material and non-degradable solids as bottom sludge. * Allow partially treated effluent to pass out. CONCEPT: * BOD Removal Rates and Factors First the concept of Biological Oxidation Demand (BOD) should be introduced. Organic compounds in wastewater may be used as food for bacteria‚ which can biochemically digest or oxidize the organic compounds to produce energy for growth. This oxidation of organic material‚ if done under aerobic
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------------------------------------------------- Treatment of industrial wastewater The various types of contamination of wastewater require a variety of strategies to remove the contamination Brine treatment Brine treatment involves removing dissolved salt ions from the waste stream. Although similarities to seawater or brackish water desalination exist‚ industrial brine treatment may contain unique combinations of dissolved ions‚ such as hardness ions or other metals‚ necessitating specific
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expect and other flaws‚ but rather an aspect of moving forward together as a team having each stakeholder taking part in policy making and implementation. The increased number of employees caused by the increase in the population and the expansion of wastewater company‚ Mr. Harry Smith might not handle the duties alone effectively. Him working alone as a trainer also puts the company that he is heading at risk; suppose he is not feeling well? Suppose he retires from the company or the company fires him
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high quality not only achieve more success at school but also continued to accomplish more after they had left school. (Early Childhood Development‚ 2001). Undoubtedly‚ the role of quality early childhood education plays a vital part in a child’s developing years‚ and we will be discussing three quality indicators relevant to early childhood education and why they are important for children and those in regard to them. The first indicator would be
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family‚ and EPT Index number for each of the three collection sites. The number of organisms and families of macroinvertebrates along with the calculated data can be seen in Table 1. Other sets of data was recorded and compared to test the stream quality at Pricket’s Creek. The water temperatures (°C) were 16.76 ± 2.32 (mean ± St. Dev.) above‚ 15.50 ± 2.47 at‚ and 16.18 ± 2.70 below (Figure 1). The dissolved oxygen content values (ppm) were 6.78 ± 3.03 above‚ 7.88 ± 2.04 at‚ and 8.15 ± 1.54 below
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1.0 Introduction Wastewater refers to any water whose quality has been compromised by human activities. It includes liquid waste discharged from domestic homes‚ agricultural commercial sectors‚ pharmaceutical sectors‚ and hospitals (Fekadu et al.‚ 2015). Hospital wastewater (HWW) can contain hazardous substances‚ such as pharmaceutical residues‚ chemical hazardous substances‚ pathogens‚ and radioisotopes. Due to these substances‚ hospital wastewater can represent a chemical‚ biological‚ and
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Reverse Osmosis For Wastewater Recycling Reusing treated wastewater for beneficial purposes‚ such as agricultural and landscape irrigation‚ industrial processes‚ toilet flushing‚ or groundwater basin replenishment‚ is growing in response to environmental and economic concerns. One of the key factors involved in recycling wastewater treatment plant (WWTP) effluent for another use is the need to reduce total dissolved solids (TDS). This is often done by using a reverse osmosis (RO) system‚ which
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TITTLE: An essay on development indicators describing the following indicators that may be used to explain levels of development within countries: (a). (b). (c). Gross National Product (GNP) Child (Under- five) Mortality Rate Human Development Index (HDI) TABLE OF CONTENTS 1. Introduction 2. Defining Development Indicators 3. Gross National Product 3.1 Advantages of GNP 3.2 Disadvantages of GNP 4. Child (under - Five) Mortality 4.1 Advantages of child (under-five) Mortality 4.2 Disadvantages
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Biological Nanostructures and Applications of Nanostructures in Biology Electrical‚ Mechanical‚ and Optical Properties BIOELECTRIC ENGINEERING Series Editor: Bin He University of Minnesota Minneapolis‚ Minnesota MODELING AND IMAGING OF BIOELECTRICAL ACTIVITY Principles and Applications Edited by Bin He BIOLOGICAL NANOSTRUCTURES AND APPLICATIONS OF NANOSTRUCTURES IN BIOLOGY Electrical‚ Mechanical‚ and Optical Properties Edited by Michael A. Stroscio and Mitra Dutta NEURAL ENGINEERING Edited
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Performance Indicator Memo Executive Summary The aim of Performance Indicator is to increase golf ball manufacturers’ value by increasing revenue from new ball sales as a result of eliminating older‚ used balls through its color change coating technology. Although there appears to be a possible financial benefit based on the future perceived demand for new golf balls‚ PI’s new technology does not appear to have any transparent benefit or value creation for the end consumer (golfer). Consequently
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