By Kenneth M. Vigil
This consultant for college kids, water pros, and anxious electorate offers an creation to water caliber and water toxins keep an eye on. Environmental engineer Vigil describes the elemental medical rules in the back of water toxins keep an eye on and explains the wider method of watershed administration. He additionally indicates methods for electorate to use what they've got discovered approximately fresh water at domestic and locally. the 1st variation was once released via Columbia Cascade Publishing in 1996 below the identify fresh Water: The Citizen's entire consultant to Water caliber and Water toxins keep an eye on.
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Extra info for Clean Water: An Introduction to Water Quality and Water Pollution Control
Smith, 2002. Third Century of Biochemical Oxygen Demand. Water Environment Federation, Alexandria, Virginia. , 2002. Water Chemistry. McGraw-Hill, New York, New York. , 1994. Wastewater Microbiology. , New York, New York. Gaudy, A. , and E. T. Gaudy, 1980. Microbiology for Environmental Scientists and Engineers. , New York, New York. Hem, J. , 1992. Study and Interpretation of the Chemical Characteristics of Natural Water, Third Edition. United States Geologic Survey Water-Supply Paper 2254. J.
This dechlorination process is often accomplished by injecting sulfur dioxide gas into the effluent. The sulfur dioxide gas reacts with the chlorine molecules, converting them into nontoxic chloride molecules. Using other nontoxic methods to disinfect the wastewater, such as passing the effluent through ultraviolet light or adding ozone, can also prevent chlorine toxicity. Chlorine is also used in the process of bleaching pulp to make paper white. During the bleaching process, chlorine molecules combine with organic molecules in the pulp to form harmful compounds called chlorinated organics.
When phosphorus is not available, organisms will not grow. For example, one of the reasons high mountain waters are so clear is that they lack enough phosphorus to support the growth of many aquatic organisms. When the absence of phosphorus or any other element limits biological growth, it is called the limiting nutrient. Having too many organisms growing in our waters is generally undesirable. An abundance of aquatic organisms such as algae growing in a water body may cause it to turn green and turbid.
Clean Water: An Introduction to Water Quality and Water Pollution Control by Kenneth M. Vigil