A removable device for collecting, storing and transporting fermentable waste comprises, in a direction of flow of the fermentable waste, a feed device for supplying fermentable waste; a hopper for conveying the fermentable waste from the feed device to the grinder; a grinder arranged to grind the fermentable waste and form ground materials; a transfer device for transferring the ground materials to the storage tank; a storage tank for storing the ground materials; a device for emptying the storage tank; and an effluent filtering device connected to the storage tank. The transfer device is under positive pressure in the direction of flow of the fermentable waste, and the effluent filtering device is a solid filtering medium, preferably a carbon filter or a biofilter. The device further comprises a pressure relief valve.

A removable device for collecting, storing and transporting fermentable waste comprises, in a direction of flow of the fermentable waste, a feed device for supplying fermentable waste; a hopper for conveying the fermentable waste from the feed device to the grinder; a grinder arranged to grind the fermentable waste and form ground materials; a transfer device for transferring the ground materials to the storage tank; a storage tank for storing the ground materials; a device for emptying the storage tank; and an effluent filtering device connected to the storage tank. The transfer device is under positive pressure in the direction of flow of the fermentable waste, and the effluent filtering device is a solid filtering medium, preferably a carbon filter or a biofilter. The device further comprises a pressure relief valve.

An air remediation device includes a housing including an internal chamber, an inlet, an outlet, and a potting material dividing said internal chamber into a first compartment and a second compartment. At least one hollow fiber membrane is supported by the potting material and held in the first compartment. Airborne viral particles are directed (a) through the inlet into the first compartment and then (b) through the at least one hollow fiber membrane, where the airborne viral particles are captured to produce treated air, and then the treated air is directed (c) through the second compartment before being exhausted from the housing through the outlet.

An air remediation device includes a housing including an internal chamber, an inlet, an outlet, and a potting material dividing said internal chamber into a first compartment and a second compartment. At least one hollow fiber membrane is supported by the potting material and held in the first compartment. Airborne viral particles are directed (a) through the inlet into the first compartment and then (b) through the at least one hollow fiber membrane, where the airborne viral particles are captured to produce treated air, and then the treated air is directed (c) through the second compartment before being exhausted from the housing through the outlet.

A system for removing undesirable compounds from contaminated air includes a biofilter having an alkaline material introduction system and a fuzzy-logic based controller. A contaminant, such as hydrogen sulfide, is removed from contaminated air by passing the contaminated air through the biofilter.

A system for removing undesirable compounds from contaminated air includes a biofilter having an alkaline material introduction system and a fuzzy-logic based controller. A contaminant, such as hydrogen sulfide, is removed from contaminated air by passing the contaminated air through the biofilter.

The invention provides a solid material for air purification and disinfection and a preparation method and application thereof. The solid material includes: 50-60 wt. % of inorganic porous materials, 10-20 wt. % of nano titanium dioxide, 3-5 wt. % of fluorescent materials, 20-30 wt. % of sodium chlorite, 3-5 wt. % of sodium lignosulfonate, 1-10 wt. % of polyethylene glycol, and 1-10 wt. % of polyvinyl alcohol. The method for preparing the solid material includes: formulating the fluorescent material into a slurry by using a polyethylene glycol aqueous solution; uniformly mixing the nano titanium dioxide, the sodium lignosulfonate, and the fluorescent material formulated into the slurry, and then spraying the mixture on an inorganic porous material carrier to be uniformly adsorbed; and mixing the sodium chlorite with the above mixture for granulation to obtain the product. The solid material for air purification of the invention can be stored stably for a long time, and chlorine dioxide gas slowly released can degrade harmful substances in the air such as formaldehyde and kill bacteria in the air.

The invention provides a solid material for air purification and disinfection and a preparation method and application thereof. The solid material includes: 50-60 wt. % of inorganic porous materials, 10-20 wt. % of nano titanium dioxide, 3-5 wt. % of fluorescent materials, 20-30 wt. % of sodium chlorite, 3-5 wt. % of sodium lignosulfonate, 1-10 wt. % of polyethylene glycol, and 1-10 wt. % of polyvinyl alcohol. The method for preparing the solid material includes: formulating the fluorescent material into a slurry by using a polyethylene glycol aqueous solution; uniformly mixing the nano titanium dioxide, the sodium lignosulfonate, and the fluorescent material formulated into the slurry, and then spraying the mixture on an inorganic porous material carrier to be uniformly adsorbed; and mixing the sodium chlorite with the above mixture for granulation to obtain the product. The solid material for air purification of the invention can be stored stably for a long time, and chlorine dioxide gas slowly released can degrade harmful substances in the air such as formaldehyde and kill bacteria in the air.

Culture systems and methods of using same. The systems include a housing defining an inner space. The inner space includes a headspace and at least a portion of a reservoir. A surface for immobilizing cells is moveable between the headspace and the reservoir. The systems can be used for coculturing methanotrophs and phototrophs for processing biogas and wastewater, particularly from anaerobic digesters.

Culture systems and methods of using same. The systems include a housing defining an inner space. The inner space includes a headspace and at least a portion of a reservoir. A surface for immobilizing cells is moveable between the headspace and the reservoir. The systems can be used for coculturing methanotrophs and phototrophs for processing biogas and wastewater, particularly from anaerobic digesters.