Abstract: A method for recovering lithium is provided. The method includes the following steps. A lithium-containing solution is provided. A manganese oxide adsorbent is immersed in the lithium-containing solution, and a reducing agent is added to carry out an adsorption reaction, and the manganese oxide adsorbent is immersed in a solution containing an oxidizing agent to carry out a desorption reaction.

Abstract: A biological desulfurization processing system is provided. The biological desulfurization processing system includes a desulfurization reaction tank and a culture tank of desulfurization bacteria. The culture tank of desulfurization bacteria is used for cultivating desulfurization bacteria and is connected to the desulfurization reaction tank. The desulfurization reaction tank includes a desulfurization reaction zone. The desulfurization reaction zone includes at least one desulfurization layer and at least one supporting layer, and the desulfurization layer and the supporting layer are stacked in a staggered manner. A biological desulfurization processing method is also provided.

Abstract: A method for recovering lithium is provided. The method includes the following steps. A lithium-containing solution is provided. A manganese oxide adsorbent is immersed in the lithium-containing solution, and a reducing agent is added to carry out an adsorption reaction, and the manganese oxide adsorbent is immersed in a solution containing an oxidizing agent to carry out a desorption reaction.

Abstract: A method and an apparatus for hydrolyzing an organic solid are described. The method includes mixing an organic solid and a nanobubble water having a plurality of nanobubbles, to form an organic liquid, in which the nanobubbles contain a combustible gas; and applying an ultrasonic wave on the organic liquid, such that the nanobubbles generate an additional cavitation effect. A preprocessor is applicable to an organic solid processing system having an anaerobic digestion tank, in which the anaerobic digestion tank has anaerobic microbes for generating a combustible gas. The preprocessor includes a nanobubble water generator, a digestion tank, and an ultrasonic wave generator. With the method and the structure, the nanobubbles are used to increase the probability of generation of the additional cavitation effect, and the combustible gas is used to improve an impact force of bursts produced by the cavitation effect.

Abstract: A method and an apparatus for hydrolyzing an organic solid are described. The method includes mixing an organic solid and a nanobubble water having a plurality of nanobubbles, to form an organic liquid, in which the nanobubbles contain a combustible gas; and applying an ultrasonic wave on the organic liquid, such that the nanobubbles generate an additional cavitation effect. A preprocessor is applicable to an organic solid processing system having an anaerobic digestion tank, in which the anaerobic digestion tank has anaerobic microbes for generating a combustible gas. The preprocessor includes a nanobubble water generator, a digestion tank, and an ultrasonic wave generator. With the method and the structure, the nanobubbles are used to increase the probability of generation of the additional cavitation effect, and the combustible gas is used to improve an impact force of bursts produced by the cavitation effect.

Abstract: A method and an apparatus for hydrolyzing an organic solid are described. The method includes mixing an organic solid and a nanobubble water having a plurality of nanobubbles, to form an organic liquid, in which the nanobubbles contain a combustible gas; and applying an ultrasonic wave on the organic liquid, such that the nanobubbles generate an additional cavitation effect. A preprocessor is applicable to an organic solid processing system having an anaerobic digestion tank, in which the anaerobic digestion tank has anaerobic microbes for generating a combustible gas. The preprocessor includes a nanobubble water generator, a digestion tank, and an ultrasonic wave generator. With the method and the structure, the nanobubbles are used to increase the probability of generation of the additional cavitation effect, and the combustible gas is used to improve an impact force of bursts produced by the cavitation effect.

Abstract: A method and an apparatus for hydrolyzing an organic solid are described. The method includes mixing an organic solid and a nanobubble water having a plurality of nanobubbles, to form an organic liquid, in which the nanobubbles contain a combustible gas; and applying an ultrasonic wave on the organic liquid, such that the nanobubbles generate an additional cavitation effect. A preprocessor is applicable to an organic solid processing system having an anaerobic digestion tank, in which the anaerobic digestion tank has anaerobic microbes for generating a combustible gas. The preprocessor includes a nanobubble water generator, a digestion tank, and an ultrasonic wave generator. With the method and the structure, the nanobubbles are used to increase the probability of generation of the additional cavitation effect, and the combustible gas is used to improve an impact force of bursts produced by the cavitation effect.