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Your search for “"wastewater lab"” gave approximately 31 results:

Download: WW Lab Course 01 Introduction to the Laboratory

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The Virtual Front Porch
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19th November 2016

Accurate and reliable testing of raw, process and treated wastewater is fundamental to the efficient operation of a wastewater treatment facility.

As with many other types of industries, some form of process monitoring is required for wastewater treatment plants to ensure that the quality of the final product is maintained at the highest possible level. One of the methods used in the wastewater treatment industry to maintain a high quality effluent is…

Download: WW Lab Course 02 Solids

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The Virtual Front Porch
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19th November 2016

The Pennsylvania Department of Environmental Protection (DEP), in conjunction with the Virginia Department of Environmental Protection, in an effort to provide the plant operator with the basic knowledge and skills needed to perform the required laboratory testing, has developed a basic wastewater testing training course.

The term “solids” is generally used when referring to any material suspended or dissolved in wastewater that can be physically isola…

Download: WW Lab Course 03 pH

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The Virtual Front Porch
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19th November 2016

The Pennsylvania Department of Environmental Protection (DEP), in conjunction with the Virginia Department of Environmental Protection, in an effort to provide the plant operator with the basic knowledge and skills needed to perform the required laboratory testing, has developed a basic wastewater testing training course.

pH is a mathematical expression of the intensity of the acid or alkaline condition of a sample. The term “pH” is defined as the nega…

Download: WW Lab Course 04 Dissolved Oxygen Measurement

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The Virtual Front Porch
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19th November 2016

The Pennsylvania Department of Environmental Protection (DEP), in conjunction with the Virginia Department of Environmental Protection, in an effort to provide the plant operator with the basic knowledge and skills needed to perform the required laboratory testing, has developed a basic wastewater testing training course.

The DO determination measures the amount of dissolved (or free) oxygen present in water or wastewater. Aerobic bacteria and aquatic…

Download: WW Lab Course 05 Biochemical Oxygen Demand (BOD)

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The Virtual Front Porch
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20th November 2016

In the presence of free oxygen, aerobic bacteria use the organic matter found in wastewater as “food”. The BOD test is an estimate of the “food” available in the sample. The more “food” present in the waste, the more Dissolved Oxygen (DO) will be required. The BOD test measures the strength of the wastewater by measuring the amount of oxygen used by the bacteria as they stabilize the organic matter under controlled conditions of time and temperature.

T…

Download: WW Lab Course 06 Chlorine Residual Determination

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The Virtual Front Porch
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20th November 2016

The main purpose for the chlorination of water supplies and wastewater treatment plant effluents is the destruction of disease‑producing microorganisms. Chlorine has a variety of other uses in the wastewater treatment plant operation including odor control and fly and ponding control (in trickling filters). Chlorine can also provide additional wastewater treatment by reacting with ammonia, iron, manganese, sulfide and some organic substances.

Unfortu…

Download: WW Lab Course 07 Fecal Coliform

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The Virtual Front Porch
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20th November 2016

Fecal coliform bacteria are non‑disease causing organisms which are found in the intestinal tract of all warm‑blooded animals. Each discharge of body wastes contains large amounts of these organisms. The presence of fecal coliform bacteria in a stream or lake indicates the presence of human or animal wastes. The number of fecal coliform bacteria present is a good indicator of the amount of pollution present in the water.

The Pennsylvania Department…

Download: WW Lab Course 08 Total Phosphorus

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The Virtual Front Porch
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20th November 2016

Wastewater is relatively rich in phosphorus compounds. Phosphorus is a nutrient used by organisms for growth. It occurs in natural water and wastewater bound to oxygen to form phosphates. Phosphates come from a variety of sources including agricultural fertilizers, domestic wastewater, detergents, industrial process wastes and geological formations.

The discharge of wastewater containing phosphorus may cause algae growth in quantities sufficient to cau…

Download: WW Lab Course 09 Nitrogen

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The Virtual Front Porch
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20th November 2016

Nitrogen compounds are of interest to wastewater treatment plant operators because of the importance of nitrogen in the life cycles of plants and animals. Nitrogen is a nutrient and occurs in many forms including ammonia, organic, nitrate and nitrite each of which may be tested for in a variety of ways. Raw wastewater nitrogen is normally present in the organic nitrogen and ammonia forms, with small quantities of the nitrite and nitrate forms. Depending…

Download: WW Lab Course 10 Quality Control

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The Virtual Front Porch
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20th November 2016

To obtain meaningful data on water quality, the laboratory must first collect a representative sample and deliver it unchanged for analysis. The analyst must then perform the analysis correctly using the proper method. Finally, the results of the analyses must be recorded accurately and permanently for future use. The entire process must be carried out in a consistent, deliberate manner according to an overall plan established by laboratory personnel. I…

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