Environmental aspects and challenges of oilseed produced biodiesel in Southeast Asia

Research on alternative fuel for the vehemently growing number of automotivesis intensified due to environmental reasons rather than turmoil in energy price and supply. From the policy and steps to emphasis the use of biofuel by governments all around the world, this can be comprehended that biofuel have placed itself as a number one substitute for fossil fuels. These phenomena made Southeast Asia a prominent exporter of biodiesel. But thrust in biodiesel production from oilseeds of palm and Jatropha curcas in Malaysia, Indonesia and Thailand is seriously threatening environmental harmony. This paper focuses on this critical issue of biodiesels environmental impacts, policy, standardization of this region as well as on the emission of biodiesel in automotive uses. To draw a bottom line on feasibilities of different feedstock of biodiesel, a critical analysis on oilseed yield rate, land use, engine emissions and oxidation stability is reviewed. Palm oil based biodiesel is clearly ahead in all these aspects of feasibility, except in the case of NOx where it lags from conventional petro diesel.

Effect of depithing on the safety and environmental aspects of bagasse stockpiling

Large scale sugarcane bagasse storage in uncovered stockpiles has the potential to result in adverse impacts on the environment and surrounding communities through hazards associated with nuisance dust, groundwater seepage, spontaneous combustion and generation of contaminated leachates. Managing these hazards will assist in improved health and safety outcomes for factory staff and reduced potential environmental impacts on surrounding communities. Removal of the smaller fibres (pith) from bagasse prior to stockpiling reduced the dust number of bagasse by 50% and modelling suggests peak ground level PM10 dust emissions would reduce by 70%. Depithed bagasse has much lower water holding capacity (~43%) than whole bagasse. This experimental and modelling study investigated the physical properties of depithed and whole bagasse. Dust dispersion modelling was undertaken to determine the likely effects associated with storage of whole and depithed sugarcane bagasse.

Environmental Aspects of Underground Construction and Exploration of Underground Structure – State of the Art

An underground work (such as a tunnel or a cavern) has many, well known, environmental qualities such as: no physical barriers crossing the land, less maintenance costs than an analogous surface structure, less expenses for heating and conditioning; a localized emission of noise, gas, dust during operation and, finally, a better protection against seismic actions.
It cannot be forgotten, anyway, that some negative environmental features are present such as, for example, : perturbation, pollution and drainage of the groundwater; settlements; disposal of waste rock.
In the paper the above mentioned concepts are discussed and analysed to give a global overview of all this aspects.

Ethics, tourists and the environmental practices of the North American cruise ship industry: a comparison study of the ethical standards of Alaskan and Caribbean cruise ship tourists

Please consult the paper edition of this thesis to read. It is available on the 5th Floor of the Library at Call Number: Z 9999 R43 S54 2005

Symposium proceedings : Environmental Aspects of Fuel Conversion Technology, II, December 1975, Hollywood, Florida /

Mode of access: Internet.

Environmental aspects of the North American Free Trade Agreement : hearing before the Committee on Environment and Public Works, United States Senate, One Hundred Third Congress, first session, March 16, 1993.

Shipping list no.: 93-0331-P.

Environmental aspects of water spreading for ground-water recharge /

Bibliography: p. 19-21.

Department of Energy's facilities for defense materials production : hearing before the Subcommittee on Energy Research and Development of the Committee on Energy and Natural Resources, United States Senate, One Hundredth Congress, first session, on the public health and safety and environmental aspects of operation ... July 17, 1987.

Pt. 2 has subtitle: Hearings before the Committee on Energy and Natural Resources, United States Senate, One Hundredth Congress, first session, on the status of the Department of Energy's effects to address issues concerning the defense materials production reactors ... October 27 and 29, 1987.

Tourism environmental attitudes in Berlengas Biosphere Reserve, Portugal

O potencial conflito entre o paradigma de conservação da natureza e o desenvolvimento de atividades de turismo em áreas protegidas exige uma gestão rigorosa. Em alguns casos, o controlo da visitação é uma estratégia para a preservação dos recursos naturais assim como outras ferramentas de gestão tais como a capacidade de carga turística e/ou zonamento, com a definição de áreas de acesso restrito a visitas. A fim de promover a harmonização entre essas duas forças opostas (preservação vs. visitação) algumas áreas protegidas têm mudado o turismo de natureza para o ecoturismo. Isto implica que as atividades turísticas deverão ser focadas numa viagem responsável a áreas naturais, e, ao mesmo tempo, na promoção da conservação do meio ambiente, na interpretação e na educação. No nosso estudo analisamos o potencial do Ecoturismo na Reserva Natural das Berlengas, uma área protegida em Portugal. Foram analisados o perfil, as motivações e o comportamento ambiental dos turistas que visitam as Berlengas. Um questionário bilingue foi elaborado e os dados foram recolhidos a partir de 304 turistas que visitaram as Berlengas, durante os meses de julho e agosto de 2014, o s quais concordaram em colaborar neste estudo. A análise dos nossos resultados permitiu-nos inferir que, de facto, o turista visita a ilha da Berlenga devido ao ambiente natural e à vida selvagem, a visita também está relacionada com as atividades de natureza, tais como, visitar as cavernas de barco, observação da vida selvagem, caminhadas e praia. No entanto, pelo facto dos turistas estarem motivados a visitarem a ilha para se envolverem na natureza não significa que eles tenham consciência pró-ambiental. Encontramos 53,2%/ medio-ecológicos e apenas 37,9% dos turistas pró-ecológico; 8,9% são mesmo anti-ecológicos. Os nossos resultados sugerem que a natureza e a vida selvagem são motivações que não parecem ser suficientes para as pessoas apoiarem verdadeiramente a conservação da natureza e desenvolver comportamentos pró-ambientais. Mas, também verificámos que os turistas com um maior nível de instrução têm uma maior consciência ecológica. Assim, os turistas com maior nível de instrução tendem a ter menos impacto sobre o destino turístico. De acordo com nossos resultados, são apresentadas várias recomendações para a implementação do ecoturismo nas Berlengas.