Manufacturing method of small membrane module suitable for experimental scale use

Abstract

The invention discloses a manufacturing method of a small membrane module suitable for experimental scale use, and relates to a membrane module technology. The manufacturing method comprises the following steps: gathering two ends of a bundle of membrane filaments together in a mode that openings of the membrane filaments are in the same direction; penetrating the open ends of the combined membrane filaments into the PVC pipe and exposing the open ends from the other end of the PVC pipe; blocking the opening of the membrane wire by a silica gel plug; inserting the open ends of the membrane filaments and the PVC pipe into liquid epoxy resin together for standing for a period of time, and during the period, the liquid epoxy resin moving into the PVC pipe in a static mode and fills the space, except the membrane filaments, in the PVC pipe; and after the epoxy resin filled in the PVC pipe is solidified, taking out the membrane wire and the PVC pipe, and cutting off the blocked opening end of the membrane wire, so that the opening of the membrane wire is reopened. The method has the characteristics of simplicity in operation, good packaging effect, high success rate, less membrane filament waste and capability of flexibly controlling the scale of the membrane component.

Description

technical field [0001] The invention relates to the technical field of membrane modules, in particular to a method for manufacturing a small membrane module suitable for use on an experimental scale. Background technique [0002] Using membrane technology to separate pollutants from water molecules can reuse precious water resources. At the same time, precious metal ions in pollutants can also be filtered, concentrated and recycled. The economic benefits are very considerable and have been widely used. [0003] The membrane module is a specific form in the application of membrane technology, and the membrane module is mainly composed of hollow fiber membrane filaments. In industry, membrane modules are generally obtained by encapsulating hollow fiber membranes with machines. This kind of membrane modules has large specifications and large water output, which is not suitable for laboratory treatment of small-scale wastewater; Membrane modules composed of few hollow fiber mem...

AI Technical Summary

Problems solved by technology

In industry, membrane modules are generally obtained by encapsulating hollow fiber membranes with machines. This kind of membrane modules has large specifications and large water output, which is not suitable for laboratory treatment of small-scale wastewater; Membrane modules composed of few hollow fiber membranes are difficult to purchase and expensive

There is also a scheme of encapsulating hollow fiber membrane filaments to make membrane modules by gluing. When making membrane modules, first use high temperature to melt and bond the opening of the membrane filaments, and then glue the membrane filaments with glue; this method is not easy to control the temperature. , the bonding effect at the opening of the membrane filament is unstable, and the fusion of the opening of the membrane filament is not complete. The glue will enter the interior of the membrane filament and block the opening of the membrane filament. Extremely low, a lot of membrane filaments are wasted

[0004] Membrane modules are also commonly used in laboratories to separate pollutants in water and determine membrane fouling mechanism experiments. However, the existing membrane module packaging methods are not suitable for the preparation of laboratory membrane modules.

There is an urgent need for a method for manufacturing small-scale hollow fiber membrane modules suitable for experimental scale use. This method does not require the use of industrial machinery for packaging, nor does it have a low success rate like the gluing method, and is simple and easy to operate. The specific conditions and separation requirements of the amount of water and the pollutants to be separated, as well as the height and diameter of the membrane bioreactor where the membrane module is installed, flexibly control the scale of the membrane module (such as the number of membrane filaments and the length of the membrane filament)

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