Fig. 1: System boundaries for lifecycle and techno-economic synthesis.
From: Life cycle and techno-economic assessment of bioresource production from wastewater
System boundaries and components for the different scenarios considered in this techno-economic and lifecycle analysis. The reactors, product separation, and product distribution for each process are different. Activated Sludge Process (ASP), Anaerobic Digestion (AD), Aqueous Phase (AP), Biochar (BCh), Biocrude (BC), Biogas (BG), Diesel (Ds), Digestate (Dg), Gasification (Gs), Glycerol (Gly), Heat & Electricity (H&E), Hydrochar (HC), Hydrothermal Carbonization (HTC), Hydrothermal Liquefaction (HTL), Incineration (Inc), Inorganic Ash (Ash), In situ-Transesterification (InTE), Land Application (LA), Landfill (LF), Lignocellulosic Residuals (Res), Oil and Lipids (O&L), Oil & Lipid Extraction (OLE), Py-oil (PO), Pyrolysis (Py), Return Activated Sludge (RAS), Syngas (SG), Wastewater Treatment Plant Headworks (HW).
