Removal of organic compounds from water: life cycle environmental impacts and economic costs of the Arvia process compared to granulated activated carbon

2015 ◽  
Vol 89 ◽  
pp. 203-213 ◽  
Author(s):  
Harish K. Jeswani ◽  
Haruna Gujba ◽  
Nigel W. Brown ◽  
Edward P.L. Roberts ◽  
Adisa Azapagic
Keyword(s):  
Activated Carbon ◽  
Life Cycle ◽  
Environmental Impacts ◽  
Organic Compounds ◽  
Economic Costs ◽  
Granulated Activated Carbon

scholarly journals The Impact Assessment of Campus Buildings Based on a Life Cycle Assessment–Life Cycle Cost Integrated Model

2019 ◽  
Vol 12 (1) ◽  
pp. 294 ◽  
Author(s):  
Zhuyuan Xue ◽  
Hongbo Liu ◽  
Qinxiao Zhang ◽  
Jingxin Wang ◽  
Jilin Fan ◽  
...  
Keyword(s):  
Life Cycle Assessment ◽  
Life Cycle ◽  
Environmental Impacts ◽  
Life Cycle Cost ◽  
Electric Energy ◽  
Integrated Model ◽  
Economic Costs ◽  
Analytic Hierarchy ◽  
The Sustainable Development ◽  
The Impact

The development of higher education has led to an increasing demand for campus buildings. To promote the sustainable development of campus buildings, this paper combines social willingness-to-pay (WTP) with the analytic hierarchy process (AHP) based on the characteristics of Chinese campus buildings to establish a life cycle assessment–life cycle cost (LCA–LCC) integrated model. Based on this model, this paper analyses the teaching building at a university in North China. The results show that the environmental impacts and economic costs are largest in the operation phase of the life cycle, mainly because of the use of electric energy. The environmental impacts and economic costs during the construction phase mainly come from the building material production process (BMPP); in this process, steel is the main source. Throughout the life cycle, abiotic depletion-fossil fuel potential (ADP fossil) and global warming potential (GWP) are the most prominent indexes. Further analysis shows that these two indexes should be the emphases of similar building assessments in the near future. Finally, this study offers suggestions for the proposed buildings and existing buildings based on the prominent problems found in the case study, with the aim to provide reference for the design, construction, and operation management of similar buildings.

scholarly journals Quantifying Environmental and Economic Impacts of Highly Porous Activated Carbon from Lignocellulosic Biomass for High-Performance Supercapacitors

Energies ◽  
2022 ◽  
Vol 15 (1) ◽  
pp. 351
Author(s):  
Yuxi Wang ◽  
Jingxin Wang ◽  
Xufeng Zhang ◽  
Debangsu Bhattacharyya ◽  
Edward M. Sabolsky
Keyword(s):  
Activated Carbon ◽  
Life Cycle ◽  
Environmental Impacts ◽  
Lignocellulosic Biomass ◽  
Activated Carbons ◽  
Economic Impacts ◽  
Economic Feasibility ◽  
Plant Production ◽  
Base Case ◽  
Selling Price

Activated carbons (AC) from lignocellulosic biomass feedstocks are used in a broad range of applications, especially for electrochemical devices such as supercapacitor electrodes. Limited studies of environmental and economic impacts for AC supercapacitor production have been conducted. Thus, this paper evaluated the environmental and economic impacts of AC produced from lignocellulosic biomass for energy-storage purposes. The life cycle assessment (LCA) was employed to quantify the potential environmental impacts associated with AC production via the proposed processes including feedstock establishment, harvest, transport, storage, and in-plant production. A techno-economic model was constructed to analyze the economic feasibility of AC production, which included the processes in the proposed technology, as well as the required facility installation and management. A base case, together with two alternative scenarios of KOH-reuse and steam processes for carbon activation, were evaluated for both environmental and economic impacts, while the uncertainty of the net present value (NPV) of the AC production was examined with seven economic indicators. Our results indicated that overall “in-plant production” process presented the highest environmental impacts. Normalized results of the life-cycle impact assessment showed that the AC production had environmental impacts mainly on the carcinogenics, ecotoxicity, and non-carcinogenics categories. We then further focused on life cycle analysis from raw biomass delivery to plant gate, the results showed that “feedstock establishment” had the most significant environmental impact, ranging from 50.3% to 85.2%. For an activated carbon plant producing 3000 kg AC per day in the base case, the capital cost would be USD 6.66 million, and annual operation cost was found to be USD 15.46 million. The required selling price (RSP) of AC was USD 16.79 per kg, with the discounted payback period (DPB) of 9.98 years. Alternative cases of KOH-reuse and steam processes had GHG emissions of 15.4 kg CO2 eq and 10.2 kg CO2 eq for every 1 kg of activated carbon, respectively. Monte Carlo simulation showed 49.96% of the probability for an investment to be profitable in activated carbon production from lignocellulosic biomass for supercapacitor electrodes.

Waste polyethylene terephthalate (PET) plastics-derived activated carbon for CO2 capture: a route to a closed carbon loop

2020 ◽  
Vol 22 (20) ◽  
pp. 6836-6845
Author(s):  
Junyao Wang ◽  
Xiangzhou Yuan ◽  
Shuai Deng ◽  
Xuelan Zeng ◽  
Zhi Yu ◽  
...  
Keyword(s):  
Activated Carbon ◽  
Life Cycle ◽  
Environmental Impacts ◽  
Polyethylene Terephthalate ◽  
Co2 Capture ◽  
Comprehensive Investigation ◽  
Temperature Swing ◽  
Waste Polyethylene

This study assessed waste PET-derived activated carbon coupled with temperature swing CO2 adsorption to provide a comprehensive investigation on the potential life cycle environmental impacts.

scholarly journals Environmental Life Cycle Assessment of Thermal Insulation Tiles for Flat Roofs

Materials ◽  
2019 ◽  
Vol 12 (16) ◽  
pp. 2595 ◽  
Author(s):  
Raul Gomes ◽  
José D. Silvestre ◽  
Jorge de Brito
Keyword(s):  
Life Cycle Assessment ◽  
Life Cycle ◽  
Environmental Impacts ◽  
Thermal Insulation ◽  
Raw Materials ◽  
Environmental Costs ◽  
Economic Costs ◽  
Life Cycle Stages ◽  
Cradle To Gate ◽  
Flat Roofs

Envelope insulation and protection is an important technical solution to reduce energy consumption, exterior damage, and environmental impacts in buildings. Thermal insulation tiles are used simultaneously as thermal insulation of the building envelope and protection material of under layers in flat roofs systems. The purpose of this research is to assess the environmental impacts of the life cycle of thermal insulation tiles for flat roofs. This research presents the up-to-date “cradle to gate” environmental performance of thermal insulation tiles for the environmental categories and life-cycle stages defined in European standards on environmental evaluation of building. The results presented in this research were based on site-specific data from a Portuguese factory and resulted from a consistent methodology that is here fully described, including the raw materials extraction and production, and the modelling of energy and transport processes at the production stage of thermal insulation tiles. These results reflect the weight of the raw-materials within the production process of thermal insulation tiles in all environmental categories and show that some life cycle stages, such as transportation of raw materials (A2) and packaging and packaging waste (A3.1 and A3.3, respectively), may not be discarded in a cradle to gate study of a construction material because they can make a significant contribution to some environmental categories. Moreover, complementary results regarding the economic, environmental, and energy performance Life Cycle Assessment (LCA) of flat roofs solutions incorporating the thermal insulation tiles studied showed that the influence of the economic costs on the total aggregated costs of these solutions is much higher than that of the environmental costs due to the lower environmental costs of the thermal insulation tiles at the product stage (A1–A3). These costs influenced the corresponding percentage of the environmental costs (between 14% and 18%) and the percentage of the economic costs (between 70% and 75%) in the total aggregated (environmental, economic, and energy) net present value (NPV). Finally, a complementary “cradle to cradle” environmental LCA discussion is presented including the following additional life cycle stages: maintenance and replacement (B2–B4), operational energy use (B6), and end-of-life stage and benefits and loads beyond the system boundary (C1–C4 and D).

Production of activated carbon from cocoa pods: Investigating benefits and environmental impacts through analytical chemistry techniques and life cycle assessment

2021 ◽  
Vol 288 ◽  
pp. 125464
Author(s):  
Rufis Fregue Tagne Tiegam ◽  
Donald Raoul Tchuifon Tchuifon ◽  
Remo Santagata ◽  
Paul Alain Kouteu Nanssou ◽  
Solomon Gabche Anagho ◽  
...  
Keyword(s):  
Analytical Chemistry ◽  
Life Cycle Assessment ◽  
Activated Carbon ◽  
Life Cycle ◽  
Environmental Impacts

Cradle-to-gate life cycle assessment of ships: A case study of Panamax bulk carrier

2018 ◽  
Vol 233 (2) ◽  
pp. 670-683 ◽  
Author(s):  
Dong Duc Tuan ◽  
Cai Wei
Keyword(s):  
Life Cycle Assessment ◽  
Life Cycle ◽  
Impact Assessment ◽  
Environmental Impacts ◽  
Organic Compounds ◽  
Assessment Method ◽  
Environmental Indicators ◽  
Bulk Carrier ◽  
Cradle To Gate ◽  
Material Extraction

Seaborne transport plays an important role in global transportation, and ships’ emissions are worth considering. By applying life cycle assessment method, the environmental impacts of ships could be evaluated. Life cycle assessment is an effective tool as this method provides a holistic perspective of a product or a service in its life cycle. In an attempt to clarify emissions released from the cradle-to-gate life cycle of ships, especially from processes in shipbuilding which were not considered adequately from some previous studies, this study conducts life cycle assessment method to assess the environmental impacts of a Panamax bulk carrier from raw material extraction to shipbuilding phase. In order to clarify life cycle emissions, some helpful mathematical formulas are also established. Ten environmental categories of CML 2001 life cycle impact assessment methodology that are relevant to the marine context are chosen for evaluating the environmental impacts. To obtain emission inventory and impact assessment results, a life cycle assessment software— GaBi—has been used. The results show that material extraction and production phase accounts for more than 85% carbon dioxide, carbon monoxide, nitrous oxide, and methane, while shipbuilding phase is responsible for 99.91% volatile organic compounds, 36.08% non-methane organic compounds, and 26.76% particulate matter emissions. In relation to environmental indicators, material consumption is much more significant than other processes and accounts for more than 86% of values of 10 environmental categories. This study is useful as it provides necessary information for life cycle assessment in the shipping industry in the future.

Removal of Trace Metals From Wastewater by Activated Carbon

1973 ◽  
Vol 8 (1) ◽  
pp. 110-121
Author(s):  
A. Netzer ◽  
J.D. Norman
Keyword(s):  
Activated Carbon ◽  
Trace Metals ◽  
Organic Compounds ◽  
The Other ◽  
Published Data ◽  
Ph Adjustment ◽  
Nickel Silver ◽  
Ph Range ◽  
Carbon Treatment ◽  
Cobalt Copper

Abstract The merits of activated carbon for removal of organic compounds from wastewater have been well documented in the literature. On the other hand there is a lack of published data on the use of activated carbon for the removal of trace metals from wastewater. Experiments were designed to assess the possibility that activated carbon treatment would remove aluminum, cadmium, chromium, cobalt, copper, iron, lead, manganese, mercury, nickel, silver and zinc from wastewater. All metals studied were tested over the pH range 3-11. Greater than 99.5% removal was achieved by pH adjustment and activated carbon treatment for most of the metals tested.

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