Abstract: This invention relates to a diffuser for an aeration system, including a base, a diaphragm and a valve member attached to the diaphragm. The base is provided with a valve seat for engaging with the valve member to close the inlet of the aerating gas. Furthermore, the diaphragm includes a central portion, a peripheral portion attached to the periphery of the base, and a surrounding web segment interposed therebetween. The surrounding web segment includes a plurality of fibrous filaments which are arranged to form a textured structure with a plurality of pores of a dimension such that the aerating gas, when introduced, is permitted to be bubbled through the plurality of pores, so as to form fine and small bubbles in the water.

Abstract: This invention relates to a diffuser for an aeration system, comprising a base, a diaphragm and a valve member attached to the diaphragm. The base is provided with a valve seat for engaging with the valve member to close the inlet of the aerating gas. Furthermore, the diaphragm includes a central portion, a peripheral portion attached to the periphery of the base, and a surrounding web segment interposed therebetween. The surrounding web segment includes a plurality of fibrous filaments which are arranged to form a textured structure with a plurality of pores of a dimension such that the aerating gas, when introduced, is permitted to be bubbled through said plurality of pores, so as to form fine and small bubbles in the water.

Abstract: A hemorrhoid pad includes a folded laminated body having a folded end and two opposite folded halves diverging from the folded end. Each of the folded halves of the folded laminated body has inner and outer surfaces. The inner surfaces of the folded halves have a release agent coated thereon and face toward each other.

Abstract: A wastewater treating system includes: a vessel defining a vessel space therein, the vessel space being partitioned into an activated sludge zone that is adapted to receive waste water and a body of an activated sludge therein, and a coarse filtering zone that is disposed downstream of and that is in fluid communication with the activated sludge zone for receiving bio-treated wastewater from the activated sludge zone; and a bed of biomass carriers colonized with microorganisms and disposed in the coarse filtering zone for further bio-treating the bio-treated wastewater from the activated sludge zone and for separating coarse suspended solids from the bio-treated wastewater in the coarse filtering zone.

Abstract: A composite fiber includes: a first fiber component made from a first organic polymer, and a second fiber component made from a second organic polymer and particulate photocatalyst, such as titanium oxide. The first and second organic polymers are independently selected from polyester, polycarbonate, polyamide, polyolefin, polyacrylate, polyvinyl alcohol, polyethylene chloride, polyethylene fluoride, polystyrene, and combinations thereof.

Abstract: A fluid cleaning system includes: a reactor unit for receiving a fluid body to be processed; a photocatalyst unit disposed in the reactor unit to contact the fluid body and including composite fibers, the composite fibers including a first fiber component made from a first organic polymer, and a second fiber component made from a second organic polymer and particulate photocatalyst; and a light unit. A method for cleaning a fluid includes: preparing composite fibers having a length ranging from 1 to 80 mm and including a first fiber component made from a first organic polymer, and a second fiber component made from a second organic polymer and particulate photocatalyst; adding the composite fibers in a fluid body in a reactor unit such that the composite fibers are freely suspended in the fluid body; and irradiating the suspended composite fibers in the fluid body in the reactor unit.

Abstract: A method for treating a contaminated fluid includes: preparing biomass-carrier pieces made from a fiber component selected from a non-woven fabric, a fiber bundle assembly, a bulky fiber bundle assembly, a woven fabric, and a braided strap; and mixing the biomass-carrier pieces with the contaminated fluid, so as to remove the contaminated parts of the contaminated fluid. A system for treating a contaminated fluid, and a method for making a biomass carrier suitable for treating a contaminated fluid are also disclosed. The biomass carrier thus made has a minimum thickness region at a bonding line, so as to reinforce the structure of the biomass carrier, and a loose region surrounding the minimum thickness region, so as to improve attachment of microorganisms thereon and facilitate immersion into water.

Abstract: A moist paper towel package includes a bag body and a cover sheet. The bag body includes a top wall formed with a tear-off seam defining a pull tab precursor. The cover sheet has one side which is provided with an adhesive layer and which is adhered to the top wall. The cover sheet covers entirely the pull tab precursor and the tear-off seam and covers a portion of the top wall surrounding the pull tab precursor. The tear-off seam is tearable to form the pull tab precursor into a pull tab when a portion of the cover sheet is pulled away from the top wall.

Abstract: A moist paper towel package includes a stack of moist paper towels, a bag body, a cover member, a layer of releasable adhesive, and a membrane. The moist paper towels contain cleansing solution. The bag body has a top wall formed with an opening. The top wall further has an outer surface, an inner surface, and an adhering region on the outer surface around the opening. The membrane is adhered removably on the inner surface of the top wall so as to isolate the moist paper towels from the adhering region and so as to prevent the cleansing solution from damaging the releasable adhesive.

Abstract: A process for producing a multi-layered non-woven fabric includes: (a) forming a plurality of non-woven fabric layers from a plurality of filament materials which are produced respectively from a plurality of spinning devices disposed along an advancing forming screen; (b) forming at least one of the filament materials as a composite filament material which includes at least two filament components having high and low melting points by means of one of the spinning devices; and (c) depositing the filament materials on the advancing forming screen one over the other to form a plurality of non-woven fabric layers. An apparatus to carry out the process, and a multi-layered non-woven fabric produced thereby are also disclosed.

Abstract: The present invention provides a process for producing a carded and air-laid non-woven composite fabric. First, a fiber is subjected to carding treatment through a carding machine to form a carded web. Then, a fiber, powder, or particulate material is subjected to air-laying through an air-laying device to form an air-laid web. The sequence of carding and air-laying steps can be exchanged, and the carding machine and the air-laying device are disposed on the same production line. Finally, the above webs are consolidated into a non-woven composite fabric. In the present invention, since carding and air-laying are conducted on the same production line, the procedure for producing air-laid webs off-line can be omitted. Therefore, the thermoplastic polymer amount added to increase the web strength can be decreased, thus decreasing the production cost.

Abstract: A method for determining an electrostatic force present in a flat object, includes: (a) positioning the object on a flat support; (b) providing a series of testing membranes which are substantially free of electrostatic charges and have different standarized weights; (c) placing on the surface of the object one of the testing membranes and turning the support to an inclined position relative to a horizontal plane; (d) repeating step (c) with the other ones of the testing membranes; (e) examining which one of the testing membranes slides relative to the object after the support is inclined, and determining the smallest weight among the standarized weights, that permits a sliding movement between the testing membranes and the object, and the largest weight among the standarized weights, that prevents the sliding movement; and (f) evaluating the electrostatic force as a function of the largest weight and the smallest weight. An apparatus for carrying out the process is also disclosed.

Abstract: The invention relates to a high molecular absorbent sheet manufacturing process and the related equipment for employing such manufacturing process. The process includes a step of sending a paper pulp and a high molecular absorbent compound to a trough for mixing by wired cylinders and spreading over a conveyer system, a step of drying the mixture carried on the conveyer system, and a step of squeezing the dried mixture into a roll of high molecular absorbent sheet through two matched hot impression cylinders. A sheet of thermoplastic mesh fabric may be respectively covered on the mixture on two opposite sides before the process of drying.