Abstract: The present disclosure relates to a field of optical module technology, and in particular to a monitoring indication system of an optical module. The monitoring indication system of the optical module includes a optical module and a monitoring indication system. The optical module includes a housing, a circuit board arranged in the housing, and an unlocking pull handle arranged on a rear end of the housing. The monitoring indication system includes a monitoring unit arranged on the circuit board, an indicator light connected with the monitoring unit, and a display portion arranged on the unlocking pull handle. The display portion is communicated with the indicator light. The monitoring unit obtains a working state or an abnormal state of the optical module, and generates a corresponding indication signal. The indicator light performs a corresponding light-emitting operation according to the indication signal, and transmits outwards from the display portion.

Abstract: A method which uses a process reactor having three separate reaction stages to remove high concentrations of heavy metals from acidic wastewater and chemical solutions. During each of three stages the pH level of the wastewater is increased and sludge and flocculate organic and metal hydrocyl matters are removed from the wastewater to provide clean water which is discharged in to a sewer system.

Abstract: An apparatus which uses a process reactor having three separate reaction stages to remove high concentrations of 3000 mg/l heavy metals from acidic wastewater and chemical solutions. During each of three stages the pH level of the wastewater is increased and sludge and flocculate organic and metal hydroxyl matters are removed from the wastewater to provide clean water which is discharged in to a sewer system.

Abstract: A method and apparatus for removing volatile contaminants, such as VOCs, from water or other supplies of liquid. In one embodiment of the invention, a gas is sparged through a helical flow of liquid to strip away contaminants. The flowrate of the helical flow of liquid and the flowrate of the gas are held at an optimum ratio to maintain flow stability and maximize stripping efficiency. In another embodiment of the invention, the liquid is processed through a series of stripping stages until volatile contaminants are stripped to a desired level. A portion of the liquid is recycled within each stage, while a system flow of liquid passed from one stage to the next. The flowrate of the recycled flow and the flowrate of the system flow have a ratio that provides improved system capacity while ensuring proper volatile removal.

Abstract: A method and apparatus for removing volatile contaminants, such as methyl tertbutyl ether (MTBE), from water or other supplies of liquid. In one embodiment of the invention, a gas is sparged through a helical flow of liquid to strip away contaminants. The flowrate of the helical flow of liquid and the flowrate of the gas are held at an optimum ratio to maintain flow stability and maximize stripping efficiency. In another embodiment of the invention, the liquid is processed through a series of stripping stages until volatile contaminants are stripped to a desired level. A portion of the liquid is recycled within each stage, while a system flow of liquid passed from one stage to the next. The flowrate of the recycled flow and the flowrate of the system flow have a ratio that provides improved system capacity while ensuring proper volatile removal.

Abstract: A method and apparatus for removing volatile contaminants, such as methyl tertbutyl ether (MTBE), from water or other supplies of liquid. In one embodiment of the invention, a gas is sparged through a helical flow of liquid to strip away contaminants. The flowrate of the helical flow of liquid and the flowrate of the gas are held at an optimum ratio to maintain flow stability and maximize stripping efficiency. In another embodiment of the invention, the liquid is processed through a series of stripping stages until volatile contaminants are stripped to a desired level. A portion of the liquid is recycled within each stage, while a system flow of liquid passed from one stage to the next. The flowrate of the recycled flow and the flowrate of the system flow have a ratio that provides improved system capacity while ensuring proper volatile removal.

Abstract: A froth flotation method is disclosed for separating fine particles of fossil resin from by use of frothing reagents which include an aliphatic organic compound having a polar group and containing not more than four carbon atoms. Butanol is an effective frothing reagent in this method.

Abstract: disclosed is a process for separating resin from a mixture of resin-bearing coal particles by increasing the pH of a froth flotation process to a value of at least 12. Particles of reduced size resin-bearing coal are preferably mixed with water to from a slurry. The pH of the slurry is then adjusted with a chemical agent to about 12. The slurry is then subjected to froth flotation. The coal particles aggregate to one another allowing the remaining resin-rich particles to attach to the bubbles formed during the flotation process. A much improved separation efficiency for resin flotation from coal is observed.

Abstract: The present invention is directed to air sparged hydrocyclone flotation apparatus and methods for separating particles from particulate suspensions (such as coal and mineral ore slurries), wherein fluid discharge is removed annularly from a flotation vessel. Preferably, the flotation apparatus includes a vertically oriented cylindrical flotation vessel having a tangential inlet at its upper end and an annular outlet at its lower end. The annular outlet allows for the smooth exit of fluid discharge from the flotation vessel so as to avoid disturbance of the fluid flow within the flotation vessel. Air is sparged into the vessel and a froth which contains the recovery products exits through a vortex finder positioned in the upper end of the vessel. The apparatus includes a froth pedestal positioned within the vessel which forms the annular outlet with the wall of the vessel. The froth pedestal may take a generally cylindrical or a generally conical configuration.

Abstract: Disclosed is a process for separating resin from reduced size resin-bearing coal particles by treating the particles with ozone. Particles of reduced size resin-bearing coal are preferably mixed with water to form a slurry. The slurry is then treated with ozone for a short length of time. The slurry is then subjected to froth flotation. The ozone selectively oxidizes the coal, decreasing its hydrophobicity causing the relatively more hydrophobic resin to attach to the bubbles formed during the flotation process. A much improved separation efficiency for resin flotation from coal is observed.