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Water recycling equipment

Country/Region china
Company Anhui Environmental Protection Technology Co., Ltd.
Categories Water Treatment Equipment
Telephone 0551-2844550 2820499
ICP License Issued by the Chinese Ministry
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Water recycling equipment

By Type

Water for different purposes, there are three approaches

1. One is to deal with drinking water standards to be used directly back to everyday life, that is, direct recycling of water resources, this approach applies to areas of extreme shortage of water resources, but high investment, complex process;

2. The other is to deal with the non-drinking water standards, mainly for non-direct contact with the body of water, such as toilet flushing, floor, car cleaning, greening and poured, fire, water and other industrial general, it is The usual way in the water.

3. Industry can take advantage of the water reuse technology will reach the standard of industrial sewage efflux re-treatment, usually mixed with demineralized water beds and other equipment to reach the level that can be recycled for industrial use, to conserve capital and protect environment.

Classified according to treatment

By treatment

In water treatment processes are generally divided into three types

1. Physical treatment methods:

Membrane filtration method for large changes in water quality conditions.

This process is characterized by: device compact, easy to operate, and little affected by load variations.

Membrane filtration is the action of external forces, was separated from the solution to a certain velocity along the membrane surface flow, the solution solvent and low molecular weight substances, inorganic ions through the membrane from the high side into the low side, and as the discharge filtrate ; the solution of polymer material, such as colloidal particles and microbial membrane was retained, the solution is concentrated and excreted in concentrated form.

2. Physical and chemical methods:

Changes in water quality for the larger situation. Commonly used methods are: sand filter, activated carbon adsorption, flotation, coagulation and precipitation. This process is characterized by: using hollow fiber ultrafilter for processing, advanced technology, compact structure, small footprint, system of intermittent operation, management simple.

3. Biological treatment:

For higher organic content of sewage. General use of activated sludge, contact oxidation, biological treatment methods such as rotating biological contactors. Or used alone, or some combination of biological treatment methods, such as contact oxidation + biological filter; biological filter + activated carbon adsorption; dial ten sand filtration and other processes. This process has the ability to adapt to changes in hydraulic loading, resulting in less sludge, the advantages of easy maintenance and management.

At present, some countries and regions as excessive, unrestrained development of water resources at the same time, environmental awareness is rather poor, so that surface water and groundwater are subject to different degrees of pollution, so that the water quality of the original has a good supply of fresh water by restrictions; Second, be focused on the development of fresh water from the water point distance, the high cost of a one-time investment, so that some water-scarce regions inability to expand supply capacity. The degree of management to non-drinking in this leads to the concept of water. Water is to people in life and production of quality hybrid water used (excluding the kitchen stool and drainage), miscellaneous drainage (excluding fecal sewage) and living sewage (waste) water treatment by recycling rainwater recycling, as floor cleaning, gardening, car washing, air conditioning cooling, toilet flushing, fire and other non-direct contact with the mixed water body. Its water quality is lower than urban drinking water quality standards, but higher than the sewage discharged into surface water discharge standards to allow, that the water quality drinking water and living sewage water quality standards to allow between, it is named " in the water. "

Development of water reuse technology has been developing rapidly recently in the United States, Japan, India, Britain and other countries (especially Japan highlighted) have been widely used. These countries are in the country, regional characteristics determine appropriate to their nationa

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