Abstract:
The present invention utilizes a high-speed intensive mixer in fluidizing type solid phase neutralization reactor to blend solid state alkali hydroxide with any humic acid sources. The final product is a dry humic acid salt. The purpose of this innovative method is to eliminate a series of complicated unit operations commonly employed by the traditional process. These removed steps may include dissolving caustic soda, mixing in a paste like formation, extrusion, granulation, drying, and grinding, etc. The new invention contributes to a simplified flowsheet, resulting in sharply reduced equipment investment, the required plant space, and labor and energy costs. All these factors coupled with increased productivity will drastically lower the overall production cost. Also the reduction of dust pollution will greatly minimize the impact in environmental protection and safety issues.
Abstract:
An apparatus for recovering nutrients or water from digestate comprises one or more solid-liquid separation units, an ammonia stripping device, and a gas scrubbing unit. In a process, digestate is separated into a solids portion and a liquid portion. Ammonia is stripped from the liquid portion and converted into an ammonium salt solution which may be sold or used as, or blended with, a fertilizer product. Optionally, at least part of the remaining liquid portion may be concentrated to produce brine. The brine is mixed with the solids portion. The mixture may be dried and used as, or blended with, a fertilizer product. Optionally, a least part of the remaining liquid portion may be re-used as dilution water in a digester. A solids portion of the digestate, and one or both of an ammonium salt solution and a brine, may be used as fertilizer without thermal drying.
Abstract:
A CONVERTING MACHINE FOR COMPOST IS ARRANGED TO BE MOVED LONGITUDINALLY IN THE LOADING-UNLOADING DIRECTION AND ALSO IN THE TRANSVERSE DIRECTION. AT THE FORWARD END OF THE MACHINE A CONVEYOR HAVING PRONGS OR TOOTH-LIKE MEMBERS EXTENDING PERPENDICULARLY FROM ITS SURFACE, CONVEYS MATERIAL IN AN UPWARDLY SLOPING DIRECTIONS TO THE UPPER END OF A DISCHARGE PASSAGE. MEANS ARE PROVIDED FOR MIXING AIR AND WATER INTO THE COMPOST MATERIAL PRIOR TO ITS DELIVERY INTO THE DISCHARGE PASSAGE. THE DISCHARGE PASSAGE CONTAINS MEANS FOR REGULATING THE MANNER IN WHICH THE MATERIAL IS DISCHARGED FROM THE MACHINE.
Abstract:
Systems and methods for producing an organic fertilizer rich in humic substances and nitrogen from waste gases and liquids are disclosed. The methods include forming a mixture of coal and liquid and contacting said mixture with a gas containing ammonia, allowing ammonia react with the coal to release humic substances to the liquid and to complex ammonia with the coal and humic substances controlling the pH of the mixture and forming a humic ammonia rich fertilizer. The systems include a mixing chamber fluidly connected to sources of liquid and coal, a gas contacting chamber, a pH control subsystem, a solid liquid separator and a pathogen deactivator.
Abstract:
A method for comprehensively processing coal-type caustobiolites, predominantly brown coal and leonardite, into humic organic and organomineral fertilizers and intor preparations producing fuel briquettes, including carrying out main processes in a continuous flow; carrying out leaching processes based on aqueous solutions with hydromodules of close to 2, carrying out acidification processes with the formation of humic acid released from a liquid phase into a heavy phase of a coagulated pulp, carrying out mechanical phase separation processes in a centrifugal field, carrying out liquid-phase mechanoactivation and the dispersion of reaction compositions via grinding, using residual “water” in recycling, and including the production of water-soluble humic acids and fuel briquettes and allowing for the production of a wide range of products; preliminarily grinding raw materials to a 03 mm class, and cleaning and electrochemically softening water in preparing reaction aqueous solutions; using a liquid-phase raw material oxidation process, and using liquid-phase mechanoactivation and/or mechanochemical activation, with the dispersion of reaction compositions by means of grinding and by means of dynamically shifting layers having statistical shift rate components, of a medium to be processed, which range from single-digit meters per second to tens of meters per second; accompanying said mechanoactivation with the dosed input into said medium of 1040 MJ of mechanical energy per cubic meter, with the stabilization of said dosing regardless of the drift of all other parameters in said medium to be processed; wherein, said grinding and shifting processes are formed by means of statistical and dynamic characteristics; in this way, a dynamic hydro-pulse effect on a medium to be processed is carried out within a range of frequencies floating between infrasound and frequencies bordering on ultrasound, wherein the processing is carried out beginning with higher frequencies; in addition, providing for automatically maintaining maximum parameters for inputting mechanical energy into the medium to be processed, while automatically restricting same within a sub-cavitation zone in order to prevent the transition of the mechanochemical reactors into cavitation modes.
Abstract:
Bioactive compounds extracted from a fermentation broth created by a unique microbial community during a fermentation process and fractionated into several fractions based on size. Four of the resulting fractions stimulate growth of plants that are planted in soil to which the fractions have been applied. The fractions can be applied to the soil individually or combined together prior to application. In another embodiment, the unique fractions can be freeze dried or spray dried.
Abstract:
An organic potting mix is produced from sawmill wastes comprising predominantly wastes from the pinus genus either alone or mixed with other organic waste materials by a continuous process wherein the sawmill waste feedstock is comminuted, submerged in heated water containing treatment chemicals and then at least partially dewatered to a moisture content of from 15%-25% ww and a moisture capacity of about 50% ww. The potting mix so produced may be subjected to further comminution in an apparatus which applies mechanical shear under pressure to produce a peat moss alternative having an enhanced moisture capacity up to about 80% ww. An apparatus for the continuous production of the potting mix comprises a screw auger located in an inclined tubular body wherein the sawmill waste feedstock is submerged during travel from a lower end to an elevated dewatering end of said tubular body.
Abstract:
A rotary drum-type composting apparatus is disclosed, in which the drum is of circular cross section and is supported for rotation about a horizontal axis by means of external support wheels. An access opening is provided in the sidewall of the drum for loading of compostable material, and a removable flexible, waterproof cover is applied over perforated sidewalls of the drum, enabling the interior of the drum to be closed off so that the composting processes can occur. The drum is mounted as close to the ground or supporting surface as practicable, to facilitate manual loading of compostable materials. A clearing bar is installed on the outer surface of the drum, preferably on a removable door panel provided for closing the access opening. The clearing bar operates between the outer surface of the drum and the support wheels and their mounting shafts. During sifting operations, following completion of composting, the clearing bar sweeps away a clearance space below the drum, for efficient outsifting of the composted material from the drum.