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Activated carbon can be made from many kinds of carbonaceous substances, including wood, sawdust, coal, coke, peat, lignin, fruit stones, hard nut shells, sucrose pulp, bone, lignite, petroleum residue, etc. Among them, coal and coconut shell have become the most commonly used raw materials for making activated carbon. The manufacture of activated carbon is basically divided into two processes. The first process includes dehydration and carbonization. The raw material is heated and dried at a temperature of 170 to 600°C, and about 80% of the original organic matter is carbonized. The second process is to activate the charcoal, which is accomplished by reacting with an activator such as water vapor and charcoal. In the endothermic reaction, a mixed gas composed of CO and H2 is mainly produced, which is used to burn and heat the charcoal to an appropriate temperature (800 to 1000°C) to burn off all decomposable substances in it, resulting in a developed microporous structure and a huge specific surface area, so it has a strong adsorption capacity.

Activated carbon regeneration (activation) refers to the use of physical or chemical methods to remove the adsorbate adsorbed on the activated carbon and restore its adsorption performance without destroying the original structure of the activated carbon, so as to achieve the purpose of repeated use.

Activated carbon adsorbs many pollutants in wastewater, leachate and process water, and is also suitable for soil and groundwater remediation.

Activated carbon for sugar liquid decolorization is made of high-quality wood chips, etc., and is produced by zinc chloride method. It has a developed mesopore structure, large adsorption capacity, and fast filtration. It is mainly suitable for decolorization, purification, deodorization and impurity removal of various amino acid industries, refined sugar decolorization, monosodium glutamate industry, glucose industry, starch sugar industry, food additives, and other high-pigment solutions.

Sludge is a by-product of sewage treatment and contains a large amount of harmful substances. Sludge incineration is to oxidize and decompose the organic matter in sludge into carbon dioxide and water under high temperature conditions, and recover heat energy at the same time, which can realize the harmless treatment and resource utilization of sludge. It is currently the most important method of sludge heat treatment and utilization.

For potable water applications, activated carbon is often used to remove taste, color and odor-causing compounds and other trace contaminants. Typical removal targets include:

– Geosmin and MIB
– Medications, including acetaminophen, ibuprofen, and other medical compounds
– Insecticides, herbicides and insecticides

Pyrolyze the discharged waste lithium battery as a whole to realize the decomposition and removal of the electrolyte, diaphragm and binder, and then realize the full dissociation of the electrode material and the electrode sheet, and further realize the recovery of the organic pyrolysis liquid through the condensation method

Recovery of tungsten and vanadium from molybdenum ore, magnesium oxide calcination, uranium ore, laterite nickel ore, steelmaking waste slag

The lactic acid acid hydrolysis solution is decolorized by a granular carbon column to obtain a clear lactic acid aqueous solution. After a separation and membrane filtration, organic substances such as sugars and macromolecules are removed to obtain a relatively pure lactic acid solution.
The purer lactic acid solution undergoes further decolorization and ion exchange to obtain a pure lactic acid solution, and then undergoes vacuum evaporation, thin film evaporation and molecular distillation to obtain high-purity lactic acid. Lactic acid products.