Preliminary application of industrial symbiosis approach to management of phosphorous slag in Tang loong industrial zone, Lao cai, Vietnam | |
| Author | Nghiem Viet Hai |
| Call Number | AIT RSPR no.EV-15-04 |
| Subject(s) | Symbiosis Industrial--Ecology Industrial ecology--Vietnam |
| Note | A research submitted in partial fulfillment of the requirements for the degree of Master of Science (Professional) in Environmental Engineering and Management |
| Publisher | Asian Institute of Technology |
| Series Statement | |
| Abstract | Tang Loong industrial zone (IZ) was established in 2006 in Lao Cai province. Like many industrial zones in Vietnam, Tang Loong IZ was created under pressures of attracting investments, creating jobs, creating income, demands for product s, rapid industrialization strategies from provincial government. Therefore, the zone was built without a master plan, which considers carefully local natural resources, natural condition, communities and potential environment and economic impacts. Tang Loong IZ has several chemical factories, especially the yellow phosphorus companies, which create many environmental problems that cause significant impacts on local communities. In addition, the zone is also lacks of essential environmental treatment system s such as centralized wastewater system, sewage system, solid waste storage and landfill. This study was conducted to examine application of “industrial symbiosis” approach , particularly through the material flow analysis to assess current waste generation , wastes management and potential “material linkage” between different types of industry . The results show that currently there are 5 yellow phosphorus companies with the actual production of 62,000 , 000 tonnes/year. These generated 430,000 tonnes of phosphorous slag per year which is mainly stored at the backyard of the companies due to the unavailability of a designated landfill. Findings indicate that the phosphorus slag, instead of going to landfill, can be used as raw material for Portland cement production . Hazardous wastes generated by the IZ can be treated by co - fuelling in a cement factory. Recommendations on IZ composition and new management approached employing the “industrial symbiosis” are proposed in order to reduce environmental impacts, save costs in operation and promote sustainable development. With the proposed alternative waste material flow the environmental performance indicators of recycle waste ratio (RWR) would increase from existing values of less than 0.1 to almost 1.0 . |
| Year | 2015 |
| Corresponding Series Added Entry | |
| Type | Research Study Project Report (RSPR) |
| School | School of Environment, Resources, and Development (SERD) |
| Department | Department of Energy and Climate Change (Former title: Department of Energy, Environment, and Climate Change (DEECC)) |
| Academic Program/FoS | Environmental Engineering and Management (EV) |
| Chairperson(s) | Nguyen Thi Kim Oanh |
| Examination Committee(s) | Visvanathan, Chettiyappan;Thammarat Koottatep |
| Degree | Research report (M. Eng.) - Asian Institute of Technology, 2015 |