The present disclosure is directed to a treatment system in a lagoon containing water that promotes the formation of biologically active granules that digest sludge in the lagoon, the lagoon comprising a bottom thereof, the water of the lagoon having a surface layer, the system including X number of water circulators in a cluster having an impeller disposed in the lagoon, wherein X is greater than or equal to three and hydraulic walls formed from at least some of the water expelled from each of a given pair of adjacent water circulators, wherein each of the hydraulic walls intersects at the midpoint of any two adjacent circulators, said hydraulic wall redirecting the expelled water downward towards the bottom of the lagoon, wherein the hydraulic walls at least partially surround at least one circulator.

A reactor for water splitting or water treatment includes a first electrode, a second electrode electrically coupled to the first electrode, and a proton exchange membrane separating the first electrode and the second electrode. The first electrode includes a first optical fiber coated with a photocatalytic material.

Culture systems and methods of using same. The systems include a housing defining an inner space. The inner space includes a headspace and at least a portion of a reservoir. A surface for immobilizing cells is moveable between the headspace and the reservoir. The systems can be used for coculturing methanotrophs and phototrophs for processing biogas and wastewater, particularly from anaerobic digesters.

According to present disclosure, there is disclosed an algae growth and cultivation system that provides a cost-efficient means of producing algae biomass as feedstock for algae-based products, such as, fertilizer, feed, biofuel manufacture, and desirably impacts, nutrient recovery from waste streams for valued byproducts production, recycle water, and alternative/renewable energy production. The system as discussed herein is an integrated systems approach to wastewater treatment, algal strains selection for byproducts production, and recycle of algal biomass-processing waste or additional algae harvested as feedstock for products such as fertilizer production. Embodiments of a system as discussed herein present an economically viable algae production system and process that allows algae-derived products such as fertilizer, feed, biofuels, etc. to compete with non-organic or petroleum products in the marketplace.

A method for nitrate removal from drinking water. The method includes adapting a sludge including hydrogenotrophic denitrifiers (HTDs) by dominating the HTDs in the sludge, cultivating a microalgae biomass, forming a microalgae-HTD biomass by cultivating a mixture of the adapted sludge and the cultivated microalgae biomass, nucleating a plurality of microalgae-HTD granules by cultivating the formed microalgae-HTD biomass in a sequencing batch (SB) mood with a constant HRT, growing the plurality of microalgae-HTD granules by cultivating the nucleated plurality of microalgae-HTD granules in an up flow (UF) mood with a reducing HRT, and continuous nitrate removal from nitrate-contaminated water with a minimum HRT over the grown plurality of microalgae-HTD granules.

A reactor for water splitting or water treatment includes a first electrode, a second electrode electrically coupled to the first electrode, and a proton exchange membrane separating the first electrode and the second electrode. The first electrode includes a first optical fiber coated with a photocatalytic material.

Geo-biological processes are designed to treat wastewater generated in animal feed lots when washing away feces, urine and other materials or in municipal wastewater systems. The present processes are focused on recovering a nutrient load in the wastewater for use as fertilizer and corresponding to separate mostly purified water for reuse. Alternate embodiments are algae and microbe based processes. The processes can be used individually or in various permutations.

Provided herein are lagoon systems and methods for industrial wastewater remediation.

Various methods for remediating materials/mediums are disclosed. For example, a particular method may include growing an amount of cyanotic organisms and red algae, separating cell walls of the cyanotic organisms from internal portions of the cyanotic organisms to form a separated cyanotic extract, the separated cyanotic extract being the internal portions of the cyanotic organisms, separating cell walls of the red algae from internal portions of the red algae to form a separated red algae extract, the separated red algae extract being the internal portions of the red algae, processing the separated cyanotic extract and processing the separated red algae extract so as to create a hybrid algae product, and performing a pollution remediation operation using the hybrid algae product.

A method for obtaining biofertilizer concentrates and biostimulants for agricultural use from biomass of microalgae, including cyanobacteria, wherein, firstly, the cellular content of the microalgae, including cyanobacteria, is released by rupturing the cells thereof; next, the protein fraction and the cell wall of the microalgae, including cyanobacteria, obtained from said release of the cellular content, are hydrolyzed with proteolytic enzymes until producing free amino acids; next, nitrogen (N), phosphorus (P) and/or potassium (K) excipients are added to the previously obtained product of enzymatic hydrolysis.