An acid purifier, comprising: a container (1) for an acid to be purified; a heater (2); a condenser (3) including a Peltier semiconductor cooler, a condenser body (600) and a refrigerant temperature sensor; a purified acid liquid collection bottle (4) connected with the condenser; a controller; an integrated liquid level control component (300) for the acid to be purified, connected with the container (1) for the acid to be purified, and arranged in such a way that a liquid level pipe (320), a liquid adding funnel (310) and a waste liquid discharge valve (330) are integrated; and an acid liquid temperature sensor (400, 500) arranged in the acid to be purified.

Systems and processes capable of cooling gases, liquids, and solids without requiring the use of conventional refrigerants. Such a system or process for cooling a process fluid involves a passive cooling device that receives the process fluid from a reservoir and cools the process fluid by thermal conduction to a heat sink, an active cooling device that receives the process fluid from the passive cooling device and cools the process fluid with a coolant cooled by at least one thermoelectric device, and a housing that encloses the passive and active cooling devices and serves as the heat sink for the passive cooling device.

Systems and methods are disclosed which enable an atmospheric water generator to measure a variety of water quality parameters throughout its subsystems and conduits, and implement corresponding response protocols when the measurements deviate from their normal ranges. The ranges may be reprogrammable locally at the generator or remotely from the generator. The response protocols may include self-cleaning regimes to help quickly and efficiently bring deviant measurements back into their normal ranges. Generator notification, alarm and shutdown protocols may be implemented when the measurements reach unsafe values, in order to protect the consumer and ensure their ongoing confidence in the quality of the water dispensed from the generator. Subsystems are also described which improve the operational efficiency of the generator, keep the cold dispensing line clear of bacteria, and maximize the useful life of UV bulbs within the water collection and cold storage tanks.

A water treatment plant, having at least one storage container for storing water to be treated, an evaporator for evaporating the water to be treated, a condenser for condensing the water evaporated in the evaporator, the condenser being fed on the cooling water side with water to be treated, which is flowing to the evaporator. The storage container is arranged above the evaporator, and the condenser is arranged at the level of the base of the evaporator, the storage container being closable in an airtight manner and opening with an outlet into an overflow pot, the surface height of which is arranged slightly below a vapor outlet of the evaporator. The overflow pot is connected to the cooling water inlet of the condenser. A cooling water outlet of the condenser is connected to an inlet of the evaporator.

A wirelessly controlled device for atmospheric water generation is provided. The device comprises an atmospheric water generator for generating filtered potable water and a wireless external control system. The wireless external control system comprises one or more display presentation pages for displaying a plurality of operating parameters for the atmospheric water generator, including content display with a variety of operation parameters and historical water collection data for operation of the atmospheric water generator. The wireless external control also has one or more display pages configured for user input for a user to select one or more water generation parameters for operation of the atmospheric water generator. Once the device is directed by the wireless external control system to generate water, the device is capable of automatic water generation until the device fulfills the one or more set water generation parameters.

A methane destruction apparatus for capturing and converting fugitive methane gas emissions into carbon dioxide and water comprises a methane-capturing module for capturing the fugitive methane gas emissions and a methane conversion module for receiving captured methane from the methane-capturing module. The methane-capturing module includes a fugitive methane gas emission intake connected to an emissions line having a backpressure equal to 1 to 3 inches of water (249 to 746 Pa), a natural gas feed for feeding natural gas into the methane-capturing module, may include a relief vent for preventing overpressure within the methane-capturing module and a drain for draining liquids that have condensed within the methane-capturing module. The methane conversion module includes a conversion pad for catalytically converting the captured methane into carbon dioxide and water, a water vapour opening for outputting the water and a carbon dioxide opening for outputting the carbon dioxide.

An on-line measurement system for aerosol precursors emitted from industrial sources has three parts: online measurement part, pipeline cleaning part and automatic control part. The system includes: a particulate filter, high temperature intake pipe, two detergent tanks, an air pump, a cooling water pump, two detergent pumps, a condenser, an impinger, a cooling water meter, a salinity meter, a liquid flow meter, a gas flow meter, nitrogen cylinders, connecting pipes, control valves, computer control program etc. The aerosol precursor concentration Cg emitted from industrial sources is measured in the online measurement section. After every measurement, the pipeline is cleaned by the pipeline cleaning part to remove organic and inorganic residual. The automatic control part is controlled by the computer through a controlling program to control the working process of the system. The system has small area occupation, low investment cost, simple maintenance, convenient transformation and high applicability.

Saline water from a body of water is desalinated using a water purification system. Chambers of a plurality of tanks are filled with a volume of saline water. The saline water is heated to increase a pressure and produce water vapor within the chamber of each tank. A condensation valve disposed within a condensing tube is moved to an open position such that the water vapor is released into a respective condensing tube. The water vapor is condensed to provide potable water.

A method for removing a foulant from a heat exchanger is disclosed. A process fluid, comprising a process liquid and a fouling component, are provided to a process side of the heat exchanger. A flow of a coolant to the coolant side is provided by opening an inlet to the coolant side. The process fluid is cooled, a portion of the fouling component desublimating, crystallizing, freezing, condensing coupled with solidifying, or a combination thereof as a first portion of the foulant onto an outer surface of the coolant side. The inlet to the coolant side is periodically closed such that the flow of the coolant slows or stops, warming the process side, and causing the first portion of the foulant to sublimate, melt, absorb, or a combination thereof off the outer surface of the coolant side. The process then returns to the providing the flow of the coolant step.

Methods and systems for recovering nitrogen and alkenes (e.g. ethylene, propylene) from process gas streams, including multi-step condensing of the process gas stream, are provided herein.