ผลงานตีพิมพ์ทั้งหมด

Environmental Mitigation Possibility via Organic Farming: Lettuce Case Study

C. Wongwai, Thumrongrut Mungcharoen, Rungnapa Tongpool

International Journal of Environmental Science and Development · 2014

The contamination of toxic in agricultural food and environment are the concerned issue in Thailand because it could damage the agricultural land and health of people in the long time and it also take many time to recover. This study were studied the environmental impact of organic lettuce (Grand rapids) compared with the conventional lettuce. The study consider 8 impact categories: 1) Climate change, 2) Human toxicity, 3) Terrestrial ecotoxicity, 4) Freshwater ecotoxicity, 5) Water depletion, 6) Fossil depletion, 7) Freshwater eutrophication and 8) Marine eutrophication. The scope considers the material input production, transportation and emission from the farm .The result of this study shown that organic lettuce were lower impact than conventional lettuce in all impact categories especially the three toxicity issue. Therefore, the organic lettuce could be the solution way to mitigation the environmental impact from the conventional lettuce in Thailand.

Biotemplated synthesis of highly stable calcium-based sorbents for CO2 capture via a precipitation method

Thongthai Witoon, Thumrongrut Mungcharoen, Jumras Limtrakul

Applied Energy · 2014

Water Footprint Assessment of Palm Oil Biodiesel Production in Southern part of Thailand

Shinatiphkorn Pongpinyopap, Worayuy Saibuatrong, Jitti Mungkalasiria, Ruthairat Wisansuwannakorn, Thumrongrut Mungcharoen, Thongchai Rohitatisha Srinophkun

Environment and Natural Resources Journal · 2014

The water footprint of palm oil biodiesel depends upon climate and production systems. The weighted average of the total water footprint is 5,714 m3/ton in a study area which has a mean annual rainfall of 1,905 mm per annum and where the average Fresh fruit bunches (FFB) yield is 3.02 tonnes per annum. The share of indirect water footprint to the total water footprint of biodiesel is 99% and that due to direct water footprint is 1% (Only blue water). The highest contributors to the indirect and direct water footprint are the water consumption of the oil palm crop and the water consumption in the production of palm oil biodiesel, respectively. From this study, Surat-Thani is the suitable area for using oil palm crop to produce biodiesel in water perspective.

Permselective properties of graphene oxide and reduced graphene oxide electrodes

Yanisa Sanguansak, Pattarachai Srimuk, Atiweena Krittayavathananon, Santamon Luanwuthi, Natee Chinvipas, Poramane Chiochan, Jakkrit Khuntilo, Panupong Klunbud, Thumrongrut Mungcharoen, Montree Sawangphruk

Carbon · 2013

Development of synthetic CaO sorbents via CTAB-assisted sol–gel method for CO2 capture at high temperature

Akarat Akgsornpeak, Thongthai Witoon, Thumrongrut Mungcharoen, Jumras Limtrakul

Chemical Engineering Journal · 2013

Life Cycle Energy and Environmental Analysis Study of a Model Biorefinery in Thailand

R. Chinnawornrungsee, Pomthong Malakul, Thumrongrut Mungcharoen

DOAJ (DOAJ: Directory of Open Access Journals) · 2013

There is commercial production of biofuels and biochemicals in Thailand. Yet there are no biorefineries at present. This study aims to evaluate the life cycle energy and environmental impacts associated with the production of biofuels and biopolymers for a model biorefinery in Thailand. Since there is currently no biorefinery in the country, secondary data sources from existing bioethanol and biopolymer plants were used for life cycle analysis (LCA). Sugarcane and cassava were chosen as feedstocks for the proposed biorefinery to produce bioethanol and polylactic acid (PLA). The system boundary was defined as cradle-to-gate with LCA methodology based on ISO 14040 series. Data were analyzed by using commercial LCA software, SimaPro 7.1, with Eco-Indicator 95 and CML 2 baseline 2000. The biorefinery system was modeled and its performance was evaluated for several factors such as fuel and biopolymer production, raw materials consumption, and total revenue generation for five scenarios. The results indicated that the biorefinery showed better performance in both global warming potential (GWP) and energy resources with increasing sugarcane usage. This was due to the use of bagasse and biogas as sources of fuel to generate electricity and steam by using a highly efficient electrical energy cogeneration process in the biorefinery. In contrast, increasing PLA production led to higher GWP and energy resource impacts due to high electricity and steam usage in the bioplastic production process. Finally, two Eco-efficiency parameters was developed in order to combine both environmental (GWP and energy resources) and economic (revenue) aspects by using average revenue gained and average impact associated. Among five scenarios studied, the results showed that S4 – high sugarcane usage and ethanol production – was the best scenario as it has higher eco-efficiency in both aspects.

Assessment the Environmental Impacts of Polylactic Acid/Starch and Polyethylene Terephthalate Boxes Using Life Cycle Assessment Methodology: Cradle to Waste Treatments

Unchalee Suwanmanee, Thanawadee Leejarkpai, Thumrongrut Mungcharoen

Journal of Biobased Materials and Bioenergy · 2013

Life cycle assessment of single use thermoform boxes made from polystyrene (PS), polylactic acid, (PLA), and PLA/starch: cradle to consumer gate

Unchalee Suwanmanee, Viganda Varabuntoonvit, Phasawat Chaiwutthinan, Monchai Tajan, Thumrongrut Mungcharoen, Thanawadee Leejarkpai

The International Journal of Life Cycle Assessment · 2012

Improvement of the environmental performance of broiler feeds: a study via life cycle assessment

Rungnapa Tongpool, Neungruothai Phanichavalit, Chantana Yuvaniyama, Thumrongrut Mungcharoen

Journal of Cleaner Production · 2012

Assessment of Greenhouse Gas (GHG) Emissions of Polylactic Acid (PLA)/Starch and Polyethylene Terephthalate (PET) Trays

Unchalee Suwanmanee, Thanawadee Leejarkpai, Thumrongrut Mungcharoen

Advanced materials research · 2012

This study aims to assess greenhouse gas (GHG) emissions of Poy(lactic acid) (PLA) with cassava starch blend (PLA/starch) and Poly(ethylene terephthalate) (PET) trays from cradle to grave. The various waste treatment scenarios were considered. The functional unit is specified as 10,000 units of 8 x 10 x 2.5 cm. of PLA/starch and PET trays which weigh 597.6 and 582.7.5 kilograms, respectively. The results from cradle to production gate were found that GHG emissions of PLA/starch has 51.38% lower than that of PET. This is because PET has higher weight of the trays. The resin production stage of PET tray has the highest of greenhouse GHG emissions. The results from cradle to grave show that the highest total GHG emissions are observed from PLA/starch or PET trays with 90% of landfill and 10% of incineration. The lowest GHG emissions from disposal PLA/starch and PET trays are from landfill with biogas recovery and incineration with heat recovery. This can be reduced GHG emissions by 3.11103 and 1.28103 kg CO2 equivalent.