Vernier Software and Technology
Vernier Software & Technology

Water Treatment

Figure from experiment 6 from Investigating Environmental Science through Inquiry

Introduction

Every community has a method for pre-treating drinking water from a ground or surface water source. Sometimes the term water purification is used for this treatment, but this term incorrectly suggests that the end result of this process will be pure water, with no impurities. A better term to describe this process is water treatment. In order to be assured that water from a well, stream, or lake has enough impurities removed by water treatment to be used as drinking water, it must go through several water treatment steps. These steps may include settling, filtration, or pH adjustment. Far from making the water “pure,” the treatment will in many cases simply reduce some impurities to a level found to be acceptable by government agencies. Some typical EPA (Environmental Protection Agency) standards for drinking water are shown in this table.

Objectives

In the Preliminary Activity, you will gain experience using a Conductivity Probe, a pH Sensor, and a Turbidity Sensor as you determine the total dissolved solids (TDS), the pH, and the turbidity of a water sample provided by your teacher.

After completing the Preliminary Activity, you will first use reference sources to find out more about water treatment before you choose and investigate a researchable question.

Sensors and Equipment

This investigation features the following Vernier sensors and equipment.

Additional Requirements

You may also need an interface and software for data collection. What do I need for data collection?

Standards Correlations

See all standards correlations for Investigating Environmental Science through Inquiry »

Investigating Environmental Science through Inquiry

See other experiments from the lab book.

1Seasons and Angle of Insolation
2A Local Weather Study
3Investigating Dissolved Oxygen
4Water Quality
5Long Term Water Monitoring
6Water Treatment
7Investigating Salinity
8Soil Temperature
9Soil Salinity
10Soil pH
11Soil Moisture
12Soil and Acid Rain
13Managing Garden Soil Moisture
14Cell Respiration (CO2)
15Biodiversity in Ecosystems
16Biochemical Oxygen Demand
17Water Cycle Column Investigations
18Decomposition Column Investigations
19Ecocolumn Investigations
20Global Warming
21UV Investigations
22Comparing Sunscreens
23Primary Productivity
24Modeling Population Growth
25Insulation Study
26Fossil Fuels
27Energy Conversion
28Wind Power
29Photovoltaic Cells
30Investigation of Passive Solar Heating
31The Effect of Acid Deposition on Aquatic Ecosystems
32Measuring Particulates
33Investigating Indoor Carbon Dioxide Concentrations
34A Pollution Study

Investigation 6 from Investigating Environmental Science through Inquiry Lab Book

<em>Investigating Environmental Science through Inquiry</em> book cover

Included in the Lab Book

Vernier lab books include word-processing files of the student instructions, essential teacher information, suggested answers, sample data and graphs, and more.

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