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Zeta electric potential real-time online detecting device of suspension colloid waste water

A technology for detection devices and suspended colloids, applied in measuring devices, material analysis through electromagnetic means, instruments, etc., to achieve the effects of easy implementation, real-time monitoring, and optimal control

Inactive Publication Date: 2013-09-04
GUANGXI UNIV
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Problems solved by technology

[0003] In order to overcome the deficiency that the existing zeta potential meter cannot measure the zeta potential of wastewater on-line, the utility model device provides a method for continuously measuring the zeta potential of wastewater on-line. The device can not only measure the zeta potential of wastewater online, but also can be completed by PLC Acquisition of accurate data, intuitive and convenient monitoring and management of data in the WINCC interface, and control of flocculant dosage through changes in zeta potential

Method used

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  • Zeta electric potential real-time online detecting device of suspension colloid waste water
  • Zeta electric potential real-time online detecting device of suspension colloid waste water

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Embodiment Construction

[0010] in figure 1 Among them, the diameter of the ceramic composite membrane tube is 25mm, with 19 holes, and the pore diameter of the ceramic membrane body is 50nm.

[0011] in figure 2 In the zeta potential online detection device shown, the ceramic composite membrane tube sleeve (1) is inside the polytetrafluoroethylene tube (2), and electrodes (4) are installed at both ends, and the digital millivoltmeter (6) is connected to the electrode. ), the measuring ends of the differential pressure transmitter (5) are respectively installed at both ends of the porous ceramic composite membrane tube (1), one end of the PTFE tube (2) is connected with a water pump (3), and the other end flows out to measure Waste liquid. During the measurement, a water pump (3) pumps the waste water sample into the measurement chamber. Driven by a certain pressure difference, the charge ions on the surface of the colloidal particles of the waste liquid are separated from the surface of the flow chann...

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Abstract

The invention discloses a zeta electric potential real-time online detecting device of suspension colloid waste water. The device enables suspension colloid waste water to flow through a porous ceramic composite membrane pipe under the driving of a water suction pump by virtue of a streaming potential method; the streaming potential is measured by digital millivoltmeters which are positioned at two ends of the porous ceramic composite membrane pipe and are connected with an electrode, and the voltage difference at two ends is measured by a differential pressure transmitter. The streaming potential and the pressure difference at two ends are collected in real time through a PLC (programmable logic controller); the zeta electric potential is obtained through calculation according to a mathematic model, and is in communication with an upper position machine WINCC so as to monitor and manage the zeta electric potential as well as optimize and control the input quantity of flocculating agents; and water resource is purified, and the economical cost is also saved.

Description

Technical field [0001] The invention is a real-time online detection device for zeta potential of suspended colloidal wastewater. The device relates to the application of the theory of suspended colloidal double electric layer, the remote data acquisition and processing technology of PLC, the monitoring technology of man-machine interface and many other technical fields. . It is mainly used to monitor the zeta potential of suspended colloidal wastewater, especially suitable for the addition of Chinese medicine dosage in the flocculation section of pulping and papermaking wastewater. Background technique [0002] In recent years, water pollution in our country has become more and more serious, and the pulp and paper industry is particularly serious in water pollution. Therefore, it is necessary to adopt economic and effective treatment measures. The key link in the wastewater treatment section is flocculation, which is aimed at wastewater containing suspended particles and colloi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N27/00
Inventor 艾矫燕张圆圆周永华黄洪全黄清宝陆益民张玉华
Owner GUANGXI UNIV
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