Journal Issue: EnNRJ Vol. 10 No. 1
9
Issued Date
2012
Resource Type
Language
tha
eng
eng
File Type
application/pdf
Access Rights
open access
Rights
ผลงานนี้เป็นลิขสิทธิ์ของมหาวิทยาลัยมหิดล ขอสงวนไว้สำหรับเพื่อการศึกษาเท่านั้น ต้องอ้างอิงแหล่งที่มา ห้ามดัดแปลงเนื้อหา และห้ามนำไปใช้เพื่อการค้า
Rights Holder(s)
Faculty of Environment and Resource Studies Mahidol University
Journal Volume
EnNRJ Volume 10
(2012)
Articles
Waste water minimization: Utilization of rubber latex residue and swine dung as fertilizer for Para rubber seedling growth
(2012-06) Thanya Uttraporn; Saranya Sucharitaku; Gritsanaruck Theeraraj; Chumporn Yuwaree; Charlie Navanugraha; Rungjarat Hutacharoen; Rungjarat Hutacharoen; Mahidol University. Faculty of Environment and Natural Resource Studies
Centrifuged residue of concentrated latex production is the by-product or waste of latex
processing of the Hevea tree (Heveabrasiliensis). The 10-15% residue of fresh latex causes
waste disposal cost and environmental problems for factories. Because this residue contains
some nutrients (N, P, K) in available forms, it can potentially enhance para-rubber tree growth.
However, this centrifuged residue (CR) has some small rubber pieces mixed within that needs to
be blended to prevent soil problems. The waste of swine dung or manure (SD) has similar
problems on farms. This waste contains some essential plant nutrients, but it requires a period of
time for microorganisms to decompose into the available compounds for plant growth. Thus, the
blended fertilizer of latex residue with swine dung can potentially act as a preferable blended
fertilizer because the nutrients from both wastes can enhance the plant growth from the initial
stage. The aim of this study was to study the feasibility and effectiveness of the blended
fertilizer at consideration ratio of 1:1 (CR and SD) alone and at nutrient adjustment to equal to
chemical fertilizer usage for Hevea tree as a study case. We found that the blended fertilizer was
feasible for para rubber seedlings, from the view point of growth enhancement, soil properties
and water leachates.
Framework for LCI modelling towards green logistic systems
(2012-12) Trakarn Prapaspongsa; Løkke, Søren; Trakarn Prapaspongsa; Mahidol University. Faculty of Engineering. Department of Civil and Environmental Engineering
In order to establish green logistic systems, life cycle assessment (LCA) is an important
tool for evaluating and comparing overall environmental impacts from various options. Most
LCA studies rely on readily available secondary databases on transport services such as
Ecoinvent database and scientific publications. The most widely applied Ecoinvent database on
transport services is aggregated with specific transport variables and statistics based on
European and Swiss average data. To modify the life cycle inventory (LCI) database with
specific variables (e.g. load factors, driving speed, etc.) is very complicated and may not be
possible. Such studies are still lacking due to complexity and resource limitations. This study
aims to provide a framework for LCI modelling to conduct LCAs of European freight transport
with up-to-date LCI data in terms of emissions and transport variables. The framework
comprises of a conceptual transport model, important transport variables and data sources for
freight transport by road and by rail in Europe. The data collection was carried out by literature
studies and interviews with relevant experts. The framework is useful for LCA practitioners,
researchers and industries to include specific transport variables and to adequately assess the
environmental impacts from transport activities by road and by rail.
Title
EnNRJ Vol. 10 No. 1
Author's Affiliation
Mahidol University. Faculty of Environment and Resource Studies
มหาวิทยาลัยมหิดล. คณะสิ่งแวดล้อมและทรัพยากรศาสตร์
มหาวิทยาลัยมหิดล. คณะสิ่งแวดล้อมและทรัพยากรศาสตร์
Keyword(s)
Climate change
Biodiversity
Disaster
Ecological
Environmental modelling
Environmental dynamics
Environmental pollution
Emerging contaminants
Transboundary pollution
Waste and wastewater treatments
Hazardous wastes
Natural resource management
Multidisciplinary sciences
Environment and Natural Resources Journal
Biodiversity
Disaster
Ecological
Environmental modelling
Environmental dynamics
Environmental pollution
Emerging contaminants
Transboundary pollution
Waste and wastewater treatments
Hazardous wastes
Natural resource management
Multidisciplinary sciences
Environment and Natural Resources Journal