Preparation method of bagasse active carbon/ferric oxide

Abstract

The invention discloses a preparation method of bagasse active carbon / ferric oxide, which comprises the following steps of: adding 800ml of distilled water into a 2L beaker, adding 100ml of 0.01-0.1mol / L hexadecyl trimethylamine bromide into the 2L beaker, heating and boiling; slowly dropwise adding 100ml of 0.5-2.5mol / L ferric chloride solution in stirring to obtain a brownish red colloid; adding 20-60g of bagasse into the brownish red colloid, stirring and standing for 24 hours; slowly adding ammonia water with the volume ratio of 1.0-10.0 percent into the 2L beaker under stirring by using an automatic titrimeter and regulating pH to 7.4 to obtain water solution of a bagasse / iron hydroxide mixed suspended matter; filtering the water solution of the bagasse / iron hydroxide mixed suspended matter and drying 105-110 DEG C to obtain a bagasse / iron hydroxide mixture; respectively carbonizing the bagasse / iron hydroxide mixture at 400-600 DEG C to obtain an active carbon / ferric oxide composite; and grinding the active carbon / ferric oxide composite with over 60 meshes. The preparation method has the advantages of simple process and low cost, and the prepared product can be widely applied to dephosphorization production procedures in city town sewage treatment plants.

Description

technical field [0001] The invention relates to a preparation method of bagasse activated carbon / iron oxide. Background technique [0002] Phosphorus has both positive and negative effects on the environment and human health. For example, an appropriate amount of phosphorus is beneficial to the growth of crops, but excessive phosphorus in rivers and lakes will lead to eutrophication of the water quality, resulting in a large number of algae and aquatic plants, turbid water quality, hypoxia in the water body, and the death of aquatic organisms such as fish , destroyed the ecological balance of the earth, and threatened the living environment of human beings. Therefore, phosphorus removal and phosphorus recovery from wastewater is an important goal of current water treatment research. At present, the removal methods of phosphorus in water mainly include: biological method, chemical precipitation method, artificial wetland method, ion exchange method and adsorption method. T...

AI Technical Summary

Problems solved by technology

The preparation of activated carbon / iron oxide composite materials has also been reported in a small amount of literature and used for the adsorption of arsenic, but so far, the preparation of bagasse activated carbon / iron oxide has not been reported using bagasse as the main raw material.