The purification method comprises: a step for placing the laden gas stream in contact with a saline solution stream, the saline solution stream comprising, before placement in contact, at least 300 g/l of salts, at least part of the quantity of volatile organic compound being extracted from the laden gas stream and absorbed by the saline solution stream, the placement in contact step producing a purified gas stream containing a residual quantity of volatile organic compound and a laden saline solution stream; a step for recovering the volatile organic compound, comprising a sub-step for decanting a laden saline solution stream, leading to the separation of a phase containing the volatile organic compound and of the saline solution.

A cooking apparatus and method for use of the same are disclosed that utilize forced convection and radiant heating cooking. In one embodiment, the cooking apparatus includes an oven housing defining a cooking chamber, a circulation chamber, and a catalyst chamber. The catalyst chamber is superposed to the circulation chamber and the circulation chamber is superposed to the cooking chamber. Heating elements are located in at least one of the cooking chamber and the circulation chamber. An airflow circulation loop is located between the cooking chamber and the circulation chamber. An exhaust airflow path is provided from the circulation chamber to the catalyst chamber to an exterior of the oven housing. A fan subassembly is located within the oven housing and the fan subassembly circulates convection air along the airflow circulation loop with a portion of the convection air being diverted into the exhaust airflow path.

An indoor smoker includes a cabinet defining a discharge vent, a smoking chamber having a chamber outlet, and an exhaust assembly including an exhaust duct and a recirculation duct providing fluid communication between the chamber outlet and the discharge vent. An air handler urges a flow of smoke through a catalytic converter positioned within the exhaust duct to lower volatile organic compounds prior to discharging the smoke. A recirculation port may be defined between the recirculation duct and the exhaust duct upstream of the catalytic converter and a damper may direct the flow of smoke through the recirculation port when the smoke contains unacceptable levels of volatile organic compounds.

An air purifier (100) includes a housing (400) formed with an air duct (401), an ozone generation device (20), an activated carbon purification unit (80), and a fan (200) arranged in the air duct (401). The air duct (401) includes an air inlet (402) and an air outlet (403). The air outlet (403) is disposed indoors. The ozone generation device (20) and the activated carbon purification unit (80) are arranged in the air duct (401) along the direction of the air inlet to the air outlet (403), and the ozone generation device (20) is used to generate ozone. The fan (200) is used to suck gas from the air inlet (402) during operation and let the gas pass through the ozone generation device (20) and the activated carbon purification unit (80) to be discharged from the air outlet (403) into the room.

Contaminant treatment methods and systems are described. Methods utilize biodegradable, non-toxic materials that can carry one or more functionalities useful for the remediation of fluids such as liquid or gaseous waste streams, chemical spills, etc. The carrier materials carry one or more functional groups that can target particular contaminants of a fluid for removal and/or modification to a more benign form. Targeted contaminants can include components of gaseous and/or liquids such as, and without limitation, gaseous discharges including VOCs and potentially hazardous contaminants such as organophosphorous compounds.

A system for neutralizing airborne microorganisms includes a conditioning section for accommodating a flow of air, the conditioning section including an air inlet; an air outlet; a packing chamber located downstream relative to the air inlet, a distribution chamber located downstream relative to the packing chamber and located above the packing chamber, the distribution chamber including at least one spray nozzle for spraying a liquid desiccant into the distribution chamber towards the packing chamber; a sump located below the packing chamber; a pump for propelling the liquid desiccant from the sump to the at least one spray nozzle; a droplet collection chamber located downstream relative to the at least one spray nozzle for removing droplets from the flow of air flowing through the droplet collection chamber; and a UV disinfection chamber located downstream relative to the droplet collection chamber and upstream relative to the air outlet.

A process for treating gaseous effluents developed in a coffee roasting installation making it possible to treat gaseous effluents developed in a coffee roasting installation, in which the effluents are passed through an oxidative catalytic converter. Within the catalytic converter use is made of a catalyst selected from the group including: a) a catalyst including a porous faujasite support containing copper oxide nanoparticles in a quantity of between 2% and 7% of the total weight of the catalyst; b) a catalyst including a porous -alumina support containing copper oxide nanoparticles in a quantity of between 2% and 7% of the total weight of the catalyst; and c) a catalyst including a mesoporous zeolite or silica support containing iron nanoparticles in a quantity of between 2% and 7% of the total weight of the catalyst.

An air cleaning device is disclosed. A first opening and closing member opens and closes an inlet of a housing. A second opening and closing member opens and closes an outlet of the housing. A first filter unit collects and separates foreign substances from contaminated air in the housing A circulation tube has a first end portion disposed at the inlet to communicate with the housing and a second end portion disposed at the outlet to communicate with the housing. A third opening and closing member opens and closes the circulation tube. A first heater is installed inside the circulation tube to heat air in the circulation tube. A blower is installed inside the circulation tube to deliver air from the circulation tube into the housing.

Systems and methods for storing a perishable object are provided. An example system comprises an enclosure body forming a cavity and a lid which removably engages with at least a portion of the enclosure body to form a chamber enclosing a perishable object. The system also comprises a thermal insulator disposed within the cavity, a temperature control system disposed within the cavity to adjust a temperature of the environment based on a target temperature range associated with the perishable object, a humidity control system disposed within the cavity, the humidifying system comprising a heating element in contact with a liquid to adjust a humidity of the environment based on a target humidity range associated with the perishable object.

Disclosed herein are aluminum oxide aerogels and methods of making and use thereof. The methods of making the aluminum oxide aerogel include contacting a solid comprising aluminum with a Ga-based liquid alloy to dissolve at least a portion of the aluminum from the solid, thereby forming an aluminum-alloy mixture; and contacting the aluminum-alloy mixture with a fluid comprising water, thereby forming the aluminum oxide aerogel. In some examples, the methods can further comprise capturing and converting carbon dioxide to a syngas comprising carbon monoxide and hydrogen.