CN217202314U - A kind of ultrafiltration membrane cleaning waste liquid recovery and treatment system - Google Patents
A kind of ultrafiltration membrane cleaning waste liquid recovery and treatment system Download PDFInfo
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- CN217202314U CN217202314U CN202123318272.0U CN202123318272U CN217202314U CN 217202314 U CN217202314 U CN 217202314U CN 202123318272 U CN202123318272 U CN 202123318272U CN 217202314 U CN217202314 U CN 217202314U
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- 238000004140 cleaning Methods 0.000 title claims abstract description 82
- 239000007788 liquid Substances 0.000 title claims abstract description 75
- 239000002699 waste material Substances 0.000 title claims abstract description 26
- 239000012528 membrane Substances 0.000 title claims abstract description 18
- 238000000108 ultra-filtration Methods 0.000 title claims abstract description 16
- 238000011084 recovery Methods 0.000 title claims 4
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims abstract description 72
- 238000005189 flocculation Methods 0.000 claims abstract description 20
- 230000016615 flocculation Effects 0.000 claims abstract description 20
- 238000011095 buffer preparation Methods 0.000 claims abstract description 19
- 239000002253 acid Substances 0.000 claims abstract description 10
- 238000012545 processing Methods 0.000 claims abstract description 8
- 238000006386 neutralization reaction Methods 0.000 claims description 14
- 230000003311 flocculating effect Effects 0.000 claims description 6
- 238000003756 stirring Methods 0.000 claims description 4
- 238000002360 preparation method Methods 0.000 claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 3
- 230000003139 buffering effect Effects 0.000 claims 2
- 239000008394 flocculating agent Substances 0.000 claims 1
- 238000005406 washing Methods 0.000 claims 1
- 230000003472 neutralizing effect Effects 0.000 abstract description 10
- 238000004064 recycling Methods 0.000 abstract description 8
- 239000012530 fluid Substances 0.000 abstract 2
- 238000000034 method Methods 0.000 description 6
- 239000012459 cleaning agent Substances 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000011001 backwashing Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000011086 high cleaning Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000004062 sedimentation Methods 0.000 description 1
- 238000002791 soaking Methods 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
- 239000008399 tap water Substances 0.000 description 1
- 235000020679 tap water Nutrition 0.000 description 1
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Abstract
本实用新型公开一种超滤膜清洗废液回收处理系统，清洗槽的清洗液进液口通过清洗液管道与氢氧化钠缓冲配制罐的出液口相连，氢氧化钠缓冲配制罐的出液口上设置有过滤网，清洗槽的槽底设置有清洗废液排放管道，该清洗废液排放管道分出两个支管分别与中和管式混合器以及清洗液过滤器相连，清洗液过滤器的出口与氢氧化钠缓冲配制罐的进口相连，中和管式混合器上设置有酸液加液管，中和管式混合器的出口管线上设置有pH传感器，中和管式混合器的出口管线与絮凝管式混合器相连，絮凝管式混合器上设置有絮凝剂加入管线，絮凝管式混合器的出口与絮凝过滤器相连。尽可能的回收利用清洗液，实现自动化处理，占地面积小，处理液能达到排放标准。
The utility model discloses an ultrafiltration membrane cleaning waste liquid recycling and processing system. A cleaning liquid inlet of a cleaning tank is connected with a liquid outlet of a sodium hydroxide buffer preparation tank through a cleaning liquid pipeline, and the liquid outlet of the sodium hydroxide buffer preparation tank is connected. A filter screen is arranged on the mouth, and a cleaning waste liquid discharge pipe is arranged at the bottom of the cleaning tank. The cleaning waste liquid discharge pipe is divided into two branch pipes which are respectively connected with the neutralizing tube mixer and the cleaning liquid filter. The outlet is connected to the inlet of the sodium hydroxide buffer preparation tank, the neutralizing tubular mixer is provided with an acid liquid addition pipe, the outlet pipeline of the neutralizing tubular mixer is provided with a pH sensor, and the outlet of the neutralizing tubular mixer The pipeline is connected with the flocculation tubular mixer, the flocculation tubular mixer is provided with a flocculant adding pipeline, and the outlet of the flocculation tubular mixer is connected with the flocculation filter. Recycle the cleaning fluid as much as possible to realize automatic treatment, occupy a small area, and the treatment fluid can meet the discharge standard.
Description
技术领域technical field
本实用新型涉及水处理领域，特别涉及一种超滤膜清洗废液回收处理系统。The utility model relates to the field of water treatment, in particular to an ultrafiltration membrane cleaning waste liquid recycling and processing system.
背景技术Background technique
超滤膜被广泛应用于自来水的处理中，该膜由于滤材特殊，且紧密，制造工艺复杂，致使价格比较昂贵。为此在使用过程中，时常会进行反冲洗。使用一段时间后，会进行清洗，如何清洗且能满足工艺要求，最大限度的提高膜的使用寿命，节能减排，是当前重要的研究课题。Ultrafiltration membranes are widely used in the treatment of tap water. Due to the special and tight filter material, and the complex manufacturing process, the membrane is expensive. For this reason, backwashing is often performed during use. After a period of use, it will be cleaned. How to clean and meet the process requirements, maximize the service life of the membrane, save energy and reduce emissions, is an important research topic at present.
目前的清洗方法是将超滤膜取出，放入清洗槽中用清洗液进行浸泡清洗，清洗液中加有清洗剂，如氢氧化钠，清洗后的清洗液排放到中和池进行中和，然后排放，中和池占地面积大，且仅仅采用中和就排放不能达到排放标准，对环境造成二次污染。目前的方法清洗液不能重复利用，导致清洗成本高。The current cleaning method is to take out the ultrafiltration membrane and put it into a cleaning tank for soaking and cleaning with a cleaning solution. A cleaning agent, such as sodium hydroxide, is added to the cleaning solution, and the cleaned cleaning solution is discharged into a neutralization tank for neutralization. Then discharge, the neutralization tank occupies a large area, and only the neutralization can not meet the discharge standard, causing secondary pollution to the environment. The cleaning solution of the current method cannot be reused, resulting in high cleaning costs.
实用新型内容Utility model content
针对现有技术问题，本实用新型提供了一种超滤膜清洗废液回收处理系统，尽可能的回收利用清洗液，占地面积小，废液处理后能达到排放标准。Aiming at the problems of the prior art, the utility model provides an ultrafiltration membrane cleaning waste liquid recycling and processing system, which recycles the cleaning liquid as much as possible, occupies a small area, and can meet the discharge standard after the waste liquid is treated.
为实现以上目的，本实用新型通过以下技术方案予以实现：一种超滤膜清洗废液回收处理系统，包括清洗槽，其特征在于：所述清洗槽的上部设置有清洗液进液口，所述清洗液进液口通过清洗液管道与氢氧化钠缓冲配制罐的出液口相连，所述氢氧化钠缓冲配制罐的出液口上设置有过滤网，所述清洗液管道上设置有清洗液泵，所述清洗槽的槽底设置有清洗废液排放管道，该清洗废液排放管道分出两个支管分别与中和管式混合器以及清洗液过滤器相连，所述清洗液过滤器的出口与氢氧化钠缓冲配制罐的进口相连，所述中和管式混合器上设置有酸液加液管，所述酸液加液管上设置有自动控制阀门和流量计，所述中和管式混合器的出口管线上设置有pH传感器，所述中和管式混合器的出口管线与絮凝管式混合器相连，所述絮凝管式混合器上设置有絮凝剂加入管线，所述絮凝管式混合器的出口与絮凝过滤器相连，所述絮凝过滤器的排水口与排水管网相连。In order to achieve the above purpose, the present invention is achieved through the following technical solutions: an ultrafiltration membrane cleaning waste liquid recycling and processing system, comprising a cleaning tank, characterized in that: the upper part of the cleaning tank is provided with a cleaning liquid inlet, so The cleaning liquid inlet is connected with the liquid outlet of the sodium hydroxide buffer preparation tank through the cleaning liquid pipeline, the liquid outlet of the sodium hydroxide buffer preparation tank is provided with a filter screen, and the cleaning liquid pipeline is provided with cleaning liquid The bottom of the cleaning tank is provided with a cleaning waste liquid discharge pipe, and the cleaning waste liquid discharge pipe is divided into two branch pipes, which are respectively connected to the neutralization tube mixer and the cleaning liquid filter. The outlet is connected to the inlet of the sodium hydroxide buffer preparation tank, the neutralizing tubular mixer is provided with an acid liquid addition pipe, and the acid liquid addition pipe is provided with an automatic control valve and a flowmeter, and the neutralization pipe is provided with an acid liquid addition pipe. A pH sensor is arranged on the outlet pipeline of the tubular mixer, and the outlet pipeline of the neutralization tubular mixer is connected with a flocculation tubular mixer, and a flocculant addition pipeline is arranged on the flocculation tubular mixer, and the flocculation tubular mixer is provided with a flocculant addition pipeline. The outlet of the tubular mixer is connected with the flocculation filter, and the drain port of the flocculation filter is connected with the drain pipe network.
采用上述方案，在氢氧化钠缓冲配制罐中完成清洗液(清洗剂(包括氢氧化钠)加水配制成清洗液)的配制后，通过清洗液泵泵入清洗槽中，在泵入清洗槽的过程中，通过过滤网过滤后，进入清洗槽，避免杂物和未溶解的氢氧化钠进入清洗槽，对超滤膜造成损伤。超滤膜浸泡在清洗槽中进行清洗，清洗完成后，将清洗液排出，经过清洗液过滤器过滤，进入氢氧化钠缓冲配制罐补充一定的清洗剂后再次经过过滤网过滤后泵入清洗槽，达到清洗液回收利用的效果。Using the above scheme, after completing the preparation of the cleaning solution (the cleaning agent (including sodium hydroxide) is mixed with water to prepare the cleaning solution) in the sodium hydroxide buffer preparation tank, the cleaning solution is pumped into the cleaning tank, and the cleaning solution is pumped into the cleaning tank. During the process, after filtering through the filter screen, it enters the cleaning tank to avoid sundries and undissolved sodium hydroxide entering the cleaning tank and causing damage to the ultrafiltration membrane. The ultrafiltration membrane is immersed in the cleaning tank for cleaning. After the cleaning is completed, the cleaning liquid is discharged, filtered through the cleaning liquid filter, and enters the sodium hydroxide buffer preparation tank to supplement a certain cleaning agent. After filtering through the filter screen again, it is pumped into the cleaning tank. , to achieve the effect of cleaning liquid recycling.
当清洗液清洗一定次数后，不能再重复利用，只能处理排放，先经过中和管式混合器加酸液进行中和，通过pH传感器在线监测pH值，通过控制加入酸液的流量从而控制将清洗废液的pH调到中性，调节pH后的废液进入絮凝管式混合器加入絮凝剂进行絮凝反应，反应完后经过絮凝过滤器过滤后达到排放标准排放。采用絮凝管式混合器和絮凝过滤器，省去了絮凝反应池及沉淀池，采用中和管式混合器省去了调节池，这样大大缩小占地面积，降低处理成本。When the cleaning solution is cleaned for a certain number of times, it cannot be reused, and can only be treated for discharge. First, add acid solution through a neutralizing tube mixer for neutralization, monitor the pH value online through a pH sensor, and control the flow rate of the added acid solution. The pH of the cleaning waste liquid is adjusted to neutral, and the pH-adjusted waste liquid enters the flocculation tube mixer and adds the flocculant to carry out the flocculation reaction. The use of flocculation tubular mixers and flocculation filters eliminates the need for flocculation reaction tanks and sedimentation tanks, and the use of neutralization tubular mixers eliminates the need for adjustment tanks, which greatly reduces the floor space and treatment costs.
上述方案中：所述清洗废液排放管道的两个支管上分别设置有自动控制阀门。可实现自动切换，减少人工操作。In the above solution: two branch pipes of the cleaning waste liquid discharge pipeline are respectively provided with automatic control valves. It can realize automatic switching and reduce manual operation.
上述方案中：所述氢氧化钠缓冲配制罐内设置有pH传感器和搅拌装置。In the above scheme: the sodium hydroxide buffer preparation tank is provided with a pH sensor and a stirring device.
上述方案中：所述过滤网可拆卸设置在氢氧化钠缓冲配制罐的出液口上。方便更换清洗。In the above scheme: the filter screen is detachably arranged on the liquid outlet of the sodium hydroxide buffer preparation tank. Easy to replace and clean.
有益效果：本实用新型的超滤膜清洗废液回收处理系统能实现超滤膜清洗废液的回收利用以及处理，占地面积小，能实现自动化在线监测，废液能稳定处理达到排放标准。Beneficial effects: The ultrafiltration membrane cleaning waste liquid recycling and processing system of the utility model can realize the recycling and processing of ultrafiltration membrane cleaning waste liquid, occupies a small area, can realize automatic online monitoring, and the waste liquid can be stably treated to meet the discharge standard.
附图说明Description of drawings
图1为本实用新型的工艺流程图。Fig. 1 is the process flow diagram of the utility model.
具体实施方式Detailed ways
下面将结合实施例和附图，对本实用新型做进一步的描述。The present utility model will be further described below with reference to the embodiments and the accompanying drawings.
实施例1Example 1
如图1所示，本实用新型的超滤膜清洗废液回收处理系统由清洗槽1、氢氧化钠缓冲配制罐2、过滤网3、清洗液泵4、中和管式混合器5、清洗液过滤器6、自动控制阀门7、流量计8、pH传感器9、絮凝管式混合器10、絮凝过滤器11、搅拌装置12。As shown in Figure 1, the ultrafiltration membrane cleaning waste liquid recycling and processing system of the present utility model is composed of a cleaning tank 1, a sodium hydroxide buffer preparation tank 2, a filter screen 3, a cleaning liquid pump 4, a
清洗槽1的上部设置有清洗液进液口，清洗液进液口通过清洗液管道与氢氧化钠缓冲配制罐2的出液口相连，氢氧化钠缓冲配制罐2内设置有pH传感器9和搅拌装置12。氢氧化钠缓冲配制罐2的出液口上设置有过滤网3，优选过滤网3可拆卸设置在氢氧化钠缓冲配制罐2的出液口上。清洗液管道上设置有清洗液泵4，清洗槽1的槽底设置有清洗废液排放管道，该清洗废液排放管道分出两个支管分别与中和管式混合器5以及清洗液过滤器6相连，在两个支管上分别设置有自动控制阀门7。清洗液过滤器6的出口与氢氧化钠缓冲配制罐2的进口相连，中和管式混合器5上设置有酸液加液管，酸液加液管上设置有自动控制阀门7和流量计8，中和管式混合器5的出口管线上设置有pH传感器9，中和管式混合器5的出口管线与絮凝管式混合器10相连，絮凝管式混合器10上设置有絮凝剂加入管，絮凝剂加入管线上设置有流量计8和自动控制阀门7，絮凝管式混合器10的出口与絮凝过滤器11相连，絮凝过滤器11的排水口与排水管网相连。The upper part of the cleaning tank 1 is provided with a cleaning liquid inlet, and the cleaning liquid inlet is connected with the liquid outlet of the sodium hydroxide buffer preparation tank 2 through the cleaning liquid pipeline, and the sodium hydroxide buffer preparation tank 2 is provided with a
尽管已经示出和描述了本实用新型的实施例，对于本领域的普通技术人员而言，可以理解在不脱离本实用新型的原理和精神的情况下可以对这些实施例进行多种变化、修改、替换和变型，本实用新型的范围由所附权利要求及其等同物限定。Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes and modifications can be made to these embodiments without departing from the principles and spirit of the present invention , alternatives and modifications, the scope of the present invention is defined by the appended claims and their equivalents.
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| CN115925099A (en) * | 2022-11-09 | 2023-04-07 | 天津绿缘环保工程股份有限公司 | A skid-mounted MBR membrane cleaning and recycling device and cleaning method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN115925099A (en) * | 2022-11-09 | 2023-04-07 | 天津绿缘环保工程股份有限公司 | A skid-mounted MBR membrane cleaning and recycling device and cleaning method |
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