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Water treatment method for implementing drinking water deep purification using immobilization biological ceramic particle technology

A biological ceramsite and deep purification technology, applied in the field of water treatment, can solve the problems of rising water treatment costs, poor turbidity removal effect, and increased concentration of metal ions in water

Active Publication Date: 2007-01-31
江苏哈宜环保研究院有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to solve the problems of poor organic matter and turbidity removal effect of the current drinking water treatment method, increase of coagulant dosage, increase of water treatment cost, increase of metal ion concentration in water, and generation of a large amount of organic halides in water. Water treatment method for deep purification of drinking water realized by immobilized biological ceramsite technology

Method used

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Effect test

specific Embodiment approach 1

[0004] Specific embodiment one: the immobilized biological ceramsite technology of the present embodiment realizes the water treatment method of deep purification of drinking water according to the following steps: (1) the incoming water is passed into the immobilized biological ceramsite tank after sedimentation and filtration; (2) The treated water flowing out of the immobilized biological ceramsite tank is subjected to ozonation treatment and then flows into the secondary immobilized biological ceramsite tank; (3) The treated water flowing out of the secondary immobilized biological ceramsite tank is successively subjected to microfiltration and secondary ozonation treatment And ultraviolet sterilization, you can water.

[0005] The permanganate index in the influent water is reduced from 4.84mg / L to 0.99mg / L after being treated by this embodiment. Table 1 records the dry weight of engineering bacteria grown in water and in this embodiment for 0-48 hours respectively.

[0...

specific Embodiment approach 2

[0008] Specific embodiment two: The difference between this embodiment and specific embodiment one is: the ceramsite of immobilized engineering bacteria is housed in the immobilized biological ceramsite tank and the secondary immobilized biological ceramsite tank, and the treated water is treated in the immobilized biological ceramsite tank. Both the granular tank and the secondary immobilized biological ceramsite tank adopt upward flow, the filtration rate is 4-4.4m / h, and the residence time in the tank is 20-30min. Others are the same as the first embodiment.

specific Embodiment approach 3

[0009] Specific embodiment three: The difference between this embodiment and specific embodiment one is: the ceramsite of immobilized engineering bacteria is housed in the immobilized biological ceramsite tank and the secondary immobilized biological ceramsite tank, and the treated water is treated in the immobilized biological ceramsite tank. Both the granular tank and the secondary immobilized biological ceramsite tank adopt upward flow, the filtration rate is 4.1-4.3m / h, and the residence time in the tank is 22-28min. Others are the same as the first embodiment.

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Abstract

The present invention relates to a water treatment method for implementing drinking water deep purification by utilizing immobilization biological ceramsite technology. Said water treatment method includes the following steps: (1), making the water to be treated undergo the processes of precipitation and filtration, then be fed into immobilization biological ceramsite tank; (2), making the water flowed out from said immobilization biological ceramsite tank undergo the process of ozonization treatment, then be flowed into secondary immobilization biological ceramsite tank; and (3), making the water flowed out from secondary immobilization biological ceramsite tank undergo the processes of microfiltration, secondary ozonization treatment and UV-ray sterilization so as to obtain the deep-purified drinking water.

Description

technical field [0001] The invention relates to a water treatment method. Background technique [0002] The current drinking water treatment methods are coagulation, sedimentation or clarification, filtration and disinfection. According to the characteristics of the source water, the appropriate treatment structure type is selected and combined into a drinking water treatment process. The disinfection method is mainly chlorine disinfection, and there are also a few water The factory adopts chlorine dioxide, ozone or ultraviolet disinfection. With the discharge of domestic sewage and industrial wastewater, as well as the loss of chemical fertilizers, herbicides and pesticides used in agriculture, the physical and chemical properties of the receiving water body are significantly deteriorating, and the number and concentration of organic pollutants are increasing sharply. . The current drinking water treatment method can only remove 20% to 30% of organic matter in polluted wa...

Claims

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Application Information

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IPC IPC(8): C02F3/00C02F1/78C02F1/32C12N11/14
Inventor 马放冯奇邱珊寇相全沃原
Owner 江苏哈宜环保研究院有限公司
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