Abstract: An aqueous stream cleaning system including a circulation pump to receive a waste fluid and/or a concentrated liquid bottoms stream, and expel a circulation stream. The aqueous stream cleaning system can also include a primary heat exchanger to receive the circulation stream from the circulation pump. The primary heat exchanger can have a plurality of heat exchange plates that define an internal surface area for heat transfer from a distillate stream to the circulation stream to produce a cooled distillate stream and a heated circulation stream. The plurality of heat exchange plates can be spaced to facilitate free flow of solids in the circulation stream between the plurality of heat exchange plates. A mass flow rate and pressure of the circulation stream can be configured to minimize build-up of solids in the primary heat exchanger. The aqueous stream cleaning system can further include an evaporation unit to receive the heated circulation stream from the primary heat exchanger.

Abstract: An aqueous stream cleaning system including a circulation pump to receive a waste fluid and/or a concentrated liquid bottoms stream, and expel a circulation stream. The aqueous stream cleaning system can also include a primary heat exchanger to receive the circulation stream from the circulation pump. The primary heat exchanger can have a plurality of heat exchange plates that define an internal surface area for heat transfer from a distillate stream to the circulation stream to produce a cooled distillate stream and a heated circulation stream. The plurality of heat exchange plates can be spaced to facilitate free flow of solids in the circulation stream between the plurality of heat exchange plates. A mass flow rate and pressure of the circulation stream can be configured to minimize build-up of solids in the primary heat exchanger. The aqueous stream cleaning system can further include an evaporation unit to receive the heated circulation stream from the primary heat exchanger.

Abstract: A system for treating a biologically contaminated water stream to lyse pathogens within the biologically contaminated water stream is provided. The system can include a flash vessel configured to receive a biologically contaminated water stream and to separate steam from liquid in the biologically contaminated water stream, a blower configured to receive the separated steam from the flash vessel and compress the separated steam for reintroduction into the biologically contaminated water stream, a circulation pump configured to receive the separated liquid from the flash vessel and to pressurize the separated liquid into a circulation stream, a preheater exchanger configured to receive treated water from the circulation stream and preheat the biologically contaminated water stream, and a pressure drop device configured to lower the pressure of the biologically contaminated water stream prior to receipt by the flash vessel.

Abstract: An aqueous stream cleaning system including a circulation pump to receive a waste fluid and/or a concentrated liquid bottoms stream, and expel a circulation stream. The aqueous stream cleaning system can also include a primary heat exchanger to receive the circulation stream from the circulation pump. The primary heat exchanger can have a plurality of heat exchange plates that define an internal surface area for heat transfer from a distillate stream to the circulation stream to produce a cooled distillate stream and a heated circulation stream. The plurality of heat exchange plates can be spaced to facilitate free flow of solids in the circulation stream between the plurality of heat exchange plates. A mass flow rate and pressure of the circulation stream can be configured to minimize build-up of solids in the primary heat exchanger. The aqueous stream cleaning system can further include an evaporation unit to receive the heated circulation stream from the primary heat exchanger.

Abstract: A system and method are disclosed for providing aqueous stream purification services. The system includes at least one separation unit. Each separation unit may include a mechanical vapor recompression separator, a steam stripper, and a secondary recovery heat exchanger. The system for wastewater purification may receive water from a waste water storage, purify the water, and return the purified water to a purified water storage. The system may include a controller. The controller may include an operating conditions module configured to interpret at least one operating condition.

Abstract: A system and method are disclosed for purifying a waste fluid stream. The system includes a recirculation pump having an inlet for a recirculation stream and an outlet to expel a pressurized stream. The system includes a compressor having an inlet for an evaporation stream and an outlet for a pressurized evaporation stream. A primary heat exchanger has inlets for the pressurized stream and the pressurized evaporation stream, an internal surface area for heat transfer from the evaporation stream to the pressurized stream, and outlets for a cooled product stream and a heated pressurized stream. The heated pressurized stream is formed by heating the pressurized stream and the cooled product stream is formed by cooling the evaporation stream. The system includes an evaporation unit having an inlet for the heated pressurized stream and outlets for an evaporation stream and the recycled liquid bottoms stream.

Abstract: A system and method are disclosed for providing aqueous stream purification services. The system includes at least one separation unit. Each separation unit may include a mechanical vapor recompression separator, a steam stripper, and a secondary recovery heat exchanger. The system for wastewater purification may receive water from a waste water storage, purify the water, and return the purified water to a purified water storage. The system may include a controller. The controller may include an operating conditions module configured to interpret at least one operating condition.

Abstract: A system and method are disclosed for purifying a waste fluid stream. The system includes a recirculation pump having an inlet for a recirculation stream and an outlet to expel a pressurized stream. The system includes a compressor having an inlet for an evaporation stream and an outlet for a pressurized evaporation stream. A primary heat exchanger has inlets for the pressurized stream and the pressurized evaporation stream, an internal surface area for heat transfer from the evaporation stream to the pressurized stream, and outlets for a cooled product stream and a heated pressurized stream. The heated pressurized stream is formed by heating the pressurized stream and the cooled product stream is formed by cooling the evaporation stream. The system includes an evaporation unit having an inlet for the heated pressurized stream and outlets for an evaporation stream and the recycled liquid bottoms stream.

Abstract: An improved design of a vapor compression distiller which makes use of a rapid, highly turbulent flow through the heat-of-evaporation recovery, or primary, heat exchanger. The distiller may also include the use of turbulators to increase turbulence and mixing within the primary heat exchanger. The increased level of turbulence and mixing dramatically reduces fouling inside the primary heat exchanger and increases the heat transfer efficiency. The improvements in the distiller are maximized by recirculating the liquid to be evaporated at a high multiple of the flow rate of the liquid feed to the distiller. The distiller may also include a feed circulation loop with a secondary heat exchanger to increase the efficiency of heat-of-evaporation recovery in the evaporation/condensation cycle. Applications of the vapor compression distiller include purification of waste liquids, concentration of dilute liquid mixtures, and separation of liquid/liquid, liquid/gas, and liquid/solid mixtures.

Abstract: This disclosure concerns a composition and process for separating solids from an oil and water mixture. The composition comprises lime and calcined perlite of a size distribution such than 0-5% is retained on 30 mesh, 45-65% is retained on 50 mesh, 80-90% is retained on 100 mesh and 90-100% is retained on 200 mesh screens. The process is particularly applicable to separating solids from an oily sludge to produce a recoverable oil product and a non-leaching filter cake which is environmentally acceptable.