The present invention relates to a system and a method for abating the presence of a selected chemical substance in wastewater flowing in a wastewater channel system from an upstream position to a downstream position. The method typically comprising dosing into the wastewater, at the upstream position, chemical agent(s) adapted to abate the presence of said selected chemical substance, wherein the dosing is in an amount set by a dosing set-point, and adjusting the dosing set-point based on determinations of the concentration of the selected chemical substance at the downstream position. The invention involves comparison between a determined concentration and a pre-selected fractile and adjusting a dosing set-point based thereon.

A system for capturing and destroying hair and waste within a shower drain includes a basket placed in the drain which holds a rod including an enzyme blend. The basket captures hair or waste that is washed down shower drains. The enzyme blend neutralizes the hair or waste. The result is a clear drain and clear plumbing, with minimal manual labor. The basket does not require removal because the hair and waste are neutralized before a clog can develop. The enzyme blend is safer for both users and the plumbing systems treated than conventional drain cleaning chemicals.

Various aspects of this disclosure relate to toilet systems that include compositions to inhibit wastewater from freezing in a waste tank of a toilet. A first fluid treatment composition comprises a salt that is introduced into the waste tank. A second fluid treatment composition is a solid composite that also comprises a salt and that is introduced into a urinal in fluid communication with the waste tank.

A system for capturing and destroying hair and waste within a shower drain includes a basket placed in the drain which holds a rod including an enzyme blend. The basket captures hair or waste that is washed down shower drains The enzyme blend neutralizes the hair or waste. The result is a clear drain and clear plumbing, with minimal manual labor. The basket does not require removal because the hair and waste are neutralized before a clog can develop. The enzyme blend is safer for both users and the plumbing systems treated than conventional drain cleaning chemicals.

The invention provides a method of decontaminating a waste stream liquid of solid particulate and one or more other pollutants, the method comprising the steps of: (i) removing solid particulate contaminant from the waste stream liquid by passing the waste stream liquid through at least one solids trap into a waste stream liquid holding reservoir whereby solid particulate is retained in the at least one solids trap; and (ii) removing one or more other pollutants from the waste stream liquid in the reservoir by contacting the waste stream liquid with at least one contaminant trap whereby the contaminant trap sequesters the one or more other pollutants within the contaminant trap.

An article, a container, and a method for disposing of fat, oil, and/or grease (FOG). The article may include a top portion including a top opening and a perimeter rim, and a body portion connected to and below the top portion having: a continuous FOG-impermeable membrane and upper and lower body portions. The body portion may include a body middle surface dividing upper and lower body portions and may be placed on at least a portion of a surface. The lower body portion may be sized to fit within a drain. The container may include an integrally formed continuous outer shell including a partially hollow interior, a top part having a top opening, and liquid impermeable bottom and upper parts, and a middle part dividing the top and bottom parts and including at least one middle edge for placement on a first surface.

The method of the managed sewer is a Netcentric distributed process that is managed in real-time and implemented through several apparatuses that enable the low capital cost and low installation cost of a smaller diameter pipe (smaller than typically used in gravity flow systems). The apparatuses enable the method of managing the grinding, pumping and staging processes to optimize the effectiveness of the collection process through the small pipe and increase system efficacy by using the pumping and transport action of the material in the pipe as part of the process activity.

Method and system for treatment of a wastewater stream at a location is disclosed. The wastewater stream includes a floating waste component such as sewer FOG or oil and an aqueous component such as water. The wastewater stream is directed from the location to a separator through an intake which is fluidly connected to the location and the separator. The separator separates the floating waste component from the aqueous component. The separated floating waste component is directed to a floating waste discharge outlet associated with the separator and the separated aqueous component is directed to an aqueous discharge outlet associated with the separator.

A storage container includes an input portion for receiving and filtering a source liquid to form an output liquid, a storage portion for storing the filtered liquid, and a base portion disposed below the storage portion including a UV light source for providing transmitted UV light to the filtered liquid, a UV light detector disposed an optical path length away from the UV light source for detecting received UV light through the filtered liquid in response to the transmitted UV light, a processor for determining an absorption or a transmission percentage in response to the transmitted UV light and the received UV light, for determining a safe condition, in response to the absorption or the transmission percentage respectively not exceeding or exceeding predetermined criteria, and one or more indicators for indicating that the liquid is safe for consumption to a user, in response to the safe condition.

Provided is a sewage treatment system capable of maintaining a positive dissolved oxygen concentration of sewage flowing down through a sewer conduit downstream of a relay pump station, and changing a microbial state on an inner wall of the sewer conduit to prevent corrosion of the sewer conduit. The sewage treatment system comprises: dehydration means connected to an initial sedimentation pond and/or a final sedimentation pond of a sewage treatment facility and configured to receive surplus sludge from the initial sedimentation pond and/or return sludge from the final sedimentation pond and dehydrate the received surplus sludge and/or the received return sludge; a microbial material production device configured to supply oxygen to the dehydrated sludge received from the dehydration means while maintaining a temperature of the dehydrated sludge within the range of 60 C. to 110 C., to subject the dehydrated sludge to aerobic fermentation using Gram-positive aerobic microbes in the hydrated sludge, thereby producing a microbial material in which Gram-negative anaerobic and facultative anaerobic microbes in the hydrated sludge are decomposed and extinguished and which contains aerobic microbial spores produced after the aerobic fermentation; water feeding means configured to feed water from any part of the sewage treatment system to the after-mentioned microbe activation device; a microbe activation device configured to receive the microbial material from the microbial material production device, and supply the water from the water feeding means to the received microbial material, while maintaining a temperature and an oxygen concentration of the water, respectively, within the range of 10 C. to 40 C., and within the range of 1 to 10 mg/L, thereby germinating the spores of the microbial material to activate the microbial material; and oxygen supply means configured to supply oxygen to the sewage at any position of the relay pump station; wherein the sewage including the activated microbial material and the oxygen supplied from the oxygen supply means is sent from the relay pimp station to the sewage treatment facility.