Preparation method of modified carbon fiber for organic waste water adsorption and degradation

Abstract

The invention discloses a preparation method of modified carbon fiber for organic waste water adsorption and degradation. The modified carbon fiber is prepared from raw materials of water glass, surfactants, ferrous sulfate, sodium borohydride, coconut husk, phenol and polyvinyl alcohol and the like. The coconut husk is used for preparing porous carbon fiber; through the many times modification process treatment, the porous carbon fiber with high mechanical intensity and high adsorption performance is obtained; finally, through soaking reaction, zero-valent iron is loaded onto the carbon fiber; the adsorption performance of the carbon fiber is used for enriching organic contaminants in the water body; the organic degradation is performed through the zero-valent iron; the goal of thoroughlyeliminating organic contaminants is achieved. The preparation method is simple; the reaction conditions are mild; the obtained product can be repeatedly utilized; secondary pollution cannot be generated on the environment; the method can be widely applied to the field of organic sewage treatment.

Description

technical field [0001] The invention relates to the technical field of sewage treatment, in particular to a method for preparing modified carbon fibers for adsorption and degradation of organic wastewater. Background technique [0002] With the development of my country's industrial and agricultural levels, the demand for water resources is gradually increasing. However, China has a large population and a relatively short supply of resources per capita. How to save water resources and reuse water resources has become a concern of people, and in the reuse of water resources, organic wastewater treatment is the most important. At present, the treatment methods for organic water bodies mainly rely on municipal engineering methods, namely sewage interception, revetment, dredging and water exchange. These methods have the following shortcomings: 1. The amount of revetment and dredging is large, the cost is high, and the sludge removed Improper treatment can easily cause seconda...

AI Technical Summary

Problems solved by technology

At present, the treatment methods for organic water bodies mainly rely on municipal engineering methods, namely sewage interception, revetment, dredging and water exchange. These methods have the following shortcomings: 1. The amount of revetment and dredging is large, the cost is high, and the sludge removed Improper treatment can easily cause secondary pollution; 2. Complete sewage interception cannot be achieved. Since rivers, lakes and other water bodies are open systems, pollution sources such as atmospheric deposition cannot be completely intercepted; 3. Water quality after dredging Unable to maintain, because the micro-ecosystem in the water body is destroyed with the removal of sediment, the self-purification ability of rivers and lakes decreases, once it encounters exogenous pollutants, it will continue to eutrophicate, forming a vicious circle

[0005] At the same time, because the carbon fiber preparation process includes carbonization or graphitization, the carbon atom stacking orientation on the carbon fiber surface is more consistent, and the atomic layer spacing is smaller, so the fiber surface is non-polar and chemically inert. In addition, the carbon fiber surface has hydrophobic, Shortcomings such as smoothness and low adsorption performance lead to poor interfacial bonding between carbon fiber and its composite material