Hydraulic fracturing ,a technology,which used to extract natural gas, and oil from a shale rock formation thousands of feet beneath the earth's surface. Through combined with horizontal drilling, natural gas companies can drill previously untapped oil reserves. Domestic gas and oil production over the last few years are in boom as a result of combination of these two techniques . Horizontal drilling enables one surface well to tap gas trapped over hundreds of acres. Once the conventional...
The above model is working under the NEPSI. The most important pillar of this system is the secured financing for the efficient collection and proper recycling through the ARF which are applicable on all new items and products of which consume electricity (Khetriwal, Kraeuchi & Schwaninger, 2005) The drawback of an ARF is that there is cross subsidisation of products among different categories, for e.g. it is the situation where PC buyers pay for the recycling of radios (Gottberg et al,...
Red tide is a phenomenon that affects the water by coloring it red and cause a death of a marine organisms because of increasing the CO2 in the water. So, in this paper we will discuss the problem of red tide and how much it affects the marines and human life. Also, we will look at some possible ways in how we can reduce the effects. Then, we will focus on the red tide phenomena when it appears in UAE coasts, and how the UAE government reacts on it. Introduction: There are many organisms which...
In Malaysia, green roofs are considered as a fairly new concept although the concept offers many benefits. Green roofs promotes amenity and aesthetic benefits, environmental benefits, and economic benefits. The principal aim of this research is to improve the quality of green roof systems in Malaysia by develop design guidelines for green roof systems. This research will identify the performance benefits of green roof, the current phenomenon of green roof as well as their obstacles to adopt...
The concept of zero waste was first conceived in the mid 1970's in a company named Zero Waste Systems Incorporation (ZWS), by a chemist Paul Palmer (PhD) in the city of Oakland, California. On discovering the enormous amount of reusable chemicals been discarded by the then developing electronics industry he was convinced that reworking and or reselling the chemicals was portrayed a potential money making venture hence the collection and recycling of these chemicals brought about the reality of...
Heavy metals, particularly mercury, cadmium and lead present in fish constitute a significant potential threat to human health because they are associated to many adverse effects on health. The aim of this study was to determine the cadmium, lead and mercury content in regularly consumed seafood by the Mauritians using the atomic absorption spectrometry (AAS) technique. Common canned fish products locally available as well as imported ones such as canned tuna, canned sardines and canned...
Water pollution is the presence of any substances in water which can be harmful for plants and animals that live in water or people who use it. In other word it is the change in the chemical or physical properties of the water and this change can lead to cause damage and health hazards to animals and plants that live inside it or organisms that use it. (1)Importance of the Nile River for EgyptThe Nile River is the primary water resource in Egypt, where it represents more than 95% of the total...
Introduction This chapter presents a general overview of arsenic in soils and the dangers associated with it. It covers the need for the remediation of arsenic contaminated soils; the technologies currently used for arsenic contaminated soils; the general use of amendments, what they are, the various types in use and the amendments for the remediation of arsenic contaminated soils and narrowed down on the use of iron oxyhydroxides for the immobilization of As in contaminated soils.Arsenic in...
The phrase global warming has become a well known topic of discussion and debate to scientists, politicians and also the public. It is defined as the increase in the average temperature of atmospheric layer of the earth. Global warming is happening due to human activities such as burning of coal, gas and oil which have affected our ecosystem. The consequences include changes in climate, human health and the environment (Hardy, 2003).  The evidences of global warming are not noticeable in the...
Increasingly people are moving to cities and it is estimated that by the year 2025 that 65% of the world's population with be urban dwellers (Pacione 2007). However, the demands of this growing urban population are impacting on our environment as resource consumption and waste production wreak havoc on our planet and our quality of life (Wackernagel and Rees 1996). The international consensus is that we need to act now toward sustainable development and this means finding a balance between...