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Discrete PO4<3-> ion selective micro electrode and preparation method thereof

A PO43-, ion-selective technology, applied in the field of separated PO43- ion-selective microelectrode and its preparation

Active Publication Date: 2014-06-18
陕西省膜分离技术研究院有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

At present, the research on biological phosphorus removal from wastewater is mostly through the determination of PO in wastewater. 4 3- The concentration of the sludge internal PO 4 3- The determination is powerless

Method used

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  • Discrete PO4&lt;3-&gt; ion selective micro electrode and preparation method thereof
  • Discrete PO4&lt;3-&gt; ion selective micro electrode and preparation method thereof

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Embodiment Construction

[0033] The present invention will be further described below in conjunction with specific examples, but the examples do not constitute a limitation to the present invention.

[0034] see figure 1 As shown, the separated PO is given 4 3- The structure of the ion-selective microelectrode, the microelectrode includes a tubular tapered glass tube 501, the upper part of the tubular tapered glass tube 501 is a cylindrical end face, and the bottom is a tapered tip; a thin copper tube wound and connected in the middle runs through its inner cavity. Wire 503 and cobalt wire 502, the inner cavity of tubular tapered glass tube 501 is filled with bismuth alloy 504 wrapping cobalt wire 502 and the winding end, cobalt wire protrudes from the tapered tip of the tubular tapered glass tube and is tightly wrapped by the tapered tip , thin copper wire 503 protrudes from the cylindrical end surface closed by epoxy resin 505 .

[0035] The diameter of the tip of the cobalt wire 502 is selected ...

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Abstract

The invention discloses a discrete PO4<3-> ion selective micro electrode and a preparation method thereof. The micro electrode comprises a tubular conical glass tube, wherein one end of the tubular conical glass tube is a conical tip, and the other end of the tubular conical glass tube is a cylindrical end face; a metal wire in middle wound connection penetrates through the tubular conical glass tube; a cobalt wire is arranged at one end of the metal wire in middle wound connection, and a fine copper wire is arranged at the other end of the metal wire; the cobalt wire and the fine copper wire respectively extend out of the conical end and the cylindrical end face of the tubular conical glass tube; the inner part of the tubular conical glass tube is filled with bismuth alloy coated with the cobalt wire and at the winding end; the cylindrical end face of the tubular conical glass tube is closed by an epoxy resin and is fixed with the fine copper wire. The preparation method comprises the following steps: drawing the tubular conical glass tube, etching and mounting the cobalt wire, filling the bismuth alloy and assembling the micro electrode. The spatial distribution characteristics of concentration of phosphate (comprising metaphosphate) inside activated sludge groups and natural water body sediments can be rapidly and continuously measured.

Description

technical field [0001] The invention belongs to the field of environmental technology, and mainly relates to a separate PO 4 3- Ion-selective microelectrodes and methods for their preparation. Background technique [0002] Phosphorus in wastewater is mostly discharged with water in the form of phosphate, except for a very small part used in biosynthesis. When the concentration of nitrogen and phosphorus in the water body exceeds the standard at the same time, it is easy to induce eutrophication of the water body, which not only affects the water quality, but also may accelerate the demise of the natural water body, causing serious ecological problems. Studies have shown that it is more effective to curb the eutrophication of water bodies by controlling the concentration of phosphate in water bodies. According to reports, when the phosphorus content in the water body is lower than 0.5mg / L, the excessive growth of algae can be controlled; when it is lower than 0.05mg / L, the...

Claims

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Application Information

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IPC IPC(8): G01N27/333
Inventor 吕永涛王磊赵洁鞠恺苗瑞王旭东孙婷
Owner 陕西省膜分离技术研究院有限公司
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