A composition containing a) 25 to 87 wt. % of KHSO.sub.5 containing triple salt b) 1 to 20 wt. % of at least one H.sub.2N(CH.sub.2).sub.nSO.sub.3H compound with n being 0, 1, 2 or 3, c) 1 to 8 wt. % of a surfactant d) 1 to 60 wt. % of a C.sub.2-C.sub.10 aliphatic dicarboxylic acid, optionally substituted with a hydroxyl and/or carboxylic group and e) 10 to 30 wt. % alkali metal phosphate.

A sulphur denitrification system includes a liquid input fluidly coupled to a source of saltwater that includes nitrate; a liquid output fluidly coupled to the source of saltwater; a plurality of vertically-oriented tanks, at least one of the tanks including a liquid inlet that is fluidly coupled to the liquid input to receive a flow of the saltwater, a volume configured to enclose a plurality of sulphur particles that support denitrification bacteria that biologically transform the nitrate into at least one of nitrous oxide or nitrogen gas, and a liquid outlet fluidly coupled to the liquid output and the liquid inlets of the tanks; and a circulation system configured to circulate a portion of the saltwater though the liquid input to the liquid inlets of the plurality of tanks, through the plurality of tanks, and from the liquid outlets of the tanks to the liquid output and the liquid inlets of the tanks.

Methods for generating methane from animal waste by anaerobic digestion using bacteria. A screen separator removes suspended solids greater in size than a predetermined size ranging from about 50 μ to about 150 μ. An electrocoagulation unit electrochemically hydrolyses the waste, causing particles to settle out. A dissolved carbon air flotation has a CO.sub.2 bubbler for separating large particles from small particles by flotation. An anaerobic digester produces biogas. The digester has a biocurtain for growing the bacteria and a heat exchanger for heating the bacteria. The biocurtain surface is convoluted to retain the bacteria. A membrane module removes CO.sub.2. A knock out pot for removes droplets of water. A scrubber removes water vapor, particulates, and contaminant gas. A compressor boosts pressure. A gas chromatograph monitors the biogas composition. A flare skid lowers excess pressure for safety. Biogas is injected into a local pipeline system. A process control is used for controlling the anaerobic waste digestion system.

The present disclosure provides an exemplary process for a system that may remove particulate from industrial water fluids using a Particulate Removal System (PRS). In some aspects, this system may treat water pulled from different Industrial Fluid Systems (IFS) while doing continuous monitoring and quality tests of the water. In some embodiments, the system may use sensors and other technology to allow for the system to periodically self-clean itself allowing for maximum efficiency and accuracy while also cleaning the water from the IFS. In some implementations, the water from the IFS may be filtered through a Particulate Trap Mechanism (PTM) to ensure that particulate including dissolved material has been removed from the water and separated from possible contamination throughout the system. In some aspects the system may be used for continuous and direct measurement of water quality and automatic chemical level adjustment by systems to maintain a desired range or setpoints.

A mixed fluid separator apparatus includes an overload protection chamber that prevents a large and sudden influx of oil from fouling a coalescing separator. To prevent sudden influx of a large concentration of oil from overwhelming the coalescing separator, a separate overload protection chamber is connected to a main coalescing separator apparatus. The overload protection chamber includes a water drain (majority water with some oil) to the main coalescing separator apparatus and an oil overflow (majority oil with some water) to drain excess oil when necessary to prevent overfilling of the coalescing separator apparatus. The overload protection chamber functions to rapidly separate and remove heavy concentrations of oil, protecting the main coalescing separator apparatus.

A system that uses thermal addition, particle size reduction, increasing surface area, pressure reduction and kinetic energy increases to vaporize and dewater wastewater and/or sludge and/or other liquids mixed with entrained solids to produce a cleaned water condensate and a dewatered solid product. The wastewater and/or sludge enters a cylindrical drum through a rotary entrance valve. A rotating hammermill inside a drum with an exterior thermal jacket pulverizes the entering wastewater or sludge with rotating blades that keep the pulverized product against the inside of the drum's inside surface to vaporize water to separate it from solids. The vaporized water is condensed and discharged from the system and a solid product exits the drum via rotary valves. A vacuum is maintained on the drum to enhance the system.

A filtration device includes a continuous first unit including a first membrane that separates a liquid into first permeated and non-permeated liquids, a first adjuster that adjusts a flow rate of the first permeated liquid to be substantially constant, and a first liquid scale that detects a liquid amount, a second unit including a second membrane that separates another liquid into second permeated and non-permeated liquids, a second adjuster that adjusts a flow rate of the second permeated liquid to be substantially constant, and a second liquid scale that detects another liquid amount, a first controller that controls the liquid amount in the first storage tank based on measurement values from continuous two first units or from the continuous first and second units, and a second controller that controls the another liquid amount based on a measurement value from the second unit.

The present invention relates to the use of a particulate mineral material being functionalized with one or more adsorption enhancing agents for scavenging and removing ionic metal contaminants from an aqueous medium. Furthermore, the present invention relates to a corresponding process for scavenging and removing ionic metal contaminants from an aqueous medium as well as to a functionalized particulate mineral material and a process for making such material.

The present invention relates to the treatment of a wastewater stream that is generated from animal processing such as the processing of chicken, beef or pork. More particularly, the present invention relates to the separation of usable protein from an animal processing wastewater stream using a density modifier and a modification of the protein phase density to enhance lipid fat phase separation from protein solids.

In described embodiments, a system of processing poultry plant dissolved air floatation (DAF) float includes a horizontal decanter centrifuge having a weir ring. In conjunction with operating the centrifuge with a laminar flow, adjusted feed rate and polymer dosing, the system allows for production of low moisture solids (<50%) from the poultry plant DAF float and discharge of a clear liquid phase.