Pretreatment device applying magnetic coagulation to reuse water of printed circuit board wastewater
A printed circuit board and pretreatment device technology, which is applied in water/sewage treatment, water/sewage multi-stage treatment, water/sewage treatment equipment, etc., can solve the problem of inability to treat fine particles of wastewater, insufficient treatment, and affecting water quality, etc. question
Pending Publication Date: 2021-04-30
深圳市诺金环保技术有限公司
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Problems solved by technology
[0004] The purpose of the present invention is to provide a pretreatment device for magnetic coagulation applied to printed circuit board waste water reuse, so as to solve the problem that the existing water pretreatment device proposed in the above background technology is not thorough enough to treat the waste water and cannot The fine particles inside the wastewater are completely treated, and the direct discharge affects the water quality
Method used
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[0017] see figure 1 , the present invention provides a technical solution: a magnetic coagulation applied to printed circuit board wastewater reuse water pretreatment device, including a wastewater storage tank 1, the left end of the wastewater storage tank 1 is fixed with a raw water inflow pipe 2, the main reaction mechanism as follows:
[0018]
[0019] Since the flocculant PAC does not only interact with PO during the dosing reaction 4 3- It reacts, and also reacts with the alkalinity in water to form Al(OH) 3 , causing a lot of waste of medicine. Therefore, a reflux reaction system is added to the magnetic flocculation system to re-react the wasted chemicals, which can greatly save the cost of chemicals.
[0020] The reaction mechanism of saving the trial dose of medicine is as follows:
[0021]
[0022] In addition to the main phosphorus removal reaction when adding PAC, a part of the flocculation reaction occurs. The mechanism of the flocculation reaction is ...
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The invention belongs to the technical field of wastewater treatment, and particularly relates to a pretreatment device applying magnetic coagulation to reuse water of printed circuit board wastewater. The pretreatment device comprises a wastewater accommodating tank, wherein a raw water inflow pipe is fixedly arranged at the left end of the wastewater accommodating tank; a high-speed shearing machine is fixedly arranged at the right end of the wastewater accommodating tank; a first water inlet pipe is transversely arranged between and fixedly connected with the wastewater accommodating tank and the high-speed shearing machine; the left end of the first water inlet pipe is fixedly connected with the right side wall of the wastewater accommodating tank; the right end of the first water inlet pipe is fixedly connected with the left side wall of the high-speed shearing machine; a water outlet pipe is fixedly arranged at the right end of the high-speed shearing machine; and a magnetic separator is fixedly arranged at the lower end of the high-speed shearing machine. Thus, fine particles in the wastewater can be efficiently and completely treated, and water resources are prevented from being polluted by the fine particles in the wastewater when the wastewater is discharged.
Description
technical field [0001] The invention relates to the technical field of waste water treatment, in particular to a pretreatment device for magnetic coagulation applied to printed circuit board waste water reuse. Background technique [0002] Magnetic separation technology is a technology that treats substances with a magnetic field. This technology is an emerging technology that uses the difference in magnetic sensitivity of elements or components to treat substances with an external magnetic field to strengthen the separation process. With the advent of strong magnetic field and high gradient magnetic separation technology, the application of magnetic separation technology has been from the separation of strong magnetic large particles to the removal of weak magnetic and diamagnetic fine particles, from the initial mineral separation, coal desulfurization to industrial water treatment, Developed from the separation of magnetic and nonmagnetic elements to the separation betwee...
Claims
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CPCC02F1/283C02F1/488C02F1/5236C02F1/58C02F2001/007C02F2201/48
Inventor 付涛岳丽
Owner 深圳市诺金环保技术有限公司