Hybrid electrochemical and membrane-based processes for treating water with high silica concentrations

A water treatment system for removing silica from feed water, comprising:

• an electrocoagulation unit configured to receive feed water having a silica concentration greater than 80 ppm;
• a solids removal unit in fluid communication with said electrocoagulation unit;
• an electrodialysis reversal unit in fluid communication with said solids removal unit;
• an ion-exchange unit in fluid communication with said electrodialysis reversal unit;
• an electroacidification unit in fluid communication with said ion-exchange unit;
• a reverse osmosis unit in fluid communication with said electroacidification unit;
• and
• an electrodeionization unit in fluid communication with said reverse osmosis unit;
• wherein said system is configured to produce ultra-pure water with a silica concentration of less than 0.030 ppm.

A method for treating feed water to remove silica, comprising:

• measuring a silica concentration of said feed water;
• selecting a treatment process based on said measured silica concentration;
• routing said feed water through a series of treatment units based on said selected treatment process;
• monitoring and adjusting operational parameters of each treatment unit in real-time;
• and
• producing ultra-pure water with a silica concentration of less than 0.030 ppm.

The method of claim 8, wherein said treatment process is selected from:

• a first process for feed water with silica concentration of 1 to 30 ppm;
• a second process for feed water with silica concentration of 31 to 80 ppm;
• and
• a third process for feed water with silica concentration greater than 80 ppm.

A control system for optimizing a water treatment process, comprising:

• a plurality of sensors configured to measure water quality parameters including silica concentration at various points in said treatment process;
• a controller configured to receive data from said sensors and adjust operational parameters of treatment units in real-time;
• and
• a user interface for displaying water quality data and allowing manual override of said controller.

A method for dynamically treating feed water with varying silica concentrations, comprising:

• continuously measuring said silica concentration of said feed water;
• automatically adjusting said treatment process based on said measured silica concentration;
• activating or deactivating specific treatment units based on said measured silica concentration;
• and
• optimizing operational parameters of active treatment units to maximize water recovery and minimize chemical consumption.

A method for enhancing silica removal in a water treatment system, comprising:

• introducing a silica-specific adsorbent material into said feed water prior to said electrocoagulation unit;
• adjusting said pH of said water to optimize silica adsorption;
• removing said adsorbent material and adsorbed silica in said solids removal unit;
• and
• further treating said water through subsequent units to achieve ultra-pure water quality.

A modular water treatment system for removing silica, comprising:

• a base module including an electrodialysis reversal unit, a reverse osmosis unit, and an electrodeionization unit;
• a supplementary module including an ion-exchange unit and an electroacidification unit;
• an advanced module including an electrocoagulation unit and a solids removal unit;
• and
• a control system configured to activate and deactivate modules based on feed water silica concentration.

A water treatment system with enhanced energy efficiency, comprising:

• an energy recovery device coupled to said concentrate stream of said reverse osmosis unit;
• a heat exchanger system for transferring heat between incoming feed water and treated water;
• solar panels for powering said electrocoagulation and electrodialysis reversal units;
• and
• a smart control system for optimizing energy usage across all treatment units.