Embodiments of the present invention may provide a soil amendment which can increase the soil permeability, increase a plant's ability to repel pests and even its antioxidant capabilities such as to provide anti-browning of its fruit, larger crop yields, larger fruit and vegetables, or the like.

The present invention provides a method for the preparation of multi-nutrient potassic fertilizer, by recovering potassium from sugarcane molasses based alcohol distillery effluent (commonly known as spent wash). The process involves pre-treatment of spent wash to clarify the aqueous phase and utilization of the treated spent wash in production of potassic fertilizer. The present invention enables utilisation of spent wash for recovery of value-added product (viz., potash fertiliser of >99% purity) and improves ease of Zero Liquid Discharge compliance by subjecting the relatively benign process effluent to industrially practiced techniques for water recovery and salt reclamation.

The present invention discloses a method for ammonium-enhanced flue gas desulfurization (FGD) by using red mud slurry. The method specifically includes: crushing red mud, sieving the crushed red mud, slurrying the red mud, conducting aeration treatment, adding an ammonium salt and/or ammonia, and conducting natural sedimentation to obtain pretreated red mud slurry and pretreated red mud liquor; adding an ammonium salt and/or ammonia to the slurry, adding water and conducting uniform mixing, conducting pre-FGD, conducting deep desulfurization on treated flue gas by using the pretreated red mud liquor, and directly discharging desulfurized flue gas; and charging the pretreated red mud slurry and the pretreated red mud liquor obtained after the treatment to a replacement tank below, adding lime milk to the replacement tank, conducting stirring and natural sedimentation, conducting soilization on subnatant thick red mud slurry, and refluxing the supernatant to a red mud aeration tank.

The invention concerns a method for extracting valuable materials from organic compounds contained in waste or chemical elements contained therein.

The method comprises the following steps carried out in succession: a) mixing the waste (1) with a base so that a liquid medium is formed, b) heating the medium in a reactor (3) to a temperature of 100 C. to 140 C. in order to hydrolyse the organic compounds contained in the medium, and withdrawing (c) the vapour which is formed, b1) transferring (c) the vapour from the reactor (3) to a washing tower (4), b2) adding sulphuric acid or phosphoric acid (c) to the vapour in order to form ammonium sulphate(s) or ammonium phosphate(s), wherein a solution is obtained in the bottom of the washing tower (4) and the vapour is withdrawn from the head of the washing tower (4), b3) transferring (e) the solution obtained in step b2) to an electrochemical cell (6) with a cathode chamber and an anode chamber and electrolysing the solution, whereupon in the anode chamber, sulphuric acid or phosphoric acid is obtained for step b2), b4) recycling (c) the sulphuric acid or phosphoric acid obtained from the anode chamber to the washing tower and withdrawing (f) valuable materials formed in the cathode chamber, in particular an ammoniacal solution, c) transferring (d) the liquid medium remaining in the reactor (3) in step b) to a separating device (5) in order to separate any solid inorganic phase which is contained in the liquid medium.

The invention concerns a method for extracting valuable materials from organic compounds contained in waste or chemical elements contained therein.

The method comprises the following steps carried out in succession: a) mixing the waste (1) with a base so that a liquid medium is formed, b) heating the medium in a reactor (3) to a temperature of 100 C. to 140 C. in order to hydrolyse the organic compounds contained in the medium, and withdrawing (c) the vapour which is formed, b1) transferring (c) the vapour from the reactor (3) to a washing tower (4), b2) adding sulphuric acid or phosphoric acid (c) to the vapour in order to form ammonium sulphate(s) or ammonium phosphate(s), wherein a solution is obtained in the bottom of the washing tower (4) and the vapour is withdrawn from the head of the washing tower (4), b3) transferring (e) the solution obtained in step b2) to an electrochemical cell (6) with a cathode chamber and an anode chamber and electrolysing the solution, whereupon in the anode chamber, sulphuric acid or phosphoric acid is obtained for step b2), b4) recycling (c) the sulphuric acid or phosphoric acid obtained from the anode chamber to the washing tower and withdrawing (f) valuable materials formed in the cathode chamber, in particular an ammoniacal solution, c) transferring (d) the liquid medium remaining in the reactor (3) in step b) to a separating device (5) in order to separate any solid inorganic phase which is contained in the liquid medium.

A fortifier for growth and flowering in horticulture, trees and ornamental plants, aromatic plants and fruit trees, from wastewater from brewer's yeast with a very low protein concentration. The method including the step of: filtered by 80 m; magnetic treatment of the liquid; addition of 0.1 to 20 g/l phosphate and 10 to 20 g/l glycose. Fermentation is carried out keeping the free amino acid content greater than 0.1%, the content of Mg.sup.+2 greater than 0.1%, total nitrogen, phosphate, and potassium below 3.0%, the content of protein from 0.5% to 1.0% and EDTA from 0.02% to 0.2%, all by dry matter weight; addition of microbes from the environment; at temperatures of 15 C. to 40 C. with gentle agitation, for 24 hours to 30 days; subsequent filtering and pH adjustment. It has been found to be effective in various crops.

The present invention relates to a biostimulant and biofertilizer bioinoculant composition in a Solanum tuberosum-based medium, which comprises microorganisms that produce siderophores and indole derivatives, solubilize phosphorus and fix atmospheric nitrogen. Said composition further comprises one or more indole derivatives and includes at least one additional carbon source. It is also disclosed a method for producing said composition. The composition of the present invention provides an alternative to chemical fertilization of crops, promotes plant growth by maintaining stable cell counts after its application to a substrate or to plant material and has extended shelf life.

The present invention relates to a method for producing a composition for use in land application. The method comprises: (a) obtaining a fermentation product by a production process comprising the steps of: (i) treating lignocellulosic feedstock to produce sugar; (ii) fermenting the sugar to produce a fermented mixture comprising the fermentation product; and (iii) recovering the fermentation product from the fermented mixture in one or more stages to produce a concentrated fermentation product and still bottoms; and (b) recovering the still bottoms, the still bottoms comprising organic and inorganic components; and (c) providing the still bottoms for use in a land application. Also provided is a soil conditioning composition for use in land application. The soil conditioning composition contains still bottoms and optionally other components.

The present invention is a plant growth promoter containing one or more seed shell components of plant selected from Palmae Elaeis, Leguminosae Faboideae, Juglandaceae, Rosaceae Prunus, and Oleeae.

Devices, systems, and methods for drying a bulk waste product, such as animal waste, having a moisture content of 95% or more water can include a trough configured to receive the bulk waste product and to dispense it in a form suitable for convective drying, one or more conveyors having an air-permeable conveyor belt, each conveyor receiving the waste product from the trough and transporting the waste product along a transport path; and one or more air moving devices (AMDs) that pass air through the air-permeable conveyor belt and across the waste product as it is transported along the transport path to transform the bulk waste product into a dried waste product having a moisture content of about 5% to about 20%, inclusive.