Abstract: A treatment system for removing a plurality of pollutants from wastewater includes a removal device for removing a plurality of gross solids from the wastewater, an aeration device for reducing a biochemical oxygen demand (BOD) and a chemical oxygen demand (COD) of the wastewater and a bioreactor containing a bacterial biofilm, said bioreactor including a plurality of cells configured for operation on a predetermined drain fill cycle.

Abstract: A process to load a fibrous slurry with a filler, in particular with calcium carbonate (fiber loading). The loaded fibrous slurry is divided into at least two fractions, a light fraction and a heavy fraction, for which purpose hydrocyclones are used in one embodiment. In this case, the different fractions have a different level of loading, that is to say the quantity of precipitated fillers adhering to the fibers is different in each case. There is the possibility of feeding the less highly loaded fibers back into the loading process, in order to increase the level of loading of this fraction further.

Abstract: A method of continuously loading fibers in a fiber suspension with calcium carbonate. The fibers include a fiber wall surrounding a lumen. A reactant solid in the form of calcium oxide and/or calcium hydroxide is mixed into the fiber suspension with a resultant initial process pH of between 11 and 12. The fiber suspension is transported at a consistency of between approximately 15 and 30% into an inner chamber of a closed reactor. A reactant gas is injected into the reactor, whereby the reactor is pressurized to a pressure between 5 and 150 psi. A temperature of the fiber suspension within the reactor is controlled at a range between ?10° C. and 80° C. The fibers within the fiber suspension are loaded with calcium carbonate as a result of a chemical reaction between the reactant solid and the reactant gas in the reactor over a predetermined reaction time.

Abstract: The present invention relates to a method and a device for loading a fibrous stock suspension including a plurality of cellulose fibers with calcium carbonate. The method includes adding calcium hydroxide in liquid or dry form and/or calcium oxide into the fibrous stock suspension, adding carbon dioxide into the fibrous stock suspension, and precipitating calcium carbonate from calcium hydroxide through carbon dioxide in a pressurized vessel.

Abstract: A method of loading a fibrous stock suspension containing chemical pulp fibers with calcium carbonate including the steps of: adding one of calcium oxide and calcium hydroxide in one of a liquid form and a dry form into the fibrous stock suspension; adding gaseous carbon dioxide into the fibrous stock suspension; precipitating of the calcium carbonate through said carbon dioxide; and refining of the fibrous stock suspension during said precipitating step.

Abstract: SC paper which is produced from a fibrous stock suspension containing fibers which are partially loaded with ash is characterized in that the ash content in the SC fiber web which was produced from the fibrous stock suspension is higher than 35%, preferably higher than 39%. Newsprint which is produced from a fibrous stock suspension containing fibers which are partially loaded with ash is characterized in that the ash content in the newsprint fiber web which was produced from the fibrous stock suspension is higher than 15%, preferably higher than 19%. Wood-free, uncoated paper which is produced from a fibrous stock suspension containing fibers which are partially loaded with ash is characterized in that the ash content of the wood-free, uncoated fiber web which was produced from the fibrous stock suspension is higher than 15%, preferably higher than 19%.

Abstract: The present invention relates to a method and a paper machine for producing a calendered paper web. The method includes the step of partially loading with ash a plurality of fibers of a fibrous stock suspension. The paper machine for the production of a calendered paper web from a fibrous stock suspension including a plurality of fibers which are partially loaded with ash includes a first device for loading a fibrous stock suspension with ash. The first device can include a first static mixer, a preparation unit for adding calcium oxide or calcium hydroxide, a press or a dewatering screw, an equalizing reactor or an equalizing screw, a container serving as a crystallizer, a second static mixer, and a carbon dioxide storage tank or a second device for recovering carbon dioxide.

Abstract: A machine for producing a fibrous web is characterized in that a measuring arrangement for measuring the ash content is mounted inside the machine, particularly inside the wire section, the press section, the drying section or after the drying section in front of a calendar. This measuring arrangement is connected, via a signal line, to a controller that is mounted inside a device for producing the fibrous material suspension.

Abstract: The invention relates to a method for loading a fibrous suspension containing cellulose fibers with calcium carbonate with the following steps of the method: Introduction of calcium hydroxide in liquid or dry form or of calcium oxide into the fibrous suspension introduction of gaseous carbon dioxide into the fibrous suspension and precipitation of calcium carbonate in spherical agglomerations (49) of crystals by the carbon dioxide. To this end, an arrangement for loading the fibrous suspension containing cellulose fibers is also created.

Abstract: An apparatus for loading a cellulose fiber containing fibrous stock suspension with calcium carbonate which includes an arrangement of machines for loading the fibrous stock suspension with calcium carbonate, whereby the machines are supplied with flue gas which contains carbon dioxide. The machines are followed by a deaeration unit for the removal of superfluous gas.

Abstract: A method for the preparation of fiber stock for the production of paper or cardboard, including the steps of: a) Supplying fibers in the form of a suspension that has a predetermined solids content, b) Loading of the fibers with a precipitation product, without refining the stock, c) Refining of the fibers after completion of the loading process, in order to improve the freeness value and/or to alter the fiber characteristics, and d) Transporting of the fiber stock suspension in direction of the paper machine.

Abstract: A device treats a fiber stock suspension with at least one additive, the fiber stock suspension being used for production of at least one of paper and cardboard. The fiber stock suspension includes a suspension medium and a fiber material. The fiber material has fiber surfaces, the fiber surfaces being moistened by the suspension medium. The device includes a fluffer having an inlet for receiving at least one of the fiber stock suspension and the at least one additive. The fluffer is coupled to the inlet, the fluffer being configured for separating the fiber material and enlarging a specific surface of the fiber surfaces.

Abstract: A method for refining aqueous suspended fibers, the fibers being paper fibers or pulp fibers including the steps of leading, pressing, forming, temporarily attaching, supplying and discharging. The leading step includes leading the aqueous suspended fibers through at least one refining zone which is located between an inside wall of a rotating refiner drum and at least one refiner roll, the refiner roll rotating in association with the refiner drum. The pressing step includes pressing the refiner roll and the refiner drum against each other thereby causing a mechanical refining force to be transferred to the fibers so that strength properties of paper produced therefrom are altered. The forming step includes forming a fibrous stock layer on the inside wall of the rotating refiner by the aqueous suspended paper fibers. The temporarily attaching step includes temporarily attaching the fibrous stock layer to the inside wall due to rotation.

Abstract: A method for the production of a fiber web from a fiber stock suspension including a filler, including the steps of: selecting at least one size of at least one filler particles for a predetermined color of the fiber web, including at least one filler particles in the filler, adding at least one filler including at least one filler particles of at least one size in the fiber stock suspension and producing the fiber web in the predetermined color.

Abstract: A stock preparation system includes a stock preparation apparatus and a sensor coupled with the stock preparation apparatus. The sensor is configured for sensing a physical parameter associated with the stock preparation apparatus, and includes a wireless transmitter for transmitting an air-borne wireless output signal corresponding to the sensed physical parameter. A remote unit includes a receiver for receiving the wireless output signal and a first data link for transmitting a remote output signal corresponding to the wireless output signal. A base unit includes a second data link at least intermittently coupled with the first data link for receiving the remote output signal.

Abstract: An apparatus for loading fibers in a fiber suspension with calcium carbonate has a housing with an inlet and an accept outlet. A rotatable distribution member is positioned within the housing. A rotor and stator assembly is positioned within the housing radially outside of the distribution member. A toothed ring is interposed between the distribution rotor and the rotor and stator assembly. The toothed ring and the rotor and stator assembly define a gas ring therebetween. A reactant gas supply is fluidly coupled with the gas ring. A method for loading fibers in a fiber suspension with calcium carbonate can be practiced with the apparatus, The method controls various factors and provides low shear treatment of the suspension to promote selective crystal formation.

Abstract: Refiner fitting and process of forming a refiner fitting, which includes a base body, and at least two knife sectors detachably coupled to the base body to form a working side. The knife sectors include grooves and at least three refiner strips, and the knife sectors and refiner strips are structured to form one continuous part. The instant abstract is neither intended to define the invention disclosed in this specification nor intended to limit the scope of the invention in any way.

Abstract: A method for the fabrication of a fibrous web including the steps of loading fibers with a precipitant, thereby defining treated fibers. Creating at least a portion of the precipitant as crystalline precipitant particles. Supplying the treated fibers as a pumpable fiber stock suspension to a sheet forming process that forms the fibrous web. And, controlling filler distribution across a web cross section of the fibrous web by way of a vacuum supply in the sheet forming process.

Abstract: For a process and an apparatus for loading fibers contained in a pulp suspension with calcium carbonate, a calcium oxide and/or a medium containing calcium hydroxide is fed to the pulp suspension, and the so treated pulp suspension is further charged in several reactors with pure carbon dioxide or a medium containing carbon dioxide. The reactors can be connected in series and/or in parallel.

Abstract: A method for one of preparing fibers contained in a pulp suspension and preparing coating color for coated papers including the steps of providing fibers in a suspension form having a predefined solids concentration; loading the fibers with a precipitation product; grinding the fibers with the precipitation product to thereby produce precipitation product particles having a dimension. The dimension being from approximately 0.05 ?m to 5 ?m. With an additional step of producing crystalline precipitation product particles using the precipitation product particles in an online process directly in a stock preparation line.