tank is connected to the water inlet pipe of the water distribution well, and the PAM storage tank is respectively connected to the water inlet pipe of the water distribution well, the water outlet pipe of the water distribution well and the sludge dehydration area.

Images