| Title |
Evaluating Sustainable Development Pathways for Protein- and Peptide-Based Bioadsorbents for Phosphorus Recovery from Wastewater |
| ID_Doc |
12441 |
| Authors |
Hutchison, JM; Hussein, FB; Mayer, BK |
| Title |
Evaluating Sustainable Development Pathways for Protein- and Peptide-Based Bioadsorbents for Phosphorus Recovery from Wastewater |
| Year |
2023 |
| Published |
Environmental Science & Technology, 57.0, 43 |
| DOI |
10.1021/acs.est.3c04016 |
| Abstract |
Recovering phosphate (P) from point sources such as wastewater effluent is a priority in order to alleviate the impacts of eutrophication and implement a circular economy for an increasingly limited resource. Bioadsorbents featuring P-binding proteins and peptides offer exquisite P specificity and sensitivity for achieving ultralow P concentrations, i.e., <100 mu g P L-1, a discharge limit that has been implemented in at least one treatment facility in nine U.S. states. To prioritize research objectives for P recovery in wastewater treatment, we compared the financial and environmental sustainability of protein/peptide bioadsorbents to those of LayneRT anion exchange resin. The baseline scenario (reflecting lab-demonstrated performance at a full-scale implementation) had costs that were 3 orders of magnitude higher than those for typical wastewater treatment. However, scenarios exploring bioadsorbent improvements, including increasing the P-binding capacity per unit volume by using smaller P-selective peptides and nanoparticle base materials and implementing reuse, dramatically decreased median impacts to $1.06 m(-3) and 0.001 kg CO2 equiv m(-3); these values are in line with current wastewater treatment impacts and lower than the median LayneRT impacts of $4.04 m(-3) and 0.19 kg CO2 equiv m(-3). While the financial viability of capturing low P concentrations is a challenge, incorporating the externalities of environmental impacts may provide a feasible path forward to motivate ultralow P capture. |
| Author Keywords |
Enforcement and Compliance History Online (ECHO); LayneRThybrid anion exchange resin; immobilization; lifecycle assessment (LCA); global warming potential (GWP); techno-economic assessment (TEA) |
| Index Keywords |
Index Keywords |
| Document Type |
Other |
| Open Access |
Open Access |
| Source |
Science Citation Index Expanded (SCI-EXPANDED) |
| EID |
WOS:001094330100001 |
| WoS Category |
Engineering, Environmental; Environmental Sciences |
| Research Area |
Engineering; Environmental Sciences & Ecology |
| PDF |
https://doi.org/10.1021/acs.est.3c04016
|