1. Introduction 1.1 Background of Study Water is the most significant requirement for all living creatures on this planet so it should be taken care about the importance of it. Water resources are of critical importance to both natural ecosystem and human development, and it is essential for agriculture, industry and human existence. The healthy aquatic ecosystem is depended on the physical, chemical and biological characteristics (Venkatesharaju et al 2010). Kurdistan is a region where is
compost can raise it. If the soil is too alkaline (pH greater than 7.5), then adding compost can lower it (Panter, 2009). According to an experimental study conducted by Claudio K. Morikawa and Masahiko Saigusa at the National Agriculture and Food Research Organization in Ano Tsu Mie, Japan, coffee grounds added to compost adjusted the pH level to mildly acidic (Sandy 2008). In comparison, a study conducted at the Department of Soil Water Conservation and Organic Waste Management in Espinardo, Murcia
engines, heating and cooling systems, kitchen utensils, garden furniture, and heavy machinery. Aluminum is also made into a large variety of compounds with many industrial and practical uses. Aluminum ammonium sulfate is used as a mordant, in water purification and sewage treatment systems, in paper production and the tanning of leather, and as a food
CHAPTER ONE INTRODUCTION 1.1 Background of the study Dengue is an arbovirus disease complex which includes dengue fever (DF) and dengue hemorrhagic fever (DHF) and its subsequent dengue shock syndrome (DSS). It is caused by four serotypes of dengue virus. A dengue virus infection may be asymptomatic or it may lead to undifferentiated viral fever syndrome, dengue fever, fever hemorrhagic fever or dengue shock syndrome. (World Health Organization 2003) The disease is often, though not exclusively