A system includes a charger and a cracker. An antiviral may be delivered through the charger. The cracker may include a first section and a second section to control the flow of the antiviral from the charger. The first section may receive the charger. The first section and the second section may be coupled together by using screw threads on the first and second sections. The cracker is configured to regulate the flow of antiviral into the user. The antiviral within the charger may include oxygen (O2) and nitrous oxide (N2O). Specifically, the antiviral may a mixture including 75% N2O and 25% O2 that inactivates the DNA and/or RNA of viruses, viroids, and germs.

A system includes a charger and a cracker. An antiviral may be delivered through the charger. The cracker may include a first section and a second section to control the flow of the antiviral from the charger. The first section may receive the charger. The first section and the second section may be coupled together by using screw threads on the first and second sections. The cracker is configured to regulate the flow of antiviral into the user. The antiviral within the charger may include oxygen (O2) and nitrous oxide (N2O). Specifically, the antiviral may a mixture including 75% N2O and 25% O2 that inactivates the DNA and/or RNA of viruses, viroids, and germs.

A process for the catalytic oxidation of ammonia, comprising: passing an ammonia-containing gas, in the presence of oxygen, over a catalyst contained in a reactor, obtaining a process gas containing nitrogen oxides, and cooling said process gas with a heat exchanger accommodated in the reactor, wherein a portion of said process gas, located in the shell side, bypasses the heat exchanger and forms a hot current which mixes with cooled gas downstream the heat exchanger, and the bypass is regulated on the basis of a target outlet temperature of the mixed process gas.

A process for the catalytic oxidation of ammonia, comprising: passing an ammonia-containing gas, in the presence of oxygen, over a catalyst contained in a reactor, obtaining a process gas containing nitrogen oxides, and cooling said process gas with a heat exchanger accommodated in the reactor, wherein a portion of said process gas, located in the shell side, bypasses the heat exchanger and forms a hot current which mixes with cooled gas downstream the heat exchanger, and the bypass is regulated on the basis of a target outlet temperature of the mixed process gas.

The invention relates to a method for nitrogen removal from aqueous medium, comprising steps of (a) converting NH.sub.4.sup.+ in the aqueous medium to NO.sub.2.sup.− by partial aerobic nitrification, (b) partially reducing the obtained NO.sub.2.sup.− to N.sub.2O in anoxic conditions, and (c) decomposing N.sub.2O to N.sub.2 with energy recovery. A mixture of ferrous sulfate and ferric sulfate is used in step (b) for reduction of NO.sub.2.sup.− to N.sub.2O.

The invention relates to a method for nitrogen removal from aqueous medium, comprising steps of (a) converting NH.sub.4.sup.+ in the aqueous medium to NO.sub.2.sup.− by partial aerobic nitrification, (b) partially reducing the obtained NO.sub.2.sup.− to N.sub.2O in anoxic conditions, and (c) decomposing N.sub.2O to N.sub.2 with energy recovery. A mixture of ferrous sulfate and ferric sulfate is used in step (b) for reduction of NO.sub.2.sup.− to N.sub.2O.

The present disclosure generally relates to implantable devices including a releasable nitrite ion and to methods of preparing and using such compositions and devices. In one embodiment, the device is a stent, for example, a vascular stent. In another embodiment, the nitrite ion is ionically bound to an inorganic ion.

The present disclosure generally relates to implantable devices including a releasable nitrite ion and to methods of preparing and using such compositions and devices. In one embodiment, the device is a stent, for example, a vascular stent. In another embodiment, the nitrite ion is ionically bound to an inorganic ion.

A nitrous oxide purification method includes a step of performing gas separation by introducing a mixed gas containing nitrous oxide into a gas separation membrane including a polymer material to cause nitrous oxide to selectively permeate the gas separation membrane.

A nitrous oxide purification method includes a step of performing gas separation by introducing a mixed gas containing nitrous oxide into a gas separation membrane including a polymer material to cause nitrous oxide to selectively permeate the gas separation membrane.