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Water treatment composite flocculating agent and application thereof

A composite flocculant and water treatment technology, which is applied in metallurgical wastewater treatment, flocculation/sedimentation water/sewage treatment, etc., can solve the problems that the medicine can not fully exert its efficacy, the time of dosing is difficult to control, and the performance of the medicine is insufficient. Development and application, simplification of dosing equipment, excellent effect

Inactive Publication Date: 2014-01-15
SCIMEE TECH & SCI CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The main disadvantages of the one-time dosing process of the mixed chemical solution are: insufficient performance of the chemical agent, large dosage, easy to cause waste, and secondary pollution
For the batch-dosing process, it is difficult to control the dosing time, and there are also problems that the chemical cannot fully exert its effectiveness, increase the operating cost, cause secondary pollution, and the effluent index is unstable.

Method used

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  • Water treatment composite flocculating agent and application thereof

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] The comparative test of the present invention and the prior art is as follows:

[0020] 1. Under the same amount of water, dosage, reaction time and stirring intensity, the compound flocculant of the present invention flocculates faster than ordinary PAC agents to form flocculent flowers, the flocculation group is dense and the particles are large, which is beneficial to the disk in the subsequent unit. Adsorption of flocs, better removal of turbidity.

[0021] 2. Utilize magnetic separation technology to deal with the hot-rolled turbid ring water of a certain steel plant, wherein the composite flocculant of the present invention and PAM are respectively added, and the test results are as follows:

[0022]

[0023] Test description: The composite flocculant of the present invention purifies the hot-rolled turbid ring water of a steel plant, and the effluent has good light transmittance and high visibility, which is better than the reuse standard of the productio...

Embodiment 2

[0028] A composite flocculant for water treatment, the flocculant is composed of multiple flocculants. Weigh polyaluminum chloride 70%, aluminum sulfate 29%, and ferrous sulfate 1%, add 1L of water, and stir at a speed of 300r / min. 5 minutes to get it.

Embodiment 3

[0030] A composite flocculant for water treatment, the flocculant is composed of a variety of flocculants, weighed polyaluminum chloride 89% polyaluminum chlorate 10.8% ferric sulfate 0.2%, add 1L of water under the condition of rotating speed 300r / min Stir for 5 minutes and that's it.

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Abstract

The invention belongs to the sewage treatment field, and especially relates to a water treatment composite flocculating agent and an application thereof. The flocculating agent is obtained by compounding a plurality of flocculating agents, and comprises 70-89wt% of polyaluminum chloride, 10-30wt% of an aluminum salt and 0.1-2wt% of an iron salt. The composite flocculating agent has the large strength characteristic of an inorganic flocculating agent, also has the bridge formation, network bashing, strong sweeping capability and large floc of an organic flocculating agent, and overcomes the disadvantages of low floc strength and large consumption of organic flocculating agents.

Description

technical field [0001] The invention belongs to the field of sewage treatment, in particular to a composite flocculant for water treatment and its application. Background technique [0002] Magnetic separation is a technology that achieves material separation through the magnetic field attraction provided by a magnet. It belongs to the physical separation method and was developed in the United States in the early 1970s. It can quickly separate magnetic impurities in a mixture. Magnetic separation uses the magnetism of impurity particles in wastewater to separate. For non-magnetic or weakly magnetic particles in water, magnetic seeding technology can make them magnetic. With the help of the external magnetic field, the magnetic suspended solids in the wastewater are separated, so as to achieve the purpose of purifying the water. Compared with conventional methods such as sedimentation and filtration, the magnetic separation method has a series of advantages such as large pr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F1/52C02F103/16
Inventor 倪明亮易洋
Owner SCIMEE TECH & SCI CO LTD
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