Graphically based analysis of water system with zero liquid discharge

Deng, Chun; Feng, Xiao; Bai, Jie

doi:10.1016/j.cherd.2007.11.003

Cited by 41 publications

(37 citation statements)

References 13 publications

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“…Gomes et al 7 presented optimal solutions for reuse, multiple water sources, regeneration reuse and regeneration recycling for the WUNs of single contaminant. Deng et al 8 investigated the optimal regeneration concentration and regenerated water flowrate for single contaminant water system. Ng et al 9,10 also investigated the target of the WUNs of single contaminant with regeneration.…”

Section: Introductionmentioning

confidence: 99%

An iterative method for design of water‐using networks with regeneration recycling

Chunhui

Shi

2011

AIChE Journal

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in Wiley Online Library (wileyonlinelibrary.com).Both freshwater consumption and wastewater discharge can be reduced significantly when wastewater regeneration recycling is introduced in the design of the water-using networks (WUNs). However, it is often difficult to design the WUNs involving regeneration recycling. This article presents an iterative method to design the WUNs involving regeneration recycling. The final designs can be obtained without iteration for the networks with known regenerated concentrations, and in a few iterations for the networks with known removal ratios of the contaminants. The method proposed can reduce the following parameters simultaneously, the consumptions of freshwater and the regenerated water, and the concentrations of the stream before regeneration, and all of them reflect the cost of the network involving regeneration recycling. The results of a few literature examples show that the designs obtained in this work are comparable to that obtained in the literature. The proposed method is simple and effective.

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Section: Introductionmentioning

confidence: 99%

An iterative method for design of water‐using networks with regeneration recycling

Chunhui

Shi

2011

AIChE Journal

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“…For such cases, the freshwater should supplement the amount of water loss. Deng et al (2008) first utilised the LCC to identify the key parameters for a water regeneration network to achieve ZLD. Note however that the turning points of LCC may not be vividly recognisable for highly integrated water network.…”

Section: Introductionmentioning

confidence: 99%

An automated composite table algorithm considering zero liquid discharge possibility in water regeneration–recycle network

Parand

Yao

Foo

et al. 2016

Clean Techn Environ Policy

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In this study, a novel Automated Composite Table Algorithm (ACTA) is developed for targeting the water regeneration-recycle network of single contaminant problem. The ACTA is based on Pinch Analysis, but is automated by taking into consideration the possibility of zero liquid discharge (ZLD) for the water network. In the existing literature, the targeting procedure for ZLD network is based on the graphical tool of Limiting Composite Curve (LCC). However, identification of key parameters (i.e. freshwater, wastewater, regenerated water flowrates, along with pre-regeneration concentrations) is very tedious for highly integrated water network system. The magnification around the turning point of LCC is required to identify the correct pinch points and targeting procedure is done iteratively until the reliable network targets can be determined. These limitations are now overcome by the ACTA, which is an improved version of Composite Table Algorithm that is capable of identifying key parameters algebraically for a given post-regeneration concentration. The newly developed ACTA is capable of handling a wide range of problems including ZLD and non-ZLD network, for both fixed load and fixed flowrate problems.

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“…This paper will also test the feasibility of the method using data obtained from the Nigerian Kaduna petrochemical refinery. The feasibilities of reuse and recycling of water and wastewater minimization in the water network of the refinery will be analysed by considering suspended solid (SS), hardness (H), chemical oxygen demand (COD) and Free Hydrocarbons (FH) wastewater contaminants [10,11].…”

Section: Introductionmentioning

confidence: 99%

Optimization of Water Reuse Network Using Water Pinch Technology (WPT) by Considering Single Contaminant for Kaduna Refinery and Petrochemical Company, Nigeria

Sa¹

2016

J Pollut Eff Cont

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Conventionally, freshwater has been the only source of water for processes used in the industries due to the fact that it is cheap, and the wastewater generated in these processes has been treated in a central common facility in order to remove contaminants and to meet regulatory specifications for wastewater disposal. This research identify an optimum design of water reuse network for Kaduna refinery and petrochemical company (KRPC), while considering suspended solid (SS), hardness (H, Chemical oxygen demand (COD) and Free hydrocarbons (FH) wastewater contaminants and analysing the feasibilities of reuse and recycling for water and wastewater minimization in the water network of the company by using graphical method known as Water Pinch Technology (WPT). The analysis indicated the possibility of reducing the fresh water use by 76.8 m

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Graphically based analysis of water system with zero liquid discharge

Cited by 41 publications

References 13 publications

An iterative method for design of water‐using networks with regeneration recycling

An iterative method for design of water‐using networks with regeneration recycling

An automated composite table algorithm considering zero liquid discharge possibility in water regeneration–recycle network

Optimization of Water Reuse Network Using Water Pinch Technology (WPT) by Considering Single Contaminant for Kaduna Refinery and Petrochemical Company, Nigeria

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