[Analysis on relationship between regional economic development and sewage disposal]
La-Chun Wang1, Yu Huo, Ji-Ye Zhu
1School of Geographic and Oceanographic Sciences, Nanjing University, Nanjing 210093, China. wang6312@263.net.cn
Huan Jing Ke Xue= Huanjing Kexue
|July 25, 2008
Summary
Economic development impacts sewage disposal differently across cities. Advanced economies like Suzhou require pollutant and concentration controls, while developing cities like Nanjing and Xuzhou need industrial restructuring and emission control strategies for water protection.
Area of Science:
- Environmental Science
- Environmental Engineering
- Regional Economics
Context:
- Analyzes the dynamic relationship between district Gross Domestic Product (GDP) and sewage disposal across three Jiangsu Province cities with varying economic development levels: Suzhou, Nanjing, and Xuzhou.
- Highlights economic disparities: Suzhou (highly developed, high foreign capital), Nanjing (moderately developed, high state-owned enterprises), and Xuzhou (under-developed, coal-based heavy industry).
- Examines GDP per capita in 2005 (Suzhou: 53,800 yuan, Nanjing: 37,100 yuan, Xuzhou: 13,200 yuan) and its correlation with sewage disposal trends.
Purpose:
- To dynamically analyze the water environment protection effects in relation to economic development and sewage disposal in diverse urban settings.
- To identify distinct patterns of sewage disposal corresponding to different stages of economic growth and industrial structures.
- To provide tailored recommendations for water environment protection strategies based on city-specific economic and environmental conditions.
Summary:
- Suzhou, a well-developed city, showed a linear increase in sewage disposal with GDP growth, necessitating control over both total pollutant emissions and concentration.
- Nanjing, with a significant state-owned enterprise presence, exhibited a linear decrease in sewage disposal as GDP rose, indicating a need for industrial structure adjustment and total emission control.
- Xuzhou, an under-developed industrial city, displayed fluctuating sewage disposal with GDP increases, suggesting that controlling pollutant emission concentration should be the primary focus.
Impact:
- Provides city-specific, evidence-based strategies for effective water environment protection, aligning economic development with ecological sustainability.
- Offers a comparative analysis framework for understanding the complex interplay between economic growth, industrial composition, and wastewater management in different regional contexts.
- Informs policy-making for targeted environmental interventions, promoting efficient resource allocation and improved water quality management in urban areas.
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