scholarly journals Analysis of Sponge City

2019 ◽  
Vol 4 (2) ◽  
pp. p124
Author(s):  
Huiqing Hu
Keyword(s):  
Water Resources ◽  
Storage Capacity ◽  
Development Trend ◽  
Urban Water ◽  
Sponge City ◽  
Healthy Development ◽  
Water Logging ◽  
City Construction

The purpose of Sponge City construction is to reduce urban water logging, reduce losses, increase the storage capacity of rainwater and flood resources, alleviate the shortage of water resources, and promote the healthy development of cities. This paper mainly studies the definition, construction idea, purpose, concrete measures and development trend of sponge city, and expounds the related problems of Sponge City in a systematic and comprehensive way.

scholarly journals The Storage and Water Quality Characteristics of Rungiri Quarry Reservoir in Kiambu, Kenya, as a Potential Source of Urban Water

Hydrology ◽  
2019 ◽  
Vol 6 (4) ◽  
pp. 93 ◽  
Author(s):  
Winfred Kilonzo ◽  
Patrick Home ◽  
Joseph Sang ◽  
Beatrice Kakoi
Keyword(s):  
Water Quality ◽  
Drinking Water ◽  
Surface Water ◽  
Water Resources ◽  
Water Supply ◽  
Storage Capacity ◽  
World Health ◽  
Urban Water ◽  
Water Quality Status ◽  
Quality Status

Urbanization has caused limitations on water resources, while climate change has reduced amounts of surface water in some parts of the world. Kikuyu, a suburban area in Kiambu county, Kenya, is facing this challenge. The major challenge in the study is scarcity of potable water, resulting in inadequate water supply to Kikuyu residents. Currently, only 63.6% of the population is being supplied with water by Kikuyu Water Company, the company mandated to supply water to the area. Water demand was 2972 m3/day in 2015 and was projected to be 3834 m3/day by 2025. This has put pressure on the already exploited clean water resources, making it necessary to seek additional sources of domestic water. Storage capacity and water quality of surface water bodies, especially small reservoirs whose water can be used to ease the demand, need to be assessed for supplemental water supply. This study aimed at assessing the suitability of the abandoned quarry reservoir as a source of potable urban water by determining its storage capacity characteristics and water quality status. Volume characteristics were determined using bathymetry survey in January 2019. Water samples were collected in January and August 2019 and analyzed for chemical, physical, and bacteriological quality, as per the American Public Health Association (APHA) standard methods for water and wastewater. Parameters were evaluated based on World Health Organization (WHO) and Kenya Bureau of Standards (KEBS) guidelines for drinking water, and rated based on the drinking water quality index (WQI). The reservoir’s maximum storage capacity was found to be 128,385 m3, the surface area was 17,699 m2, and the maximum depth was 15.11 m. Nineteen of the twenty-five investigated parameters were within the acceptable standards. However, the concentrations of manganese (Mn), cadmium (Cd), iron (Fe), turbidity, total coliforms, and Escherichia coli (E. coli) were above the acceptable limits. Manganese and iron levels increased with depth. The overall WQI of the reservoir was 82.51 and 85.85 in January and August, respectively. Therefore, based on WQI rating, the water scored a good quality rating and could be used for domestic supply upon treatment. The original achievement of this study is establishment of the volume of the water in the quarry as an additional source of water to the nearby community, along with water quality status.

scholarly journals Sponge city construction in China: policy and implementation experiences

Water Policy ◽  
2018 ◽  
Vol 21 (1) ◽  
pp. 19-37 ◽  
Author(s):  
Chenyao Xiang ◽  
Jiahong Liu ◽  
Weiwei Shao ◽  
Chao Mei ◽  
Jinjun Zhou
Keyword(s):  
Local Governments ◽  
Flood Control ◽  
Large Scale ◽  
Central Government ◽  
Low Impact Development ◽  
Economic Conditions ◽  
Chinese Government ◽  
Urban Water ◽  
Sponge City ◽  
City Construction

Abstract To deal with the three universal urban water problems – namely storm floods, water pollution and water shortage – China has implemented a comprehensive solution: the Sponge City Construction Project. Sponge cities aim to reduce runoff and pollution, and also to restore downstream ecologies. They combine low impact development methods with grey infrastructures, large-scale flood control projects and rehabilitation. This paper describes Chinese experiences of construction and financing for implementation of sponge cities, which could provide references to other countries for building sustainable, climate-resilient cities and urban water management systems. It illustrates the objectives and methods of the sponge city design and demonstrates the differences in configuration and funding structures in cities of different climates and economic conditions. The total construction area involved in the pilot cities covers 449 km2. The configurations are distinct due to different economic conditions, climates and land forms: a humid district inclines to drainage-efficient approaches and pollution control devices, while a semi-humid district prefers green infrastructures and rainwater reuse facilities. The Chinese government plays an important role in the funding of sponge cities: Chinese central government provided CNY (¥)20.7 billion for the construction of 16 cities during 2015–2017, while the rest came from local governments and non-governmental investors.

Upgrading to urban water system 3.0 through sponge city construction

2017 ◽  
Vol 11 (4) ◽  
Author(s):  
Nanqi Ren ◽  
Qian Wang ◽  
Qiuru Wang ◽  
Hong Huang ◽  
Xiuheng Wang
Keyword(s):  
Water System ◽  
Urban Water ◽  
Sponge City ◽  
Urban Water System ◽  
City Construction

Reflections on the Construction of Water Supply and Drainage in Integrated Pipe Corridor of Sponge City

2018 ◽  
Vol 2 (4) ◽  
Author(s):  
Pingju Li
Keyword(s):  
Water Supply ◽  
Urban Development ◽  
Continuous Improvement ◽  
Living Environment ◽  
Urban Water ◽  
Urban Water Supply ◽  
Continuous Development ◽  
Sponge City ◽  
City Construction ◽  
Planning And Construction

With the continuous development of economy and society and the continuous improvement of peoples’ living environment requirements, the concept of sponge city construction has been recognized and understood by more and more people. The country has also recognized the significance of planning and construction of sponge cities. In the process of planning and constructing a sponge city, it is necessary to combine the reality of urban development with the construction of urban water supply and drainage systems and underground pipe corridors to promote the process of urban modernization. Based on this, this paper analyzes the water supply and drainage construction of the integrated pipe corridor in the sponge city.

scholarly journals Regenerating Sponge City to Sponge Watershed through an Innovative Framework for Urban Water Resilience

2021 ◽  
Vol 13 (10) ◽  
pp. 5358
Author(s):  
Jian Wang ◽  
Fei Xue ◽  
Ruiying Jing ◽  
Qiaohui Lu ◽  
Yilong Huang ◽  
...  
Keyword(s):  
Management Practices ◽  
Urban Water ◽  
Watershed Scale ◽  
Sponge City ◽  
Health And Wellbeing ◽  
Ecological Conservation ◽  
Stormwater Management Practices ◽  
City Construction ◽  
Water Issues ◽  
Watershed Health

In recent years, cities universal are advocating ‘resilience’ in terms of water-related challenges. Accompanied by the development of sponge city construction, several emerging stormwater management practices are prevailing worldwide. This paper proposes a regenerative argument for sponge city construction from the urban scale towards the watershed scale by strengthening the urban water resilience and sustainability. An innovative framework is established to address urban water issues and human livability via 20 conventional and advanced indicators and the interrelations between the modules of water resilience, water resource, water treatment, water ecology, waterscape, and water management. Six representative cities from the sponge city construction pilot in South China have been selected, and the compatibility and divergence between their guidelines and the sponge watershed framework are revealed through pair analyses and parameter calculation. The diverse perspectives behind the scores have been discussed carefully, and the successful experiences of excellent cities are systematically summarized and promoted. The analyses and findings in this research have significant methodological implications for shifting the sponge city practice towards linking urban development with watershed ecological conservation. The proposed framework and strategies provide a reference for an integrated solution of watershed health and wellbeing in the next generation sponge city practice.

scholarly journals Rainwater Utilization and Construction of Sponge city

2020 ◽  
Vol 206 ◽  
pp. 03012
Author(s):  
Yiwen Yang
Keyword(s):  
Case Analysis ◽  
Development Trend ◽  
Current Situation ◽  
Close Attention ◽  
Sponge City ◽  
Comprehensive Utilization ◽  
City Construction ◽  
At Home

Rainwater utilization is a technical means of comprehensive utilization of rainwater. These include environmentally and economically friendly methods of irrigating farmland and storing water for flushing. The construction of “sponge city” is also the key point that the society pays close attention to nowadays. Rainwater utilization and “sponge city” are to solve the problem of urban waterlogging from the concept to the purpose of construction. Based on certain data, this paper analyzes and expounds the current situation of rainwater utilization at home and abroad, the progress of “sponge city” construction and the desirable experience of advanced countries, summarizes its development trend through case analysis, and puts forward the prospect of future rainwater utilization and “sponge city” construction and development.

scholarly journals Creating Urban Water Resilience: Review of China’s Development Strategies “Sponge City” Concept and Practices

2017 ◽  
Vol 2 (1) ◽  
pp. 1
Author(s):  
Roosmayri Lovina Hermaputi ◽  
Chen Hua
Keyword(s):  
Low Impact Development ◽  
Theory Development ◽  
Water System ◽  
Water Shortage ◽  
Urban Water ◽  
Construction Technology ◽  
Storm Events ◽  
Sponge City ◽  
City Construction ◽  
China’S Cities

These years China's cities faced urban water security problem caused by natural disaster, man-made disaster, and water shortage. Back to the year 2002 until 2015 several cases were raised such as 2002 Guizhou Duyun slag water pollution, 2014 Lanzhou water benzene poisoning cases and the Han River Excessive Ammonia Pollution in Wuhan, Gansu Hui County blood cadmium poisoning cases. Meanwhile, a rainstorm hit Guangzhou in May 2010, Nanjing rainstorm 7.18, and recently Beijing 7.21 big rainstorm who killed about 79 people and Changsha 4.7 big flood in 2015. The "Sponge City" is the answer for China's water issues. Recorded In October 2013 Professor Lin Bingzhang recommend to build a "sponge city" as storm events and flood mitigation action, then in December, Secretary-General Xi Jinping at the central work conference on urbanisation talked about building a natural reservoir, natural infiltration, natural purification "sponge city." Followed the initiative, "Sponge City Construction Technology Guide - Low Impact Development Storm water system builders" had been released in 2014, project financing policy "Finance Building [2014] No. 838" has been established and until the year 2016, 30 cities has been chosen as sponge city urban construction pilot. The sponge city initiative aims to maximise water reservation and minimise the effects of drought and flooding by recycling and efficiently applying water supplies and reserves (AUSTRADE, 2016). This paper tries to elaborate the Sponge City theory and review of several practices in China's cities to create urban water resilience. This research will conduct theory development analysis, sponge city construction's practices analysis and its performance to actualize urban water resilience.

scholarly journals Historical evolution of urban water conservancy projects in Xi'an, China in the past 3,000 years and its revelations

2021 ◽  
Author(s):  
Wei Zhou ◽  
Junrui Chai ◽  
Zengguang Xu ◽  
Yixuan Wang ◽  
Kewu Wei ◽  
...  
Keyword(s):  
Water Resources ◽  
Water Supply ◽  
Tang Dynasty ◽  
Water Source ◽  
Development Trend ◽  
Drainage Water ◽  
Water Diversion ◽  
Urban Water ◽  
Western Han Dynasty ◽  
Water Conservancy

Abstract Xi'an has a special historical position in ancient China, and it has made great achievements in water conservancy projects in all dynasties. The water network skeleton formed mainly by the ‘Eight Waters’ in the territory, along with the historical changes of Xi'an, has experienced the Lantian ape-man ‘living by the water’, the Western Zhou Fenghao ‘built the capital by the water’, and the Qin Xianyang city ‘the Weihe river run through the capital’ Developments and changes such as the ‘diversion of water to develop the capital’ in Chang'an in the Western Han Dynasty, the ‘Eight Waters Ring Capital’ in Chang'an in the Sui and Tang Dynasties, and ‘all go to the water micro’ from the end of the Tang Dynasty to the Qing Dynasty, and the ‘coordinated supply’ after the founding of the People's Republic of China. After sorting out the system, it is believed that the ‘Eight Waters’ in the territory is the original driving force for the flourishing Chang'an in history. From ancient times to the present, with the development of industry, there has been a trend that human settlements and rivers are farther away. Urban water supply has shifted from groundwater sources to surface water sources. This article investigates the evolution of water conservancy project in Xi'an from the Paleolithic Age to the present, and studies the relationship between human production and life and water resources. The changing law and development trend of the water supply structure in Xi'an urban area in modern times are analyzed. We have summarized the enlightenment left to us by the practice of water conservancy projects for thousands of years. This paper provides references for the development and planning of water resources in similar cities. HIGHLIGHT Water source engineering; water supply; water diversion; drainage; water transfer.

scholarly journals Application of geotechnical synthetic materials in Sponge city construction

2019 ◽  
Vol 3 (1) ◽  
Author(s):  
Jibin Lu
Keyword(s):  
Environmental Protection ◽  
Market Economy ◽  
Control Mechanism ◽  
Development Trend ◽  
Market Development ◽  
Basic Principles ◽  
Sponge City ◽  
Synthetic Materials ◽  
City Construction ◽  
Basic Level

Abstract: Along with the overall progress and development of market economy, Sponge City has received extensive attention, in order to establish a more compatible with the market development trend and environmental protection requirements of the control mechanism, it is necessary to scientifically plan synthetic materials, to a certain extent, to maintain the basic level of sponge city supervision work. In this paper, the research background of Geosynthetics applied in Sponge City construction is briefly analyzed, and the basic principles and specific application paths are discussed, which are for reference only. 

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