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Articles 1 - 30 of 32
Full-Text Articles in Social and Behavioral Sciences
Production Of Natural Dyed Palm Yarns And Fabrics, Chanphen Chumsang, Pitak Upan
Production Of Natural Dyed Palm Yarns And Fabrics, Chanphen Chumsang, Pitak Upan
Applied Environmental Research
Palm fibreis a waste product from the fruit crushing-extracting process in local communities. This study examined the characteristics of natural dyed palm yarns and fabrics producedfrom treated palm fibres. The results showed that fibre characteristics were improved by anaerobic fermentation, and following crushing and carding, were 3-5 times smaller, softer and more pliable.In the production of palm/cotton yarns of No. 7 (50/50), No.10(40/60), No.16(30/70)andNo.10(0/100),the 3-5 denier palm yarns and cotton yarns were spun in open-end spinning units. Regarding the physical properties, the blended yarns showed more unevenness and higher tensile strength and elongation at break than 100% cotton yarn. However, …
Geochemical Pollution Assessment Of Sediment Metal From Lower Region Of The Ogun River, Nigeria, Anslem Diayi, Michael Gbadebo
Geochemical Pollution Assessment Of Sediment Metal From Lower Region Of The Ogun River, Nigeria, Anslem Diayi, Michael Gbadebo
Applied Environmental Research
From depths of 0-5 cm, 5-10 cm and 10-15 cm, sediment samples were collected from three locations in the lower region of the Ogun River Basin, namely Mokoloki, Oke-Oko and Kara. The samples were obtained using Van Veen sediment grab after which they were stored in well labeled polythene bags for onward transportation to the laboratory. For pH and conductivity, samples were determined in-situ using standard methods by the American Public Health Association of 1992 while Organic Carbon was determined by the Wakley Method. The sediments were then air dried before analysis for particle size and metal concentration. Induced Couple …
Dinoflagellate Bloom Produced By Protoperidinium Divergens Response To Ecological Parameters And Anthropogenic Influences In The Junglighat Bay Of South Andaman Islands, Karthik Raji, Gadi Padmavati
Dinoflagellate Bloom Produced By Protoperidinium Divergens Response To Ecological Parameters And Anthropogenic Influences In The Junglighat Bay Of South Andaman Islands, Karthik Raji, Gadi Padmavati
Applied Environmental Research
The bloom-forming dinoflagellate, Protoperidinium divergenshas been linked with coastaleutrophication in tropical and subtropical regions. Moderate to intense harmful algal bloom of dinoflagellates Protoperidinium divergens (33,500 cells. mL-1) was observed during June 2012in Junglighat Bay of Port Blair in South Andaman. Bloom of Protoperidinium divergenswas observed for four days and declined afterwards due to heavy rainfall with low seawater temperature of 24 to 26°C. A total of 63 species and 33 genera were identified. In the present investigation, the following species of phytoplankton and zooplankton were found to be common; phytoplanktonsuch as Amphorasp., Bacteriastrumsp., Chaetocerossp., Coscinodiscussp., Rhizosoleniasp., Gonyaulaxsp., Protoperidinium sp., Pyrophacussp.and …
The Environment Education Model For Sustainable Mangrove Forest Management In The Eastern Part Of Thailand, Niwat Sarakhan
The Environment Education Model For Sustainable Mangrove Forest Management In The Eastern Part Of Thailand, Niwat Sarakhan
Applied Environmental Research
The objectives of this study were to identifyfactorsandenvironmental education models affecting community participation in sustainable mangrove forest managementas well as to develop and evaluate participationin an environmental education model for sustainable mangrove forest management in the eastern part of Thailand. This study employed mixed methods and was divided into 3 steps. First, a quantitative method was used to identify facts and factors affecting local participation in solving mangrove deforestation problems. A multiple-step sampling method was used to selectsamples of households in the province of Chanthaburi. The second step employed a qualitative method using an environmental education model design. The aim …
The Potential Of Social Capital In The Implementation Of Payment For Environmental Services In Tawang Retention Pond, Edi Santosa
The Potential Of Social Capital In The Implementation Of Payment For Environmental Services In Tawang Retention Pond, Edi Santosa
Applied Environmental Research
A high level of space and land utilization in the city of Semarang, Indonesia, has caused degradation of natural resources, both terrestrial and aquatic. In particular, the impact of flooding and high spring tides has worsened over time. Payment for Environmental Services (PES) is now being developed globally as a market-based instrument to attribute value to ecosystem, environmental and social services provided by natural resources, recognizing the value of social capital. Local networks and communities play important roles and have positive impacts on economic welfare and local development. The aim of this study is to analyse the potential of social …
A Simplified Rainfall-Streamflow Network Model On Multivariate Regression Analysis For Water Level Forecasting In Klong Luang (Kgt.19 Station) Sub-Watershed, Chon Buri Province, Thailand, Charoen Panant, Samakkee Boonyawat
A Simplified Rainfall-Streamflow Network Model On Multivariate Regression Analysis For Water Level Forecasting In Klong Luang (Kgt.19 Station) Sub-Watershed, Chon Buri Province, Thailand, Charoen Panant, Samakkee Boonyawat
Applied Environmental Research
A simplifiedrainfall-streamflownetwork model based on multivariate linear regression (MLR) analysishas been proposed. To determine significant coefficients of streamflow network, eleven MLR models were examined. The study's three objectives were 1) to develop a novel a mathematical model based on MLR analysis for forecasting optimal water levels;2) to determine the most significant coefficient of rainfall-streamflow network among in the area of interest in the vicinity of Klong Luang sub-watershedKGT.19 station; and3) to apply the optimal MLR model forwater level andflood forecasting mapsin Klong Luang Sub-watershed. We used Geographic Information System (GIS) and Remotely Sensed Data (RS) data recorded from Klong Luang …
Assessment Of Cadmium And Zinc Contamination In The Soils Around Pha Te Village, Mae Sot District, Tak Province, Thailand, Anongnat Sriprachote, Somchai Pengprecha, Paramee Pengprecha, Pornthiwa Kanyawongha, Kumiko Ochiai, Toru Matoh
Assessment Of Cadmium And Zinc Contamination In The Soils Around Pha Te Village, Mae Sot District, Tak Province, Thailand, Anongnat Sriprachote, Somchai Pengprecha, Paramee Pengprecha, Pornthiwa Kanyawongha, Kumiko Ochiai, Toru Matoh
Applied Environmental Research
In this study sequential extraction was used to fractionate cadmium (Cd) and zinc (Zn) from soils into six operationally defined groups; water soluble, buffer-exchangeable, carbonate, FeMn oxide, organic, and residual. Soil samples from agricultural areas surrounding Pha Te village, Mae Sot District, Tak Province, Thailand, were classified into four categories; forest soil, upland soil, upper-paddy soil and lower-paddy soil. Total soil Cd and Zn concentrations ranged from 0.63 to 30.4 mg kg-1and 14.4 to 594 mg kg-1, respectively. Cd and Zn concentrations were higher in the upper-and lower-paddy soil (5.93 to 30.4 mg kg-1for Cd and 286 to 594 mg …
Environmental Management Transfer And Environmental Performance By Japanese Firms In Thailand, Tatsuo Kimbara, Kazuma Murakami, Nirundon Tapachai
Environmental Management Transfer And Environmental Performance By Japanese Firms In Thailand, Tatsuo Kimbara, Kazuma Murakami, Nirundon Tapachai
Applied Environmental Research
This paper analyzes the determinants of environmental management transfer and environ-mental performance by Japanese firms in Thailand. For sustainable development, all actors need to contribute to the reduction of environmental loads. This requirement is part of a corporate social responsibility. Data obtained from a questionnaire survey onJapanese subsi-diaries in Thailandareused in the analysis. Government regulation, environmental strategy, organization and environmental performance are the key factors in the analytical framework. This paper uses ordinary least square (OLS) method for estimation. The results of the analy-sis indicate that the environmental management system and green procurement by parent firms are significantly related to …
Perchloroetylene And Dibutyltin Dichloride Removal From Packed Column By Surfactant Solution, Seelawut Damrongsiri, Chantra Tongcumpou, David A. Sabatini
Perchloroetylene And Dibutyltin Dichloride Removal From Packed Column By Surfactant Solution, Seelawut Damrongsiri, Chantra Tongcumpou, David A. Sabatini
Applied Environmental Research
Surfactant enhanced remediation is viewed as a potential method for removing organometallic compounds from contaminated aquifers. Dibutyltin dichloride (DBT), as a representative organometallic compound, was applied in sand packed columns to observe its solubilization behavior compared to that of perchloroetylene (PCE), a normal organic solvent. Ottawa sand was used as the porous media. A mixture of DBT and PCE was applied as the contaminant. The tracer study exhibited the plug flow condition with a retention time of 79.9 min. The surfactant solution was a mixture of 3.6 wt% SDHS and 0.4 wt% C16DPDS with various concentrations of CaCl2.The column experiments …
Retracted: Comparing Throughfall And Litterfall Nutrient Fluxes In A Rubber (Hevea Brasiliensis Willd. Muell-Arg) Plantation Agro-Ecosystem At Ikenne, South-West Nigeria, Oludare H. Adedeji, Adeniyi S. Gbadegesin
Retracted: Comparing Throughfall And Litterfall Nutrient Fluxes In A Rubber (Hevea Brasiliensis Willd. Muell-Arg) Plantation Agro-Ecosystem At Ikenne, South-West Nigeria, Oludare H. Adedeji, Adeniyi S. Gbadegesin
Applied Environmental Research
This study compares nutrient fluxes (throughfall and litterfall) in a rubber (Hevea brasiliensisWilld. Muell-Arg) plantation agro-ecosystem at Ikenne, SW Nigeria. Throughfallsamples were collected bi-weekly under the rubber canopies (40-, 15-, and 5-year-old) using throughfall funnel collectors with 10 replicates. Litterfall was collected on a monthly basis in the three rubber stands using twenty-four 0.25 m2litter traps (eight replicates in each of the three rubber stands) positioned randomly to estimate total annual litter production (dry biomass)and its main fractions. Throughfall and litterfall samples were analyzed for total nitrogen, sodium, phosphorus, calcium, potassium and magnesium. The annual means of throughfall in the …
Production Of Charcoal Briquettes From Palmyra Palm Waste In Kirimat District, Sukhothai Province, Thailand, Chanphen Chumsang, Pitak Upan
Production Of Charcoal Briquettes From Palmyra Palm Waste In Kirimat District, Sukhothai Province, Thailand, Chanphen Chumsang, Pitak Upan
Applied Environmental Research
Palmyra palm is a significant economic crop in Kirimat District, Sukhothai Province, and generates large quantities of husks, stalks and shells as by-products and wastes, which impacts on the local environment. This study investigated (1) production of compressed charcoal briquettes from Palmyra palm husks, fruit calyx and shells, whose physical properties and thermal performance were tested and analyzed according to Thai Community Product Standard (tcps 238/2004); (2) the economic return of the production process. The results showed that 40%of shells of a mature palm fruit and 90% of the husk and fruit calyx of young palm fruit are left over. …
The Challenge Of Promoting Greater Use Of Economic Instruments In Thailand: Lessons Learned From The Draft Act On Economic Instruments For Environmental Management, Sujitra Vassanadumrongdee, Panate Manomaivibool
The Challenge Of Promoting Greater Use Of Economic Instruments In Thailand: Lessons Learned From The Draft Act On Economic Instruments For Environmental Management, Sujitra Vassanadumrongdee, Panate Manomaivibool
Applied Environmental Research
Current policies and plans geared toward green growth/green economy emphasize the greater use of economic instruments. This paper reviews the past and current application of economic instruments (EIs) in environmental management in Thailand. Insights gained from documentary research indicate that EIs such as product taxes through collection of excise taxes have been relatively effective, whilst user charges for solid waste and waste water treatment have been found to be unsuccessful in Thailand. Lessons learned from the draft Act on Economic Instruments for Environmental Management indicate several institutional constraints towards the extensive application of EIs. This paper provides some suggestions to …
Development Of Gis Database For Insecticide Usage And Toxicity Among Thai Farmers In Ubon Ratchathani Province, Thailand, Anun Chaikoolvatana, Wacharapong Saengnill, Jaruwan Wongbutdee, Nawaporn Saisingh
Development Of Gis Database For Insecticide Usage And Toxicity Among Thai Farmers In Ubon Ratchathani Province, Thailand, Anun Chaikoolvatana, Wacharapong Saengnill, Jaruwan Wongbutdee, Nawaporn Saisingh
Applied Environmental Research
Widespread use of pesticides in Thai agriculture has led to serious adverse health impacts on users. This study developed a GIS database using the QGIS tool to investigate insecticide usage and toxicity tofarmers in Ubon RatchathaniProvince in northeastern Thailand. Primary data collection involved recording exact locations of residential houses using geographic positioning system (GPS). Secondary dataincluding transport routes, natural and environmental resources, and records of rainfall and ground temperatureswere also collected. The data were integrated asGIS mapping data. Eighteen farmers participated in the study and submitted themselves tomeasurements of cholinesterase (ChE) levels and 2 blood sample collections for comparison with …
Effect Of Edta And Dtpa On Cadmium Removal From Contaminated Soil With Water Hyacinth, Aekkacha Tananonchai, Pantawat Sampanpanish
Effect Of Edta And Dtpa On Cadmium Removal From Contaminated Soil With Water Hyacinth, Aekkacha Tananonchai, Pantawat Sampanpanish
Applied Environmental Research
The effects of ethylenediaminetetraacetic acid (EDTA) and diethylene triaminepentaacetic acid (DTPA) on cadmium (Cd) uptake by water hyacinth (Eichhornia crassipes) in Cd-contaminated soilwas studied. Experimental samples were separated into 4 treatment groups: 1) Untreated control, 2) EDTA addition, 3) DTPA addition, and 4) mixture of EDTA and DTPA (1:1) addition. The plants were harvested at 20, 40, 60, 80 and 100 days. Cd levels were measured in soil samples, water samples and two parts of the plant: shoot (stem and leaves) and root. The results showed that Cd accumulation in plants with added EDTA and DTPA were higher than the …
Determination Towards Decision Of Public Response In Flood Situation: Case Study In Urban Flood Prone Area In Central Region In Thailand, I-Soon Raungratanaamporn
Determination Towards Decision Of Public Response In Flood Situation: Case Study In Urban Flood Prone Area In Central Region In Thailand, I-Soon Raungratanaamporn
Applied Environmental Research
Public involvement has become a crucial part in increasing the efficiency of disaster management activities nowadays. In particular, collaboration between civil society and municipalities emerge in disaster situations because uncertainties in personal perception compel them to do so more than their own willingness to involved in disaster management activity. Since this appears to have occurred as a response to the 2011 flood situation in Thailand, the question is how a successful was this collaboration? The aim of this research is to identify factors influencing people's involvement in disaster management activity. The two study objectivesare as follows: (1) to elucidate the …
Effects Of Organic Fertilizer On Cd Bioavailability And Cd Accumulation In Rice Grown In Contaminated Paddy Soil, Mongkolchai Assawadithalerd, Meechai Siangliw, Chantra Tongcumpou
Effects Of Organic Fertilizer On Cd Bioavailability And Cd Accumulation In Rice Grown In Contaminated Paddy Soil, Mongkolchai Assawadithalerd, Meechai Siangliw, Chantra Tongcumpou
Applied Environmental Research
The effects of organic fertilizer on Cd phytoavailability and distribution in rice plants(Oryza sativaL.) were examined in pot and field experiments. The results of the pot experiment show that the addition of organic fertilizer increased the oxidizable Cd fraction(F3) and decreased the soluble and exchangeable Cd fraction (F1). There was also an increase in the dry matter yield when more organic fertilizer was applied. The Cd concentrations in the rice plant parts were observed in the following order: root > stem > grain. The accumulation index from the field experiment indicates that organic fertilizer application is likely to reducethe uptake of both …
Preface To The Special Issue Of Green Mining "Mineral Resources, Mining And Environmental Management In Asean", David A.C. Manning
Preface To The Special Issue Of Green Mining "Mineral Resources, Mining And Environmental Management In Asean", David A.C. Manning
Applied Environmental Research
This issue of Applied Environmental Research includes seven of the papers that were presented at a Regional Workshop on "Mineral Resources, Mining and Environmental Management in ASEAN", held in Bangkok from 6-8th June, 2013. The theme of the meeting concerned the approach to sustainable mining adopted by the different ASEAN nations that were able to attend, namely Thailand, Laos, Myanmar, Vietnam, and Indonesia, with additional papers from the UK and Germany. An important aspect of the meeting was to compare current practice in individual countries, and this is reflected in the content of the papers published here. Manning's paper on …
Resolving The Conflict Between Mining And Sustainability, David A.C. Manning
Resolving The Conflict Between Mining And Sustainability, David A.C. Manning
Applied Environmental Research
Mining is essential for human health and prosperity, and is increasing as the global populationgrows. The need for minerals appears to conflict with what is commonly understood as 'sustainability',as geological resources are non-renewable on a human timescale. However, the Brundtland definition of sustainability includes the concept of 'needs', implying that there has to be a balanced approach thatconsiders poverty alleviation. It identifies the three pillars of sustainability: economic, social and environmental.In the UK, mining has a legacy extending back over 6000 years. The approach taken to sustainability will be illustrated by 3 examples from northern England. In the 18thand 19thcenturies, …
Danger And Avoidance Of Damage Related To Tailings Dams And Tailings Ponds, Wilhelm G. Coldewey
Danger And Avoidance Of Damage Related To Tailings Dams And Tailings Ponds, Wilhelm G. Coldewey
Applied Environmental Research
Tailings dams can present high environmental and human health risks. For this reason, emergency planning for all installations of tailings storage facilities is essential. Recom-mendationsfor measurements concerning the safety of tailings dams are given.
Artisanal-Small Scale Mining In Myanmar, Aung Kyin
Artisanal-Small Scale Mining In Myanmar, Aung Kyin
Applied Environmental Research
In many parts of the world, artisanal or small-scale mining activities are at least as important as large-scale mining activities. The numbers of people employed are actually considerably greater than in large companies. In 2002, an estimated 13 million people a large percentage of those are women and children are artisanal and small scale miners operating mainly in developing countries. Although the numbers of small-scale miners and their dependents are estimated at up to 80-100 million people, governments are frequently reluctant to give legal recognition to artisanal miners [1].This paper discusses approaches to developthe Artisanal - Small Scale Mining (ASM) …
Sustainable Mining In Myanmar, Kyi Htun
Sustainable Mining In Myanmar, Kyi Htun
Applied Environmental Research
Myanmar is endowed with abundant natural and mineral resources. However, environmentaldegradation and social impacts have increased in recent years due to foreign investment in the mining sector and the application of modern technology in mining and processing methods to increase productivity. The growing trend towards new mining methods, particularly the shift from underground to open-cut method to mine and process low-grade ores contribute to generation of large volumes of waste rock and tailings, presenting a major disposal challenge. Wastes containing sulfides will further degrade the environment. Absence of an efficient legal framework for Artisanal and Small Scale Mining (ASM) for …
Mineral Resources Potential Of Vietnam And Current State Of Mining Activity, Nguyen Ngoc Khoi
Mineral Resources Potential Of Vietnam And Current State Of Mining Activity, Nguyen Ngoc Khoi
Applied Environmental Research
Vietnam, with an area of 331,210 km2, occupies the eastern side of the Indochina peninsula. It forms a narrow (locally only 40-70 km)band of land, extending over 1,500 km along the East Sea (South China Sea). Vietnam is constituted mainly by the folded belts surrounding two shields, cratonised in the Upper Proterozoic: the Yangtze craton and the Indochina shield, located in the Mekongbasin and occupying most of Cambodia and the contiguous parts of Laos and Vietnam. The folding occurred during the lateHercynian (early Triassic) orogenic movements, active mainly in the central and southern Vietnam and the Indosinian(late Triassic, anteNorian) orogeny. …
Environmental Management And Monitoring Of Mining Operation In Lao Pdr, Phengkhamla Phonvisai, Jiragorn Gajaseni
Environmental Management And Monitoring Of Mining Operation In Lao Pdr, Phengkhamla Phonvisai, Jiragorn Gajaseni
Applied Environmental Research
Overall, mining projects make a significant contribution to gross of domestic product (GDP) in Lao People's Democratic Republic (Lao PDR). Benefits include increased export revenues, provision of royalty and tax income to the government, technology transfer, worker training and the creation of a skilled workforce. This can also lead to improved social, physical, legal and financial infrastructure due to development around the mining areas such as roads, electricity and water distribution. Managed properly, economic benefits from mining projects can benefit future generations,even after operations have ceased. For Lao PDR, rapid expansion of the mining sector is seen as vital to …
Sustainable Mining In Thailand: Paradigm Shift In Environmental Management, Saneh Niyomthai, Annuwat Wattanawan
Sustainable Mining In Thailand: Paradigm Shift In Environmental Management, Saneh Niyomthai, Annuwat Wattanawan
Applied Environmental Research
Thailand'smining industry has always been considered as an industrial activity generating significant environmental burdens. This is because environmental management in the sectorwas given lower prioritycompared with economic benefits. The resulting adverse environmental effects in areas surrounding some mining areas required government interventions.Accordingly, the sustainable development of mineral resources requires a delicate balance of economic, environmental and societal considerations. To respond to this challenge, Thailand needs a paradigm shift in environmental management towards sustainablemining, in order to maximize benefits from exploitation of the mineral resources,whilst ensuring co-existence and mutual benefits of mining activities and their surrounding communities.This article seeks to provide …
Locating "Climate Justice" Within A National Context, Rebeca Leonard, Jacques-Chai Chomthongdi
Locating "Climate Justice" Within A National Context, Rebeca Leonard, Jacques-Chai Chomthongdi
Applied Environmental Research
Many explorations of climate justice have focused on the international sphere, centring attention on the historical responsibilities of industrialised nations for the reductionof greenhouse gas (GHG) emissions and the financing of climate change policies,the imbalance in geopolitical power that has influenced and stalled decisions at the United Nations Framework Convention on Climate Change (UNFCCC), and the structural changes needed as the world re-thinks development. This article presents a discussion of articulations of climate justice in a national context, exploring the case of Thailand, a middle-income country with a fast growing economy and a high trajectory of increasing emissions, but not …
Removal Of Nitrate By Bimetallic Copper-Nanoscale Zero-Valent Iron (Cu-Nzvi): Using 2k Full Factorial Design, Nalinee Krasae, Kitirote Wantala, Puek Tantriratna, Nurak Grisdanurak
Removal Of Nitrate By Bimetallic Copper-Nanoscale Zero-Valent Iron (Cu-Nzvi): Using 2k Full Factorial Design, Nalinee Krasae, Kitirote Wantala, Puek Tantriratna, Nurak Grisdanurak
Applied Environmental Research
Enhanced nitrate reduction of nanoscale zero valent iron (nZVI) by Cu prepared by impregnation method was studied in this work. Using a full factorial design, the performance of nZVI with and without Cu on surface in acidic and neutral conditions was investigated. Static batch reactor was selected in this study to investigate the effects of the independent variables such as catalysts (nZVI with and without Cu), initial pH of solutions (3, 7), and reaction times (10, 30 min). The results found that nitrate removal over Cu-nZVI was greater than that of nZVI by about 37% and 36% at pH 3 …
Exposure To Btex And Assessment Of The Potential Risk Among Pregnant Residents Living In The Vicinity Of A Petro-Chemical Industrial Estate, Santi Keadthongthawee, Nipa Maharachpong, Sirirat Chanvaivit, Nalinee Sripaung, Nantaporn Phatrabuddha
Exposure To Btex And Assessment Of The Potential Risk Among Pregnant Residents Living In The Vicinity Of A Petro-Chemical Industrial Estate, Santi Keadthongthawee, Nipa Maharachpong, Sirirat Chanvaivit, Nalinee Sripaung, Nantaporn Phatrabuddha
Applied Environmental Research
This research was conducted to estimate exposure and risk of exposure to BTEX (benzene, toluene, ethylbenzene and xylene)by a cross-sectional studying among pregnant women who lived in the vicinity of a petro-chemical industrial estatearea. Personal exposure was monitored by environmental and biological sampling.Other relevant data were gathered by a structured questionnaire for analysis. The relationship between BTEX exposure and potential risk factors was determined by multiple linear regression. Average BTEX exposure levels were 18.89, 29.40, 10.26, and 17.85µg m-3, respectively, which were significantlyhigher than the control group. Urinary metabolite levels of muconic acid(t,t-MA), hippuric acid (HA),mandelic acid (MA), andmethyl-hippuric acid …
Silicate As The Probable Causative Agent For The Periodic Blooms In The Coastal Waters Of South Andaman Sea, Karthik Raji, Arun Kumar Muthuraj, Gadi Padmavati
Silicate As The Probable Causative Agent For The Periodic Blooms In The Coastal Waters Of South Andaman Sea, Karthik Raji, Arun Kumar Muthuraj, Gadi Padmavati
Applied Environmental Research
Periodic algal blooms of three diatom species such as Coscinodiscus centralis, Rhizosolenia alata andRhizosolenia imbricata were observedduringSeptember 2011, December 2011 and March 2012 in the coastal waters of South Andaman Sea at Junglighat bay area (11° 39 N and 92° 43 E). The blooms were intense, with Coscinodiscus at aconcentration of 89,000 cells mL-1(contributing 85 to 98% to the total phytoplanktonpopulation), Rhizosolenia alataat a concentration of 13,000 cellsmL-1(86-93%) and Rhizosolenia imbricata at aconcentration of 19,000 cells. mL-1(91-99%). Nutrients, most importantly nitrate and silicate have emerged as the key factors controlling phytoplankton growth in this area
Environmental And Economic Of Flooring Building Materials, Nachawit Tikul
Environmental And Economic Of Flooring Building Materials, Nachawit Tikul
Applied Environmental Research
Green building design requires use of building materials that minimize environmental impact, necessitating selection of building materials by their environmental profile as well as economic cost-benefit considerations. The objective of this research is to determine the environmental impacts per square meter of three flooring materials; ceramic tiles, marble tiles, andparquet produced in Thailand. Life cycle cost (LCC) of the three materials are determined and compared. The study finds that ceramic tiles cause the greatest environmental impact, especially during the material extraction phase. When calculating all costsincurred throughout the life-cycle, the cost of untreated solid wood parquet is highest.
Utilization Of Cellular Glass Insulation Waste In Construction Materials, Thitikorn Buasomboon, Orathai Chavalparit
Utilization Of Cellular Glass Insulation Waste In Construction Materials, Thitikorn Buasomboon, Orathai Chavalparit
Applied Environmental Research
This research investigated the feasibility of using cellular glass insulation waste as fine aggregate in concrete paving block production. The effect of mixing proportions of cellular glass insulation waste at 0-40% by volume was studied. Results show that the amount of cellular glass waste can be used as a substitute for fine aggregate or sand up to 20%. Concrete specimens tested for compressive strength were found to be within an acceptable range of the interlocking concrete blockpavingstandard set byThailand Industrial Standards Institute. The compressive strength at 28 d was 41.50 MPa, with density ranging from 2.18 to 2.20 g cm-3. …