A system for processing animal-based material is disclosed that includes at least one microwave generator, at least one microwave guide operatively connecting the at least one microwave generator to at least a first conveyor unit. The first conveyor unit is provided in a first housing that includes at least one opening configured to receive microwave energy via a first microwave guide and the first conveyor unit is configured to receive and process a quantity of animal-based material, which includes heating the animal-based material to a first temperature by applying microwave energy to the animal-based material within the first housing.

A dry and solid fertiliser in the form of discreet particles is provided. The particles of the dry and solid fertiliser comprise a homogenous mixture of organic and inorganic materials. The inorganic material comprises at least one of the NPKS nutrients. The organic material comprises a carbon-labile substantially sterile product of organic waste.

A dry and solid fertiliser in the form of discreet particles is provided. The particles of the dry and solid fertiliser comprise a homogenous mixture of organic and inorganic materials. The inorganic material comprises at least one of the NPKS nutrients. The organic material comprises a carbon-labile substantially sterile product of organic waste.

A homogenous granular paper mulch including fertilizer (with the fertilizer composed of natural and/or conventional synthetic ingredients). The mulch is a granular solid composed of recycled paper, fertilizer, and water. The granular product is easy to handle and apply and provides an improved environment for germinating seed.

Disclosed herein are compositions including cells of defined sets of microbial species (for example, 3, 16, 18, 19, 21, or 22 microbial species). Also disclosed are methods of using the microbial compositions that include contacting soil, plants, plant parts, or seeds with the composition. The microbial compositions are also used in methods of degrading biological materials, such as chitin-containing biological materials.

A method for producing an amino acid liquid fertilizer from waste feathers includes: acquiring an enzymatic hydrolysate by performing enzymolysis on feather powder with a complex enzyme; adding acid protease to the enzymatic hydrolysate for enzymolysis; and acquiring the amino acid liquid fertilizer by performing enzyme inactivation on a filtrate acquired by performing filtering after enzymolysis is completed, wherein the complex enzyme includes keratinase and amino acid peptidase. By adopting this method, the enzymolysis rate of the feathers reaches 80% or above and the prepared amino acid liquid fertilizer contains various kinds of amino acids (17 amino acids); and the content of the amino acid can reach 10.12% (by mass fraction) or above and the content of small peptide reaches 9.39% (by mass fraction), which reach the Chinese standard of the amino acid liquid fertilizers without concentration. Thus, the environmental-friendly amino acid liquid fertilizer can be prepared.

A system for recovering fat, oil and grease (FOG) from wastewater has multiple annular flotation zones in a concentric configuration surrounding a central column to create progressively increasing surface areas for FOG and solid particles flotation. Each flotation zone may be equipped with an independent pressurized micro air and/or ozone bubbles distribution system. The FOG is recovered in the first flotation zone without chemical additions. Coagulant and flocculant may be added in the second flotation zone to maximize removals of biochemical oxygen demand (BOD), total suspended solids (TSS), and colloidal particulates and produce clear effluent. Magnesium chloride is added in the third flotation zone to remove phosphorus and to form struvite particulates that can be used as fertilizer. Since both organic loading and solid loading in the treated effluent are significantly reduced, poultry processing plants can more easily meet wastewater treatment plant discharge limits and avoid surcharges.

A method for producing an organic nutrient slurry from organic material containing at least one of animal material and plant material is provided. The method includes introducing the organic material into a pressurized reactor and subjecting the organic material to agitation and saturated steam at a temperature and pressure within the pressurized reactor for a duration of time sufficient to thermally hydrolyze and denature the organic material into a denatured slurry having mineral particle sizes of less than 200 microns; conveying the denatured slurry and at least one microbial inoculant to an aerobic reactor to form a mixture therein; and introducing oxygen to the aerobic reactor to stimulate aerobic digestion of the mixture, while maintaining the mixture at a predetermined temperature range and predetermined pH range sufficient to support the aerobic digestion, in order to produce an organic nutrient slurry for plants.

A method for producing an organic nutrient slurry from organic material containing at least one of animal material and plant material is provided. The method includes introducing the organic material into a pressurized reactor and subjecting the organic material to agitation and saturated steam at a temperature and pressure within the pressurized reactor for a duration of time sufficient to thermally hydrolyze and denature the organic material into a denatured slurry having mineral particle sizes of less than 200 microns; conveying the denatured slurry and at least one microbial inoculant to an aerobic reactor to form a mixture therein; and introducing oxygen to the aerobic reactor to stimulate aerobic digestion of the mixture, while maintaining the mixture at a predetermined temperature range and predetermined pH range sufficient to support the aerobic digestion, in order to produce an organic nutrient slurry for plants.

A liquid complex fertilizer or soil amendment composition is provided, made by steps of alkaline hydrolysis of fish under aqueous conditions and conditions of temperature and agitation suitable to provide a liquid fish hydrolysate comprising one or more humic substances. Methods for producing the liquid complex fertilizer are described.