System and method for treating hydrocarbon-containing feed streams

A system, comprising:

• a pretreatment system disposed within a water processing system, wherein the pretreatment system is configured to:
• receive an acidic stream having an acidic pH;
• receive a feed stream comprising oil and brine;
• and
• generate an acidified feed stream based on the acidic stream and the feed stream and output the acidified feed stream along an acidified feed stream flow path;
• and
• wherein the pretreatment system comprises one or more filters fluidly disposed along the acidified feed stream flow path, and the one or more filters are configured to:
• receive the acidified feed stream via the acidified feed stream flow path;
• separate the acidified feed stream into a hydrocarbon stream and a first brine stream, wherein the first brine stream comprises a plurality of minerals, and the hydrocarbon stream comprises the oil, water, and suspended solids;
• and
• wherein the pretreatment system is configured to:
• receive an alkaline stream having an additional pH, wherein the additional pH is greater than the acidic pH;
• and
• provide the alkaline stream to the hydrocarbon stream downstream of the one or more filters to generate an alkaline hydrocarbon stream;
• and
• a hydrocarbon removal system disposed downstream from and fluidly coupled to the one or more filters, wherein the hydrocarbon removal system comprises one or more additional filters configured to:
• receive the alkaline hydrocarbon stream;
• and
• filter out one or more solids from the alkaline hydrocarbon stream to generate a recovered oil stream comprising the oil;
• and
• a mineral removal system fluidly coupled to a disposed downstream from the one or more filters and configured to receive and remove the plurality of minerals from the first brine stream and to output a concentrated brine stream, wherein the mineral removal system comprises at least one mineral removal unit configured to remove a first portion of the plurality of minerals from the first brine stream and to generate a second brine stream;
• and
• a hydrogen chloride (HCl) and sodium hydroxide (NaOH) production system disposed downstream from and fluidly coupled to the mineral removal system, wherein the HCl and NaOH production system comprises an electrodialysis bipolar membrane (EDBM) configured to receive the concentrated brine stream and to generate and HCl stream and a NaOH stream from the concentrated brine stream.