Abstract: A method is provided for processing wastewater having organics even together with high-concentration ammonia-nitrogen, using an apparatus, comprising a catalyzation tank and a subsequent neutralization tank. Organic ammonia-nitrogen wastewater is introduced into tank for reaction without being pre-adjusted by acidic agent or mixing with other additives. A persulfate oxidant is used to process high-efficiency oxidative degradation for ammonia-nitrogen and toxic organics in wastewater through catalyzing oxidation of ultraviolet activation, tiny-amount-transition-metal catalyzation, or both of them, for simultaneous reductions or complete removals of ammonia-nitrogen and organic carbon contents. After neutralization according to actual needs, the final output is complied with biological treatment conditions, discharged-water quality standards, or recycled-water standards.

Abstract: A method for prelithiating a soft carbon negative electrode includes the steps of: disposing the soft carbon negative electrode and a lithium metal piece spaced apart from each other with a lithium-containing electrolyte present therebetween; prelithiating the soft carbon negative electrode at a first constant C-rate until a voltage thereof is reduced to a first predetermined voltage not greater than 0.3 V vs. Li/Li+, the first constant C-rate being not greater than 5 C; prelithiating the soft carbon negative electrode at a second constant C-rate until the voltage thereof is reduced to a second predetermined voltage lower than the first predetermined voltage, the second constant C-rate being not greater than 0.2 C and being less than the first constant C-rate; and prelithiating the soft carbon negative electrode at a prelithiation constant voltage which is not greater than the second predetermined voltage, thereby completing prelithiation of the soft carbon negative electrode.

Abstract: A method for making a carbon material for an anode of a lithium-ion secondary battery includes a sequence of: a) heating a heavy hydrocarbon oil to obtain a green coke, b) a heating the green coke to form a carbon-containing material, c) grinding the carbon-containing material into a powder, and collecting a portion of the powder, d) heating the portion of the powder to obtain a carbonaceous powder, and e) adding pitch to the carbonaceous powder and heating the pitch-contained carbonaceous powder. A lithium-ion secondary battery, which includes the anode having the carbon material, is also disclosed.

Abstract: A method for making a soft carbon includes providing a coke, and subjecting the coke to a carbonization process. The carbonization process includes a preliminary calcination treatment conducted by calcining the coke at a first temperature ranging from 800° C. to 1000° C. to obtain a pre-calcinated coke, followed by a main calcination treatment conducted by calcining the pre-calcinated coke at a second temperature ranging from 1000° C. to 1200° C., and/or a surface-modifying calcination treatment conducted by calcining the pre-calcinated coke in the presence of a carbonaceous material for modifying surfaces thereof at a third temperature ranging from 1000° C. to 1200° C. A soft carbon made by the method is also disclosed.

Abstract: A method is provided for processing wastewater having organics even together with high-concentration ammonia-nitrogen, using an apparatus, comprising a catalyzation tank and a subsequent neutralization tank. Organic ammonia-nitrogen wastewater is introduced into tank for reaction without being pre-adjusted by acidic agent or mixing with other additives. A persulfate oxidant is used to process high-efficiency oxidative degradation for ammonia-nitrogen and toxic organics in wastewater through catalyzing oxidation of ultraviolet activation, tiny-amount-transition-metal catalyzation, or both of them, for simultaneous reductions or complete removals of ammonia-nitrogen and organic carbon contents. After neutralization according to actual needs, the final output is complied with biological treatment conditions, discharged-water quality standards, or recycled-water standards.

Abstract: A method for making a soft carbon includes providing a coke, and subjecting the coke to a carbonization process. The carbonization process includes a preliminary calcination treatment conducted by calcining the coke at a first temperature ranging from 800° C. to 1000° C. to obtain a pre-calcinated coke, followed by a main calcination treatment conducted by calcining the pre-calcinated coke at a second temperature ranging from 1000° C. to 1200° C., and/or a surface-modifying calcination treatment conducted by calcining the pre-calcinated coke in the presence of a carbonaceous material for modifying surfaces thereof at a third temperature ranging from 1000° C. to 1200° C. A soft carbon made by the method is also disclosed.

Abstract: The present invention provides a densifying agent adopted a total weight of a refined pitch which is 100 as a basis, the composition of the refined pitch includes 19-30 toluene insolubles (TI) by weight, 0.1˜0.3 quinoline insolubles (QI) by weight, 0˜0.001 ash by weight and 18˜30 quinoline solubles (QS) by weight, in which the temperature of the softening point of the refined pitch is in the range of about 120° C. to 140° C. Accordingly, the amount of the toluene insolubles (TI) and the small amount of the quinoline insolubles (QI) can be mixed with the carbon-based material to increase the density of the carbon-based material, and the content of the quinoline solubles (QS) is used for adjusting the binding effect of the densifying agent with the binder.