Posts Tagged ‘S-MART.SE’

Report ENVR206 – Constructed Wetlands

ENVR206B – Constructed Wetlands for Remediation Purposes

Stefan Martensson C03347318
Constructed wetlands are artificially built marshes built to treat human wastewater and stormwater. They have four key components:
• Wastewater
• Soil and drainage materials (such as pipes and gravel)
• Plants (both above and below the water)
• Micro-organisms Read the rest of this entry »

Why YOU should NOT go and vaccinate yourself against H1N1!!

Report – ENVR110 – A Study of the Relationship of Relative Humidity and Temperature

A Study at Camosun College, Lansdowne Campus of the Relationship of Relative Humidity and Temperature

Jenny Kendrick, Geoff Kerr, Stefan Martensson, Kate Musto

ENVR 110, Camosun College

November 20, 2009


Relative humidity is a ratio expressed as a percentage of the moisture in the air to the moisture it would contain if it were saturated at the same temperature and pressure (Oxford Concise Science Dictionary, 2006).  The maximum amount of water vapor that can be contained in the air is dependent on temperature.  A given volume of warm air can hold more water vapor before it precipitates than colder air can. Factors that influence relative humidity include: altitude, cloud cover, pollution, air temperature, regulated temperature in buildings and wind. Read the rest of this entry »

Report – ENVR206B – Phytomining

Over the last 10years the science behind using organic matter to extract natural resources have been developed and tested all over the planet. This technology can be used for extracting metals from the soil for economic profit – phytomining, for ecological/biological profit – phytoremediation or both. Heavy metals, i.e. chromium, arsenic, cadmium, lead, mercury, and manganese are big problems in the environment, but these metals are also expensive. If a way to extract the contaminants, even in small amounts, from the soil at a low cost, one could ‘swat two flies in one go’ by first, and primarily, remediate the heavy metals and later extract the metals from the plants and re-use them. Read the rest of this entry »

Report – CHEM120 – Determination of Water Hardness using EDTA

CHEMESTRY 120-02                                                   2009-11-17

Stefan Martensson C0347318
Lab Partner: Danielle

Procedure: Please refer to handout ‘Experiment #7’ and page 35-38, Chemistry 120 Lab Manual, 2009 Edition, Camosun College. Plus additional handout: Report and Calculation Guide.

Hard water is water that has high mineral content (mainly calcium and magnesium ions). Hard water minerals primarily consist of calcium (Ca2+), and magnesium (Mg2+) cations, and sometimes other dissolved compounds such as bicarbonates and sulfates. Calcium usually enters the water as either calcium carbonate (CaCO3), in the form of limestone and chalk, or calcium sulfate (CaSO4), in the form of other mineral deposits. Hardness in water can cause water to form scales and a resistance to soap. It can also be defined as water that doesn’t produce lather with soap solutions, but produces white precipitate (scum) (Wikipedia, 2009). Read the rest of this entry »

Lease Signed!… Stefan and Cath are going luxurious!!

Greetings Friends!

Yesterday we signed the contract to officially be living together. It’s a marvelous place, luxurious one could even say!

I have stolen a few pics from the Internet to show you what it looks like.

Read the rest of this entry »

Report – ENVR210 – Midterm

Q1. a) (I) Define, then (II) describe how density (sigma-t) in seawater is used to determine water structure and (III) what factors (processes) increase/decrease sigma-t. [5 mks] Read the rest of this entry »

Report – ENVR206B – Alternative Use – Another Glimps from Sweden


Stefan Martensson C0347318                                                              2009-11-03

Background Info:
I have grown to understand that Sweden is in the forefront of the environmental research and its implementation in the real world.

My home town, Helsingborg, was awarded ‘The Most Environmental Municipality in Sweden” this year (out of 290 municipalities). Some of the reasons to the award were: Read the rest of this entry »

Report – ENVR206B – District Heating

SWEDEN – Independent from coal and oil in heating its buildings.

What is District Heating? District heating – as the name implies comes from a central plant which can use advanced methods to run on many different fuels to heat household, schools, industries and other premises. ( Read the rest of this entry »

Report – CHEM120 – Colorimetric Determination of Iron in a Vitamin Tablet using 1,10-Phenanthroline.

CHEMISTRY 120-02                                                                               2009-10-19
Colorimetric Determination of Iron in a
Vitamin Tablet using 1,10-Phenanthroline.

Stefan Martensson C0347318

Partner: Christine Meyer

Theory: To be able to measure the quantity of iron in the tablet we need to firstly assure that all the iron in the solution is in the of Fe2+ and not in Fe3+ due to the ‘blindness’ of this experiment for that ion. This is accomplished by adding Hydroquinone as a reducing agent to ensure that all iron in the solution will be in form of Fe2+.

Furthermore, to be able to view the absorption of the iron we need to enhance its very faint green colour with 1,10-Phenanthroline so it is easier to measure. Unfortunately, 1,10-Phenanthroline is only stable in the pH range of 2 to 9, and to make it stable we need to use Sodium citrate to create a buffered solution with a pH of around 3.5. Read the rest of this entry »