The present invention provides advanced livestock wastewater treatment systems, devices and methods for simultaneous removal of nitrate (nitrite) from treated wastewater at cathode chamber and of organics, suspended solids and malodor (caused by volatile fatty acids) from raw wastewater at anode chamber using anaerobic bioelectrochemical system (BES). The present invention provides a device comprising at least one anode chamber equipped inside with at least one anode, and at least one cathode chamber equipped inside with at least one cathode, wherein the anode chamber is attached to the cathode chamber via separator in order to transport anions or cations between the anode chamber and the cathode chamber.

A method for treating wastewater includes passing wastewater through a pretreatment component to remove at least portions of one or more contaminants from the wastewater and generate a permeate and passing the permeate through an electro-chemical cell component to remove at least remaining portions of the one or more contaminants and generate an exudate.

A process for recovering phosphorus from sewage sludge in which sewage sludge undergoes a tumbling process in a rotary kiln and the expelled phosphor is collected in the form of a gaseous phosphorus pentoxide.

A method of providing, maintaining and using a youthful added microbe population for the treatment of wastewater. A method of providing green sustainable microbiology net zero carbon solution to waste water and waste material treatment using biofermentation to treat the waste water and waste material with aa treatment containing biofermented microbes.

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) mode 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) mode 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 filter system for filtering a fluid stream is disclosed herein. The filter system includes a first fluid passage, a first chamber, a second chamber, an adsorbing media, and a second fluid passage. The first fluid passage is arranged such that a fluid stream can flow through the first fluid passage and into the filter system. The first chamber is arranged to hold suspended or dissolved solids, pollutants, and nutrients that are filtered from the fluid stream. The second chamber is positioned above the first chamber and in fluid communication with the first chamber. The adsorbing media is positioned in the second chamber. The second fluid passage is arranged such that filtered fluid from the fluid stream can flow out of the filtering system through the second fluid passage.

Copper based nanoparticle composite compositions, methods, and systems for purification and sterilization of contaminated water are provided.

A sewage treatment apparatus comprises an external box body internally being provided with an anaerobic zone, an aerobic zone, a settling zone, a sewage reduction zone and an apparatus zone separated from each other, wherein the anaerobic zone, the aerobic zone, the settling zone and the sewage reduction zone communicate in sequence, the anaerobic zone communicates with a septic tank, the aerobic zone communicates with the anaerobic zone to reflux a part of mixed liquid to the anaerobic zone, the settling zone communicates with the anaerobic zone to reflux a part of active sludge to the anaerobic zone, and the sludge reduction zone communicates with the anaerobic zone or the septic tank; and the apparatus zone is internally provided with a detection unit for detecting various parameters during a sewage treatment process and a controller for controlling working states according to a detection result of the detection unit.

Disclosed herein is a method of producing a polyaniline zirconia nanocomposite, and the uses of the thus produced polyaniline zirconia nanocomposite for the treatment of wastewater. The polyaniline zirconia nanocomposite is characterized in having a particle size of about 0.3 to 50 μm in diameter, an isoelectric point at about pH 6.2, and is capable of reducing at least 99% of the pathological microorganism and at least 60% of the phosphate in the wastewater after coming into contact with wastewater for 24 hrs and 12 hrs, respectively.

The present invention relates in part to a filter comprising a tubular housing having a proximal end, a distal end and a housing lumen therethrough; a tubular membrane having a proximal end, a distal end and a membrane lumen therethrough, wherein the tubular membrane is positioned within the housing lumen; a contaminated fluid sample inlet fluidly connected to the proximal end of the membrane, and a contaminated fluid sample outlet fluidly connected to the distal end of the membrane, thereby creating a sample flow-path from the sample inlet through the membrane lumen to the sample outlet; and a purification material inlet fluidly connected to a distal region of the housing lumen, and a purification material outlet fluidly connected to a proximal region of the housing lumen, thereby creating a purification material flow-path from the purification material inlet through the housing lumen to the purification material outlet; wherein the direction of the sample flow-path is in the opposite direction of the purification material flow-path. The invention also relates a method of purifying a contaminated fluid using said filter.