Life cycle environmental and economic assessment of a LID-BMP treatment train system: A case study in China

Xu, Changqing; Hong, Jinglan; Jia, Haifeng; Liang, Shidong; Xu, Te

doi:10.1016/j.jclepro.2017.02.086

Cited by 80 publications

(29 citation statements)

References 22 publications

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“…Among all material used in this Sponge City projects, PVC pipes and impermeable membranes (primarily made of polyethylene (PE)) take significant proportions, in total carbon emission which are, even though the consumption amount of these two materials is not much compared to concrete and other materials. This result is consistent with the research of Xu et al [52], which showed that the consumption of PVC and fabric contributed significantly to carbon emissions from the LID-BMPs construction phase. The production process of plastics is complicated, thus the amount of carbon emissions from their production phase is relatively huge.…”

Section: Carbon Emissionssupporting

confidence: 93%

Prediction of Life Cycle Carbon Emissions of Sponge City Projects: A Case Study in Shanghai, China

Lin

Ren

et al. 2018

Sustainability

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In recent years, China has been vigorously carrying out the planning and implementation of Sponge City. Since the implementation of Sponge City projects involves substantial materials and energy consumption, it is significant to account corresponding carbon emissions and sinks. The existed studies about carbon emission of stormwater management measures, however, are not able to take the whole life cycle and different facilities into consideration. Therefore, this study develops a comprehensive accounting model based on Intergovernmental Panel on Climate Change (IPCC) guidelines and life cycle assessment (LCA) method to predict carbon emissions and carbon sinks of Sponge City projects more comprehensively and accurately. The model is applied to an actual residential community in Shanghai as a case study. Results show that the total indirect carbon emission is estimated to be 774,277 kg CO2 eq during a 30-year lifespan, among which carbon emissions from operation and maintenance phases are 2570 kg CO2 eq/year and 7309 kg CO2 eq/year, respectively, both directly proportional to the service life of the facilities. Three kinds of achievable carbon sinks are carbon sequestration in green space (5450 kg CO2 eq/year), carbon sink from rainwater utilization (15,379 kg CO2 eq/year) and carbon sink from runoff pollutant removal (19,552 kg CO2 eq/year). Carbon neutrality is expected to be reached after approximately 19 years. The established carbon emission accounting model can contribute to better planning and construction of Sponge City in China and enhance further energy conservation and carbon emission reduction.

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Section: Carbon Emissionssupporting

confidence: 93%

Prediction of Life Cycle Carbon Emissions of Sponge City Projects: A Case Study in Shanghai, China

Lin

Ren

et al. 2018

Sustainability

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“…Examples of this can be found in literature on the sustainability of GI. Comprehensive life cycle cost-benefit assessments where both multiple functions and embedded material impacts are included are typically found only for single technologies or installations, such as a green roof project (Blackhurst, Hendrickson, & Matthews, 2010), a stormwater treatment trail (Xu, Hong, Jia, Liang, & Xu, 2017), or a rain garden (Flynn & Traver, 2013). When assessments are scaled up to compare alternative technologies, focus typically lies on either benefits/performance or impacts/costs: Assessments of multiple performance for alternative GI solutions on a specific site tend to not fully consider life cycle impacts (Fioretti, Palla, Lanza, & Principi, 2010;William et al, 2016).…”

mentioning

confidence: 99%

Multi‐functionality of nature‐based and other urban sustainability solutions: New York City study

et al. 2018

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In an increasingly urban world, developing sustainable cities is crucial for global sustainability. Urban nature‐based solutions (NBS), such as green infrastructure, are often promoted for their potential to provide several urban services. These include stormwater mitigation, improving energy efficiency of buildings, and carbon emissions mitigation, but few studies have compared the multifunctionality of NBS to conventional urban solutions providing similar services. Fewer yet have acknowledged the indirect resource (specifically climate, land, energy, water [CLEW] nexus) impacts that these solutions may have. This paper analyzes these aspects, employing a simple CLEW nexus accounting framework, and attempts a consistent comparison across different resource systems. The comparison includes direct and indirect impacts of a set of stylized—and diverse—solutions, each with different primary objectives: green roofs, representing a multifunctional urban NBS; permeable pavements targeting mitigation of stormwater flows; window retrofits targeting energy efficiency; and rooftop PV installations targeting CO2 emissions mitigation. The results highlight both the direct and total (CLEW nexus) impacts of green roofs on stormwater retention, energy use, and CO2 emissions. However, also for the studied conventional solutions with primarily a single direct function, CLEW nexus impacts spread across all measured dimensions (energy, water, and CO2) to varying degrees. Although the numerical results are indicative and uncertainty needs to be further assessed, we suggest that the development of this type of multifunctional, multisystem assessment can assist urban sustainability planning, with comprehensive and consistent comparison of diverse (NBS and conventional) solutions.

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“…Further recommendations include, "urging local governments to adopt sponge city regulations and permits to alleviate water quality and urban pluvial flooding issues, fully measuring and accounting for economic and environmental benefits, A life cycle assessment of a GI treatment train in China showed that, "climate change, human toxicity, terrestrial ecotoxicity, freshwater ecotoxicity, marine ecotoxicity and fossil depletion dominantly contributed to the overall environmental effect. (Xu et al, 2017)" The sustainability benefits of GI designs, including rain gardens, green roofs, porous pavements, and tree plantings, was evaluated using emergy analysis. Dominant inputs for all systems were stone and soil.…”

Section: Waveform Airborne Laser Scanning (Lidar) Ismentioning

confidence: 99%

Sustainability

DiGiovanni

2018

Water Environment Research

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Life cycle environmental and economic assessment of a LID-BMP treatment train system: A case study in China

Cited by 80 publications

References 22 publications

Prediction of Life Cycle Carbon Emissions of Sponge City Projects: A Case Study in Shanghai, China

Prediction of Life Cycle Carbon Emissions of Sponge City Projects: A Case Study in Shanghai, China

Multi‐functionality of nature‐based and other urban sustainability solutions: New York City study

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