Journal: Environment and Natural Resources Journal
66315
Issued Date
2008
Resource Type
Language
eng
ISSN
2408-2384 (online)
1686-5456 (print)
1686-5456 (print)
Rights
Mahidol University
Rights Holder(s)
Faculty of Environment and Resource Studies Mahidol University
Journal Volumes
EnNRJ Volume 6
(2008)
EnNRJ Volume 7
(2009)
EnNRJ Volume 8
(2010)
EnNRJ Volume 9
(2011)
EnNRJ Volume 10
(2012)
Title
Environment and Natural Resources Journal
Alternative Title(s)
Environ. Nat. Resource. J.
Other Contributor(s)
Abstract
The Environment and Natural Resources Journal (Environ. Nat. Resour. J.) is a peer-reviewed and freely available online journal, published in six issues per year by the Faculty of Environment and Resource Studies, Mahidol University, Thailand. The journal publishes the original research articles in all areas of environmental science and natural resource management with emphasis on Asia and Southeast Asia. All articles are considered for publication in this journal with the understanding that they must not be previously published in another journal or simultaneously submitted for publication elsewhere. The journal follows the double-blind peer review process to maintain the quality in the published articles. The submitted manuscripts are evaluated by at least two independent reviewers in the relevant fields and must be approved by the editorial board before being accepted for publication.
Description
Indexed in international databases as follows: "Scopus [CiteScore: 0.05(June 2018)]", "Clarivate Analytics [BIOSIS Preview, Biological Abstracts, Zoological records]", "EBSCOhost", "Directory of Open Access Journals [DOAJ]" "ASEAN Citation Index [Indexed in national database "Thai-Journal Citation Index Centre [TCI]" Thai-Impact Factor 2016= 0.567ACI]"
4 issues a year
4 issues a year
Collections
90 results
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Now showing 1 - 10 of 90
Publication Open Access Stakeholder engagement practice: An experience in IWRM-Based Mekong River basin development plan forum(2010-08) Weng Tan, Kok; Jongdee Toim; Bin Mokhtar, Mazlin; Jongdee Toim; Mahidol University. Faculty of Environment and Natural Resource StudiesExtensive population growth and usage have led to increasing unplanned development pressures within the basin and these have caused many direct threats to valuable ecosystems in the region. This poses a significant threat to biodiversity and environmental sustainability, and thereby to the livelihoods of the Mekong communities. Stakeholder participation is an integral part of integrated approach on water resources management, which the Mekong River Commission (MRC) adopted in its Strategic Plan 2006-2010. Likewise, stakeholder participation is particularly important for the Basin Development Plan (BDP), the umbrella programme of the MRC to promote the joint planning function as an inter-governmental river basin organisation for sustainable development of the Lower Mekong Basin (LMB). This paper aims to provide overview of lesson learned for the BDP practice which was held during 15-16 October 2009 in Chiang Rai, Thailand. Mekong River Basin is international trans-boundary basin and has spanned up to six countries. The development issues have international implications and can only be resolved through the effective regional coordination and cooperation framework. MRC has demonstrated a series of stakeholder engagement activities for the region such as forum, special meeting and online forum. Nevertheless, it should not become the symbolic activities to fulfill the engagement and participation process.Publication Open Access Effect of the Waste Heat Recovery System to Buoyancy and Momentum Flux of Combustion Stack in the Cement Industry(2019) Jutarat Keawboonchu; Wissawa Malakan; Wisit Thongkum; Sarawut Thepanondh; Mahidol University. Faculty of Public health. Department of Sanitary EngineeringBuoyancy and momentum fluxes are important parameters to determine the plume rise which is related to the ability to dilute air pollutants emitted from combustion stack sources. The change of temperature due to waste heat recovery directly affects these fluxes. This study analyzed buoyancy and momentum fluxes and evaluated the ground level concentration of PM-10 prior and after implementation of waste heat recovery in the area surrounding one of the largest cement production plants in Thailand. The results showed that the ambient temperature was the significant parameter affecting buoyancy and momentum fluxes. The buoyancy flux was found to be the dominant force to the rise of plume for both scenarios. There were no differences in the predicted PM-10 ground level concentrations at receptorsaround the cement plant for the model simulation under two scenarios. Therefore, it was concluded that decreasing of stack gas exit temperature does not affect the dispersion of air pollutants in the cement industryPublication Open Access การผลิตปุ๋ยหมักร่วมจากเศษอาหารและกากของเสียของโรงงานผลิตสารให้ความหวาน(2009-06) วิษณุพงค์ เกลี้ยงช่วย; ไกรชาติ ตันตระการอาภา; ธนาศรี สีหะบุตร; สุเทพ ศิลปานันทกุล; พิศิษฐ์ วัฒนสมบูรณ์; มหาวิทยาลัยมหิดล. คณะสาธารณสุขศาสตร์. ภาควิชาวิทยาศาสตร์อนามัยสิ่งแวดล้อมการศึกษาวิจัยในครั้งนี้เป็นการผลิตปุ๋ยหมักร่วมจากเศษอาหารและกากของเสียจากโรงงานผลิตสารให้ความหวาน เศษอาหารจากโรงอาหารของคณะสาธารณสุขศาสตร์ มหาวิทยาลัยมหิดลและกากของเสียจากกระบวนการผลิต สารให้ความหวานจากโรงงานอุตสาหกรรม โดยการศึกษาอัตราส่วนผสมระหว่างกากของเสียต่อเศษอาหารใน อัตราส่วนดังต่อไปนี้ 0:100, 10:90, 20:80, 30:70, และ 40:60 ทำการหมักเป็นระยะเวลา 9 สัปดาห์ จากนั้นนำปุ๋ย หมักที่ผลิตได้มาตรวจวิเคราะห์ปริมาณโลหะหนักที่ปนเปื้ อนหลังจากการหมักสมบูรณ์ ในแต่ละชุดของการ ทดลองมีการเปรียบเทียบกับเกณฑ์มาตรฐานของประเทศไทยและประเทศต่างๆผลการศึกษาพบว่าปุ๋ยหมักร่วมพบ ปริมาณของโลหะหนักที่พบมีทั้งสิ้น 4 ธาตุ คือ สารหนู ตะกั่ว โครเมียม และทองแดง มีปริมาณอยู่ในช่วง 0.02 - 0.31, 0.79 - 3.03, 1.60 - 4.78 และ 3.26 - 7.81 มิลลิกรัมต่อกิโลกรัม ตามลำดับ และปริมาณความเข้มข้นของโลหะ หนัก 3 ธาตุ คือ สารหนู ตะกั่ว โครเมียม ในแต่ละอัตราส่วน มีความแตกต่างกันอย่างมีนัยสำคัญทางสถิติ (p-value < 0.05) ยกเว้นธาตุทองแดง และปริมาณโลหะหนักยังอยู่ในเกณฑ์ที่ยอมให้มีได้ตามข้อกำหนดของปุ๋ยหมักจาก มูลฝอยของประเทศไทย ทวีปอเมริกาและทวีปยุโรป สำหรับธาตุอาหารหลัก ได้แก่ ไนโตรเจนทั้งหมด ฟอสฟอรัส ที่เป็นประโยชน์ และโปแทสเซียมทั้งหมด ในปุ๋ยหมักร่วมทั้ง 5 อัตราส่วน มีปริมาณอยู่ในช่วง 1.53 - 8.05, 0.18 - 0.48 และ 0.0538 - 0.1026 % ตามลำดับ ส่วนความชื้น พีเอชและอัตราส่วนระหว่างคาร์บอนต่อไนโตรเจน มี ปริมาณอยู่ในช่วง 0.39 - 0.64% , 6.21-6.97 และ 4.98 - 18.03 ตามลำดับPublication Open Access Impact of Climate Change on Reservoir Reliability: A Case of Bhumibol Dam in Ping River Basin, Thailand(2561) Allan Sriratana Tabucanon; Areeya Rittima; Detchasit Raveephinit; Yutthana Phankamolsil; Wudhichart Sawangphol; Jidapa Kraisangka; Yutthana Talaluxmana; Varawoot Vudhivanich; Wenchao Xue; Mahidol University. Faculty of Environment and Resource Studies; Mahidol University. Faculty of Engineering; Mahidol University. Faculty of Information and Communication Technology; Kasetsart University. Faculty of Engineering; Kasetsart University. Faculty of Engineering at Kamphaeng; Asian Institute of Technology. Department of Energy Environment and Climate ChangeBhumibol Dam is the largest dam in the central region of Thailand and it serves as an important water resource. The dam’s operation relies on reservoir operating rules that were developed on the basis of the relationships among rainfall-inflow, water balance, and downstream water demand. However, due to climate change, changing rainfall variability is expected to render the reliability of the rule curves insecure. Therefore, this study investigated the impact of climate change on the reliability of the current reservoir operation rules of Bhumibol Dam. The future scenarios from 2000 to 2099 are based on EC-EARTH under RCP4.5 and RCP8.5 scenarios downscaled by RegCM4. MIKE11 HD was developed for the inflow simulation. The model generates the inflow well (R2=0.70). Generally, the trend of increasing inflow amounts is expected to continue in the dry seasons from 2000-2099, while large fluctuations of inflow are expected to be found in the wet seasons, reflecting high uncertainties. In the case of standard deviations, a larger deviation is predicted under the RCP8.5 scenario. For the reservoir’s operation in a climate change study, standard operating procedures were applied using historical release records to estimate daily reservoir release needed to serve downstream water demand in the future. It can be concluded that there is high risk of current reservoir operating rules towards the operation reliability under RCP4.5 (80% reliability), but the risk is lower under RCP8.5 (87% reliability) due to increased inflow amounts. The unmanageability occurs in the wet season, cautioning the need to redesign the rules.Publication Open Access Maceral Association in Coal-bearing Formation of Mae Than Coal Mine in Lampang, Thailand - Implication for Depositional Environment(2022) Thunyapat Sattraburut; Benjavun Ratanasthien; Mahidol University. Faculty of Environment and Resource Studies; Chiang Mai University. Faculty of Science. Department of Geological SciencesThe Mae Than Basin in Lampang Province contains low-ranked coal reserves of northern Thailand. Coal seams and ball clays were mined in the southern part of the basin. This study focuses on the coal petrography of coal samples collected from the upper coal seam in the Mae Than Coal Mine. Both the organic and inorganic constituents provide information on the nature and characteristics of the coal, reflecting the physical and chemical behaviors of coal. Petrological analysis reveals that the Mae Than coals contain more huminite than liptinite macerals, while inertinite is negligible. Huminite occurs mainly in the form of texto-ulminite, textinite, densinite, and gelinite. Liptinite consists of sporinite, cutinite, resinite, suberinite, liptodetrinite, and terpenite. The morphology of cutinite, sporinite, and the presence of terpenite indicate that the peat-forming vegetation may consist of conifers. In addition to the macerals, the coal samples contain a small to moderate amount of mineral matter. Silica and clay minerals are the main minerals found in the cavities and between the cracks of the coals. The assemblage of macerals and mineral matter indicates that the Mae Than coals were formed mainly from common peat-forming vegetation, possibly conifers, in a freshwater forest swamp or mire in a warm temperate climate. In addition, the high degree of preservation of the macerals indicates a high water table and suggests rheotrophic, anoxic, limnotelmatic to telmatic conditions during deposition.Publication Open Access Geographic information system for risk area assessment on natural gas pipeline construction in Nakhon Nayok Province(2010-04) Ponson Chernkwansri; Sura Pattanakiat; Charlie Navanugraha; Mahidol University. Faculty of Environment and Natural Resource StudiesThe objective of this study is to identify potential risk areas caused by the pipeline construction project in Nakhon Nayok province. The potential surface analysis was employed for the manipulation process using critical factors including soil drainage, clay minerals, soil texture, slope, relative humidity, air quality index, distances from bodies of water, roads, and the pipeline. The evaluation of weighting and rating scores has been proposed by experts using 2 main methods, including scaling and hierarchical methods. The risk areas have been divided into high, moderate and low levels. The outputs of these two methods are compared. It was found that the risk areas identified by the scaling method consist of high risk areas of 316.69 square kilometers (14.77%), moderate risk area of 1,523.05 square kilometers (71.04%), and low risk areas of 304.12 square kilometers (14.19%). Meanwhile, the risk areas evaluated by the hierarchical method consist of high risk areas of 219.47 square kilometers (10.24%), moderate risk areas of 1,839.05 square kilometers (85.78%), and low risk areas of 85.34 square kilometers (3.9%). The comparison of those two methods using the Kappa index has shown the value of 0.66. Thus, those two methods were only in the relation of 66 %. The assessment on land utilization within the high risk areas was analyzed based on the output of the scaling method with larger high risk areas. The land use patterns found in the high risk area include the following areas agriculture of 200.50 square kilometers (63.31%), urban of 74.71square kilometers (23.59%), forest of 5.35 square kilometers (1.69%), water bodies 20.71 square kilometers (6.54%), and others 15.42 square kilometers (4.87%). The purpose of this study was to apply the Geographic Information System for to identify potential risk areas. Geographic Information System (GIS) are a set of computer tools for collecting, storing, transforming and displaying spatial data from the real world.Publication Open Access Kinetic Adsorption of Hazardous Methylene Blue from Aqueous Solution onto Iron-Impregnated Powdered Activated Carbon(2019) Athit Phetrak; Sirirat Sangkarak; Sumate Ampawong; Suda Ittisupornrat; Doungkamon Phihusut; Mahidol University. Faculty of Tropical Medicine. Department of Social and Environmental Medicine; Mahidol University. Faculty of Tropical Medicine. Department of Tropical Pathology; Department of Environmental Quality Promotion. Environmental Research and Training Center; Chulalongkorn University. Environmental Research InstituteIn this study, iron-impregnated powderedactivated carbon (Fe-PAC) prepared using chemical co-precipitation techniques was used as an adsorbent for methylene blue (MB) removal in a batch experiment. The analysis of transmission electron microscopy, scanning electron microscopy with energy dispersive spectroscopy showed that iron oxide particle was substantially distributed into the surface of the adsorbent, suggesting that Fe-PAC was successfully synthesized. The results showed that fast and efficient adsorption of MB by Fe-PAC was achieved, witha relative short contact time of 10 min and MB adsorption capacity of 51 mg/g. The kinetic adsorption of MB on Fe-APC adsorbent was well described by a pseudo-second-order model. Concurrently, the analysis of intraparticle diffusion model suggests that intraparticle diffusion is not the only rate-limiting step of MB molecules adsorption by Fe-PAC adsorbent. The elevated temperature conditions also improved the removal efficiency of MB. Thermodynamic parameters exhibited by the MB adsorption process onto Fe-PAC were endothermic and spontaneous. The findings of the present work indicate that Fe-PAC can be a potentially effective adsorbent for MB removal in wastewater due to its fast and efficient MB adsorption, and separation in wastewater treatment systems.Publication Open Access Indoor Air Quality in Public Health Centers: A Case Study of Public Health Centers Located on Main and Secondary Roadsides, Bangkok(2022) Natlada Boonphikham; Chatchawal Singhakant; Suwimon Kanchanasuta; Withida Patthanaissaranukool; Tawach PrechthaiThis cross-sectional study investigated the indoor air quality (IAQ) of public health centers (PHCs) and primary health care units in Bangkok to determine the impact of the different locations and ventilation systems concerning IAQ. Three indoor air pollutants: PM2.5, CO2, and CO were measured in three areas (medical record departments, outpatient departments and examination rooms) of six PHCs located in two different locations (main and secondary roadsides). The results showed that the average levels of PM2.5, CO2, and CO in the PHCs located on main roadsides were higher than those located on secondary roadsides. Among these parameters, only CO was found to significantly differ between those two locations indicating the result of vehicles and traffic sources regarding indoor CO level. Furthermore, all parameters were compared among the sampling areas with different ventilation systems; natural ventilation and air conditioner with and without ventilation fan. The amounts of all three pollutants significantly differed in each area with different ventilation systems. The average levels of PM2.5 and CO2 were the highest in areas with air conditioner without ventilation fan, while the level of CO was the highest in areas with natural ventilation. The ventilation was proved to be a key measure to improve IAQ. PHCs should consider ventilation efficacy to improve the IAQ by using ventilation fans in rooms using air conditioners. Finally, the average levels of all parameters were found below the recommended values in related standards, indicating safe IAQ for people working and receiving services in PHCs.Publication Open Access Soil physicochemical status and nutrient management for paddy soils in the lower central plain of Thailand after the flood disaster in 2011(2014-06) Benjaporn Intorpetch; Worachart Wisawapipat; Chumlong Arunlertaree; Piyakarn Teartisup; Mahidol University. Faculty of Environment and Natural Resource StudiesThe soil fertility status were evaluated for 29 paddy soils in Phra Nakhon, Si Ayutthaya and Pathum Thani provinces, Thailand that had been affected by the flood disaster in 2011. The chemical fertility status of the soils in the flood affected areas was medium, which is relatively superior to the pre-flood condition. The available potassium in most soils was slightly larger (mean = 220 mg kg-1) than the values previously reported on these soils (mean = 188 mg kg-1). However, mean values of available phosphorus for most soils were rather small (7.5 mg kg-1), indicating a loss of phosphorus fertility and those farmers in the flood affected areas needed to apply additional phosphorus fertilizer in order to achieve satisfactory crop yields. Liming should also be used to minimize potential Al/metals toxicity and correct imbalances of plant nutrients. Several plant nutrients (NPK) and organic materials need to be regularly applied to maintain soil fertility levels at optimum values.Publication Open Access Color Removal of Pulp and Paper Mill Wastewater Using Residual Eucalyptus Wood(2022) Kanjana Yupin; Thanakrit Neamhom; Chatchawal Singhkant; Siranee Sreesai; Supawadee PolprasertThis study investigated the color removal efficiency of pulp and paper mill wastewater using residual eucalyptus wood as a method to minimize the solid wastes generated from pulp and paper processes. The activated carbon used in this study as the color adsorbent was produced from residual eucalyptus wood. The carbon was activated with phosphoric acid and carbonized in a furnace at 500°C for 60 min. Effects of types and amounts of activated carbon on color removal efficiency were evaluated. Three types of solid wastes, consisting of wood chip, bark, and mixed wood (wood chip:bark, 1:1), were investigated at a loading of 1, 3, 5, and 7 g/100 mL under contact times of 30, 60, 90, and 120 min. The results showed that 7 g of wood chip activated carbon/100 mL under all contact times gave color removal efficiency of 94-97%. However, the highest adsorption capacity of 216 ADMI/g occurred at 1 g of adsorbent used. Freundlich isotherms were satisfactorily fitted to experimental data for the best condition with high correlation coefficients. The color removal efficiency depended on surface area, pore volume, structure, and characteristics of the activated carbon.