A harmful substance removal system and method include a direct contact liquid concentrator having a gas inlet, a gas outlet, a mixing chamber disposed between the gas inlet and the gas outlet, and a liquid inlet for importing liquid into the mixing chamber. Gas and liquid mixing in the are mixed chamber and a portion of the liquid is vaporized. A demister is disposed downstream of the mixing chamber. The demister includes at least one stage of mist elimination having a first filter that removes particles greater than 9 microns. A fan is coupled to the demister to assist gas flow through the mixing chamber.

A plant for concentrating a tartaric acid solution includes a first and a second evaporation unit arranged in series, a pump for feeding a diluted tartaric acid solution into the first evaporation unit, a barometric condenser placed downstream of the second evaporation unit, and a system for feeding a first low-temperature vapor into the first evaporation unit. A process for concentrating tartaric acid includes providing a plant according to the above description, performing a first concentration, by evaporation, of the diluted tartaric acid solution, inside the first evaporation unit, and performing a second concentration, by evaporation, of the partially concentrated tartaric acid solution from the first evaporation unit, inside the second evaporation unit. The plant and process for concentrating tartaric acid have the advantages of ensuring low energy consumption, allowing concentration of solutions tending to crystallization, and allowing the continuous measurement of the tartaric acid concentration to be concentrated.

A plant for concentrating a tartaric acid solution includes a first and a second evaporation unit arranged in series, a pump for feeding a diluted tartaric acid solution into the first evaporation unit, a barometric condenser placed downstream of the second evaporation unit, and a system for feeding a first low-temperature vapor into the first evaporation unit. A process for concentrating tartaric acid includes providing a plant according to the above description, performing a first concentration, by evaporation, of the diluted tartaric acid solution, inside the first evaporation unit, and performing a second concentration, by evaporation, of the partially concentrated tartaric acid solution from the first evaporation unit, inside the second evaporation unit. The plant and process for concentrating tartaric acid have the advantages of ensuring low energy consumption, allowing concentration of solutions tending to crystallization, and allowing the continuous measurement of the tartaric acid concentration to be concentrated.

The present disclosure relates to a system and to a method for calibrating Brix in a liquid, sap, syrup or taffy. The system comprises: a tank for receiving a volume of the liquid; a temperature reading apparatus for measuring a temperature of the liquid; a weighing apparatus for measuring a weight of the volume of liquid received in the tank; a volume measurement system for measuring the volume of the liquid received in the tank; an evaporator comprising a plurality of water injectors for spraying water, and a computer operatively connected to the apparatuses and using the data received from the same to calibrate the Brix in the liquid. The method comprises providing the Brix calibrating system; measuring the Brix, temperature, weight, volume, and determining the Brix measurement based on the data received and using the computer to adjust the Brix by actioning the evaporator or the water injectors.

The present disclosure relates to a system and to a method for calibrating Brix in a liquid, sap, syrup or taffy. The system comprises: a tank for receiving a volume of the liquid; a temperature reading apparatus for measuring a temperature of the liquid; a weighing apparatus for measuring a weight of the volume of liquid received in the tank; a volume measurement system for measuring the volume of the liquid received in the tank; an evaporator comprising a plurality of water injectors for spraying water, and a computer operatively connected to the apparatuses and using the data received from the same to calibrate the Brix in the liquid. The method comprises providing the Brix calibrating system; measuring the Brix, temperature, weight, volume, and determining the Brix measurement based on the data received and using the computer to adjust the Brix by actioning the evaporator or the water injectors.

A bottom chamber of a stripper (or bottom liquid holder) including a vortex breaker, a blocking plate and a guiding plate. A stripper, a urea HP stripper, a urea plant, a method for operating a stripper and a method for producing a solid, particulate urea-based composition.

A bottom chamber of a stripper (or bottom liquid holder) including a vortex breaker, a blocking plate and a guiding plate. A stripper, a urea HP stripper, a urea plant, a method for operating a stripper and a method for producing a solid, particulate urea-based composition.

The present disclosure relates to the technical field of wastewater treatment, and provides a wastewater treatment method and apparatus based on hydrate-based water vapor adsorption. The apparatus includes a wastewater evaporation zone, a hydrate formation zone, a hydrate decomposition zone, and a data acquisition and control system. Rising water vapor and condensed water formed during evaporation of wastewater at normal temperature react with a hydrate former on a cooling wall surface to form a hydrate, continuous evaporation of the wastewater is promoted, the hydrate is scraped off to a collecting zone below by a scraper after being formed, and the hydrate is decomposed into fresh water, thereby realizing wastewater treatment. The present disclosure provides a method for treating complex wastewater containing a plurality of pollutants, where water vapor is consumed to form the hydrate to promote wastewater evaporation, and water obtained from the decomposition does not contain pollutants theoretically.

The present disclosure relates to the technical field of wastewater treatment, and provides a wastewater treatment method and apparatus based on hydrate-based water vapor adsorption. The apparatus includes a wastewater evaporation zone, a hydrate formation zone, a hydrate decomposition zone, and a data acquisition and control system. Rising water vapor and condensed water formed during evaporation of wastewater at normal temperature react with a hydrate former on a cooling wall surface to form a hydrate, continuous evaporation of the wastewater is promoted, the hydrate is scraped off to a collecting zone below by a scraper after being formed, and the hydrate is decomposed into fresh water, thereby realizing wastewater treatment. The present disclosure provides a method for treating complex wastewater containing a plurality of pollutants, where water vapor is consumed to form the hydrate to promote wastewater evaporation, and water obtained from the decomposition does not contain pollutants theoretically.

There is provided a system and process for concentrating Brix in a liquid using a bimodal vacuum and pressurized falling film evaporator for producing concentrated nectar and/or concentrated syrup products, wherein in the vacuum mode the system produces concentrated nectar having a Brix of 60 to 70%, and wherein the pressurized mode, the system produces concentrated syrup having a Brix of 66 to 67%.