waste water discharges by the industries cause serious pollution. Besides‚ non point sources along with the stretch of the river are also important sources of pollution of these rivers. (IWM‚ 2004) The river Turag running by the side of the Dhaka city‚ the capital of Bangladesh‚ is one of the most polluted rivers in Bangladesh. Many industries have set up in and around the Dhaka city during the last decade‚ and the number of the new industries are continually increasing. The water quality of Turag
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Arsenic Contamination in Drinking Water: Lack of Awareness in Khulna Division Md. Alamgir Hossen Email: auny.du@gmail.com Assignment No # 01 Arsenic Contamination in Drinking Water: Lack of Awareness in Khulna Division Arsenic is treated by World Health Organization as the largest mass poisoning of a population in history in Bangladesh (WHO‚ 2002). Arsenic poisoning through drinking water results pigmentation of skin; enlargement of kidney‚ liver and lungs; failure
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Lab 5 – Weather and Climate Change Lab 5 - Demonstration 1: Modeling the Water Cycle POST LAB QUESTIONS 1. Which water cycle processes are represented in this model and by what components? Answer = Condensation and evaporation are represented in the model. Condensation formed inside the jar and under the lid and the warm water evaporated. 2. Which processes are not represented? How could the model be altered to include these processes? Answer = Precipitation and infiltration did not get represented
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Groundwater Contamination 8 2.1. Natural Sources 8 2.2. Agricultural Activities 8 2.3. Human Activities 9 3. Regulatory‚ Institutional and Policy Framework 13 4. Ways to manage Groundwater 15 4.1. Groundwater Recharge 15 4.2. Recycling and wastewater treatment 16 5. Case Study 19 5.1. Case Study I: Ambuja Cement Limited 19 5.2. Case Study II: Bosch Limited – Safe Drinking Water 21 6. Recommendations 22 7. Way Forward 24 8. Bibliography 26 Executive Summary Water is inextricably
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Fracking is currently regulated by the EPA under the clean water act of 2005 (EPA.gov). However‚ this only partially governs the methods of injecting fluids and the retrieval of such fluids into the earth. It does not govern the types of chemicals that are being allowed to be used‚ or how much fresh water is wasted (millions of gallons per “Frack job”) and it does not carry stiff enough penalties for spills or irreversible damage to community’s water supplies. For those of you‚ who are unfamiliar with
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The intention of the “Foul Water” lab was to purify a sample of sewage water and conserve as much as possible. The water should be clean enough to wash your hands with. My hypothesis is that the water will be cleaner than the initial water sample‚ but not to the standard that I would wash my hands with. Significant terms to know include purification‚ filtration‚ adsorption‚ volume‚ clarity‚ dissolved‚ filtrate‚ impurities‚ pipette‚ clay triangle‚ funnel cone‚ iron ring‚ beaker‚ and Erlenmeyer flask
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Hand Washing Experiment Outline I. Introduction a. This lab was conducted in order to understand and apply the scientific method. The experiment tested the effectiveness of reducing microorganism (bacteria) with the use of various hand soaps. b. Hypothesis: If the Harris Teeter Foaming Hand Soap is more effective in reducing bacterial growth than the Soft Soap hand soap‚ then there will be less bacterial/microorganism growth present on the agar plate for the Harris Teeter Foaming
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Kaileah Diaz November 10‚2017 Period: 3 Weathering Lab Report Water erosion is usually caused by rainfall and runoff on a slope‚ and the magnitude of water erosion depends on the type of soil. This can occur on river banks‚ seashores‚ streams‚ or even seaside cliffs. Muddy water is also a sign of erosion. There are brown hue results from the suspension of rock and soil particles inside the water. Water erosion usually happens in the springtime because there is usually a lot more rainfall and
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Steel Wool Scissors Ruler Lemon Juice Orange Juice Vinegar Distilled Water Four Small Bowls Thin Towel Tall plastic cup Graph Paper Procedure: Before beginning your experiment‚ make sure that the distilled water has been opened and exposed to the air for at least a few hours. This will allow it to absorb some carbon dioxide from the atmosphere and lower its pH from a level of about 7 to about 5.8. The distilled water will act as a model for "normal" rainwater‚ which has a pH of about
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purpose of this lab was to practice measuring the mass and volume of different samples and to calculate the density and specific gravity of those samples using the measurements. B. Equipment 1. Electronic balance- The electronic balance is a device used to measure the exact mass of an object 2. Graduated cylinder- The graduated cylinder is a tool used to measure the volume of a liquid 3. Pipets- Pipets are small tubes that suck up and contain liquids C. Technique 1. The water displacement technique
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