The invention provides a method for the industrial manufacture of granulated fertilizers of the type including the steps of granulation, drying, control of the granule temperature, and sifting, granulation being carried out using a starting material in the form of a thick homogenized suspension in which soluble and insoluble components are present, and in which, prior to the granulation step, said starting material is premixed with other selected raw materials with a high content of nitrogen, phosphorus, potassium, sulfur, calcium, organic matter, micronutrients and combinations thereof.

The present invention addresses to the production of an organomineral fertilizer consisting of a mineral matrix, drilling gravel and an organic matrix, algae biomass. Algae are cultivated using drilling gravel suspended in the culture medium together with their ability to grow by absorbing CO.sub.2, and, in the case of cyanobacteria, they fix atmospheric nitrogen in their biomass. The gravel provides a set of additional nutrients present in its composition to the conventional nutritional chemical compounds for algae. In this way, the gravel can be mixed with the culture medium in the cultivation of algae, generating the organic matrix to be formulated and commercialized in the national and international agricultural market as an organomineral fertilizer, and, in the case originating from the organic matrix of cyanobacteria, there is the enrichment with nitrogen obtained biologically, without the high energy expenditure typical of traditional synthetic nitrogen fertilizers. In this way, the present invention enables the disposal with a minimum of environmental impact and constitutes a satisfactory solution for the disposal of gravel for oil E&P.

The present invention addresses to the production of an organomineral fertilizer consisting of a mineral matrix, drilling gravel and an organic matrix, algae biomass. Algae are cultivated using drilling gravel suspended in the culture medium together with their ability to grow by absorbing CO.sub.2, and, in the case of cyanobacteria, they fix atmospheric nitrogen in their biomass. The gravel provides a set of additional nutrients present in its composition to the conventional nutritional chemical compounds for algae. In this way, the gravel can be mixed with the culture medium in the cultivation of algae, generating the organic matrix to be formulated and commercialized in the national and international agricultural market as an organomineral fertilizer, and, in the case originating from the organic matrix of cyanobacteria, there is the enrichment with nitrogen obtained biologically, without the high energy expenditure typical of traditional synthetic nitrogen fertilizers. In this way, the present invention enables the disposal with a minimum of environmental impact and constitutes a satisfactory solution for the disposal of gravel for oil E&P.

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.

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 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.

There is disclosed a water treatment system, a method of water treatment, and a fertilizer for use with the water treatment system and the method of water treatment. The water treatment system for hydroponic culture without pesticides comprises: an ionization device for the ionization of a culture water, the ionization device having at least one electrode for the release of divalent copper cations; a plant tray for the culture of plants; and a plurality of pipes fluidically connected to the ionization device and the plant tray, the culture water being in circulation through the water treatment system.

There is disclosed a water treatment system, a method of water treatment, and a fertilizer for use with the water treatment system and the method of water treatment. The water treatment system for hydroponic culture without pesticides comprises: an ionization device for the ionization of a culture water, the ionization device having at least one electrode for the release of divalent copper cations; a plant tray for the culture of plants; and a plurality of pipes fluidically connected to the ionization device and the plant tray, the culture water being in circulation through the water treatment system.

A method to grow cannabis is described, wherein the method includes providing and treating a source of water, mixing the water with an additive to form a liquid mixture, transferring the liquid mixture to a plurality of cannabis plants grown in a growing medium including a mycorrhiza fungus, and growing the cannabis using a humidity control method, then harvesting the cannabis plants. Trimming and grinding the cannabis along with use of environmental control methods including temperature, humidity, lighting schedules, and carbon dioxide concentrations are also described.