A disinfection system includes at least one ozone generator; at least one ozone concentration level detector; programmable timer; at least one presence detector; at least one main system process management tool; at least one intermediate system process management tool. This invention aims not only to disinfect the air by removing unpleasant odour, but also to disinfect wastewater, premises and facilities by adjusting ozone concentration. Thus, not only the consequence of bad odour, which appears due to bacteria, protozoa, moulds and other fungi, but also the cause for occurrence of such bad odour is eliminated by exterminating viruses, bacteria, fungi, mould and all the main biogases within the disinfected environment. Modifications of this invention allow adjusting ozone concentration in order to disinfect premises and environment by avoiding possible hazardous ozone impact on people, working in the environments to be disinfected or residing near to such environments.

The present application provides a system for treating malodorous gas from sludge, which includes an air compressor, a first pressure swing adsorption tower, a second pressure swing adsorption tower, a buffer tank, a decomposition tank, an exhaust gas scrubber and a vacuum device. The present invention relates to a process for treating malodorous gas from sludge treatment, which includes several steps as follow: compressing the malodorous gas by using an air compressor, and adsorbing by using a pressure swing adsorbent. The air for removing the malodorous component is configured for sludge separation and aerobic aeration in the treatment tank. When the pressure swing adsorbent reaches the design upper limit value, the intake air is stopped, decompression and desorption start, and the enriched malodorous component is sent to catalytic combustion or photocatalytic decomposition, and then the acid gas in the tail gas is neutralized with an alkaline absorbent, and finally discharged to the standard. The treatment system in the present invention has the advantages of low processing cost, reduced malodor treatment volume, complete treatment of malodorous gas, and easy disposal of three wastes.

A built-in apparatus and method for treating air including a housing with an air inlet and an air outlet. An air mover positioned near the air outlet is configured to draw the air through the air inlet. The housing encloses an air treatment zone, such as including an oxidizing zone, and an ozone removal zone positioned downstream of the air treatment zone and oxidizing zone. The air treatment zone includes UV light and/or ozone that partially oxidizes the chemical contaminants in the air treatment zone. A catalyst in the oxidizing zone oxidizes elements within the air treatment zone. The ozone removal zone includes a second, different catalyst material. A UV bulb that may or may not generate ozone is positioned within or downstream of the first and/or second catalyst materials to assist catalyst oxidation and/or self-clean the apparatus.

An ultraviolet air sterilizer for disinfecting bacterium and virus includes a shell, a sandwich activated carbon cloth filter element, a nanometer titanium dioxide screen filter, an ultraviolet light source, a heat sinking kit, and a fan. The shell includes a shell body and a cover plate. The shell body is provided with an air inlet and an opening. The cover plate is provided with an air outlet. The sandwich activated carbon cloth filter element, the nanometer titanium dioxide screen filter, the heat sinking kit and the fan are arranged sequentially along an air path from the air inlet to the air outlet. The ultraviolet light source is configured for emitting ultraviolet light to the nanometer titanium dioxide screen filter. The air sterilizer has a compact small-sized structure and effectively removes ambient gaseous as well as particulate pollutants and kills micro-organisms harmful to health and well being.

A filter includes a filter medium having an average pore size of 1 to 5 mm, and photocatalyst particles deposited on the filter medium. The photocatalyst particle contains a titanium compound particle and a metal compound bonded to the surface of the titanium compound particle with an oxygen atom. The metal compound contains a metal atom and a hydrocarbon group. The titanium compound particle has absorption at wavelengths of 450 nm and 750 nm in the visible absorption spectrum of the titanium compound particle.

An air purification module and an air purifier formed thereof are revealed. An air purification module is a standardized module formed by an enclosing casing, at least one ultraviolet light emitting diode (UV LED) and at least one photocatalyst filter. While in use, the UV LED is electrically connected to the power source to emit UV light and drive the photocatalyst filter to be in an activated state for decomposition of bacteria, removal of odors and absorption of particulate pollutants in air flowing in, through and out of an axial air passage inside the enclosing casing. Thereby good air purification is achieved. The air purifier includes a housing with a number of air purification module mounted therein, corresponding fans, and at least one power unit. Thereby the use efficiency of the air purifier is increased and consumers have more choices.

A portable or handhold air cleaning system, whose air flow pipeline made of highly reflective and low absorptive material for UVC or UVB light acts also as a UV light waveguide, is invented. The system features a TEC cooled LED light source; air flow warm up mechanism; and UV light absorption/air cleaning enhancement device. The system is useful for travellers and office workers during flu and hay-fever seasons.

A wall attachment system is provided that includes an object to be mounted, and an attachment unit for attaching the object to be mounted to a wall surface. The object to be mounted has a back surface installed with a metal. The attachment unit has a front surface installed with a magnet. The wall attachment system is configured so that the metal and the magnet contact each other in response to the object to be mounted being set in position for installation on the attachment unit.

A vehicle includes a vehicle cabin, a filter configured to allow air blown toward the vehicle cabin to pass through the filter while adsorbing at least a portion of a substance contained in the air, a sensor configured to detect the state of the air passing through the filter, and a control device configured to output information relating to maintenance of the filter based on the result of detection performed by the sensor.

An air filter assembly for a bicycle is disclosed. The air filter assembly includes a body having a bracket and a frame. The bracket is configured to mount to a bicycle frame. The frame defines a tapered opening having a windward side and a leeward side. The tapered opening is larger on the windward side than on the leeward side. A removable air filter cartridge is mounted within the opening of the frame such that a force acting on the air filter cartridge on the windward side tends to wedge the air filter cartridge in the opening. A foam member is attached to an outer periphery of the air filter cartridge and is disposed between the air filter cartridge and the frame. The foam member is compressible so as to hold the air filter cartridge in the opening of the frame. The foam member compresses to a greater degree on the leeward side of the opening than on the windward side of the opening. The air filter assembly is mountable to a handle bar of a bicycle.