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Applying The New Theory To Assessment Criteria Of Agricultural Water Management Schemes For Sustainable Rain-Fed Agriculture In Thailand, Anutra Wannaviroj, Thavivongse Sriburi
Applying The New Theory To Assessment Criteria Of Agricultural Water Management Schemes For Sustainable Rain-Fed Agriculture In Thailand, Anutra Wannaviroj, Thavivongse Sriburi
Applied Environmental Research
This paper describes the selection of assessment criteria to assess agricultural water management schemes for on-farm ponds to support sustainable rain-fed agriculture, guided by the New Theory of His Majesty King Bhumibol Adulyadej. The candidate set of criteria was obtained from several international and national sources related to sustainable rain-fed agriculture and the New Theory. The criteria were reviewed and modified by the expert team based on the goals of the New Theory in order to define an initial site-specific set of criteria that conform with the context of socio-topographical conditions of Thailand. The team screened,assessed, and prioritized the criteria …
Waste Composition Evaluation For Solid Waste Management Guideline In Highland Rural Tourist Area In Thailand, Nittaya Pasukphun, Yanasinee Suma, Anuttara Hongtong, Vivat Keawdunglek, Pussadee Laor, Tawatchai Apidechkul
Waste Composition Evaluation For Solid Waste Management Guideline In Highland Rural Tourist Area In Thailand, Nittaya Pasukphun, Yanasinee Suma, Anuttara Hongtong, Vivat Keawdunglek, Pussadee Laor, Tawatchai Apidechkul
Applied Environmental Research
This study investigated municipal solid waste generation rate and its compositionincluding the level of knowledge, attitude and practice on municipal solid waste (MSW) management of highland rural tourist area in Chiang Rai Province, Mae Salong Nok Sub-district, Thailand in order to propose the guidelines for effective MSW in rural tourist areas. Samples of MSW were collected during weekdays and several weekends, and separated into 4 categories: general,recyclable, organic and hazardous waste. About 40 % of the MSW consisted of organic waste; plastic bags were widely present, comprising more than 60 % of the mass of the general waste group. Level …
Sustainable Transition Models For Municipal Solid Waste Management: A Case Study Of Saraburi Provincial Administration Organization, Thailand, Siwaree Boonthavornsatien, Dawan Wiwattanadate
Sustainable Transition Models For Municipal Solid Waste Management: A Case Study Of Saraburi Provincial Administration Organization, Thailand, Siwaree Boonthavornsatien, Dawan Wiwattanadate
Applied Environmental Research
Municipal solid waste (MSW) generation exceeding the capacity of mechanical biological treatment (MBT) plants is a major problem for most municipalities in Thailand. The problem is serious for the Saraburi Provincial Administration Organization (SPAO) as the high daily volumes of MSW sent to the SPAO greatly exceeds the MBT plant capacity of 20 ton d-1. This results in accumulation and ultimately, open-dumping of MSW. Transition from a small (< 50 ton d-1) to a medium-sized cluster (50 - 300 ton d-1) is under consideration to address this problem. Therefore, this study evaluated pre-feasibility information, comparing two possible transition models. Model 1 proposes modification of the existing MBT plant to enlarge its capacity to 50 ton d-1, while Model 2 would require establishing a new medium-sized MBT plant (50 - 70 ton d-1). Results from field data collection as well as mass balance calculation and financial modelling indicate that without additional income from tipping or MSW management fee as well as sale of recyclable materials and scrap metals, both models exhibit negative net present value (NPV) or are not economically feasible due to high initial investment in machinery. However, sensitivity analysis based on an expected fall in future machinery prices indicates that the NPV for both models become positive if prices fall by a minimum 20 %. Due to the much higher initial investment, but the higher capacity with higher separation technology and the higher environmental benefits as well as higher ratings for sustainable development indicators, Model 2 is recommended for a long-term transition. Model 1 can still be recommended for a short - to medium-term transition. Results from in-depth interviews also confirm that Model 1, which offers additional local employment and incomes from selling recyclable materials and scrap metals would be the more feasible option owing to familiarity with the process and its lower initial investment requirement.
Updated Basis Knowledge Of Climate Change Summarized From The First Part Of Thailand's Second Assessment Report On Climate Change, Atsamon Limsakul, Boonlue Kachenchart, Patama Singhruck, Suriyan Saramul, Jerasorn Santisirisomboon, Somkiat Apipattanavis
Updated Basis Knowledge Of Climate Change Summarized From The First Part Of Thailand's Second Assessment Report On Climate Change, Atsamon Limsakul, Boonlue Kachenchart, Patama Singhruck, Suriyan Saramul, Jerasorn Santisirisomboon, Somkiat Apipattanavis
Applied Environmental Research
Recent evidence and key issues on climate change in Thailand have been presented in the first part of Thailand's Second Assessment Report on Climate Change (2ndTRAC). The report highlights key findings including 1) a significant country-wide warming of 1.30 oC over the past 48 years (1970-2017); b) significant changes in rainfall patterns at smaller spatial and finer temporal scales; c) significant changes in temperature and rainfall extreme events over the last four-five decades; d) a significant decrease in frequency of tropical cyclones entering Thailand; e) significant rise in sea level in the seas around Thailand at higher rates than the …
Preliminary Study Of Distribution And Quantity Of Plastic-Debris On Beaches Along The Coast At Phuket Province, Pensiri Akkajit, Sudarat Thongnonghin, Siriporn Sriraksa, Supissara Pumsri
Preliminary Study Of Distribution And Quantity Of Plastic-Debris On Beaches Along The Coast At Phuket Province, Pensiri Akkajit, Sudarat Thongnonghin, Siriporn Sriraksa, Supissara Pumsri
Applied Environmental Research
The beach sediment samples from Kalim, Tri Trang, and Patong Beaches, Phuket Province, southern of Thailand were collected for preliminary investigation on coastal debris. A total of 9 samples were taken from a 1 x 1 m quadrat at the depth of 5 cm, parallel with the shore during the period of maximum low tides in November, 2018. Microplastics (particles size < 5 mm) were extracted using sodium chloride (1.15 g mL-1) and their characteristics- including abundance (items m-2), weight (g), density (itemsm-2), color and shape- were determined using a stereo microscope. The results showed that microplastic debris varied in abundance from 1 to 35 items m-2 at the three selected beaches, depending on sampling location. In comparison, abundance of macroplastic (> 2.5 cm) and mesoplastic debris (5 mm to 2.5 cm) varied from 1 item m-2 quadrat (Kalim Beach) to 38 items (Patong Beach), 9 items (Tri Trang Beach) and 68 items (Patong Beach) m-2. Blue fibers were predominant among …
Utilization Of Fruit Waste For Bioethanol Production By Co-Cultures Of Aspergillus Niger And Saccharomyces Cerevisiae, Nutchanat Chamchoi
Utilization Of Fruit Waste For Bioethanol Production By Co-Cultures Of Aspergillus Niger And Saccharomyces Cerevisiae, Nutchanat Chamchoi
Applied Environmental Research
The purpose of this research was to study the effectiveness of simultaneous fermentation offruit waste with co-cultures of Aspergillus niger TISTR 3063 and Saccharomyces cerevisiaeTISTR 5606 in production of ethanol. The effect of fermentation temperature on ethanol yield was also observed. Pomelo and banana peels were selected as substrates and prepared by chopping into small rectangular pieces. Fermentation of batches of fruit waste was carriedout using a 250mL Erlenmeyer flask with glucose as a control. Analysis of the composition of the fruit waste included sugar, pH, TS, VS, ash, moisture, COD and TKN. From the results, it was found that …
Environmental Soil, Water, And Sediment Quality Of Dong Thang Landfill In Can Tho City, Vietnam, Huynh T. H. Nhien, Giao T. Nguyen
Environmental Soil, Water, And Sediment Quality Of Dong Thang Landfill In Can Tho City, Vietnam, Huynh T. H. Nhien, Giao T. Nguyen
Applied Environmental Research
This study is a preliminary assessment of water, soil, and bottom sediment quality at and around Dong Thang landfill in Co Do district, Can Tho city, Vietnam. Four canal water samples, one leachate sample, and three soil samples from the surrounding rice fields, two bottom sediment samples from the canals, and one bottom sediment sample from the leachate pond were examined for this purpose. The results revealed that the leachate sample contained six heavy metals (Mn, Fe, Cu, Zn, Cr, and Ni) with high electrical conductivity (EC), biochemical oxygen demand (BOD), chemical oxygen demand (COD), total suspended solids (TSS), ammonia …
Avifauna Survey Within A University Campus And Adjacent Forest Fragment In Bicol, Eastern Philippines, Jocelyn E. Serrano, Jonathan J.G. Guerrero, Josiah D.G. Quimpo, Giovani C. Andes, Erwin N. Bañares, Mheljor A. General
Avifauna Survey Within A University Campus And Adjacent Forest Fragment In Bicol, Eastern Philippines, Jocelyn E. Serrano, Jonathan J.G. Guerrero, Josiah D.G. Quimpo, Giovani C. Andes, Erwin N. Bañares, Mheljor A. General
Applied Environmental Research
With the lack of baseline information on avifauna within Bicol University and the adjacent forest fragment, this research aimed to identify bird species and compare their presence between an urbanized and forest areas. Avian diversity was documented within the Kalikasan Park and Bicol University Main Campus adjacent ecosystems, representing a forest fragment and semi-urbanized ecosystems, respectively. Bird survey was carried out through point count method. Identification was aided by existing taxonomic keys. A total of 44 species were recorded with eleven as Philippine endemics. Lonchura malacca(Chestnut Munia) and Aplonis panayensis (Asian Glossy Starling) were among the most frequently sighted. Bird …
Virulence Factors And Antibiotic Resistance Of Escherichia Coli O157:H7 Isolated From Ogun River, Abeokuta Metropolis, Nigeria, Lateefat M. Ewuoso, Saka A. Balogun, Sarafadeen O. Kareem, Temilade F. Akinhanmi
Virulence Factors And Antibiotic Resistance Of Escherichia Coli O157:H7 Isolated From Ogun River, Abeokuta Metropolis, Nigeria, Lateefat M. Ewuoso, Saka A. Balogun, Sarafadeen O. Kareem, Temilade F. Akinhanmi
Applied Environmental Research
Although Escherichia coli (E. coli)is a harmless gut microbe in man, some strains of this bacterium are pathogenic due to the acquisition of virulence factors. The aim of this study isto investigate E. coli O157:H7 strains isolated from Ogun River, Abeokuta metropolis, for virulence factors and antibiotic resistance. Water samples were collected bimonthly from six different locations over a period of six months. The samples were cultured on Sorbitol MacConkey Agar and E. coli O157:H7 isolates were confirmed through serological characterization using the latex agglutination test. The presence of virulence genes (stx1, stx2, eae, and hylA) in the isolates was …
Relationship Between Annual Average Concentration Of Ambient Pm10 And Out-Patients With Respiratory Disease: Thailand Case Study, Thoucha Rummasak
Relationship Between Annual Average Concentration Of Ambient Pm10 And Out-Patients With Respiratory Disease: Thailand Case Study, Thoucha Rummasak
Applied Environmental Research
The objectives of this research were to identify (1) correlation between annual average concentration of ambient PM10 and prevalence of out-patients with respiratory diseases; (2) the relative risk and attributable proportion of out-patients with respiratory disease due to long-term exposure to ambient PM10; and (3) the correlation between annual average concentration ofambient PM10 and the relative risk of out-patients with respiratory disease. Time-series data of annual average concentration of ambient PM10 and prevalence rate of out-patients with respiratory disease during an 11- year period (2004-2014) in the study area were obtained from the Pollution Control Department, Ministry of Natural Resources …
Role Of Natural Wetlands In Arsenic Removal From Arsenic-Contaminated Runoff, Vanlop Thathong, Netnapid Tantamsapya, Chatpet Yossapol, Chih-Hsiang Liao, Wanpen Wirojanagud
Role Of Natural Wetlands In Arsenic Removal From Arsenic-Contaminated Runoff, Vanlop Thathong, Netnapid Tantamsapya, Chatpet Yossapol, Chih-Hsiang Liao, Wanpen Wirojanagud
Applied Environmental Research
This research aims to identify the role of natural wetlands in arsenic (As) removal. Phu Lek wetland in Loei Province, Thailand, was selected as the study area. Monthly samples of water (144), plant (360), and sediment (144) were collected from the wetland for 24 months. As concentration in the surface water at the wetland inlet was 0.85±0.26 mg L-1, and 0.02±0.01 mg L-1 at the wetland outlet. It was observed that the As level in water decreased significantly along its flow path, with an As removal efficiency of 98 %. As concentration in the sediment was 89.53-356.22 mg kg-1 at …
Application Of A Mixed Order Model To Determine The Rate Adsorption Of 1-Nitronaphthalene Onto Activated Carbon, Suntree Rincome
Application Of A Mixed Order Model To Determine The Rate Adsorption Of 1-Nitronaphthalene Onto Activated Carbon, Suntree Rincome
Applied Environmental Research
This study investigated the adsorption kinetics of 1-nitronaphthalene solution (a polycyclic aromatic hydrocarbon, PAH) onto seven different masses of activated carbon. The coefficient of determination (r2) was used to determine the best-fit kinetic model and to confirm agreement between experimental data and the kinetic rate equations. The results indicated that adsorption could be defined with masses of 0.0200 g and 0.0501 g when fitted using a second order rate equation. Adsorption on to masses of 0.1003 g, 0.1203, 0.1501 g, and 0.2001 g was best defined when data were fitted to a pseudo second order rate equation. However, adsorption onto …
Social Integration Of Foreign Students In Korean Higher Education : A Case Study Of Southeast Asian Student In Seoul National University, Supatcha Thubsook
Social Integration Of Foreign Students In Korean Higher Education : A Case Study Of Southeast Asian Student In Seoul National University, Supatcha Thubsook
Chulalongkorn University Theses and Dissertations (Chula ETD)
This study aims to understand social integration of Southeast Asian students who studied in Seoul National University by using Bosswick & Heckman social integration theory in order to understand social integration and how important of language towards foreign students help them in specially adjust themselves into Korean society. The important of language is used to examine social integration. The qualitative approach was applied in this study. Four dimensions of social integration theory are acknowledged as the central components of successful integration: structural, cultural, interactive, and identification. And the samples were 20 Southeast Asian students in Seoul National University. The research …
Microbial Synthesis And Characterization Of Silver Nanoparticles Using Alternaria Alternata, Sarafadeen O. Kareem, Oluwagbenga T. Familola, Adejare R. Oloyede, Enock O. Dare
Microbial Synthesis And Characterization Of Silver Nanoparticles Using Alternaria Alternata, Sarafadeen O. Kareem, Oluwagbenga T. Familola, Adejare R. Oloyede, Enock O. Dare
Applied Environmental Research
In this study, extracellular biosynthesis of silver nanoparticles (AgNPs) was carried out using Alternaria alternata. AgNPs were synthesized using vegetative and cell-free filtrate methods. Silver nitrate (AgNO3) solution was reduced with fungal mycelial mass and cell-free filtrate at a ratio of 1:4 (v/v). Further, the effects of biosynthesis parameters (reaction time, reaction temperature, light and dark incubation, and static and agitated conditions) were determined. The structural integrity of the synthesized AgNPs was investigated through UV-visible spectrophotometry, X-ray diffraction (XRD) analysis, and transmission electron microscopy (TEM). Parameter optimization revealed that cell-free filtrate AgNP synthesis at 40 °C with constant agitation and …
Assessment Of Hearing Loss Among Workers In A Power Plant In Thailand, Pensri Watchalayann, Laksana Laokiat
Assessment Of Hearing Loss Among Workers In A Power Plant In Thailand, Pensri Watchalayann, Laksana Laokiat
Applied Environmental Research
Noise exposure in the working environment is a major cause of hearing impairment for workers; an audiogram hearing threshold level above 20 dB is considered irregular. In this study, audiometric data were analyzed with the objective of assessing hearing loss among power plant workers based on their age, noise exposure level, years of working, and work characteristics. A cross-sectional study was conducted to assess hearing level data for 672 workers reserved by the Health Care Unit of the power plant. The most recent audiometric data presented during 2013-2015 were used in the statistical analysis at 5 % level of significance. …
Synthesis Of Calcium Oxide From River Snail Shell As A Catalyst In Production Of Biodiesel, Sasiprapha Kaewdang, Rotjapun Nirunsin
Synthesis Of Calcium Oxide From River Snail Shell As A Catalyst In Production Of Biodiesel, Sasiprapha Kaewdang, Rotjapun Nirunsin
Applied Environmental Research
This research studied synthesis of calcium oxide from river snail shells by calcination at 700,800 and 900 °C for 4 h, and its subsequent use as a catalyst for biodiesel production. The calciumoxide fraction in calcined river snail shell was analyzed by X-ray fluorescence (XRF), X-ray diffraction (XRD) and scanning electron microscopy (SEM). The XRF result showed calciumoxide levels of 59.499 %, 70.113 % and 73.88 1%, respectively, at corresponding calcination temperatures of 700, 800 and 900 °C. The SEMimages revealed porous, rough, and fragile surfaces which became agglomerated at elevated temperatures. The calcium oxide obtained from each calcination temperature …
Reduction Of Ghg Emissions Using Zeolite 4a Under Different Fertilizer Usages In Rice Cultivation, Patthanant Natpinit, Borisut Chantrawongphaisal, Rewadee Anuwattana, Thitirat Ditkaew, Chotika Kongsomboon, Phavit Thapnui, Phongsak Hongcharoensri
Reduction Of Ghg Emissions Using Zeolite 4a Under Different Fertilizer Usages In Rice Cultivation, Patthanant Natpinit, Borisut Chantrawongphaisal, Rewadee Anuwattana, Thitirat Ditkaew, Chotika Kongsomboon, Phavit Thapnui, Phongsak Hongcharoensri
Applied Environmental Research
This investigation examined the potential of zeolite 4A to reduce emission of greenhouse gases (GHGs) in rice cultivation under different fertilizer regimes. A completely randomized design was used with four treatments (different fertilizer application method) and 2 blocks (zeolite 4A application, using rice variety RD-41 sown at a seed rate of 15.625 g m-2, and harvested in 105 d in Lam Ta Khong Research Station, Nakhon Ratchasima. The experimental results demonstrated that significant reduction in GHG emissions in zeolite 4A treated plots, either alone or in combination with chemical fertilizers, with GHG reduction of 43.27 % and 34.69 %, respectively. …
Swot Analysis For Preliminary Study Of Municipal Waste Management Toward A Zero Waste Highland Community In Northern Thailand, Nittaya Pasukphun, Anuttara Hongtong, Vivat Keawdunglek, Yanasinee Suma, Pussadee Laor, Tawatchai Apidechkul
Swot Analysis For Preliminary Study Of Municipal Waste Management Toward A Zero Waste Highland Community In Northern Thailand, Nittaya Pasukphun, Anuttara Hongtong, Vivat Keawdunglek, Yanasinee Suma, Pussadee Laor, Tawatchai Apidechkul
Applied Environmental Research
This research aims to investigate the situation of municipal waste management in the highlands of Chiang Rai, Thailand in order to formulate a preliminary strategic action plan for efficient management of municipal solid waste. In-depth interviews, questionnaires and discussions between government officers and community residents were conducted, in addition to analysis of the composition of solid waste in the municipality. SWOT analysis (Strengths, Weaknesses, Opportunities, and Threats) of current municipal waste management was performed and considered together with the assessment indicators of zero waste management: geo-administrative, socio-cultural, management, environment, economic, organization and governance and policy, in order to identify key …
Development Of Work-Rest Model For Reducing Fatigue In A Long Distance Among Chemical Truck Drivers: Case Study In An Industrial Gas, Sujee Phatrabuddha, Thitima Wonginta, Nantaporn Phatrabuddha
Development Of Work-Rest Model For Reducing Fatigue In A Long Distance Among Chemical Truck Drivers: Case Study In An Industrial Gas, Sujee Phatrabuddha, Thitima Wonginta, Nantaporn Phatrabuddha
Applied Environmental Research
This study examined the impact of rest breaks on driver fatigue. The study developed and tested a work-rest model to reduce fatigue for chemical truck drivers, following International Labor Organization (ILO) guidelines. The model was tested on a small sample of workers driving from a gas filling plant in Sattahip District, Chonburi Province to Muang District, Samut Sakorn Province. To test the model, data on driver fatigue was assessed using an interview questionnaire and a flicker fusion instrument, and the Z-test was used to compare fatigue among three work-rest patterns. The results showed 24% of working time (173 min) for …
Seasonal And Annual Trends Of Rainfall And Streamflow In The Mae Klong Basin, Thailand, Alamgir Khalil, Areeya Rittima, Yutthana Phankamolsil
Seasonal And Annual Trends Of Rainfall And Streamflow In The Mae Klong Basin, Thailand, Alamgir Khalil, Areeya Rittima, Yutthana Phankamolsil
Applied Environmental Research
This study examined seasonal and annual trends of rainfall and streamflow data in the Mae Klong Basin, Thailand. Monthly data of eight key rainfall stations and ten streamflow stations were analyzed to detect trends using the non-parametric Mann-Kendall test, whilst the magni-tude of the trends was determined by Sen's slope method for the period 2000-2015. For 75% ofthe analyzed stations,rainfall was found to increase in the wet season and decrease in the dry season. Station 130013 situated in the lower region showed a statistically significant increasing trend with a trend slope of 16.02 mma-1in the wet season, while station 130042-also …
Pm10 And Pm2.5 From Haze Smog And Visibility Effect In Chiang Mai Province Thailand, Thitaporn Jeensorn, Pornphan Apichartwiwat, Wanida Jinsart
Pm10 And Pm2.5 From Haze Smog And Visibility Effect In Chiang Mai Province Thailand, Thitaporn Jeensorn, Pornphan Apichartwiwat, Wanida Jinsart
Applied Environmental Research
Air pollution from haze smog in Chiang Mai Thailand has become a serious problem, with fine particulate matter (FPM), PM10and PM2.5, as the main culprits. These pollutants haveserious effects on health and affect visibility in transportation and tourism. In this study, reduction in visibility was monitored using a digital camera, video records and aerial photography. Visibility in Chiang Mai was analyzed using qualitative and quantitative methods. Visibility was directly measured by GPS and Google Earth mapping. Visibility reduction from haze events was also compared by image analysis in Deciview units. Fine particulate matter concentrations and frequency of fires in Chiang …
Natural Radioactivity In Groundwater In Phra Nakhon Si Ayutthaya Province, Paradee Kodcharin, Udorn Youngchuay, Sopa Chinwetkitvanich
Natural Radioactivity In Groundwater In Phra Nakhon Si Ayutthaya Province, Paradee Kodcharin, Udorn Youngchuay, Sopa Chinwetkitvanich
Applied Environmental Research
This research aims to study the specific activity of natural radioactivity in groundwater samples taken in the area of Phra Nakhon Si Ayutthaya Province, Thailand. Totally, sixty groundwater samples collected from wells in eight districts were monitored and determined for radionuclides 226Ra, 232Th and 40K and gross alpha and beta were determined using high resolution gamma spectrometer and Canberra Tennelec Series 5 gas flow proportional counter, respectively. Most of the sixty wells serve for water consumption and some other wells for agricultural. The results showed that the average activity concentrations of the gross alpha and beta were 0.01±0.007 and 0.15±0.02 …
Contribution Of Root Respiration To Soil Respiration During Rainy Season In Dry Dipterocarp Forest, Northern Thailand, Punlop Intanil, Anusorn Boonpoke, Montri Sanwangsri, Phongthep Hanpattanakit
Contribution Of Root Respiration To Soil Respiration During Rainy Season In Dry Dipterocarp Forest, Northern Thailand, Punlop Intanil, Anusorn Boonpoke, Montri Sanwangsri, Phongthep Hanpattanakit
Applied Environmental Research
Soil respiration (Rs) plays a key role in regulating the terrestrial carbon cycle. The nature of this role is determined by the different responses of root respiration (Rr) and microbial respiration (Rm) to environmental factors such as precipitation, soil moisture and temperature. Understanding these responses is fundamental to improving our predictions of climate change impacts on carbon cycling processes. In this study, the ratio of root respiration to soil respiration (Rr/Rs) was studied to improve our understanding of soil CO2emissions. The study aimed to improve our knowledge of Rr in relation to rainy season soil environmental factors in a dry …
Stakeholder Involvement In Developing Environmental Indicators For The Lam Nam Yang Part 1 Watershed In The Northeastern Thailand, Warintorn Khunanake, Art-Ong Pradatsudara, Sura Pattanakiat
Stakeholder Involvement In Developing Environmental Indicators For The Lam Nam Yang Part 1 Watershed In The Northeastern Thailand, Warintorn Khunanake, Art-Ong Pradatsudara, Sura Pattanakiat
Applied Environmental Research
Stakeholder involvement is recognized as critical to successful long-term watershed management.Approaches to developing sustainable watershed management plans are based upon selection and weighting of a set of relevant indicators on which the watershed's sustainability and health can be measured. This study aimed to identify key environmental issues affecting the Lam Nam Yang Part 1 watershed in Thailand, and to work with stakeholders to develop a set of environmental indicators to support sustainable watershed management. The study used a community survey and key informant interviews to obtain stakeholder inputs into the process. Applying the Driver-Pressure-State-Impact-Response (DPSIR) framework, key environmental issues were …
Stakeholders' Perspectives Of Design Options For A Rooftop Solar Pv Self-Consumption Scheme In Thailand, Kespanerai Kokchang, Sopitsuda Tongsopit, Siripha Junlakarn, Wichsinee Wibulpolprasert, Morrakot Tossabanyad
Stakeholders' Perspectives Of Design Options For A Rooftop Solar Pv Self-Consumption Scheme In Thailand, Kespanerai Kokchang, Sopitsuda Tongsopit, Siripha Junlakarn, Wichsinee Wibulpolprasert, Morrakot Tossabanyad
Applied Environmental Research
Adoption of solar photovoltaic (PV) power generation systems has been accelerating around the world, contributing to the debate about the future of policy and regulation in a high distributed energy resources future. As one of the leaders in solar investment in Southeast Asia, Thailand has recently shifted its policy framework for the support of small scale, distributed solar PV systems from subsidizing power export through feed-in tariff toward a policy that is focused on self-consumption. This paper investigates stakeholder perspectives of the detailed design options for self-consumption schemes for supporting rooftop solar PV installations. The research methodology employed questionnaires and …
The Effect Of Steam And Glycerol Pretreatment On Chemical Contents Of Oil Palm Empty Fruit Bunch (Efb), Ornjira Choopakar, Chongchin Polprasert, Panagiotis Elefsiniotis, Supawadee Polprasert
The Effect Of Steam And Glycerol Pretreatment On Chemical Contents Of Oil Palm Empty Fruit Bunch (Efb), Ornjira Choopakar, Chongchin Polprasert, Panagiotis Elefsiniotis, Supawadee Polprasert
Applied Environmental Research
This research aimed to evaluate the effect of the type of solvent, pH, substrate loading, and reaction time on the chemical components of palm empty fruit bunches (EFB). Steam pretreatment was set up at a temperature of 121 °C and pressure of 1.18 bar, using an autoclave with substrate loading of 5, 10, 15 and 20 % w/v at reaction times of 15 and 60 min. Distilled water, waste glycerol, alkaline glycerol and acidic glycerol were compared as solvents during steam pretreatment. The results showed that with distilled water, better pretreatment was achieved at 5 % and 10 % loading …
Understanding The Weathering Process Of Antimony Minerals: Case Study Sb-Mine Sulzburg, Black Forest, Germany, Sakonvan Chawchai, Raphael Bissen
Understanding The Weathering Process Of Antimony Minerals: Case Study Sb-Mine Sulzburg, Black Forest, Germany, Sakonvan Chawchai, Raphael Bissen
Applied Environmental Research
Concerns about heavy metal and metalloid contamination from mine dumps is one of the most intensively discussed issues in society, politics, and academia, because of the levels of pollution, and its toxic properties. During the Middle Ages the Black Forest was one of the most successful mining areas in Southwestern Germany. Historical records show that Sulzburg was a mining town in the Black Forest since the 10th century, but was abandoned in the 19th century. Nowadays this town is considered as an important recreation area in the country. Therefore, soil and water quality and any contamination are of great concern. …
Effect Of Acid-Alkaline And Thermal Pre-Treatment To Cassava Pulp Feed For Batch Reactors In Optimization Of Bio-Methane Yield, Htay A. Pyae, Nittaya Boontian, Usa Yingchon, Chatlada Piasai
Effect Of Acid-Alkaline And Thermal Pre-Treatment To Cassava Pulp Feed For Batch Reactors In Optimization Of Bio-Methane Yield, Htay A. Pyae, Nittaya Boontian, Usa Yingchon, Chatlada Piasai
Applied Environmental Research
Cassava starch mills in Nakhon Ratchasimaprovince operate biogas plants to generate renewable energy from surplus cassava pulp using anaerobic digestion (AD) technologies. However, the biogas yields fluctuate and digestion failure occurs due to suboptimal digester configuration and lack of understanding of the specific properties of cassava pulp substrate. This study used acid-alkaline and thermal pre-treatment to modify the cassava pulp substrate to enhance biogas yields. Concentrated 36N sulphuric acid (H2SO4) and 20M sodium hydroxide (NaOH) was chosen as an acid-alkaline pre-treatment to adjust to the required pH for the substrates, and 45 minat 200 °C for the thermal pre-treatment. Extreme …
Risk Management Of Lead And Arsenic Poisoning In Children Through Public Participation In Communities Near Abandoned Tin Mine, Southern Thailand, Anchalee Pongkaset, Banchong Witthayawirasak
Risk Management Of Lead And Arsenic Poisoning In Children Through Public Participation In Communities Near Abandoned Tin Mine, Southern Thailand, Anchalee Pongkaset, Banchong Witthayawirasak
Applied Environmental Research
Tamtalu Subdistrict, Bannangsta District in Yala Province, southern Thailand was the site of an abandoned tin mine, and was contaminated by lead and arsenic from the mine tailings. As children are a high risk group from these highly toxic contaminants, this study aimed to identify approaches to reduce children's exposure in the area. The study was conducted through participatory action research (PAR) to empower the community strengthen sustainable risk management. The participants were local public health officials, public health volunteers, parents of local children and local community leaders. The participants were engaged in activities relating to risk communication, training on …
Quantification Of Environmental Flow Requirement Of The Khun Dan Prakan Chon Dam Using Hydrological-Hydraulic-Habitat Simulation Methods, Penpicha Nakvachara, Areeya Rittima, Yutthana Talaluxmana
Quantification Of Environmental Flow Requirement Of The Khun Dan Prakan Chon Dam Using Hydrological-Hydraulic-Habitat Simulation Methods, Penpicha Nakvachara, Areeya Rittima, Yutthana Talaluxmana
Applied Environmental Research
With increased water demand, reservoir operation has become more complex with the need to quantify the exact amount of water needed for each demand sector. The environmental flow requirement, also known as instream flow is regarded as the first-prioritized objective of the multipurpose water resources projects in Thailand. The capability of reservoirs in Thailand to allocate water for environmental needs depends on available supply, strategies and operating policy. Therefore, this study aims to assess the environmental flow requirements of Khun Dan PrakanChon Dam using three methods; 1) the hydrological method (Tennant, Tessmann, 7Q10, FDC, and VMF), 2) hydraulic method (R2CROSS …