Compositions, systems, and methods of using alkaline-producing Aluminate salts in the sludge collection and digestion steps of zoo wastewater processing to reduce acidity and/or build alkalinity, reduce hydrogen sulfide release, and reduce phosphate in the effluent.

The disclosure relates to methods, systems, and apparatus configured to manage a filtration media bed and apparatuses associated therewith. Information associated with the detection of an amount of one or more target contaminates present in a gas phase or liquid phase in a filtration operation can be provided. One or more target contaminates can be removed from a gas or liquid phase traveling in and through the system via a media bed material. The filtration system media bed arrangement can include a plurality of media bed zones. Sensors or sensor arrangements can detect an amount of target contaminate that has flowed through the filtration apparatus over a period of time vis a vis one or more media bed zones. Condition states for each of the media bed zones or the entirety of a media bed arrangement can be generated to better ensure effective target contaminant removal over time.

Described herein are systems and techniques for monitoring and controlling values of oxidation reduction potential (ORP) of brine provided to a separation system. Brine that includes valuable elements, such as lithium, may also include levels of silica and transition metals like iron that could react with oxygen to create insoluble compounds that could clog apparatus designed to remove lithium from brines. Systems and techniques of the present disclosure may control ORP values by adding measures of reducing agents to brine to prevent formation of the insoluble compounds, such as ferrosilicate that can be formed from an oxidation reaction of ferrous iron (Fe.sup.+2) and silicate. Techniques of the present disclosure may generate, train, and use computer models to control ORP values of brine.

Methods of controlling hydrogen sulfide concentration of a biogas occupying an anaerobic membrane bioreactor (AnMBR) containing a submerged membrane are disclosed herein. Methods of controlling dissolved sulfide concentration of a mixed liquor within the AnMBR are disclosed. The methods include directing wastewater containing sulfur and a chemical oxygen demand (COD) to an AnMBR, withdrawing at least a fraction of the biogas from the AnMBR, directing a pre-determined amount of the withdrawn biogas to a scrubber, directing a remainder of the withdrawn biogas to a gas distributor, and directing the scrubbed biogas to the AnMBR. Systems for treating wastewater having sulfur and COD are disclosed. The systems include an AnMBR, a scouring gas closed loop, a scrubber, and a control mechanism for directing biogas to the scrubber and to a gas distributor. Methods of retrofitting a system for treating wastewater having sulfur and COD are disclosed.

A wastewater treatment management system including a plurality of monitoring stations, a treating station for introducing a treating agent to wastewater, and a principal processing facility for controlling a dose of the treating agent. A system configured to treat a wastewater stream collection system including a source of a treating agent, a metering valve, a sensor, and a controller operatively connected to the metering valve and the sensor. A non-transitory computer-readable medium including instruction that instruct a controller to perform a method of controlling addition of a treating agent into a wastewater stream collection system. A controller for a system configured to treat odor and control corrosion in a wastewater stream collection system that is operatively connectable to a metering valve for administering a treating agent to a wastewater stream collection system.

Compositions, systems, and methods of using alkaline-producing Aluminate salts in the sludge collection and digestion steps of wastewater processing to reduce acidity and/or build alkalinity, reduce hydrogen sulfide release, and reduce phosphate in the effluent.

Described herein are systems and techniques for monitoring and controlling values of oxidation reduction potential (ORP) of brine provided to a separation system. Brine that includes valuable elements, such as lithium, may also include levels of silica and transition metals like iron that could react with oxygen to create insoluble compounds that could clog apparatus designed to remove lithium from brines. Systems and techniques of the present disclosure may control ORP values by adding measures of reducing agents to brine to prevent formation of the insoluble compounds, such as ferrosilicate that can be formed from an oxidation reaction of ferrous iron (Fe.sup.+2) and silicate. Techniques of the present disclosure may generate, train, and use computer models to control ORP values of brine.

A wastewater treatment management system including a plurality of monitoring stations, a treating station for introducing a treating agent to wastewater, and a principal processing facility for controlling a dose of the treating agent. A system configured to treat a wastewater stream collection system including a source of a treating agent, a metering valve, a sensor, and a controller operatively connected to the metering valve and the sensor. A non-transitory computer-readable medium including instruction that instruct a controller to perform a method of controlling addition of a treating agent into a wastewater stream collection system. A controller for a system configured to treat odor and control corrosion in a wastewater stream collection system that is operatively connectable to a metering valve for administering a treating agent to a wastewater stream collection system.

A method of treating wastewater in sewer lines prevents or inhibits the formation and release of hydrogen sulfide from the wastewater. The method includes the step of injecting a water treatment chemical that reacts with sulfur in the sewer line only when the instant flow rate of wastewater is below a threshold flow rate at which hydrogen sulfide is most likely to form and release.