Responsible supply chain management – an analysis of Taiwanese gutter oil scandal using the theory of constraint

Wee, Hui–Ming; Budiman, Syarif Daniel; Su, Li-xia; Chang, Ming Shi; Chen, R.

doi:10.1080/13675567.2015.1090964

Cited by 21 publications

(16 citation statements)

References 9 publications

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“…In this regard, WCO seemed to be reused as animal feed additives [35]. However, the compositions of WCO may be different from those of vegetable oils due to thermal and other reactions (e.g., hydrolysis, oxidation, and polymerization) at high temperatures during the frying [2]. Although WCO was pretreated by filtration medium initially, the presence of some harmful components (e.g., dioxins and polycyclic aromatic hydrocarbons) led to the promulgation of some strict laws against the utilization of WCO in animal feed.…”

Section: Non-fuel Related Usesmentioning

confidence: 99%

“…The so-called waste cooking oil (WCO) contains many harmful substances, thus causing health hazards when people consume it or its processing products. Unfortunately, an incident of "food safety scandal" happened in Taiwan in September 2014 [2]. In this food scandal, some lard/lard products manufactured by a Taiwanese company might have been contaminated, as they were produced from collected waste oils and/or lard for animal feed.…”

Section: Introductionmentioning

confidence: 99%

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Mandatory Recycling of Waste Cooking Oil from Residential and Commercial Sectors in Taiwan

Tsai

2019

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Waste cooking oil (WCO) has been considered a low-cost and renewable feedstock for the production of biodiesel and biobased products if it can be economically and efficiently collected and recycled. The objective of this case study is to review the scientific background of WCO recycling in the literature in connection with the regulatory and promotional measures in Taiwan under the authorization of a legal waste management system. Furthermore, the updated information about the on-line reporting WCO amounts in Taiwan is also analyzed to illustrate its significant increase in the recycling status of WCO officially designated as one of the mandatory recyclable wastes since 2015. Finally, an overview of available utilization of WCO as biodiesel, fuel oil, and non-fuel related uses is briefly addressed in this paper. It shows that the collected amounts of WCO from residential and commercial sectors in Taiwan significantly increased from 1599 tonnes in 2015 to 12,591 tonnes, reflecting on the WCO recycling regulation effective since 2015. Practically, the most important option for this urban mining is to reuse WCO as an energy source for the productions of biodiesel and auxiliary fuel. Other non-fuel related uses include the production of soaps/detergents, C-18 fatty acids, and lubricants. However, the reuse of WCO as a feed additive should be banned to prevent it from re-entering the food chain.

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Section: Non-fuel Related Usesmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Mandatory Recycling of Waste Cooking Oil from Residential and Commercial Sectors in Taiwan

Tsai

2019

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“…As mentioned, one of this theory tools is applied in order to specify the particular bottleneck. To determine the bottleneck according to the TOC principles, the current state of logistics processes must be overviewed [7].…”

Section: B Specification Of Constrains In a Given Enterprisementioning

confidence: 99%

Specification of Negative Effects Applying the Theory of Constraints Tool: a Case Study

Ľupták¹,

Stopka²,

Stopková³

2019

Proceedings of the International Conference on Economics, Management and Technology in Enterprises 2019 (EMT 2019)

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In regard to the functional system or process, there is always at least one constraint; and some advanced techniques, that use a focusing process to identify this constraint and restructure the rest of the organization around it, may be implemented. The paper deals with the application of the specific Theory of Constraints tool in given logistics operation within particular manufacturing and distribution enterprise. The objective of this utilization is to define the most significant cause in terms of determined negative consequences. The relevant effect on cost value, effectivity and profitability as well as quality is the crucial reason to detect a particular cause resulting in negative consequences. The selected enterprise specifies seven main consequences and due to the construction of the special diagram of causes and consequences (as a part of the Theory of Constraints tools), it was possible to determine the most important cause.

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“…These residual bulk oil will be back to the food chain but the safety for food that fried with this oil could not be secured. In 2014, Taiwan got a headline for food safety scandal involving the usage of residual bulk oil [2]. WCO will become threats if it is not treated well.…”

Section: Introductionmentioning

confidence: 99%

Identifying Waste Cooking Oil Chains to Become an Energy Resource: Study Case in Yogyakarta

Astuti¹,

Linarti²,

Yulistiyanto³

2019

Proceedings of the 2019 1st International Conference on Engineering and Management in Industrial System (ICOEMIS 2019)

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Waste Cooking Oil (WCO) is classified as municipal waste that potentially could pollute the environment. The form of the chains for waste cooking oil management has never been identified so the benefits are still unknown to the community. Up till now, waste cooking oil is always dumped into drains or sold to third-party collectors for converting it to be residual bulk oil. The risk of dumping waste cooking oil into drains can make the water source pollution. If it is reprocessed for human consumption, it can cause diseases. The added value of waste cooking oil is when converted to energy resource. In Yogyakarta, the chains for waste cooking oil management involved waste banks and Bumdes X that came from Bantul regency. Benefit Cost Ratio (BCR) method was used to determine the added value of the waste cooking oil chains so that it can be used as an energy resource. The BCR for existed WCO chains was less than one because the research didn't consideration illegal chains.

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Responsible supply chain management – an analysis of Taiwanese gutter oil scandal using the theory of constraint

Cited by 21 publications

References 9 publications

Mandatory Recycling of Waste Cooking Oil from Residential and Commercial Sectors in Taiwan

Mandatory Recycling of Waste Cooking Oil from Residential and Commercial Sectors in Taiwan

Specification of Negative Effects Applying the Theory of Constraints Tool: a Case Study

Identifying Waste Cooking Oil Chains to Become an Energy Resource: Study Case in Yogyakarta

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