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Backwashable filter element-nanofiltration drinking water deep purification system

A technology for deep purification and drinking water, used in water pollutants, water/sewage treatment, water treatment parameter control, etc. Demand and other issues, to achieve the effect of automatic management, maintaining pre-filtration performance, and reducing maintenance and replacement costs

Pending Publication Date: 2020-09-11
GREENTECH ENVIRONMENTAL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The security filter has a limited ability to intercept pollutants, and the filter element needs to be replaced frequently, which not only increases the workload of the operator, but also makes it difficult to meet the needs of automation
The operation and maintenance costs of microfiltration and ultrafiltration pretreatment are relatively high

Method used

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  • Backwashable filter element-nanofiltration drinking water deep purification system
  • Backwashable filter element-nanofiltration drinking water deep purification system
  • Backwashable filter element-nanofiltration drinking water deep purification system

Examples

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Embodiment Construction

[0022] In order to more clearly understand the above objects, features and advantages of the present disclosure, the solutions of the present disclosure will be further described below. It should be noted that, in the case of no conflict, the embodiments of the present disclosure and the features in the embodiments can be combined with each other.

[0023] In the following description, many specific details are set forth in order to fully understand the present disclosure, but the present disclosure can also be implemented in other ways than described here; obviously, the embodiments in the description are only some of the embodiments of the present disclosure, and Not all examples.

[0024] Such as figure 1 As shown, a backwashable filter element-nanofiltration drinking water depth purification system provided by the present disclosure includes a backwashable pre-filter unit, a nanofiltration unit and a backwash unit, and the backwashable pre-filter unit is provided with a b...

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PUM

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Abstract

The invention relates to the technical field of drinking water purification, and provides a backwashing filter element-nanofiltration drinking water deep purification system. The system comprises a backwashing pre-filtering unit, a nanofiltration unit and a backwashing unit, wherein a backwashing filter element is arranged in the backwashing pre-filtering unit, a nanofiltration filter element is arranged in the nanofiltration unit, the water outlet side of the backwashing filter element is connected with the water inlet side of the nanofiltration filter element, and the backwashing unit is connected with the water outlet side of the backwashing filter element; the backwashing pre-filtering unit can be used for pre-filtering pollutants with relatively large particle sizes in the raw water;the problem that a nanofiltration filter element in the nanofiltration unit is easy to pollute is solved; meanwhile, the backwashing filter element in the backwashing pre-filtering unit can be backwashed through the backwashing unit after being polluted, so that the pre-filtering performance of the backwashing pre-filtering unit can be kept, the maintenance and replacement cost of the backwashingfilter element and the nanofiltration filter element is reduced, and the stable effluent and excellent water quality of the drinking water deep purification system are ensured.

Description

technical field [0001] The disclosure relates to the technical field of drinking water purification, in particular to a backwashable filter element-nanofiltration drinking water deep purification system. Background technique [0002] As the country's water quality standards become more and more stringent, people's requirements for drinking water are gradually increasing, and the water quality of the conventional drinking water treatment process "coagulation-sedimentation-filtration-disinfection" gradually fails to meet the new water quality standards. Some waterworks improve the water quality of waterworks by adding advanced treatment processes such as ozone-biological activated carbon technology, membrane separation technology, photocatalytic oxidation technology, etc. Among them, the nanofiltration membrane treatment process has gradually attracted people's attention because of its stable water quality and other advantages. . [0003] In the application, the nanofiltratio...

Claims

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Application Information

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IPC IPC(8): C02F1/44
CPCC02F1/442C02F2303/14C02F2201/006C02F2303/16C02F2201/005C02F2101/101C02F2101/14C02F2209/005C02F2209/03C02F1/008C02F2103/02C02F1/001C02F9/00B01D61/027C02F2209/05B01D65/02B01D61/04B01D65/08
Inventor 刘牡林晓峰黎泽华苏英强牛晓红韩慧铭张小芳
Owner GREENTECH ENVIRONMENTAL CO LTD
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