Development &amp; Use of Renewable Energy in Sewage Treatment Facilities

Li, Ricky C.L.; Dao, Keith K.M.; Ho, David W.H.; Lui, Sam C.L.

doi:10.1016/j.egypro.2019.01.143

Cited by 9 publications

(2 citation statements)

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“…The usage of fossil fuels and other non-renewable energy sources is known to significantly increase emissions of carbon dioxide [13]. However, renewable energy capacity is projected to grow by 50% worldwide between 2019 and 2024, which may lessen the impact of greenhouse gas emissions on ecosystems and people's well-being [14,15]. In this regard, one corpus of literature has shown that a decrease in CO 2 emissions occurs throughout the world when renewable energy (REN) sources are used [11,16].…”

Section: Introductionmentioning

confidence: 99%

Renewable Adoption, Energy Reliance, and CO2 Emissions: A Comparison of Developed and Developing Economies

Bi,

Guo,

Khan

2024

Energies

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Emerging economies and ecosystems rely heavily on fossil fuels, and a country’s energy dependence is a strong indicator of its reliance on foreign suppliers. This study investigates the impact of energy dependence on energy intensity, CO2 emission intensity, and the exploitation of renewable resources in 35 developing and 20 developed nations. It also explores the correlation between renewable energy, GDP growth, and CO2 emissions. This study utilizes the Generalized Linear Model (GLM) and the Robust Least Squares (RLS) method to investigate the negative correlation between renewable energy and policymakers in established and emerging economies. It also employs distinctive linear panel estimation techniques spanning from 1970 to 2022. This study examines the impact of renewable energy on economic growth, energy consumption, and CO2 emissions across four continents. Developing countries see an increase in per capita CO2 emissions when their utilization of renewable energy exceeds their capacity. Even with the introduction of several proxies for renewable energy use using changed techniques, this discovery remains valid. Moreover, this is particularly crucial for industrialized nations with well-established institutions. Energy dependency has increased the energy and carbon intensity needed for expansion across all components, which is surprising. The regional study discovered a spillover impact in most regions, indicating that the consequences of energy reliance are similar in neighboring countries. Regional energy exchange unions play a vital role in reducing the adverse environmental and economic impacts of energy dependence, which is essential for the growth of the renewable energy sector and the decrease in greenhouse gas emissions. Undeveloped countries need to enhance their investment in research and development to advance technologically.

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Section: Introductionmentioning

confidence: 99%

Renewable Adoption, Energy Reliance, and CO2 Emissions: A Comparison of Developed and Developing Economies

Bi,

Guo,

Khan

2024

Energies

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“…One category of literature focuses on technical means, such as improving the treatment process of sewage treatment plants, which is a crucial way to improve the efficiency of sewage treatment from scientific and technological perspectives [ 7 ]. Li et al [ 8 ] examined the recent development and prospects of drainage services departments by evaluating how different forms of renewable energy can be harnessed. Su et al [ 9 ] studied the application of solar energy in sewage treatment plants.…”

Section: Introductionmentioning

confidence: 99%

Can Public–Private Partnership Wastewater Treatment Projects Help Reduce Urban Sewage Disposal? Empirical Evidence from 267 Cities in China

Hou

2022

IJERPH

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Human activities have placed enormous pressure on the world’s water resources. To improve the efficiency of water supply and wastewater treatment, public–private partnerships (PPPs) are widely used for sewage treatment. However, an academic question remains about whether PPP sewage treatment projects (PPPSTs) help reduce urban sewage disposal when responsibilities shift from the public sector to the private sector. This study used panel data of 267 prefecture-level cities in China from 2009 to 2020 to construct a difference-in-difference (DID) model based on the counterfactual framework to answer this question empirically. The model results significantly support the effect of PPPSTs on sewage disposal reduction. Furthermore, these results passed the parallel trend test and the placebo test, and the results were still achieved when the quadratic term of the core variable was introduced, indicating that the model is reliable. In addition, the moderating effect models were used to expand the analysis. That is, the regressions were derived by multiplying the relevant extended variables and the core independent variables. This analysis indicates that the operation mode of PPPST and the characteristics of national demonstration play an essential role in reducing the amount of urban sewage disposal. However, the effect of fiscal decentralization is not apparent. These conclusions were also confirmed in the model using the investment scale of PPPSTs. Therefore, paying attention to the formation of PPPST contracts and adopting a practical supervision system is of great significance for improving the effect of sewage disposal reduction.

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