Disclosed is an intelligent circulation and allocation control system for multiple surface and ground water resources, including a physical, chemical and biological multi-stage decentralized restoration system, which is respectively connected with a water quality detection and reinjection system, an integrated data processing system, an intelligent safety early warning system, and an asynchronous and self-adaptive dual-regulation optimization control system, the water quality detection and reinjection system is connected with the intelligent safety early warning system, the intelligent safety early warning system is connected with the integrated data processing system, and the integrated data processing system is further connected with the asynchronous and self-adaptive dual-regulation optimization control system. The intelligent circulation and allocation control system is based on an improved wastewater treatment process coupling physical, chemical and biological technologies and combined with an artificial intelligence technology to treat various water sources in a macroscopic water environment and optimize allocation control.

A method of processing thin stillage in an ethanol refining operation is provided. The method comprises treating thin stillage upstream of a concentration or evaporation step with an aid comprising a sorbitan ester of a fatty acid, an ethoxylated sorbitan ester of a fatty acid, or a combination thereof, thereby forming treated thin stillage. The aid may include at least one of sorbitan monooleate, polyoxyethylene sorbitan monostearate, and polyoxyethylene sorbitan monolaurate.

A method of processing thin stillage in an ethanol refining operation is provided. The method comprises treating thin stillage upstream of a concentration or evaporation step with an aid comprising a sorbitan ester of a fatty acid, an ethoxylated sorbitan ester of a fatty acid, or a combination thereof, thereby forming treated thin stillage. The aid may include at least one of sorbitan monooleate, polyoxyethylene sorbitan monostearate, and polyoxyethylene sorbitan monolaurate.

A process for the primary clarification of feeds, including chemically treated flocculated feeds, containing the target biomolecules of interest such as mAbs, mammalian cell cultures, or bacterial cell cultures, using a primary clarification depth filtration device without the use of a primary clarification centrifugation step or a primary clarification tangential flow microfiltration step. The primary clarification depth filtration device contains a porous depth filter having graded porous layers of varying pore ratings. The primary clarification depth filtration device filters fluid feeds, including chemically treated flocculated feeds containing flocculated cellular debris and colloidal particulates having a particle size distribution of approximately about 0.5 μm to 200 μm, at a flow rate of about 10 litres/m.sup.2/hr to about 100 litres/m.sup.2/hr. Kits and methods of using and making the same are also provided.

A process for the primary clarification of feeds, including chemically treated flocculated feeds, containing the target biomolecules of interest such as mAbs, mammalian cell cultures, or bacterial cell cultures, using a primary clarification depth filtration device without the use of a primary clarification centrifugation step or a primary clarification tangential flow microfiltration step. The primary clarification depth filtration device contains a porous depth filter having graded porous layers of varying pore ratings. The primary clarification depth filtration device filters fluid feeds, including chemically treated flocculated feeds containing flocculated cellular debris and colloidal particulates having a particle size distribution of approximately about 0.5 μm to 200 μm, at a flow rate of about 10 litres/m.sup.2/hr to about 100 litres/m.sup.2/hr. Kits and methods of using and making the same are also provided.

Disclosed herein is a method for removing contaminants from an industrial fluid waste. The method comprises the steps of ozofractionating the industrial fluid waste whereby contaminants are oxidised and a foam fractionate is formed; and separating at least a portion of the foam fractionate and any precipitate from the ozofractionated fluid.

A method of treating a waste liquid includes: an aluminum dissolution step of dissolving aluminum in an acidic waste liquid and performing separation into a first treated water and a reduced heavy metal precipitate; a gypsum recovery step of adding a calcium compound to the first treated water at a liquid property of a pH of 4 or less, and performing separation into a second treated water and gypsum; an aluminum and fluorine removal step of adding an alkali to the second treated water and performing separation into a third treated water and a precipitate containing aluminum and fluorine; and a neutralization step of adding an alkali to the third treated water and performing separation into an alkali neutralization treated water and a neutralized precipitate of a heavy metal hydroxide.

The present invention provides a kind of an integrated sewage treatment equipment for paper mill, which belongs to the technical field of sewage treatment, includes a box body, and the box body is arranged a water injection gap on the upper part at one side, the bottom of the box body is connected with a drainage pipe, and a filter assembly is arranged inside the box body movably, and the inner wall of the box body is equipped with a limit component which provides guidance for the movement of the filter assembly; the filter assembly includes several concentrically arranged annular plates, and two adjacent groups of annular plates are connected by a netting. The bottom of the annular plate is equipped with a chemical dosing component, and the inner side of the innermost annular plate is equipped with an adapter sleeve.

A method includes: (1) using a chelating agent, extracting divalent ions from a brine solution as complexes of the chelating agent and the divalent ions; (2) using a weak acid, regenerating the chelating agent and producing a divalent ion salt solution; and (3) introducing carbon dioxide to the divalent ion salt solution to induce precipitation of the divalent ions as a carbonate salt. Another method includes: (1) combining water with carbon dioxide to produce a carbon dioxide solution; (2) introducing an ion exchanger to the carbon dioxide solution to induce exchange of alkali metal cations included in the ion exchanger with protons included in the carbon dioxide solution and to produce a bicarbonate salt solution of the alkali metal cations; and (3) introducing a brine solution to the bicarbonate salt solution to induce precipitation of divalent ions from the brine solution as a carbonate salt.

An ammonia stripper (32) and method for stripping ammonia from ammonia-containing water is described, comprising an ammonia-containing water inlet (56), a steam inlet (70), and a forced air inlet (82), and an ammonia-containing gas outlet (36) and a wastewater outlet (72). The steam and air contact the ammonia-containing water in counter-flow to release ammonia from the ammonia-containing water. The ammonia stripper further comprises a steam and air mixing duct (200) shaped to create turbulence in the steam and air flow to promote mixing of the steam and air flow prior to contacting the ammonia-containing water. Also described is an ammonia stripper and method comprising a precipitation unit for precipitating solids from the ammonia-containing water prior to the inlet, and an ammonia stripper and method comprising a steam flash vessel for generating steam from the wastewater produced by the ammonia stripper for recycling into the ammonia stripper. Further described are thermal destructors for destroying ammonia in ammonia-containing gas from an ammonia stripper; and a method of removing ammonia from ammonia-containing gas wherein ammonia-containing gas is drawn from the ammonia-containing gas outlet and returned into the ammonia stripper to mix with the forced air entering the ammonia stripper.