On March 11, 2011, the Great East Japan Earthquake triggered an extremely severe nuclear accident at Fukushima Daiichi Nuclear Power Plant, owned and operated by the Tokyo Electric Power Company (TEPCO). This accident was ultimately declared as Level 7 ("Severe Accident") by International Nuclear Event Scale (INES). Figure 1 : Fukushima Daiichii Nuclear Power Plant The huge earthquake and tsunami that hit Japan's Fukushima Daiichi Nuclear Power Plant knocked out backup power systems...
When one speaks of the Great Barrier Reef, they tell of the most famous and largest coral reef in the world. This dazzling world of plant and animal life is hard to comprehend and is marvelous to see. The broad and shallow continental shelf of northeastern Australia provides an ideal pedestal for growth. This reef is a collection of 280 barrier reefs, 300 coral cays and rock islands stretching for 1,250 miles along the coast of Queensland, Australia and 160 miles offshore. It covers 135,000...
A flash flood is a swift flooding of a geomorphic low-lying. Flash floods are caused by heavy rainfalls that are associated with tropical storms, hurricanes and storm. A flash flood can also result from collapse of an ice dam, or debris dam. A sudden heavy and prolonged downpour may also lead to a flashflood. Sometimes human structures can collapse leading to flash floods, such structures may be like man made dams. For example Johnstown floods that took place in 1989. A flashflood is...
An enormous amount of development in industrial sectors all over world typically results in a growing number of environmental problems in proportion with the development. An Environmental Management System (EMS) is a framework, which is designed to help organizations in the management, improvement and control of environmental performance. EMS is part of management system of an organisation, where a clearly set out structure of an organisation, responsibilities of staff, procedures, planning...
Low Impact Development is a methodical set of actions for land development which works with the environment to handle storm water by using various design techniques such as infiltration, filtering, storing, evaporation of runoff as close to its source as possible. The basic objectives of Low Impact Development runoff control are decreasing inquietation, protecting the natural landscape features, lessening effective impervious cover, enhancing hydrologic disconnects and drainage flow paths,...
Forests play a vital role in the development and in ensuring environmental sustainability of the country. Besides supplying forest products for economic development, forests also contribute significantly to reducing flood and storm damages by maintaining and moderating water flows, supplying water for production and livelihood activities, mitigating erosions, landslides, and producing hydroelectricity. Forests also enhance climate control, conserve biodiversity and genetic resources, and...
Agitation systems are integral to all fermenters. The process of Fermentation in biochemical industry requires an additional equipment called Agitator which consists of shaft, impellers with 4 to 6 blades and motor to drive. Shafts should have double seals to prevent leakage of the contents. The main function of the agitator is mixing of the contents, aeration, and removal of carbon dioxide produced during fermentation process by mixing action. The purpose of agitation is generally to ensure...
Due to pollution from agriculture and intensive land management, water supply industry is facing challenges of maintaining secure water quality. In recent years the level of treatment required to comply with drinking water standard is continuously increasing because of the progressively rising level of pesticides and nitrates, cryptosporidium and colour, turbidity and suspended solid at water sources, especially in lowland surface sources. However, the construction and operation of treatment...
The Earth's temperature is rising in many years and this rising leads to the changing of global climate. Storms, tornadoes, typhoons, and hurricanes occur more frequently each year. The issue of global warming is very complicated. Some scientists believe that mankind is the main reason for global climate changing while others claim that the changing of global climate is due to nature. There are facts that along with the industrialization, global climate has changed quickly. Human beings are...
Sustainable materials, technologies and energies which are suitable for domestic buildings and can reduce emissions footprint in existing and new structures significantly based on the principles of "The Code of Sustainable homes". Intro This Discipline research analysis will investigate the sustainable materials, technologies and energies which are available nowadays in construction. It will be focused only in domestic buildings and the needs of this category. It will be also defined...