Introduction 1.1 Introduction The demand of clean water has always been a major universal concern and this issue is becoming more urgent with the expectation of water deficiency to an alarming rate by the year 2025. Hence, there are needs a new technologies for desalination and wastewater treatments, to meet the requirement water demands with credible and affordable water sources. [Teoh and Chung, 2009] (1) Desalination is a process in which saline water is separated into two parts using different forms
Nanotechnology has a wider scope of applications; one of the important applications is the use of nanotechnology in environmental aspects. Cleaning up of the contaminated water from the different water bodies is of primary concern. • Nanotechnology is responsible for ensuring impure potable water by means of application of cost effective water treatment and purification systems. Nano filtration is one of the effective and efficient means of filtration which ensures the filtration of harmful inorganic impurities
Chapter - 1 Introduction Water is one of the most important abundant natural resource on earth. Although water is on two-third part of the earth and remaining one-third is land, yet the availability to access portable or freshwater for people is narrowing and consolidating day by day. Polluted or brackish water is responsible for most of the diseases in human. Now days, most of the country in world are facing a huge problem of water infrequency. This infrequency is because of pollution created by
Abstract— This paper surveys about the Water Waste and its harmful effects on nature. It talks about the water waste Management procedure undertaken in the UAE. Moreover, it gives an overview on Environment Protection, how it is done, its uses and causes. It also explains the purpose of Environmental Engineering. . I. INTRODUCTION Wastewater is any water whose quality has been badly affected by human activities. Wastewater usually originates from industrial, domestic, agricultural and commercial
Introduction Singapore’s constantly improving infrastructure, skilled workforce, good employee relations, natural connectivity, favourable tax regime, political stability and strong rule of law have all contributed to the country’s competitive advantage. These factors enabled the Singapore economy to grow and develop over the past decades and have contributed to Singapore being Asia’s most competitive economy (Medtech, 2013). Singapore is well developed in its infrastructure and being in a strategic
size (0.0005-0.002 nm). RO membranes are the tightest of all the membranes and allow only water to pass through it while rejecting almost everything. It can reject all dissolved and suspended solids and even the monovalent ions from the water hence producing water of very high purity. RO depends on ionic diffusion to effect the separation. Reverse osmosis is used in the desalination of sea water and brackish water and in industrial processes including cheese whey concentration,
Is nanotechnology dangers or useful? , what is a nanotechnology? Nanotechnology is in the recruitment of fixtures nanoparticles in equipment and instruments with nanoscale dimensions, it is important to know that the nanoscale is very, very small so you can not build it smaller things The concept of nanotechnology depends on the grounds that particles smaller than one hundred nanometers (a nanometer is a part of the thousand-millionths of a meter) give the material within the structure and behavior
time intervals, 2-3 mL of sample was taken from feed as well as strip chamber and then the dye concentration was measured spectrophotometrically at 554 nm. If the absorbance of sample exceeded 0.900 the samples were diluted with double distilled water. The experimental setup of SLM is given in Fig.
CHAPTER 1 INTRODUCTION 1.1 Background of the Study Generally, Palm oil mill effluent (POME) contains high chemical oxygen demand (COD) and biochemical oxygen demand (BOD) which can pollute the environment ecosystem if it is not treated properly. The characteristics of fresh POME are that it is highly viscous liquid, brownish in colour and discharged at a temperature of 80-90oC. Moreover, POME is extremely poisonous with a very low pH between 3.5 and 4.2, high chemical and biological oxygen demand
One of the most important battles during World War II (WWII) occurred six months after the Japanese attack on Pearl Harbor. At this point, the Japanese armies controlled Southeast Asia, the East Indies, and the Philippines. The war was fought on land, at sea, and in the air. The turning point came in June 1942 at the Battle of Midway. The U.S. annihilated hundreds of Japanese planes to gain control of the pacific. The four day battle was fought between aircraft based on huge aircraft carriers