Methods and systems for treating aqueous effluent

A method for managing an aqueous effluent, the method comprising:

• receiving an aqueous effluent;
• filtering impurities and/or chemical treatment for the removal of impurities from the aqueous effluent to arrive at a filtered aqueous effluent;
• reducing a temperature of the received filtered aqueous effluent to arrive at a first cooled aqueous effluent;
• determining a concentration of chemical oxygen demand (COD) in a first analysis influent stream selected from the aqueous effluent, the filtered aqueous effluent, and/or the first cooled aqueous effluent, and/or determining a concentration of total organic carbon (TOC) in the first analysis influent stream;
• determining an operation temperature for use by a first freeze concentrator assembly, the operation temperature determined based on the concentration of chemical oxygen demand (COD) and/or the concentration of total organic carbon (TOC);
• providing the operation temperature and the first cooled aqueous effluent to the first freeze concentrator assembly;
• converting the first cooled aqueous effluent received by the first freeze concentrator assembly to a first solution of first ice slurry and first concentrated isopropyl alcohol;
• separating the first ice slurry from the first concentrated isopropyl alcohol;
• converting the first ice slurry to a first liquid output;
• and
• removing impurities from the first liquid output to arrive at a first final output.

A system for managing an aqueous effluent, the system comprising:

• a filtration assembly, the filtration assembly including:
• a filtration assembly input configured to receive an aqueous effluent;
• a filter unit configured to filter impurities from the aqueous effluent, and/or a chemical treatment unit configured to remove impurities to arrive at a filtered aqueous effluent;
• and
• a filtration assembly output configured to provide the filtered aqueous effluent to a first cooling assembly;
• the first cooling assembly, the first cooling assembly including:
• a first cooling assembly input configured to receive the filtered aqueous effluent from the filtration assembly;
• a first cooling unit configured to reduce a temperature of the received filtered aqueous effluent to arrive at a first cooled aqueous effluent;
• and
• a first cooling assembly output configured to provide the first cooled aqueous effluent to a first analysis assembly and/or to a first freeze concentrator assembly;
• the first analysis assembly, the first analysis assembly including:
• a first analysis assembly input configured to receive a first analysis influent stream selected from the aqueous effluent, the filtered aqueous effluent, and/or the first cooled aqueous effluent;
• a first analyzer configured to determine at least one of the following:
• a concentration of chemical oxygen demand (COD) in the first analysis influent stream;
• a concentration of total organic carbon (TOC) in the first analysis influent stream;
• and a concentration of isopropyl alcohol in the first analysis influent stream;
• a first operation temperature processor configured to determine an operation temperature for a first freeze concentrator assembly, the operation temperature determined based on the results of the first analyzer;
• and
• a first analysis assembly output configured to provide the operation temperature determined by the operation temperature processor to the first freeze concentrator assembly;
• the first freeze concentrator assembly, the first freeze concentrator assembly including:
• a first freeze concentrator assembly input configured to receive the first cooled aqueous effluent from the first analysis assembly output;
• a first freeze concentrator configured to convert the first cooled aqueous effluent received by the first freeze concentrator assembly input to a first solution of first ice slurry and first concentrated isopropyl alcohol;
• and
• a first freeze concentrator assembly output configured to provide the first solution of first ice slurry and first concentrated isopropyl alcohol to a first separating assembly;
• the first separating assembly, the first separating assembly including:
• a first separating assembly input configured to receive the first solution of first ice slurry and first concentrated isopropyl alcohol from the first freeze concentrator assembly output;
• a first separating unit configured to separate the first ice slurry from the first concentrated isopropyl alcohol;
• and
• a first separating assembly output configured to provide at least a portion of the first ice slurry to a first warming assembly;
• and
• the first warming assembly, the first warming assembly including:
• a first warming assembly input configured to receive the first ice slurry from the first separating assembly output;
• a warming unit configured to convert the ice slurry to a liquid output;
• and
• a first warming assembly output configured to provide the liquid output.