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Potential Of Using Surfactants To Enhance Ammonium And Nitrate Adsorption On Rice Husk And Its Biochar, Lada Mathurasa, Seelawut Damrongsiri
Potential Of Using Surfactants To Enhance Ammonium And Nitrate Adsorption On Rice Husk And Its Biochar, Lada Mathurasa, Seelawut Damrongsiri
Applied Environmental Research
Inorganic nitrogen fertilizers are widely and heavily used in agriculture. Leaching of these fertilizers is a cause of eutrophication in water bodies. This study examines the use of rice husk and its biochar, their efficiency in adsorption of ammonium and nitrate and the potential of using surfactants, sodium dodecyl benzenesulfonate (SDBS) and cetyl trimethyl ammonium bromide (CTAB), to increase adsorption. Physical and chemical properties of adsorbents were examined through BET, SEM-EDX, and CEC value, respectively. The equilibrium batch adsorption was conducted. The result showed that rice husk was lower in surface area, total pore volume, pore diameter, silica and oxygen …
Prevalence Of Fatigue And Its Determinants Among Chemical Transportation Drivers In Chonburi, Sujee Phatrabuddha, Thitima Wonginta, Nantaporn Phatrabuddha
Prevalence Of Fatigue And Its Determinants Among Chemical Transportation Drivers In Chonburi, Sujee Phatrabuddha, Thitima Wonginta, Nantaporn Phatrabuddha
Applied Environmental Research
Driver fatigue is a recognized risk factor for commercial road transport industry drivers. The aim of this cross-sectional research was to assess the fatigue and its determining factors among 99 chemical transportation drivers in Chonburi. Driving fatigue was assessed by both subjective questionnaire (n = 99) and flicker fusion instrument (n = 88). The association between driving fatigue and related factors were analyzed by Pearson's correlation and Chi-square (?2). The results revealed that the prevalence of fatigue as assessed by critical flicker fusion analyzer, subjective fatigue question and either one of the instruments were 32.32 %, 16.16 % and 43.43 …
Manganese Removal From Aqueous Solution By Ozonation Process Designed By Box-Behken Design (Bbd), Sunisa Jongdee, Tinnakorn Kumsaen, Kitirote Wantala
Manganese Removal From Aqueous Solution By Ozonation Process Designed By Box-Behken Design (Bbd), Sunisa Jongdee, Tinnakorn Kumsaen, Kitirote Wantala
Applied Environmental Research
The aim of this research was to investigate interactions in the removal of manganese from contaminated water by oxidation through an ozonation process. The manganese oxidation was used to oxidize manganese ions (Mn2+) in solution to manganese dioxide (MnO2) in its brown solid form, in order to reduce levels of manganese ions in the water to below the acceptable limit for drinking water (0.05 mg L-1). In this study, the independent effects such as the initial concentration of manganese (5, 10 and 15 mg L-1), initial pH of solutions (3, 4 and 5) and ozone concentrations (10.970, 21.945 and 32.920 …
Land Use And Land Cover Change Of Chanthaburi Watershed Following 1999, 2006 And 2013 Floods, Chuti Chatewutthiprapa
Land Use And Land Cover Change Of Chanthaburi Watershed Following 1999, 2006 And 2013 Floods, Chuti Chatewutthiprapa
Chulalongkorn University Theses and Dissertations (Chula ETD)
The application of remote sensing (RS) and Geographic Information System (GIS) has become an effective tool and widely used in monitoring the environment on the earth surface. In this study, Landsat imageries were used as a data to deal with the assessment of land use and land cover changes (LULC) before and after the 3-year floods in 1999, 2006 and 2013. The images were classified by supervised classification process and it can be identified as 9 classes consisting of paddy field, field crop, para rubber, orchard, aquacultural land, forest land, mangrove forest, urban and built-up area, and water bodies. The …
Revitalizing Tio Chew Chinese Cemetery Through A Design Of An Elderly Center, Khai Sin Lee
Revitalizing Tio Chew Chinese Cemetery Through A Design Of An Elderly Center, Khai Sin Lee
Chulalongkorn University Theses and Dissertations (Chula ETD)
Old cemeteries are often threatened by new urban development, which can result in them being closed, relocated or demolished. This thesis studies Tio Chew Cemetery in Bangkok as an alternative case based on its current unique use as a recreation area. Although without the threats of demolition, several on-site issues, both tangible and intangible, are facing Tio Chew Cemetery. To respond to these issues, a design of an elderly center is proposed to improve and revitalize the cemetery through the understanding of historical importance and contemporary design of new buildings in the old compound. This research applies a mixed methodology …
The Utilization Of Cashew Shell Residues And Grease Waste For Charcoal Briquette Production, Supaporn Pongthornpruek
The Utilization Of Cashew Shell Residues And Grease Waste For Charcoal Briquette Production, Supaporn Pongthornpruek
Applied Environmental Research
This study aims to investigate appropriate utilization of mixing grease waste (GW) from a canteen's grease trap with cashew shell charcoal (CSC) to produce briquette fuel by weight (GW:CSC) in the ratio 1:2, 2:2, 3:2 and 4:2. All different mixing ratios used starch paste as binding agent. The physical and chemical properties of briquette fuel were analyzed to verify its heating value components as specified by the American Society for Testing and Material (ASTM). In addition, in terms of heat utilization efficiency and pollution aspects, the content of carbon monoxide (CO) emissions from combustion were measured. The result of this …
Assessment Of Water Usage And Water Management In Mae Fah Luang University, Yanasinee Suma, Nittaya Pasukphun, Anuttara Hongthong, Vivat Keawdounglek
Assessment Of Water Usage And Water Management In Mae Fah Luang University, Yanasinee Suma, Nittaya Pasukphun, Anuttara Hongthong, Vivat Keawdounglek
Applied Environmental Research
A university may be compared by its size of population and activities to a small city, with high water consumption and in need of effective water conservation strategies. This study presents the results of a study of water consumption on the Mae Fah Luang University campus in Chiang Rai, Thailand. Consumption was classified by activity type, water usage and water saving behavior of students and staff. The results suggest strategies for water conservation on campus. With a water conservation plan focusing on residential areas (halls and homes), which accounted for the highest levels of consumption on the campus. The study …
Land - Water - Population Model: Developing An Agricultural Resources Management In The Upper Part Of Pranburi Watershed, Jirattinart Thungngern, Thavivongse Sriburi, Saowanee Wijitkosum
Land - Water - Population Model: Developing An Agricultural Resources Management In The Upper Part Of Pranburi Watershed, Jirattinart Thungngern, Thavivongse Sriburi, Saowanee Wijitkosum
Applied Environmental Research
This research proposes the application of the Land-Water-Population (LWPM) concept in the upper part of the Pranburi Watershed. The objective of the study is to develop a model for agricultural resources management under the Sufficiency Economy Philosophy (SEP). The methodology is divided into three parts; 1) evaluate the soil quality in agricultural areas, 2) analyze water quality in agricultural land; and 3) assess farmer practice in agricultural resources management using a questionnaire. The study findings point to problems in soil and water conservation, suggesting that in the area should prioritize agricultural management, as advocated under the SEP, which provides guidelines …
Comparison Of Co2 Emissions From Vehicles In Thailand, Sutthicha Nilrit, Pantawat Sampanpanish, Surat Bualert
Comparison Of Co2 Emissions From Vehicles In Thailand, Sutthicha Nilrit, Pantawat Sampanpanish, Surat Bualert
Applied Environmental Research
Emission of carbon dioxide (CO2), a greenhouse gas, from typical passenger vehicles in Thailand was investigated using a chassis dynamometer in the Automotive Emission Laboratory. The vehicle running method was controlled under the standard Bangkok driving cycle. CO2 emissions were measured at three different speeds for the following four vehicle types commonly used in Thailand: heavy duty diesel (HDD), light duty diesel (LDD), and light duty gasoline (LDG) vehicles and motorcycles (MC). HDD vehicles had the highest average CO2 emission rate, followed by LDD, LDG and MC at 1,198.8±93.1, 268.4±21.3, 166.1±27.7 and 42.5±6.1 g km-1, respectively; all values were significantly …
Treatment Of Piggery Wastewater By Three Grass Species Growing In A Constructed Wetland, Supaporn Pongthornpruek
Treatment Of Piggery Wastewater By Three Grass Species Growing In A Constructed Wetland, Supaporn Pongthornpruek
Applied Environmental Research
The study aimed to investigate the efficiency of piggery wastewater treatment by the surface flow constructed wetland with three different grass species; bulrush (Scirpus spp.), cattail (Typha angustifoliaL.), and vetiver grass (Vetiveria zizanioides L.). All pilot units were used for wastewater treatment by the flowing surface water system, giving a system carrying capacity of several 0.18 m3 d-1 of HLR with a 5 day hydraulic retention time (HRT). The results showed that the cattail pilot showed improvement in several wastewater quality indicators: biochemical oxygen demand (BOD), chemical oxygen demand (COD) and total kjeldahl nitrogen (TKN) with efficiencies of 80.59, 84.11 …
Removal Of Copper (Ii) From Aqueous Solutions Using Cuttlebone As Bio-Adsorbent, Pathompong Vibhatabandhu, Sarawut Srithongouthai
Removal Of Copper (Ii) From Aqueous Solutions Using Cuttlebone As Bio-Adsorbent, Pathompong Vibhatabandhu, Sarawut Srithongouthai
Applied Environmental Research
Biosorptionis an effective process for removal and recovery of heavy metal ions from aqueous solutions. In the present study, batch adsorption experiments were carried out for the removal of copper (Cu II) from aqueous solutions using cuttlebone powder (<100 µm)as a bio-adsorbent. The effects of initial pH, adsorbent dosage, initial concentration, and contact time on adsorption efficiency and capacity were studied to evaluate the optimum conditions for copper removal.The results found optimal conditions at initial pH of 5.0, 10 g L-1cuttlebone, 500 mg L-1initial concentration of Cu II in solution, and 150 min of equilibrium time.The Langmuir isotherm and pseudo-second order kinetic model were fitted to the experimental adsorption data. The maxi-mum adsorption capacity calculated from theLangmuir isotherm was 54.05 mg g-1. This result shows that cuttlebone is an effective bio-adsorbent, constituting a promising, efficient, low-cost, and eco-friendly technology bio-sorbent for reducing copper pollution during wastewater treatment.
Isotope Evidence Of Rainfall And Groundwater For Tracing Recharge Areas In Kaeng Khoi District, Saraburi Province, Thailand, Wanlapa Wisittammasri, Srilert Chotpantarat
Isotope Evidence Of Rainfall And Groundwater For Tracing Recharge Areas In Kaeng Khoi District, Saraburi Province, Thailand, Wanlapa Wisittammasri, Srilert Chotpantarat
Applied Environmental Research
This study was conducted in the districts of Kaeng Khoi and Muang, located in the center of Saraburiprovince, Central Thailand. The purpose was to use a stable isotope technique to iden-tify recharge areas where rainfall infiltrates. Analysis of stable isotopes in groundwater, surface water and rainwater were conducted in September 2014. Isotope compositions of groundwater were found to have dD values that ranged from -37.55‰ to -48.04‰ while d18O values ranged from -5.30‰ to -7.34‰. The Local Meteoric Water Line (LMWL) in the study area was indis-tinguishablefrom the Bangkok Local Meteoric Water Line (BKK LMWL), and the stable iso-tope values …
Application Of Wood Vinegar For Fungal Disease Controls In Paddy Rice, Wilawan Chuaboon, Nattapone Ponghirantanachoke, Dusit Athinuwat
Application Of Wood Vinegar For Fungal Disease Controls In Paddy Rice, Wilawan Chuaboon, Nattapone Ponghirantanachoke, Dusit Athinuwat
Applied Environmental Research
A survey of an outbreak of fungal diseases of rice variety Phitsanulok2 (PLS91014-16-1-5-1) was conducted in Thailand during June 2014 to January 2015 using aW-random sampling pat-tern. The study revealed the incidence of several diseases including brown spot (Bipolaris oryzae), narrow brown leaf streak (Cercospora oryzae), and dirty panicle (Alternaria padwickii, C. oryzae, Curvularia lunata, Fusarium semitectum, and B. oryzae). This study evaluated the ef-ficacy of wood vinegar for control of these fungal diseases. A compleel randomized design was used, using the above variety in 3 replications. In the laboratory we found wood vinegar to be effective in inhibiting growth …
Loss Of Value In House Properties Due To Air Pollution In Map Ta Phut Industrial Area Of Thailand, Nararuk Boonyanam
Loss Of Value In House Properties Due To Air Pollution In Map Ta Phut Industrial Area Of Thailand, Nararuk Boonyanam
Applied Environmental Research
Air pollution in the Map Ta Phut Industrial Estate in Thailand, has caused increasing risk of death, injury and health problems for local residents. Existing control measures are inef-fective due to weak law enforcement. Although the problem has drawn a lot of attention, the monetary value of the impacts of air pollution in Map Ta Phut is not known. The objective of this paper was to estimate the economic cost of air pollution damage in Map Ta Phut using theHedonic Pricing Method, with 192 house samples. The results showed that the marginal willing-ness to pay (MWTP) for a one unit …
Application Of Life Cycle Assessment Method For Environmental Impact Assessment Of Fired Brick Production Plant In Thailand, Rutjaya P. Na Talang, Sanya Sirivithayapakorn
Application Of Life Cycle Assessment Method For Environmental Impact Assessment Of Fired Brick Production Plant In Thailand, Rutjaya P. Na Talang, Sanya Sirivithayapakorn
Applied Environmental Research
In many Asian countries, fired bricksare producedby burning raw bricks in a rudimen-tary clamp kiln without pollution control mechanisms, a practice which contributes to several kinds of environmental impact. This research investigated the inputs and outputs associated with production of fired bricks using the rice husk-fuelled clamp kiln. Data collected includedraw material use, energy, products, emissions and kiln temperatures. To quantify environmental impacts, the consequential-focused life cycle assessment (LCA) approach was adopted. The impactswere assessed in terms of fuel substitution as the acquisition of another fuelwas re-quired to substitute for electricity. The findings indicated that the clamp kiln technology pro-duced …
Enhanced Biodegradation Of Spent Engine Oil Contaminated Soil Using Organic Wastes, Tolulope M. Obuotor, Abdulwasiu O. Sakariyau, Babatunde S. Bada
Enhanced Biodegradation Of Spent Engine Oil Contaminated Soil Using Organic Wastes, Tolulope M. Obuotor, Abdulwasiu O. Sakariyau, Babatunde S. Bada
Applied Environmental Research
Physical and chemical methods of remediating contaminated soils are less environment-friendly compared to the biodegradation method. This study investigated the ability of selected organic wastes to enhance biodegradation of Spent Engine Oil (SEO) contaminated soil. One kilogram of uncontaminated soil was thoroughly mixed with 10% (w/v) SEO in seven treatments with two replicates. Spent Fruit Residues (SFR), Cassava Peel (CP) and a combination of Bean Husk and Chromolaena odorata(BHC) were added at 10% and20% (w/w), with an untreated control. Total Heterotrophic Bacterial Count (THBC), Total Fungal Count (TFC), Total Hydro-carbon Degrading Bacterial Count (THDBC) and Total Hydrocarbon Degrading Fungal Count …
The Establishment Of A Community-Based Mangrove Forest Management Plan: Lessons Learned From Mangrove Forest Conservation In The Nernkhor Sub-District, Rayong Province, Thailand, Piyapong Janmaimool
The Establishment Of A Community-Based Mangrove Forest Management Plan: Lessons Learned From Mangrove Forest Conservation In The Nernkhor Sub-District, Rayong Province, Thailand, Piyapong Janmaimool
Applied Environmental Research
This study aims to investigate key elements of community-based ecological management (CBEM) in a rural area with plentiful mangrove resources. The investigated elements of CBEM include stakeholders' benefits from sharing ecosystems services provided by themangrove forests, stakeholders' roles in ecological conservation, and their participation in decision-making processes at each stage of the ecological management process. Additionally, the study intends to reveal factors that determine the success of CBEMcreation processes, including agenda setting, matching, restructuring, clarifying, and the routinizing stage. Semi-structured interviews and group discussions were conducted with relevant stakeholders, such as community leaders, typical villagers, fishermen, and local businessmen residing …
Biosand Filter (Bsf): Types And Mechanisms Behind Its Efficiency, Dao Janjaroen
Biosand Filter (Bsf): Types And Mechanisms Behind Its Efficiency, Dao Janjaroen
Applied Environmental Research
More than 760 million people around the world lack access to clean drinking water. A biosand filter was developed through the collaboration of research groups in developing and developed countries. This type of filter is considered a point-of-use filtration system that can be easily in-stalled at home, and has shown promising results. Thousands of these filters have been distributed and are currently in use in developing countries around the world, helping to alleviate poor water quality conditions. Although these filters have been proven to improve water quality in terms of biological contaminants, there are still concerns over their ability to …
Measuring The Impacts Of A Save Food Campaign To Reduce Food Waste On Campus In Thailand, Panate Manomaivibool, Chidsanuphong Chart-Asa, Pattayaporn Unroj
Measuring The Impacts Of A Save Food Campaign To Reduce Food Waste On Campus In Thailand, Panate Manomaivibool, Chidsanuphong Chart-Asa, Pattayaporn Unroj
Applied Environmental Research
This study measured the impact of an awareness campaign to reduce food waste on campus. Information cues were installed at strategic locations in a canteen to engage university students in food waste prevention. Stickers with food ordering tips were placed in front of the food vendors. Information cards about resource use in food production were placed on dining tables to remind students to finish what they had ordered. Other materials of the save food campaign such as pos-ters and banners carried messages and images to elicit a pro-environmental norm. Students were also encouraged to share their support through social media …
Application Of Rice Stubble Synthesized Zeolite For Greenhouse Gas Reduction, Patthanant Natpinit, Rewadee Anuwattana, Thitirat Ditkaew, Tawee Suppinunt
Application Of Rice Stubble Synthesized Zeolite For Greenhouse Gas Reduction, Patthanant Natpinit, Rewadee Anuwattana, Thitirat Ditkaew, Tawee Suppinunt
Applied Environmental Research
his investigation aims to study the value of synthesized zeolite in reducing greenhouse gasses (GHGs) emitted by rice stubble. The experiment was divided into 2 parts. Part I com-prised a study of the efficiency of GHGs reduction by synthesized zeolite and part II involved application of synthesized zeolite to reduce the cumulative GHGs emissions over 110 days from paddy rice cultivation in Khlong 4, Pathum Thani Province. The experiments comprised 2 treatments: untreated control (I), and rice stubble with addition of synthesized zeolite (II). The study measured changes in the emissions of CH4 and CO2, conducted 3 d per week …
Synthesis And Scaling Up Of Fe3+ By Sol-Gel Method Doped On Ceramic Foam For Decolorization Of Reactive Red Dyeing Wastewater, Pongsak Khaowin, Prukraya Pongyeela, Pichayapan Kongpanna, Juntima Chungsiriporn
Synthesis And Scaling Up Of Fe3+ By Sol-Gel Method Doped On Ceramic Foam For Decolorization Of Reactive Red Dyeing Wastewater, Pongsak Khaowin, Prukraya Pongyeela, Pichayapan Kongpanna, Juntima Chungsiriporn
Applied Environmental Research
Wastewater from the Batiktextile industry contains large amounts of dyestuff together with significant amounts of suspended solids (SS), dispersing agents, salts and trace amounts of me-tals. Since this can lead to severe environmental problems, proper wastewater treatment pro-cesses are essential. The synthesis of Fe3+by sol-gel method doped on a ceramic foam for reac-tive red and disperse dyes removal from synthetic dye wastewater. Inthis research, the effect of color concentration, amount of catalyst and volumetric flow rates for industrial scale were studied.The Fe3+catalyst was prepared by sol-gel method in which 3M of FeCl3was used as a pre-cursor. The synthesized catalyst was …
The Analysis Of Garbage Management Tools Based On The Levels Of Transactional Collaboration Between Shipping Company And Seaport, Chalermpong Senarak, Kamonchanok Suthiwartnarueput, Pongsa Pornchaiwiseskul
The Analysis Of Garbage Management Tools Based On The Levels Of Transactional Collaboration Between Shipping Company And Seaport, Chalermpong Senarak, Kamonchanok Suthiwartnarueput, Pongsa Pornchaiwiseskul
Applied Environmental Research
Marine garbage reception facilities can effectively prevent marine pollution when adequately implemented together with other management tools. This paper analyzes the garbage manage-mentpolicy based on transactions between shipping companies and the seaport. Multivariate analysis of variance (MANOVA) was used to scrutinize the influence of transactional colla-boration (independent variable) on the different reasons for using GRF of the shipping firms (dependent variable). The study indicates that the motivations of ship operators (identified as laws and regulations, navigation limitations, partnerships, competitiveness and environmentalconsciousness), varies depending on frequency of transaction during the year. Management po-licies varied by ship operator. In addition, an over-optimistic …
Proper Dissemination Of Information To Improve People Awareness On Flood Disaster: A Case Study Of 2011 Flood In Thailand, Neelima A. Molla, Jatuwat Sangsanont, Parinda Thayanukul, Hiroaki Furumai
Proper Dissemination Of Information To Improve People Awareness On Flood Disaster: A Case Study Of 2011 Flood In Thailand, Neelima A. Molla, Jatuwat Sangsanont, Parinda Thayanukul, Hiroaki Furumai
Applied Environmental Research
The study aims are to investigate the people perception on flood response, flood awareness and information dissemination during 2011 flood, to discuss the proper information needed for flood preparedness, and to understand drinking water preferences during emergency periods. A question-naire survey was conducted to collect information on flood awareness and preparedness from the people residing in a suburb of Bangkok that was one of the most severely affected areas. Re-sults showed that more than 90% of public realized the necessity of flood awareness. Flood risk per- ception level was positively correlated with age. There were gender differrences in priorit y …
Determination Of Spatial And Temporal Variations Of Volumetric Soil Water Content Using Ground Penetrating Radar: A Case Study In Thailand, Thanop Thitimakorn, Suppanut Kummode, Sasikan Kupongsak
Determination Of Spatial And Temporal Variations Of Volumetric Soil Water Content Using Ground Penetrating Radar: A Case Study In Thailand, Thanop Thitimakorn, Suppanut Kummode, Sasikan Kupongsak
Applied Environmental Research
In this research, ground penetrating radar (GPR) was used to determine the volumetric soil water content (VSWC) of a loamy soil. The GPR was set up in the ground wave fixed offset me-thod using both 400 and 900 MHz frequency antennae. By estimating the relative dielectric per-mittivity of the soils, these values were converted to the VSWC by Topp's equation. The gra-vimetrically calculated VSWC values from the soil samples at different depths were used as thereferences. In addition, the ability of the GPR method to detect variation in the VSWC over time was evaluated in three periods spanning the dry …
Examining Co-Management Of National Parks Through The Lens Of Common-Pool Resource Design Principles: A Comparative Case Study Of Liwonde And Majete In Malawi, Timothy M. Chana, Panate Manomaivibool
Examining Co-Management Of National Parks Through The Lens Of Common-Pool Resource Design Principles: A Comparative Case Study Of Liwonde And Majete In Malawi, Timothy M. Chana, Panate Manomaivibool
Applied Environmental Research
Co-management which was founded on common-pool resource design principles has been popularized in solving sustainability challenges of nat ional parks. Co-management was im-posed on all national parks in Malawi under the 2000 Wildlife Policy. However, such a top-down approach might neglect the local contexts that influenced policy implementation. The objective of this study was to examine the implementation of co-management and determine the extent of conformity to Ostrom's eight design principles. The Institutional Analysis and Development (IAD) framework was engaged through a qualitative case study of Liwonde National Park and Majete Wildlife Reserve. Based on co-management documentations and key informant …
Environmental And Health Impact Of Cement Factory Production In Ibese, Ogun State, Nigeria, Olayinka O. Olasumbo, Adedeji O. Hakeem, Oresanya O. Juwon, Alabi-Thompson O. Francisca
Environmental And Health Impact Of Cement Factory Production In Ibese, Ogun State, Nigeria, Olayinka O. Olasumbo, Adedeji O. Hakeem, Oresanya O. Juwon, Alabi-Thompson O. Francisca
Applied Environmental Research
This study investigated the effect of cement dust emitted from Dangote cement factory, Ibese, Ogun State, Nigeria on the environment and human health. Soil and plant samples were collected from six sampling points at different distances i.e. inside the factory kiln (IFK), the factory gate (TFG ? 50 m); Abule Oke (AOK ? 100 m), Maria (MAR ? 200 m), and Ibese (IBE ? 300m), based on the prevailing wind direction. Control samples were taken opposite the wind direction at ILA (Ilaro) about 1,000 m. Cu, Zn, Mn, Pb, Ni and Cd were analyzed in the samples using atomic absorption …
Greenhouse Gas Emission In Jewelry Industry: A Case Study Of Silver Flat Ring, Parnuwat Usapein, Chantra Tongcumpou
Greenhouse Gas Emission In Jewelry Industry: A Case Study Of Silver Flat Ring, Parnuwat Usapein, Chantra Tongcumpou
Applied Environmental Research
This paper describes an assessment of the carbon footprint (CF) of a silver ring, together with an attempt to measurematerial and energy consumption. The boundary of analyzing CF was defined as Business to Business (B2B). All primary data were obtained from a survey of the case study factory. Acquisition of raw material (silver) was the main GHG contribution to the overall CF and was thus considered as a CF hotspot. Acquisition accounted for 0.9740 kg CO2e or 94.44% of total emissions, followed by production processes (0.0573 kg CO2e) and tran-sportation (0.002 kg CO2e). The total CF amounted to 1.03 kg …
The Econometric Model Of Ship-Generated Operational Waste: The Underlying Tool For Waste Management In Container Port, Chalermpong Senarak
The Econometric Model Of Ship-Generated Operational Waste: The Underlying Tool For Waste Management In Container Port, Chalermpong Senarak
Applied Environmental Research
Marine pollution prevention through adequate provision of garbage reception facility (GRF) is a legal obligation of every port. According to MARPOL 73/78, each port authority should explore ways to increase its ability to prevent marine pollution from ship-generated waste. The paper supports this legal requirement by developing an econometric model for estimating the amount of operational waste delivered at GRF. The multiple regression with ordinary least squares technique was used to analyze the relationship between the amount of operational waste per month and two explanatory variables - size of ship and travelling distance from the last port of discharge. Data …
Acidic Recovery From Wastewater Of Automotive Battery Plant Using Membrane Technology, Nantanee Chaimongkalayon, Sudtida P. Thanasupsin
Acidic Recovery From Wastewater Of Automotive Battery Plant Using Membrane Technology, Nantanee Chaimongkalayon, Sudtida P. Thanasupsin
Applied Environmental Research
Diffusion dialysis (DD) equipped with anion exchange membranes (AEMs) is used as an effective tool to recover acidfrom various types of waste acid solutions. The aim of this study was to investigate the possibility of using the DD process to recover sulfuric acid (HsSO4) from the acidic wastewater from an automotive battery plant. A numbers of experimental runs was conducted to optimize the equipment's operating conditions, particularly variations in feed flow and flow rate ratios . The results showed that H2SO4 permeated well through the AEM, while metal ions were efficiently rejected. The recovery of H2SO4 increased as flow rate …
A Hybrid Law Model For The Management Of Waste Electrical And Electronic Equipment: A Case Of The New Draft Law In Thailand, Panate Manomaivibool, Sujitra Vassanadumrongdee
A Hybrid Law Model For The Management Of Waste Electrical And Electronic Equipment: A Case Of The New Draft Law In Thailand, Panate Manomaivibool, Sujitra Vassanadumrongdee
Applied Environmental Research
Waste electrical and electronic equipment (WEEE) has been high on the environmental policy agenda of many countries due to its rapidly increasing volume and concerns over its toxicity and the critical metals it holds. To date, 59 countries have passed laws for WEEE management (ex-cluding State level legislation in the USA and Canada). Most of these laws are based on the principle of extended producer responsibility (EPR) but their treatment of allocation of respon-sibility and system operation differ considerably. This study reviews the implementation models of EPR which are classified into two broad groups: producer compliance schemes and governmental funds. …