4R coagulation water treatment process

A process method and water treatment technology, applied in the field of water treatment, can solve problems such as it is difficult to adapt to the miniaturization of equipment and equipment

Inactive Publication Date: 2012-10-17
北京太阳河环境技术有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0011] Modern coagulation technology is generally developed for large-scale centralized water supply...

Method used

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  • 4R coagulation water treatment process
  • 4R coagulation water treatment process
  • 4R coagulation water treatment process

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Experimental program
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Effect test

Embodiment Construction

[0023] There are mainly two implementation methods for the 4R coagulation water treatment process, see attached figure 2 . We have repeatedly verified the above two coagulation processes in experiments.

[0024] Figures and Examples

[0025] attached figure 1 It is a process flow diagram of repeated coagulation used by some waterworks. attached figure 2 These are two typical water treatment processes that can be used to implement 4R coagulation water treatment.

[0026] attached image 3It is a principle schematic diagram of an embodiment of a household water purification device produced by adopting the patented technology of the present invention. The treatment barrel 5 in the figure is an H-shaped stainless steel barrel, the size of the barrel is φ45X(65+30)cm, the upper part of the barrel has a volume of about 100L, and the lower part of the barrel is the equipment layer, circulation pump 1, dosing water cone 2, mixing device 3 etc. are all installed in the lower e...

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Abstract

The invention brings forward a 4R circulating coagulation water treatment technological process, which comprises four basic procedures of medication, mixing, surface flocculation and preliminary flocculation. The invention is characterized in that the processed water needs to undergo more than one time of medication-mixing-surface flocculation circulation or more than one time of medication-mixing-surface flocculation-preliminary flocculation circulation; and a downward flocculation and separately sealed mixing device is adopted. By the adoption of the technology, raw water range of traditional coagulation (2R coagulation) can be expanded, natural surface water and underground iron-bearing water can be processed, the water quality of an effluent can reach physical and chemical and sensual index in GB5749-2006 without filtration, and bacteria removing rate can reach more than 90%.

Description

technical field [0001] The patent of the invention is a technical method, which belongs to the field of water treatment, and is especially suitable for small water purification equipment. Background technique [0002] Coagulation generally includes three process engineering of dosing-mixing-flocculation. Among them, the mixing is carried out immediately after adding the medicine, and the added medicine and the water to be treated are fully mixed with high-intensity stirring. Generally, the speed gradient G of the mixing is required to be about 500-1000 / second, and the mixing time is 10-30 seconds. In order to quickly disperse and hydrolyze the flocculant, and destabilize the colloids in the treated water to quickly aggregate to form flocs (this process is also called microflocculation). The mixed water is then flocculated and stirred at a lower speed (velocity gradient G is about 20-100 / sec) for T5-20 minutes, so that the flocs will form flocculation through flocculation an...

Claims

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Application Information

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IPC IPC(8): C02F1/52
Inventor 孙长贵孙晓云姚中贵
Owner 北京太阳河环境技术有限公司
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