Application of netural plant luffa hollow fibre material

Abstract

An application of luffa in preparing the dynamic membrane used in dynamic-membrane bioreactor is disclosed. Its advantages are high water permeability, low cost and biodegradable.

Description

technical field [0001] The invention relates to an application of natural plant loofah. Background technique [0002] Loofah is an annual climbing plant, which is cultivated all over the country. Except loofah meat is edible, because loofah (also known as loofah flesh) is an overlapping network body, loofah can be used for insoles and bath products, such as: 1. Patent No. CN00100043.8, name of invention: loofah medical treatment Health care insole and its preparation method. 2. Patent No.: CN91220236.X, Invention Name: Natural skin-enhancing bath towel, which belongs to daily bath products. [0003] Currently known dynamic membrane bioreactors (or membrane bioreactors, which are mainly divided into two types: integrated type and split type) are mostly composed of bioreactor systems and artificially synthesized organic polymer membrane components. Called dynamic membrane) through the vacuum pump or use the water head pressure difference on the upper part of the membrane mo...

AI Technical Summary

Problems solved by technology

Ordinary dynamic membrane bioreactors have two main disadvantages: 1. The artificially prepared organic polymer material is used as the substrate, and the outside is sealed with sieve silk, resulting in large dynamic membrane filtration resistance, small water output, relatively expensive price, and aging The filter material forms secondary pollution, and its disposal is extremely difficult, posing a potential hazard to the environment

2. The flushing strength of the split MBR membrane is weak, the pollution of the membrane is heavy, the water permeability of the membrane is low, and the membrane flux per unit area is generally only 50-80L / m 2 h

Organic polymer filter material is easy to age and fall off, easy to pollute, easy to block, and expensive, easy to form secondary pollution

Due to the high density, small specific surface area and small porosity of quartz sand in natural inorganic filter materials, when the sewage flows through the filter layer, the resistance is large and the biomass is small, so the load of the filter tank is not high, and the head loss is large, so it is not used much now.

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