scholarly journals Water Footprint and Water Pinch Analysis in Ethanol Industrial Production for Water Management

Water ◽  
2019 ◽  
Vol 11 (3) ◽  
pp. 518 ◽  
Author(s):  
Heng Liu ◽  
Lijun Ren ◽  
Huimin Zhuo ◽  
Sanze Fu
Keyword(s):  
Water Management ◽  
Environmental Pollution ◽  
Water Reuse ◽  
Water Footprint ◽  
Fuel Ethanol ◽  
Pinch Analysis ◽  
Energy Demands ◽  
Analysis Technique ◽  
Ethanol Plant ◽  
Water Pinch

Fuel ethanol is considered to be a clean alternative fuel to meet increasing energy demands and mitigate environmental pollution. Faced with challenges in terms of energy security and environmental pollution, China is vigorously developing fuel ethanol. However, ethanol-manufacturing is a water-intensive industry; it consumes large volumes of fresh water and generates a corresponding amount of waste water. Expansion of this industry can reduce water quality and cause water stress. This study aims to combine the water footprint (WF) with a water pinch analysis technique to manage water consumption and sewage discharge systematically in an ethanol plant. A well-operated cassava ethanol plant in China was chosen as a case study. The WF of industrial ethanol production was evaluated. The total WF was 17.08 L/L ethanol, comprised of a 7.69 L blue water footprint (BWF), and a 9.39 L gray water footprint (GWF). The direct WF was 16.38 L/L ethanol, and the indirect WF was 0.70 L/L ethanol. Thereafter, a water pinch analysis was conducted, and the optimal direct water reuse scheme was studied. After the water network was optimized, the BWF was reduced by 0.98 L/L ethanol, while the GWF was reduced by 1.47 L/L ethanol. These results indicate that the combined use of WF and pinch analysis can provide the starch-based ethanol industry with an effective tool to improve its water management.

scholarly journals Water footprint and water pinch analysis techniques for sustainable water management in the brick-manufacturing industry

2018 ◽  
Vol 172 ◽  
pp. 786-794 ◽  
Author(s):  
George Skouteris ◽  
Sabèha Ouki ◽  
Dominic Foo ◽  
Devendra Saroj ◽  
Maria Altini ◽  
...  
Keyword(s):  
Water Management ◽  
Manufacturing Industry ◽  
Water Footprint ◽  
Pinch Analysis ◽  
Sustainable Water Management ◽  
Analysis Techniques ◽  
Water Pinch

The application of pinch analysis to water, reagent and effluent management in a chlor-alkali facility

2002 ◽  
Vol 46 (9) ◽  
pp. 21-28 ◽  
Author(s):  
P. Gianadda ◽  
C.J. Brouckaert ◽  
R. Sayer ◽  
C.A. Buckley
Keyword(s):  
South African ◽  
Water Reuse ◽  
Large Scale ◽  
Present Theory ◽  
Pinch Analysis ◽  
Industrial Systems ◽  
Chemical Complex ◽  
Water Pinch ◽  
Freshwater Consumption

South African industry is coming under increasing pressure to reduce the amount of freshwater it uses and the amount of effluent it produces. Water pinch is a cleaner production technique aimed at reducing the freshwater consumption and effluent production within a chemical complex. The design of water-reuse or water pinch networks as applied to the case study of a chlor-alkali complex is considered. Insights are provided into the analysis and formulation of problems for large-scale industrial systems and the application of present techniques and tools to the formulated problem is illustrated. The features of the problem posed by the chlor-alkali facility are discussed and the limitations of the present theory in dealing with this problem highlighted. The concepts of utility-water pinch analysis and process-water pinch analysis are introduced.

Identification of Unique Aldehyde Dimers in Sorghum Wax Recovered after Fermentation in a Commercial Fuel Ethanol Plant

2020 ◽  
Vol 97 (12) ◽  
pp. 1299-1308
Author(s):  
Robert A. Moreau ◽  
Megan E. Sharma ◽  
Alberto Nuñez ◽  
Charles A. Mullen ◽  
Michael J. Powell ◽  
...  
Keyword(s):  
Fuel Ethanol ◽  
Sorghum Wax ◽  
Ethanol Plant ◽  
Commercial Fuel

scholarly journals Analysis of Stormwater Management Systems: Sustainable Approaches for Wuhan, China

2016 ◽  
Vol 9 (1) ◽  
pp. 89 ◽  
Author(s):  
Rong Sheng ◽  
Nawari O. Nawari
Keyword(s):  
Water Management ◽  
Water Reuse ◽  
System Analysis ◽  
Central City ◽  
Geographical Information ◽  
Storm Water ◽  
Wetland Protection ◽  
Land Form ◽  
Storm Water Management ◽  
Inland Inundation

<p>With the rapid pace of urbanization and drastic transformation of economic form, Wuhan, a central city of China is facing serious inland inundation problems in recent decades. This study intends to alleviate Wuhan’s storm water management problems in a sustainable way and give suggestions as to the improvement of residential area storm water management and lakeside wetland protection. Based on the data provided by Geographical Information System, analysis is done to the land form of the whole city and the change of its lake areas, which evidently demonstrates the influences of economic development on the natural environment of the city and reveals the causes of the inundation problems. Taking the population growth, land use and climate change into consideration, this research argues that strategies such as green roof fostering, neighbor-hood water reuse and wetland conservation can make a difference in stormwater drainage and prevention of inland inundation in Wuhan.</p>

Study on the Cooling Water Systems with Multiple Cooling Water Supplies

2012 ◽  
Vol 610-613 ◽  
pp. 2497-2500
Author(s):  
Yong Guo ◽  
Zhi Yong Liu
Keyword(s):  
Water Reuse ◽  
System Analysis ◽  
Cooling Water ◽  
System Optimization ◽  
Water Systems ◽  
Heat Transfer Process ◽  
Water Supplies ◽  
Pinch Point ◽  
Analysis And Design ◽  
Water Pinch

Water pinch technology is a process integration technology used for enterprises water system optimization, in order to improve the water reuse rate. Application of water pinch point technology to the whole system analysis and design, to establish a feasible performance index, and then determine the detailed process of design and transformation to achieve the predetermined target performance. This paper presents a technique for simultaneous targeting and design in cooling water systems comprising of at least two cooling towers and several cooling water using operations. Through comprehensive analysis on the cooling water systems with multiple cooling water supplies, determine the corresponding heat transfer process to the cooling tower, obtained better results than literature.

scholarly journals Water Footprint Management for Sustainable Growth in the Bangladesh Apparel Sector

Water ◽  
2020 ◽  
Vol 12 (10) ◽  
pp. 2760
Author(s):  
Laila Hossain ◽  
Mohidus Samad Khan
Keyword(s):  
Water Pollution ◽  
Textile Industry ◽  
Water Reuse ◽  
Water Footprint ◽  
Sustainable Growth ◽  
Raw Material ◽  
Groundwater Depletion ◽  
Cotton Production ◽  
Volume Number ◽  
Textile Industries

Bangladesh is one of the fastest growing economies in the world, primarily driven by its textile industries. A high amount of water is consumed and polluted in the production and processing of raw material to the final product in the textile industry. Therefore, water footprint assessment is important for textile products. In this study, the water footprint of cotton cultivation, transportation and textile industry was calculated by analyzing the amount of imported cotton, production and processing capacity of cotton yarn and cotton fabrics, wastewater volume, number of workers and pollution load database, for 2012–2016. For the textile industry, the annual water footprint was found to be 1.8 billion m3. This high amount of water footprint and water pollution may result in depletion of groundwater level and can lead to major health problems for the local people, respectively. Total water footprint for ready-made garment product is found to be 27.56 billion m3, whereas considering proper water treatment and water reuse facilities can reduce the grey water footprint to around 1.26 billion m3. This study shows the extent of water pollution, groundwater depletion and economic impact of groundwater extraction, and possible means to reduce water footprint in cotton cultivation and textile industries.

The role of membrane technology in sustainable decentralized wastewater systems

2005 ◽  
Vol 51 (10) ◽  
pp. 317-325 ◽  
Author(s):  
A.G. Fane ◽  
S.A. Fane
Keyword(s):  
Water Management ◽  
Wastewater Treatment ◽  
Water Reuse ◽  
Wastewater Reuse ◽  
Membrane Technology ◽  
Urban Water ◽  
Urban Water Management ◽  
Decentralized Wastewater Treatment ◽  
Sustainable Urban Water Management

Decentralized wastewater treatment has the potential to provide sanitation that meets criteria for sustainable urban water management in a manner that is less resource intensive and more cost effective than centralized approaches. It can facilitate water reuse and nutrient recovery and can potentially reduce the ecological risks of wastewater system failure and the community health risk in a wastewater reuse scheme. This paper examines the potential role of membrane technology in sustainable decentralized sanitation. It is argued that the combination of membrane technology within decentralized systems can satisfy many of the criteria for sustainable urban water management. In particular, the role of membranes as a dependable barrier in the wastewater treatment process can increase system reliability as well as lowering the latent risks due to wastewater reuse. The modular nature of membranes will allow plant size to range from single dwellings, through clusters to suburb size. It is concluded that realization of the potential for membrane-based technologies in decentralized wastewater treatment will require some progress both technically and institutionally. The areas where advances are necessary are outlined.

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