Water sample pretreatment method and pretreatment system

A technology for pretreatment and water sampling, applied in the field of water treatment, can solve problems such as inconvenient operation of on-site maintenance personnel, and achieve the effect of improving service life, reducing maintenance costs, and meeting the needs of use.

Pending Publication Date: 2020-06-16
河北科瑞达仪器科技股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since the clean water source cannot be obtained on site, it is bo...

Method used

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  • Water sample pretreatment method and pretreatment system
  • Water sample pretreatment method and pretreatment system
  • Water sample pretreatment method and pretreatment system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0056] A water sample pretreatment method, comprising the following steps:

[0057] A. Removal of Particulate Matter

[0058]a1. Lead the water samples in the pipeline online, and reduce the flow rate of the water body to stratify the water body. The settleable particles in the water body will sink and be discharged, and the floatable particles in the water body will float up and be discharged with the continuous entry of the water body;

[0059] a2. The suspended particles contained in the water body are filtered through the external light metal filter membrane tube;

[0060] B. After the particulate matter in the water body is removed, part of it will be taken as a water sample and sent to the water quality analyzer for detection; the other part will enter advanced treatment;

[0061] C. Pure water is obtained after advanced treatment, which is used for on-site preparation of reagents;

[0062] D. System maintenance, reverse flushing of the metal filter membrane tube with ...

Embodiment 2

[0080] Based on the first embodiment, the advanced treatment is the same as the advanced treatment of water in the prior art, and can be selected and combined according to the pollutant components contained in the water body. Advanced processing can include:

[0081] c1. Ultraviolet radiation to inactivate bacteria. Ultraviolet irradiation has been widely used in water treatment. The 254nm ultraviolet rays emitted by low-pressure mercury lamps are an effective sterilization method, because DNA and proteins in bacteria will absorb ultraviolet rays and cause death.

[0082] c2. Use the ultrafiltration membrane to perform deep filtration treatment on the water body to remove colloids, suspended solids, particulate matter, etc. in the water body. Ultrafiltration (UF) is a filtration term referring to a filter that removes particles such as protein-sized particles. The membrane pore size is usually between 1-50nm. The ultrafiltration membrane with hollow fiber structure usually h...

Embodiment 3

[0088] Based on the first embodiment, before step a2, a primary filtration of the suspended particulates contained in the water body is also included to remove large suspended particulates.

[0089] The water sample filtering device also includes a filter chamber 600, which is closed and sleeved outside the external light-type metal filter membrane tube 200 for preliminary filtration of suspended particles, and can protect the external light-type metal filter membrane tube 200. The filter chamber 600 There is a one-way baffle 603 that can be opened when the backwash mechanism 500 is working.

[0090] like Figure 4 As shown, one end of the one-way water baffle 603 is hinged to the warehouse body, and a tension spring 604 is fixed between the inner side of the water baffle 603 and the inner wall of the warehouse. When the backwash mechanism 500 works, the high-pressure gas Or the liquid overcomes the tension of the circlip 604 and pushes the one-way water baffle 603 to open ou...

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PUM

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Abstract

The invention discloses a water sample pretreatment method and a pretreatment system. An inner cavity of a treatment bin is divided into a liquid dividing bin, a settling bin, a floating bin and a suspending bin; settleable particles, suspended particles and floatable fibrous floating particles in a water sample can be separated; the settleable particles are discharged from the continuous sand discharge port after settling, the floatable particles are discharged from the liquid outlet along with water flow after floating upwards, and then the suspended particles are filtered through the filter, so that a water sample only contains trace tiny particles, the maintenance cost of the water sample analyzer is reduced, and the service life of the water sample analyzer is prolonged. After the water sample collection is completed, the external light type metal filtering membrane pipe can be directionally cleaned from inside to outside by utilizing a backwashing mechanism, and the backwashing of each circulation process further ensures the qualified water sample and the suction of the qualified water sample. In combination with impurity removal treatment for obtaining a water sample in theearlier stage, the steps and the cost of advanced treatment can be simplified, and purified water obtained through advanced treatment can be used as cleaning water or reagent preparation water.

Description

technical field [0001] The invention relates to the technical field of water treatment, in particular to a water sample pretreatment method and a pretreatment system. Background technique [0002] Water quality monitoring is the process of monitoring and measuring the types of pollutants in the water body, the concentration and change trend of various pollutants, and evaluating the water quality status. When the water quality monitor in the prior art performs online monitoring on a water sample with high turbidity, there are many and relatively large sedimentable particles such as sand and gravel, suspended particles with the same density as the water sample, etc. Floatable fibrous floating particles, especially in sewage treatment plants, iatrogenic sewage, and textile, printing and dyeing, papermaking and other production sewage, the impurities in the water samples not only affect the water quality measurement indicators, but also pose a threat to the analysis and measurem...

Claims

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Application Information

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IPC IPC(8): G01N1/34
CPCG01N1/34
Inventor 郝立辉郝拴菊菅晓亮燕晓朋李神洲
Owner 河北科瑞达仪器科技股份有限公司
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