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Water treatment method for realizing drinking water deep purification by fixed bioactive carbon technology

A technology of biological activated carbon and deep purification, applied in the field of drinking water treatment, can solve the problems of restricting technology promotion, application and impact

Inactive Publication Date: 2005-03-23
HARBIN INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, since biological activated carbon (BAC) is naturally formed during operation, there are many problems in theoretical research and practical application, which affect and limit the promotion and application of this technology.

Method used

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  • Water treatment method for realizing drinking water deep purification by fixed bioactive carbon technology
  • Water treatment method for realizing drinking water deep purification by fixed bioactive carbon technology
  • Water treatment method for realizing drinking water deep purification by fixed bioactive carbon technology

Examples

Experimental program
Comparison scheme
Effect test

specific Embodiment approach 1

[0007] Specific embodiment one: present embodiment it comprises that the water to be treated passes through the following several processes: A. coagulation-sedimentation, the conventional treatment process of filtration, B. enters the ozone contact tower, C. enters the immobilized biological activated carbon reactor, D.UV disinfection, wherein the "immobilized biological activated carbon reactor" of the C step is that an activated carbon column is housed in the reactor, and engineering bacteria are fixed on the activated carbon column. In order to ensure the high activity of the engineering bacteria in the IBAC column, it is necessary to It is adsorbed on granular activated carbon (GAC) in the natural state. Therefore, according to the situation, we chose the immobilization technology of engineering bacteria immobilized on GAC during the circulation flow process. The method of immobilizing engineering bacteria on the activated carbon column is as follows: first, soak and rinse...

specific Embodiment approach 2

[0027] Specific Embodiment 2: This embodiment is a comparative test aimed at the beneficial effects of the present invention.

[0028] image 3 Shown is the schematic diagram of the comparison experiment device, wherein 11 is the filtered water pipe, 12 is the water distribution tank, 13 is the ozone generator, 14 is the raw water tank, 15 is the ozone column, 16 is the ozone tail gas discharge pipe, 17 is the BAC column, 18 is an IBAC column, 19 is a sampling port, and 20 is an outlet pipe.

[0029] The raw water used in the experiment is filtered water from a ground water plant in a city in the south. The activated carbon columns (two in total, connected in parallel) are made of plexiglass, and the water flows downward. The height of the carbon column is 1750mm, the inner diameter is 80mm, the height of the sand cushion is 200mm, the height of the carbon layer is 1000mm, and the contact time of the empty bed can be controlled within the range of 5-30min.

[0030] By the co...

specific Embodiment approach 3

[0031] Specific Embodiment Three: This embodiment is a productive test for the present invention.

[0032] Apply the present invention in the direct drinking water actual project of a high-rise building, Figure 4 Shown is the process flow chart of the productive experiment. The raw water used in the experiment is the terminal water of the municipal pipe network.

[0033] Through the determination of the permanganate index, it is proved that IBAC has a good removal effect on micro-pollutants, and the average value of the effluent permanganate index is less than 2.0mg / L, achieving the purpose of deep purification of drinking water. At the same time, it also has strong impact resistance and high stability.

[0034] Through the measurement of turbidity, it is proved that IBAC has a high removal effect on turbidity, and the average turbidity removal rate reaches 65%, so that the effluent water quality has completely reached the excellent standard in terms of sensory.

[0035] Thr...

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Abstract

A process for deeply cleaning drinking water by immobilized bioactive carbon includes such steps as coagulating-depositing, filtering, ozone treating in ozone contact tower, treating by the engineering microbes immobilized activated carbon column in reaction tower and ultraviolet disinfecting.

Description

Technical field: [0001] The invention relates to a drinking water treatment method. Background technique: [0002] In recent years, the problem of water pollution has been widespread in our country. According to the data in "China's Environmental Conditions in 2002" issued by the State Environmental Protection Administration, "In 2002, among the 741 key monitoring sections of the seven major river systems, 29.1% of the sections met the water quality requirements of Class I to III, and 30.0% of the sections belonged to IV, Class V water quality, 40.9% of the sections belong to inferior class V water quality. If considering the trace organic matter and environmental hormones in water that are usually difficult to detect, the current water quality pollution of drinking water sources is even more serious. Therefore, it is necessary to improve drinking water purification technology The level of research and application is crucial to implement the sustainable development of water...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F1/32C02F1/52C02F1/78C02F3/10C02F9/14
CPCY02W10/10
Inventor 马放韩健任南琪杨基先
Owner HARBIN INST OF TECH
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