A water purification system comprises a bioreaction subsystem receiving contaminated input effluent and having a gas-lift anaerobic membrane bioreactor removing urea and organic matter to create a first effluent. A light-treatment subsystem receives the first effluent and exposes the first effluent to UV light to create a second effluent free from microorganisms. A reactor subsystem fluidically connects an ammonia-reducing reactor to the UV output and receives UV-treated second effluent and has a struvite regenerator connected to the ammonia-reducing reactor output, separating ammonia from the second effluent in the ammonia-reducing reactor, and outputting the ammonia. A separation subsystem fluidically connects to the reactor output and receives the second effluent substantially free from ammonia and has a continuous electro-deionization device separating brine/salts from the second effluent to produce potable water. A closed-loop includes an ammonia-converting subsystem and a sequential fertilizer producer.

Methods of fertilizing soil, and of increasing a crop yield, plant growth, and rate of seed germination using melanin, or a melanin precursor, derivative, or analog are provided. The methods described herein require water, melanin, or a melanin precursor, derivative, or analog, and a source of electromagnetic energy, such as visible or invisible light energy, to catalyze the electrolysis of water. The electrolysis of water causes the release of diatomic hydrogen into the soil, resulting in fertilization of the soil. Also provided are fertilized soil compositions.

An apparatus for controlling water temperature includes a housing defining a composting chamber for receiving compost and a conduit disposed within the housing for providing flow of water. The conduit at least partially receives heat generated by the compost and may include a first subconduit extending substantially about an axis of the housing, a second subconduit extending substantially about the axis of the housing and being spaced apart from the first subconduit and a plurality of elongated subconduits extending between the first subconduit and the second subconduit and providing fluid communication therebetween. The housing may have at least one translucent portion for permitting flow of light waves therethrough. The apparatus may have a mechanism for mixing the compost.

A water purification system comprises a bioreaction subsystem receiving contaminated input effluent and having a gas-lift anaerobic membrane bioreactor removing urea and organic matter to create a first effluent. A light-treatment subsystem receives the first effluent and exposes the first effluent to UV light to create a second effluent free from microorganisms. A reactor subsystem fluidically connects an ammonia-reducing reactor to the UV output and receives UV-treated second effluent and has a struvite regenerator connected to the ammonia-reducing reactor output, separating ammonia from the second effluent in the ammonia-reducing reactor, and outputting the ammonia. A separation subsystem fluidically connects to the reactor output and receives the second effluent substantially free from ammonia and has a continuous electro-deionization device separating brine/salts from the second effluent to produce potable water. A closed-loop includes an ammonia-converting subsystem and a sequential fertilizer producer.

The present invention is related to an anaerobic photobioreactor and a method for active biomass cultivation, wastewater treatment, nutrients recovery, energy production and high-value products synthesis. Phototrophic bacteria are cultured in the anaerobic photobioreactor lighted with solar or artificial irradiation where certain light wavelengths are selectively discarded with a light selector installed on the top of the photobioreactor. In this light-based process wastewater treatment and resources recovery, like nutrients and high-value bioproducts (fertilizers, polymers and proteins) present in wastewater are performed simultaneously. Cultured biomass is treated by anaerobic digestion for biofuel production, including optative hydrolytic pre-treatment, and/or valuable bioproducts can be obtained in a downstream process.

The present invention is related to an anaerobic photobioreactor and a method for active biomass cultivation, wastewater treatment, nutrients recovery, energy production and high-value products synthesis. Phototrophic bacteria are cultured in the anaerobic photobioreactor lighted with solar or artificial irradiation where certain light wavelengths are selectively discarded with a light selector installed on the top of the photobioreactor. In this light-based process wastewater treatment and resources recovery, like nutrients and high-value bioproducts (fertilizers, polymers and proteins) present in wastewater are performed simultaneously. Cultured biomass is treated by anaerobic digestion for biofuel production, including optative hydrolytic pre-treatment, and/or valuable bioproducts can be obtained in a downstream process.

An enhanced biofertilizer production implementation may comprise iteratively drying, curing and turning manure composting in a windrow lane until at least one predetermined criteria is satisfied to produce unamended compost, identifying and isolating a biologically active microorganism in the unamended compost, amplifying the isolated microorganism, adding the amplified isolated microorganism to the unamended compost to produce inoculated compost and mixing the inoculated compost with biosolids or other fertilizer ingredients with biosolids to impregnate and produce enhanced biofertilizer.

An enhanced biofertilizer production implementation may comprise iteratively drying, curing and turning manure composting in a windrow lane until at least one predetermined criteria is satisfied to produce unamended compost, identifying and isolating a biologically active microorganism in the unamended compost, amplifying the isolated microorganism, adding the amplified isolated microorganism to the unamended compost to produce inoculated compost and mixing the inoculated compost with biosolids or other fertilizer ingredients with biosolids to impregnate and produce enhanced biofertilizer.

An enhanced biofertilizer production implementation may comprise iteratively drying, curing and turning manure composting in a windrow lane until at least one predetermined criteria is satisfied to produce unamended compost, identifying and isolating a biologically active microorganism in the unamended compost, amplifying the isolated microorganism, adding the amplified isolated microorganism to the unamended compost to produce inoculated compost and mixing the inoculated compost with biosolids or other fertilizer ingredients with biosolids to impregnate and produce enhanced biofertilizer.

An enhanced biofertilizer production implementation may comprise iteratively drying, curing and turning manure composting in a windrow lane until at least one predetermined criteria is satisfied to produce unamended compost, identifying and isolating a biologically active microorganism in the unamended compost, amplifying the isolated microorganism, adding the amplified isolated microorganism to the unamended compost to produce inoculated compost and mixing the inoculated compost with biosolids or other fertilizer ingredients with biosolids to impregnate and produce enhanced biofertilizer.