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Volume 8
International Journal of Waste Resources
ISSN: 2252-5211
Recycling Expo 2018
June 25-26, 2018
June 25-26, 2018 | Berlin, Germany
8
th
World Congress and Expo on Recycling
The influence of material flow on ecological cost in the waste paper recycling and manufacturing
process
Tiejun Dai
Beijing University of Technology, China
I
n the background of fact that the problems of the resources and environment are serious day by day, waste paper, as an
important secondary resource, has gradually become the most important raw material for paper making. Now the studies
on environmental impact of waste paper recycling, which always use life cycle assessment, were mainly about comparison
of different recycling strategy. Their results are non-monetary volume, which have difficulties on guiding enterprises to
achieve win-win between economic and environmental. Therefore, in this paper, ecological cost is put forward and defined;
its calculation model based on material flow was set up. Based on the material flow analysis, a standard ecological cost flow
diagram (SECFD) was set up in waste paper recycling system, and the influence of deviating from SECFD on the ecological
cost is analyzed. The rule of the influence of material and energy flow in the waste paper recycling system to the ecological cost
is revealed. Taking the minimum ecological cost of waste paper recycling system as the objective function, the optimal design
is based on the constraint condition of economic benefits, manufacturing process conditions, national policy and industrial
standards. The results show that the ecological cost is reduced to 1385.69 yuan per ton after optimization, which is down by
456.8 yuan/ton compared with that before optimization, and the decrease is 24.79%. At the same time, the economic benefit
is increased to 1326.95 yuan/ton, 13.51% higher than that before the optimization. And it is suggested that the enterprises of
waste paper recycling should be intensive development in the future; properly control the price of waste paper, avoid the high
price of waste paper. The state should give a moderate economic compensation to waste paper recycling enterprise; it will
contribute to the win-win between its economy and ecological environment.
Figure 1:
The cost structure in unit process P
i
.
Recent Publications
1. Dai Tiejun (2015) A study on material metabolism in Hebei iron and steel industry analysis. Resources, Conservation
and Recycling 95(7):183-192.
2. Dai Tiejun (2011) The influence of iron flow on iron resource efficiency in the steel manufacturing process. Resources,
Conservation and Recycling 55(8):760-771.
3. Edens B and Graveland C (2014) Experimental valuation of Dutch water resources according to SNA and SEEA. Water
Resources and Economics 7:66-81.
4. Nakajima M, Kimura A andWagner B (2015) Introduction of material flow cost accounting (MFCA) to the supply chain:
a questionnaire study on the challenges of constructing a low-carbon supply chain to promote resource efficiency. Journal
of Cleaner Production 108(1):1302-1309.
5. Sulong F, Sulaiman M and Norhayati M A (2015) Material flow cost accounting (MFCA) enablers and barriers: the case
of a Malaysian small and medium-sized enterprise (SME). Journal of Cleaner Production 108(1):1365-1374.
Tiejun Dai, Int J Waste Resour 2018, Volume 8
DOI: 10.4172/2252-5211-C1-011