Water purification system having high recovery rate

Abstract

This invention discloses a high-recovery-rate water purification system, including a pre-filtration device, a reverse osmosis device, a detection device, and a dosing device. The pre-filtration device is configured to pre-filter raw water. The reverse osmosis device is connected to the pre-filtration device via a pipeline to purify the pre-filtered raw water. The detection device is operatively connected to the pipeline to detect microbial activity parameters in the pre-filtered raw water. The dosing device is operatively connected to the pipeline to add an antimicrobial agent to the pre-filtered raw water at a dosage determined by the microbial activity parameters. Therefore, while inhibiting biofilm formation, the dosage of the antimicrobial agent is controlled to a minimum, thereby achieving stable operation of the system with a high recovery rate.

Claims

1. A water purification system with a high recovery rate, comprising: A pre-filtration device is configured to pre-filter raw water; A reverse osmosis device is connected to the pre-filtration device via a pipeline to purify the pre-filtered raw water; a detection device is operatively connected to the pipeline to detect the microbial activity parameters in the pre-filtered raw water. And a dosing device operatively connected to the pipeline to add an antibacterial agent to the pre-filtered raw water at a dosage determined by the microbial activity parameters.

2. The high recovery rate water purification system as described in claim 1, wherein, The detection device is a bioluminescent detection device.

3. The high recovery rate water purification system as described in claim 2, wherein, The bioluminescence detection device includes a reactor and a cold light detector, and the cold light detector is operatively connected to the reactor; wherein, the reactor is configured to obtain a water sample to be analyzed from the pre-filtered raw water and mix it with a microbial lysis solution and an enzyme reaction solution to carry out an ATP bioluminescence reaction, and the cold light detector is configured to detect the intensity of the cold light generated by the ATP bioluminescence reaction and thereby convert it into the microbial activity, which serves as the basis for determining the dosage of the drug.

4. The high recovery rate water purification system as described in claim 3, wherein, The bioluminescence detection device also includes a sampler, and the reactor uses the sampler to sample the pre-filtered raw water to obtain the water sample to be analyzed.

5. The high recovery rate water purification system as described in claim 3 or 4, further comprising a controller operably connected to the detection device and the dosing device, for obtaining the microbial activity parameters based on the cold light intensity analysis, and further determining the dosage of the antibacterial agent based on the microbial activity parameters.

6. A high-recovery-rate water purification system as described in claim 5, wherein, The controller is a programmable logic controller.

7. A high-recovery-rate water purification system as described in claim 1, wherein, The pre-filter includes a first-stage filter and a second-stage filter connected in series after the first-stage filter.

8. A high-recovery-rate water purification system as described in claim 7, wherein, The first-stage filter is a PP cotton filter, and the second-stage filter is an activated carbon filter.

9. A high-recovery-rate water purification system as described in claim 7 or 8, wherein, The pre-filter also includes a third-stage filter connected in series after the second-stage filter.

10. A high-recovery-rate water purification system as described in claim 9, wherein, The third-stage filter is another activated carbon filter or an ultrafiltration membrane filter.

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