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Water deep purification method

A water purification and deep technology, applied in chemical instruments and methods, water pollutants, water/sewage treatment, etc., can solve the problems of powder activated carbon loss and sedimentation speed, etc., and achieve the purpose of weakening the binding force, improving the purification capacity, and controlling the operating cost. Effect

Inactive Publication Date: 2016-05-04
QINGDAO PACIFIC CHEM EQUIP CO LTD
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Problems solved by technology

[0007] In view of the problems existing in the above-mentioned prior art, the object of the present invention is to provide a deep water purification method, which can simultaneously solve the loss problem of powdered activated carbon and the problem of low settling velocity by using carbon addition and magnetic flocculation precipitation, and has a simple structure , small size, widely applicable characteristics

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Embodiment 1

[0033] A deep water purification method, comprising the steps of:

[0034] Step 1, adsorption step: adding a powdery adsorbent to the sewage, so that the powdery adsorbent and sewage are mixed and contacted;

[0035] Step 2, flocculation step: adding magnetic powder, flocs are formed in the sewage;

[0036] Step 3, precipitation step: floc precipitation, sewage separation into clean water and sedimentation sludge;

[0037] Step 4, reflux step: the powdered adsorbent in the sedimentation sludge is refluxed into the adsorption step for recycling.

[0038] Among them, in step one, the powdery adsorbent absorbs the adsorbable matter in the sewage; in the step two, the magnetic powder and the powdery adsorbent participate in flocculation, and form flocs together with the adsorbable matter and insoluble matter in the sewage; the precipitation described in step three Sludge includes insoluble matter, adsorbable matter, magnetic powder, and powdery adsorbent in sewage; in step 4, th...

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Abstract

The invention belongs to the field of waste water treatment, and in particular relates to a water deep purification method. The water deep purification method comprises the following steps: step I, an adsorption step: adding powdered adsorbent into sewage, and mixing the powdered adsorbent and the sewage to enable the powered adsorbent to be in contact with the sewage; step II, a flocculation step: adding magnetic powder, and forming floc in the sewage; step III, a precipitation step: precipitating the floc, and separating the sewage into pure water and precipitated sludge; and step IV, a refluxing step. By virtue of flocculation and precipitation by adding carbon and magnetic powder, the unsaturated loss problem and low settlement speed problem of powder activated carbon can be simultaneously solved. The water deep purification method has the characteristics of simple structure, small size and wide application range.

Description

technical field [0001] The invention belongs to the field of wastewater treatment, and in particular relates to a deep water purification method. Background technique [0002] Sedimentation method is a traditional solid-liquid separation technology. Sedimentation water purification technology is widely used at home and abroad. The principle is that suspended solids with a density heavier than water settle naturally under the action of gravity, thereby separating from water. Loaded flocculation technology belongs to heterogeneous nucleation, that is, adding high-density insoluble granular medium to water, and using the gravity settling property of the medium to accelerate the formation of flocs and promote their precipitation. Since the 1990s, loading flocculation technology has been gradually applied, of which the main types are: sand loading flocculation (Actiflo) and magnetic loading coagulation (CoMag). [0003] Sand-loaded flocculation technology (Actiflo) was developed...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F9/12
CPCC02F9/00C02F1/281C02F1/283C02F1/44C02F1/488C02F1/52C02F2101/16C02F2101/30
Inventor 管春光张杰晋文全
Owner QINGDAO PACIFIC CHEM EQUIP CO LTD
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