Supply-chain environmental effects of wastewater utilities
Bibliographic Data
| ID | 15550108 |
|---|---|
| Authors | Jennifer Stokes-Draut (0000-0003-0240-1361, University of California, Berkeley, corresponding author), Jennifer R Stokes, Arpad Horvath (0000-0003-1340-7099, University of California, Berkeley) |
| Year | 2010 |
| Volume | 5 |
| Issue | 1 |
| Pages | 014015-014015 |
| Publication date | 2010-01-01 |
| Peer Reviewed | Yes |
| Open Access | Yes |
| Type | ARTICLE |
| Venue | Environmental Research Letters (JOURNAL) |
| Journal identifiers | ISSN: 1748-9326 • E-ISSN: 1748-9326 |
| Publisher | IOP Publishing (PUBLISHER • GB) |
| DOI | 10.1088/1748-9326/5/1/014015 |
| OpenAlex | W2019153158 |
| Language | EN |
| Citations received | 6 |
| References cited | 15 |
This letter describes a comprehensive modeling framework and the Wastewater-Energy Sustainability Tool (WWEST) designed for conducting hybrid life-cycle assessments of the wastewater collection, treatment, and discharge infrastructure in the United States. Results from a case study treatment plant which produces electricity using methane offgas are discussed. The case study system supplements influent with 'high-strength organic waste' to augment electricity production. The system balance is 55 kg of greenhouse gases per million liters of wastewater. Sensitivity analysis confirms that reusing biogas from anaerobic digestion for electricity reduces life-cycle greenhouse gas emissions by nine times. When biogas is captured and reused for electricity, material production (e.g., chemicals and pipes) and the corresponding supply chains, rather than energy production, are responsible for most of the environmental effects. When biogas is flared, the material and energy production contributions are similar
Anaerobic digestion · Biogas · Business · Electricity · Electricity generation · Greenhouse gas · Life-cycle assessment · Methane · Production (economics · Reuse · Sewage treatment · Supply chain · Sustainability · Waste management · Wastewater · Chemistry · Engineering · Environmental Impact and Sustainability · Environmental Science · Wastewater Treatment and Reuse · Water-Energy-Food Nexus Studies · Environmental Engineering
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| Unique citing works | 6 |
|---|---|
| Citations per year | 0.43 |
| Citation span | 2012 - 2023 (12) |
| Citation velocity | historical |
| Highly cited | No |
| Citation types | Neutral: 6 |