Methods and Apparatus for Rejecting Moisture from a Desiccant Solution A method of rejecting moisture from a working desiccant solution and regenerating the working desiccant solution comprises receiving a stream of desiccant solution containing moisture to be rejected (12), and diluting at least a portion of the stream of desiccant solution containing moisture to be rejected, to form a diluted stream (38). The method further comprises passing the diluted stream (38) through an evaporator (24) for evaporating the moisture from the diluted stream; concentrating the desiccant solution, thereby to regenerate the desiccant solution; and outputting a regenerated stream of desiccant solution (14).

A method of sulfur enriching an acid gas stream in an acid gas enrichment system includes: (i) feeding an acid gas stream to a contactor, the acid gas stream comprising hydrogen sulfide (H2S), carbon dioxide (CO2), and hydrocarbons; (ii) separating the acid gas stream in the contactor to create a carbon dioxide rich stream and a purified acid gas stream; (iii) feeding the purified acid gas stream to a regenerator fluidly connected to the contactor; (iv) separating the purified acid gas stream in the regenerator to create a hydrogen sulfide rich stream and a hydrogen sulfide lean stream, the hydrogen sulfide rich stream having a concentration of hydrogen sulfide; and (v) periodically feeding at least a portion of the hydrogen sulfide rich stream exiting the regenerator to the acid gas stream entering the contactor.

The present disclosure relates, in part, to enhanced weathering systems and/or apparatuses and methods of use thereof. In one aspect, the present disclosure provides a method of at least partially sequestering CO.sub.2 from an influent aqueous solution comprising aqueous and/or gaseous CO.sub.2. In another aspect, the present disclosure provides a method of at least partially sequestering CO.sub.2 from a gaseous CO.sub.2 source. In another aspect, the present disclosure provides systems and/or apparatuses suitable for use in the methods described herein. In another aspect, the present disclosure provides a method of optimizing the design and operation of a system for at least partial sequestration of CO.sub.2 from a water source.

A selective desulfurization method implemented based on a high gravity reactor is provided, in the technical field of desulfurization separation. The selective desulfurization method includes the following steps: driving the packed bed to rotate through the driving device; introducing feed gas containing hydrogen sulfide into the reactor through the air inlet, and enabling the feed gas to enter the packed bed and move along a direction from a outer packing area of multiple areas to an inner packing area of the multiple of packing areas; introducing a desulfurizer into the packed bed through the liquid inlet, and enabling the desulfurizer to move along a direction from the inner packing area to the outer packing area under an action of centrifugal force. Deflectors can change the flow direction of the desulfurizer liquid after passing through the inner packing area.

A human load of regularly measuring a pH of a position 4 meters from a discharge point during a term of a commissioning of a ship with a scrubber apparatus is reduced. Provided is an apparatus provided inside a ship having a scrubber, including a first pH measuring instrument which measures a pH value of washing water discharged from the scrubber to outboard, a second pH measuring instrument which measures a pH value of washing water supplied from outboard to the scrubber, and a calculating unit which calculates a pH value of water at a predetermined position outboard, based on a dilution ratio which shows a ratio by which the washing water discharged to outboard is diluted at the predetermined position outboard, the pH value measured by the first pH measuring instrument, and the pH value measured by the second pH measuring instrument.

A CO.sub.2 recovery unit and a CO.sub.2 recovery method capable of having an excellent CO.sub.2 absorption rate and saving energy are provided. A CO.sub.2 recovery unit of the invention includes: a CO.sub.2 absorber which includes an upper CO.sub.2 absorption unit obtaining a CO.sub.2 absorbent by causing a flue gas containing CO.sub.2 to contact a CO.sub.2 absorbent and a lower CO.sub.2 absorption unit obtaining a CO.sub.2 absorbent by causing the CO.sub.2 absorbent to contact a flue gas containing CO.sub.2; a CO.sub.2 absorbent regenerator which obtains the CO.sub.2 absorbent by heating the CO.sub.2 absorbent a thermometer which measures a temperature of the CO.sub.2 absorbent supplied from the CO.sub.2 absorber to the CO.sub.2 absorbent regenerator; and a control device which controls a temperature of the CO.sub.2 absorbent supplied to the lower CO.sub.2 absorption unit based on the temperature of the CO.sub.2 absorbent measured by the thermometer.

A substrate processing apparatus includes a processing unit supplying at least one of a plurality of types of chemical liquids to a substrate and a scrubber cleaning an exhaust by bringing the exhaust in contact with a scrubbing liquid. The scrubber includes an exhaust passage that guides the exhaust, generated at the processing unit and containing the chemical liquid, toward an exhaust equipment disposed outside the substrate processing apparatus and a discharger that is able to discharge each of a plurality of types of scrubbing liquids that clean the exhaust individually inside the exhaust passage. A controller selects any one of the plurality of types of scrubbing liquids based on the type of chemical liquid contained in the exhaust and makes the selected scrubbing liquid be discharged from the discharger.

Disclosed is an air purifier, which comprises a shell with an air inlet and an air outlet, an ecological purification system with a flowerpot assembly, a microorganism box and a water tank arranged in sequence, a filtering system, and a control system for carrying out control. The water of the ecological purification system flows through the filtering system to bring dust and VOCs adsorbed by the filtering system into the ecological purification system for purification. The flowerpot assembly comprises a flowerpot. The water of the water tank enters the flowerpot via a water inlet, and when the water level is higher than a water outlet, the water flows through the microorganism box and then enters the water tank, so as to form the water circulation. The air purifier is simple in structure, easy to operate and low in cost, and has a high purification efficiency for air pollutants, especially VOCs.

Various embodiments of a portable carbon dioxide (CO2) absorption device that may remove excess CO2 from a closed environment are disclosed herein. The absorption device is reusable and configured for many environments.

A CO.sub.2 recovery apparatus is provided with: a CO.sub.2 absorption tower for bringing exhaust gas into contact with a CO.sub.2 absorbing liquid and making the CO.sub.2 absorbing liquid absorb the CO.sub.2 contained in the exhaust gas; a CO.sub.2 absorbing liquid regeneration tower for heating the CO.sub.2 absorbing liquid with steam and releasing CO.sub.2 from the CO.sub.2 absorbing liquid and regenerating the CO.sub.2 absorbing liquid; a flowmeter for determining the flow rates of the exhaust gas introduced into the CO.sub.2 absorption tower; and a control unit for classifying the flow rates of the exhaust gas into multiple flow rate ranges, and controlling the flow rate of the CO.sub.2 absorbing liquid supplied to the CO.sub.2 absorption tower and the flow rate of steam supplied to the CO.sub.2 absorbing liquid regeneration tower on the basis of prescribed set load values which have been previously established in accordance with the multiple flow rate ranges.