organism that grows in water. Algae is an autotroph, meaning it produces its own food, oxygen. The algae which was studied in this experiment was unicellular and dissolved to find the concentration of oxygen produced. In this report sites at Bee Creek were analyzed, based on their canopy coverage, for levels of dissolved oxygen and concentration of chlorophyll a, from which one was able to find the amount of oxygen the algae in the water produced. Methods The study was conducted in Bee Creek, located
Oxygen transfer rate: Oxygen transfer rate from air to the liquid phase in bioreactors with aerobic cultures fermentation has long been a serious damage to the productivity of various bioprocesses. An increase of the oxygen transfer rate (OTR) can be used as basic to overcome oxygen limitation. Higher air pressure on OTR was measured and a significantly enhanced OTR could be obtained. The volumetric oxygen mass transfer coefficient (KLa) is described as a function of the air pressure in a stirred
Lakes are relatively small to large water bodies surrounded by land on all sides sustaining an ecosystem in and around them. Lakes have been an integral part of the ecological system by providing natural abode for plants, animals and microorganisms. Increase in urbanization and industrialization has led to the destruction and in the reduction of lakes in the city of Bangalore, Surviving lakes in Bangalore are reduced to cesspools due to direct discharge of industrial effluents and unregulated dumping
noise of the measurement system. An oxygen electrode was placed into a sealed container along with an aquarium bubbler. Once equilibrium was reached, researchers took the mean of the three highest deviations from a straight line drawn over 10 minutes of output and estimated the background noise. According to our result the background noise was approximately ± 0.0153. Figure 2. A typical experimental run beginning with a baseline and following the dissolved oxygen concentration over 20 minutes. All
7/26/15 Date Performed: 7/24/15 Lab Section: Chem-180 Course Instructor: Professor Lea Stage Purpose The purpose of this experiment is to have the chance to learn about how gases react with certain conditions such as heat, a glowing splint, limewater, and bromothymol blue as well as creating gases by combining different substances and being able to identify the gases produced. Procedure Lab manual
Name: Christen Davis Date: October 6, 2014 Simple Scientific Lab Report Write –up Title: Weathering Virtual Lab Purpose: To explore the effects of the two different kinds of weathering, which are mechanical and chemical Hypothesis: If I run investigate different effects, then I will be able to correctly identify what type of weathering it is that I am observing. Materials used: virtual lab with four different scenes that exhibit either mechanical or chemical weathering Results: Scene
life and enters the water through runoff fertilizer, animal waste, and organic matter decomposing. High nitrate levels can affect the blood’s ability to carry oxygen, which can be dangerous. Water high in nitrate is not considered safe for drinking. Drinkable water would have nitrate levels below 4 ppm. Based on the results of the lab, the nitrate level on the hill was 5 ppm and less than 4 ppm by the dam. This indicates unpolluted water by the dam with low nitrate levels, and most likely less
1. Title: Determination of Vitamin C concentration in water relative to temperature variations. 2. Introduction Vitamin C or in other terms ascorbic acid or ascorbate is a substance which is soluble in water. It is found in a varying concentrations in vegetables and fruits. Vitamin C is a vital nutrient for human constitution, however it cannot be produced by humans on the contrary to animals with few exceptions. So, humans need in certain amounts of Vitamin C in their daily diet. Vitamin C is
parameters in paler reservoir of Khammam district (India). 12 water samples were analyzed on monthly basis in order to assess the variations physicochemical parameters such as pH, water temperature, atmospheric temperature, Dissolved oxygen, electrical conductivity, total dissolved solids, fluorides, nitrates, total hardness, calcium, chlorides, alkalinity and turbidity. Methods used for the measurement of physicochemical parameters were Wrinkler method, Thermometer, Conductivity meter and titratiometery
concentration difference being small. Diffusion is important to the body because the process allows waste to be removed out of the cells and useful molecules to enter the cell. Breathing is one of the many mechanisms that happens because of diffusion. When oxygen is inhaled it goes into the blood and carbon dioxide moves in the blood to the air in the lungs. Diffusion occurs in many different ways inside the body than you could ever imagine.