Soydoa Vinitnantharat

Soydoa Vinitnantharat
King Mongkut's University of Technology Thonburi | KMUTT · Division of Environmental Technology

D. of Tech Sci.(Environmental Technology & Management)

About

45
Publications
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Introduction

Publications

Publications (45)
Article
Full-text available
The presence of excess nutrients in water resources can be harmful to human health and aquatic ecosystems. To develop an affordable water treatment method, the agricultural waste material coconut husk was converted into a low-cost adsorbent by thermal conversion to biochar, pelletized without (CH), and with chitosan (CHC), or eggshell powder (CHEG)...
Article
Full-text available
In 2014, Oxford Nanopore Technologies (ONT) introduced an affordable and portable sequencer called MinION. We reviewed emerging applications in water research and assessed progress made with this platform towards ubiquitous genetics. With >99% savings in upfront costs as compared to conventional platforms, the MinION put sequencing capacity into th...
Article
Full-text available
This study investigated the GHG emission from 3 processes of white leg shrimp production in an intensive shrimp farm; namely, pond preparation, culturing and harvesting at the density of 50,000-60,000 individuals/rai in March-May 2019. The activity data such as energy and materials use, waste and water discharge were collected and greenhouse gas em...
Article
Full-text available
This research explored the long-term relationships of climate parameters and coastal water quality nearby shrimp farms in two countries. In Thailand, two sampling points in canals located in Bangkok and Trang provinces were selected as the urban and tourism areas, respectively. In northern Vietnam, the canals located in Thai Binh and Quang Ninh pro...
Conference Paper
Full-text available
The presence of pollutants in aqueous solution, particularly from heavy metals is an important environmental and social problem. Iron (Fe), manganese (Mn) and arsenic (As) can be found in groundwater, particularly if it is near gold mine. Thus, it is necessary to find the adsorbent that can remove these heavy metals and investigate its sorption per...
Conference Paper
Full-text available
This study investigates the capability of cadmium (Cd) sorption on polyethylene (PE) microplastics and on bamboo biochar (BB) through adsorption isotherm studies. Cadmium was prepared at different concentrations (50-4000 μg/L). For batch sorption experiments, the PE or BB was separately added in the Cd solutions under controlled conditions at labor...
Article
Full-text available
In this work, we evaluated the valorisation of agricultural waste materials by transforming coconut husks and shells, corncobs and rice straw into biochar for water treatment in aquaculture. We compared the biochars' suitability for removal of organic micropollutants (acetaminophen, oxytetracycline, tetracycline, enrofloxacin, atrazine, diuron and...
Article
Full-text available
Mangrove biochar residue was used for nitrogen adsorption and retention in sediment, which is beneficial for plant germination. The present study investigated the effect of contact time (5-360 min), biochar dosage (0.2-2 g L −1), pH (5-6), and initial concentration (2-10 mg L −1) on NH4 +-N and NO3 −-N adsorption. Three different adsorption isother...
Article
The electrical resistivity tomography (ERT) survey is a common geophysical survey for characterising waste in final disposal sites. However, the ERT survey is costly in terms of labour, price, and time requirements. This research aims to investigate the feasibility of using an electromagnetic (EM) survey in the preliminary assessment of waste quali...
Article
Currently, there is no technique to characterise the waste composition that can be processed into refuse-derived fuel in the open dumpsite. This study’s objective is to investigate the feasibility of applying resistivity measurements to evaluate waste composition in the open dumpsite. Electrical resistivity surveys were performed in two open dumpsi...
Article
Full-text available
We assessed antimicrobial resistance (AMR) potential to seven major classes of antibiotics in Central Thailand’s coastal aquaculture region using high-throughput qPCR targeting 295 antibiotic resistance genes (ARGs) and mobile genetic elements (MGEs). In parallel, we used MinION next generation sequencing (NGS) of 16 S rRNA gene amplicons, qPCR of...
Article
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Anaerobic digestate and biochar are by-products of the biogasification and pyrolysis of agricultural wastes. This study tested the hypothesis that combined application of anaerobic pig/cattle manure digestate and coconut husk (CH) biochar can improve soil nutrient conditions, whilst minimizing atmospheric and groundwater pollution risks. Microcosms...
Article
Full-text available
Biochar has been recognized as a potential media for soil amendment regarding its high surface area and retention capacity to slowly release nutrients to soils. However, the recycling of biochar after domestic water treatment towards agricultural application is still not well known. Therefore, this research studied the role of nutrient-loaded bioch...
Article
Full-text available
Marine shrimp culture is important in agricultural sector which generates income for farmers. If marine shrimp culture is not proper management, it can cause environmental impacts on coastal ecosystem and water quality. Some areas use water spraying, washing and then flushing the pond bottom after shrimp harvesting and discharge water to receiving...
Article
Full-text available
Human activities in the upstream areas of Bangkok could affect water quality in the coastal areas where seabass was cultured. Most farmers use water from associates canals without treatment, thus it may be polluted with organic and toxic chemicals. This research aims to study the seasonal effect on water quality of seabass culture ponds and associa...
Article
Full-text available
The excessive use of nitrogen fertilizer leads to soil pollution and groundwater contamination by nitrate leaching. Thus, understanding nutrient retention properties of a soil is important for managing nitrate contamination. The aim of this research was to study the effect of plant residues and biochars on organic matter and nitrogen retention in s...
Article
Full-text available
Water is essential requisite for human being, aquatic organisms, and aquaculture production. In aquaculture sector especially for shrimp farming, water is common factor because it is water intensive enterprise and required daily water exchange. Physical, chemical, and biological characteristic can determine to ensure water quality for the species a...
Article
Full-text available
Peri-urban aquacultures produce nutritious food in proximity to markets, but poor surface water quality in rapidly expanding megacities threatens their success in emerging economies. Our study compared, for a wide range of parameters, water quality downstream of Bangkok with aquaculture regulations and standards. For parameters not meeting those re...
Conference Paper
Full-text available
This research studies properties of briquette made from lychee leaves, coconut leaves and wood ash by using cassava starch as the binding agent. Raw materials were derived from Amphawa-Chaipattananurak Conservation Project, Samut Songkhram province. Effect of wood ash on properties of briquette was studied by mixing lychee leaves and wood ash in th...
Article
Biodiesel is widely promoted to replace conventional diesel based on considerations of energy security, resource depletion, and global warming mitigation. The extent of greenhouse gas emissions may vary depending upon the type of land area converted for biodiesel crop cultivation. In addition, the economy and society are also affected both positive...
Article
Adsorption potential of surface modified granule (SM-G) to remove acid brown 75 (AB 75) from aqueous solution was investigated using fixed-bed column mode. To produce SMG, lignite fly ash was agglomerated into porous granules by an extruder at 800°C and surfacemodified with a cationic surfactant, Hexadecyltrimetylammonium Bromide (HDTMABr). The per...
Article
Full-text available
This research investigates the quality changes during composting of bagasse and pig manure amended with 30% of surfactant-coated charcoal (SC). Two treatments, 30% uncoated charcoal (UC) amendment and no charcoal (NC) amendment, were done as control. Charcoal was coated with 0.37 mM tetradecyltrimethylammonium bromide (TDMA), a cationic surfactant,...
Article
Background: Fly ash has been widely used as adsorbent in wastewater treatment field. However the development of granulated form of fly ash with more appropriate for real application has not been widespread and clarified adequately. The present study deals with the use of fly ash granules coated with a cationic surfactant, hexadecyltrimethylammonium...
Article
As production of biofuels from agricultural commodities is expanding, concerns about social and environmental implications are also rising. The production of biofuels may lead to both positive and negative socio-economic impacts. This paper analyzes the impacts of biodiesel demand on the price of oil palm and associated products using demand and su...
Article
Full-text available
Surface water samples were collected from rivers which fed into large urban areas within Vietnam, Indonesia, Cambodia, and Thailand and were processed to enumerate Escherichia coli. Selected isolates were further characterized using PCR to detect the presence of specific virulence genes. Analyzing the four countries together, the approximate mean c...
Article
Diesel is produced conventionally by distilling crude oil which also results in lower value heavy distillates. Recently, complex refineries have higher value-added diesel from these heavy distillates. However, this requires additional energy. Hence, it is interesting to evaluate what effect the economic value addition has on the use of non-renewabl...
Article
Full-text available
This study aims to use unmodified fly ash (Un-G) and surfactant modified granule (Mo-G) for adsorption of two anionic dyes; acid brown 75 (AB 75) and direct yellow 162 (DY 162) from aqueous solution. The granule was prepared by wet granulation of fly ash powder. The formation of fly ash pellet occurred between 18-20 % water content and heat more th...
Article
This paper reports the use of a pellet of adsorbent made from water treatment sludge (S) and acid activated water treatment sludge (SH) for removal of fluoride in the batch equilibration technique. The influence of pH, adsorbent dosage, temperature and effect of other ions were employed to find out the feasibility of acid activated adsorbent to rem...
Article
Laboratory scale experiments were conducted to evaluate the removal capacities of the major competitive components in a biological activated carbon (BAC) system. Adsorption, desorption, biodegradation, biosorption, and bioregeneration were considered as the major target reactions. Phenol and 2,4-dichlorophenol were used in a single and bisolute sys...
Article
The aim of this study is to investigate the decolorization in anaerobic/aerobic biological activated carbon (A/A BAC) system. The experiment was divided into 2 stages; stage I is batch test for preliminary study of dye removal equilibrium time. The preliminary experiment (stage I) provided the optimal data for experimental design of A/A BAC system...
Conference Paper
Full-text available
A study of the initial waste sludge dosage from noodle making wastewater treatment and the nutrient supplementation affecting to the Spirulina cultivation was employed. The waste sludge dosages of 2, 4, 6 and 8 g/L were extracted over 20 days to evaluate the amount of nitrogen and phosphorus released. Extracts from the waste sludge dosage of 2 g/L...
Conference Paper
Full-text available
This research aims to identify the adsorption capacity of the adsorption materials made from waste sludge for the removal of basic red 14 (BR14) and reactive red 141 (RR141). Water treatment sludge (WTS) and mixed sludge (MS) of WTS and dreg from paper industry were pelletized. Then, their surfaces were modified by chitosan or cationic surfactants,...
Article
Full-text available
This study aims to investigate the anaerobic degradation kinetics of reactive dye, C.I. Reactive Red 141 (Evercion Red H-E7B) by partially granulated anaerobic mixed culture using three carbon sources, namely modified starch (MS), polyvinyl alcohol (PVA) and acrylic size (AS) during batch incubation. There is a first-order kinetics reaction in the...
Article
Textile wastewater normally has a visible color although it has low concentration. This may affect the aquatic ecosystem. Two dyestuffs, Reactive Red 141 (RR141) and Basic Red14 (BR14) were used as compound models. RR 141 is an anionic dye which has a big molecule whereas BR 14 is a cationic dye and has a small molecule. The target organisms for to...
Article
This study presents the results of the sorption performances for geosmin removal by sorption onto granular activated carbons (GAC) manufactured from different raw materials of coconut shell and bituminous coal. The surface of GAC was modified by chitosan coating. The 90% deacetylated chitosan flakes were used for coating on GAC with the GAC: chitos...
Article
Effluent from textile industry is a major source of dye pollution. The low biodegradability of many dyes and textile chemicals are not always successful in the treatment, specifically in term of color removal. It is known that anaerobic-aerobic processes can achieve decolorization completely. Two stages anaerobic-aerobic are studied and revealed th...
Article
Textile wastewater generally consists of high organic substances and is strongly colored. Reactive dye has been used extensively in the textile industries. It is water soluble and difficult to remove by chemical coagulation. Removal of organic substances simultaneously with dye can be achieved by a biological process. This study aims to investigate...
Article
Lignite based granular activated carbon of 20x30 mesh size was used to investigate the extent of bioregeneration of phenol and 2,4-DCP in a batch system. The adsorption isotherm fits very well with the Freundlich isotherm and it is apparent that 2,4-DCP is more adsorbable than phenol. The degree of reversible adsorption for phenol and 2,4-DCP were...
Article
A predictive isotherm model was developed to evaluate the extent of bioregeneration of granular activated carbon loaded with phenol and 2,4-dichlorophenol (2,4-DCP). Two basic substrates (116 mg/L of phenol and 100 g/L 2,4-DCP) as single solute were prepared. The mixture of them was provided to bisolute system for assessing the competitive adsorpti...
Article
Treatment performance of COD in the presence of 2,4-dichlorophenol (2,4-DCP) was explored by using a biological activated carbon-sequencing batch reactor (BAC-SBR) system. Two COD levels of basic substrate were synthesized with a mixture of phenol and 2,4-dichlorophenol. Although effluent concentration was increased with reduction of sludge retenti...
Article
The role of mixed microorganisms on the bioregeneration of granular activated carbon (GAC) loaded with a mixture of phenol and 2,4-dichlorophenol was investigated. In a biological activated-carbon, sequencing batch reactor (BAC-SBR), bioregeneration efficiency for phenol was enhanced from 39 to 48% and for 2,4-dichlorophenol from 38 to 43% by incre...
Article
Full-text available
The studies were concerned in removal of organic matters together with phenol compounds from the synthetic waste water by using Granular Activated Carbon-Sequencing Batch Reactor System (GAC-SBR). The synthetic waste water used in this experiment contained glucose as COD about 3,400 mg/l and phenol about 1,000 mg/I. The maximal phenol and COD absor...
Article
Full-text available
The tanning industry in Thailand is one of the country's oldest industries. Wastewater generated from this industry usually contains a mixture of several toxic chemicals, such as chromium, sulfide and leather dyes. To date, very few techniques have been report to effectively treat mixed waste containing several toxic species. In this aspect, adsorp...

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Projects

Projects (8)
Project
Bamboo biochar was used to remove Fe, Mn and As from groundwater in the central and northeastern Thailand. The modified and unmodified bamboo biochars were investigated their chemical properties. The batch, column and pilot-scaled experiments were done using synthetic and real groundwater.