2025
Remediation of brine spills by soybean fiber-activated materials
Contributor/Checkoff:
Category:
Sustainable Production
Keywords:
Soil healthWater supply
Parent Project:
This is the first year of this project.
Lead Principal Investigator:
Jiale Xu, North Dakota State University
Co-Principal Investigators:
Project Code:
NDSC_2025_New Uses 11
Contributing Organization (Checkoff):
Institution Funded:
Brief Project Summary:
Brine spills from oil and gas production are one of the most critical problems for North Dakota. However, billions of US dollars have been invested into brine remediation for soil and groundwater, but traditional treatment technologies failed to effectively and cheaply remove salts, mostly sodium and chloride. This project aims to utilize soybean hulls to develop novel adsorption materials, carbon quantum dots, specifically for removing sodium and chloride, the major salt ions from brine spills. For soybean growers, the soybean hulls can be used to fabricate novel and advanced adsorbents for brine remediation, highly increasing profits.
Unique Keywords:
#brine spills, #carbon quantum dots, #remediation, #soybean hulls
Information And Results
Project Summary

Brine spill is a serious problem in North Dakota (ND) from the oil and gas industry. The high concentration of salt at hundreds of grams per liter can have a highly negative impact on soil and groundwater quality. Only in the first two weeks of 2024, there have been five cases of brine spills in ND. Among the treatment technologies, one of the most realistic, reliable, and efficient technologies is adsorption through functionalized materials. Carbon quantum dots (CQDs) are emerging advanced materials that feature excellent physical and chemical properties, which can be used for brine remediation. Therefore, we proposed to utilize soybean fiber waste to produce CQDs to adsorb and extract both sodium and chloride ions in brine-contaminated groundwater. Briefly, soybean fiber or other materials are processed by hydrothermal treatment and mixed with activators to enhance the generation of active functional groups. Then, these powers will be pressed to form an immobilized material for practical treatment. The prepared novel materials will also be characterized by a wide range of advanced instruments to demonstrate their excellent properties. Lastly, both simulated and real brine solutions will be treated with CQD materials from soybean waste. Major benefits include exploring a new application for soybean waste to produce high-value material, applying soybean-based material for brine treatment that is in value of billions of dollars, and expanding new lands for soybean production.

Project Objectives

(1) This project will utilize soybean hulls to prepare a novel material carbon quantum dots.
(2) This project will apply the novel material to achieve 99% removal of salts in brine spills in ND.
(3) The cost of brine spill treatment will be lower using this method than other technologies.

Project Deliverables

(1) The results will be delivered in the reports for this fund.
(2) The results will be summarized in the thesis of the graduate student.
(3) The deliverables also include a website for this system and a poster.
(4) The findings will also be summarized in journal publications and presentations at conferences.

Progress Of Work

Final Project Results

Benefit To Soybean Farmers

(1) Carbon quantum dots are highly valued. This proposal can help farmers to make more profits using soybean waste materials.
(2) This project can remediate brine spills, a widespread issue for ND.
(3) This system will also convert polluted land to safe areas to expand soybean production.

The United Soybean Research Retention policy will display final reports with the project once completed but working files will be purged after three years. And financial information after seven years. All pertinent information is in the final report or if you want more information, please contact the project lead at your state soybean organization or principal investigator listed on the project.