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Tiny carbon granules enrichment detecting method for drinking water after active carbon treatment

A detection method, activated carbon technology, applied in the field of water treatment, can solve the problems of lack of effective detection methods for fine carbon particles of activated carbon, and achieve the effect of easy implementation, easy acquisition, and high economic feasibility

Inactive Publication Date: 2008-09-24
HOHAI UNIV
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Problems solved by technology

[0003] The existing literature shows that there is still a lack of effective detection methods for fine carbon particles in activated carbon effluent at home and abroad.

Method used

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  • Tiny carbon granules enrichment detecting method for drinking water after active carbon treatment
  • Tiny carbon granules enrichment detecting method for drinking water after active carbon treatment

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Experimental program
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Embodiment Construction

[0015] Apply the "microfiltration membrane interception enrichment, microscope inspection MPN counting method" to detect fine carbon particles in drinking water treated with activated carbon. The specific implementation is as follows:

[0016] The experiment was carried out in a water plant in the south. Taking the fine activated carbon particles in the activated carbon effluent as the research object, a reasonable and effective step-by-step separation scheme was determined by selecting microfiltration membranes with different pore sizes. The operating parameters of the activated carbon column are empty bed contact time of 18-25min, combined air-water backwashing. The test was started after the activated carbon column was running stably.

[0017] The study found that the fine carbon particles in the effluent water of the activated carbon column are mostly below 50 μm, and the microfiltration membrane is used to intercept the water sample during detection. The water sample is...

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Abstract

The invention relates to a test method of fine carbon particles rich in water after treatment of drinking water activated carbon. The method is from the perspective of drinking water safety, conducts quantitative analysis to the fine carbon particles through a physical separation process and is characterized in establishing ''microfiltration membrane intercepting and microscope inspection calculation methods'' which is used to detect the fine carbon particles in the water after treatment of the drinking water activated carbon and provides necessary means for technical research on carbon bacteria disinfection control. The test method has the advantages that: (1) the technology realizes effective test to the fine carbon particles in the water after treatment of the activated carbon, completes measurement and analysis through the physical separation process without changing any physical and chemical properties of the carbon particles, so as to ensure the test stability and accuracy; (2) the technology can conduct microfiltration membrane intercepting and microscope inspection calculation in a common laboratory, with easily available materials for the experiment, low operation cost and high economic feasibility; (3) the carbon particle test technology is applicable to any activated carbon process water plant, and has the advantages of easiness in operation and realization.

Description

technical field [0001] The invention relates to the technical field of water treatment, in particular to a method for detecting the enrichment of fine carbon particles in drinking water treated with activated carbon. technical background [0002] In recent years, the problem of micro-pollution of drinking water sources in my country has become increasingly prominent. Conventional water treatment processes cannot effectively remove organic matter, color, odor and algae toxins in micro-polluted raw water, making it difficult to guarantee the quality of water supply. Activated carbon advanced treatment method has been widely used. The activated carbon process is mostly set after filtration and before disinfection. The adsorption properties of activated carbon make the concentration of nutrients and dissolved oxygen near the carbon particles higher, and the microorganisms attached to the porous surface of the carbon particles can avoid the hydraulic shearing effect. Due to the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N15/00G01N1/28
Inventor 林涛王磊磊陈卫
Owner HOHAI UNIV
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