2 edition of Survival and activity of sewage microorganisms in acid mine water found in the catalog.
Survival and activity of sewage microorganisms in acid mine water
Raymond C. Kralovic
by Water Research Institute, West Virginia University in Morgantown
Written in English
Bibliography: p. 29-30.
|Statement||by Raymond C. Kralovic and H. A. Wilson.|
|Series||[West Virginia. University. West Virginia University bulletin] ser. 69, no. 12-3|
|Contributions||Wilson, Harold Albert, 1905- joint author.|
|LC Classifications||QR48 .K73|
|The Physical Object|
|Number of Pages||30|
|LC Control Number||72629674|
Acid mine drainage, acid and metalliferous drainage, or acid rock drainage is the outflow of acidic water from metal mines or coal mines. Acid rock drainage occurs naturally within some environments as part of the rock weathering process but is exacerbated by large-scale earth disturbances characteristic of mining and other large construction activities, usually within rocks containing an abundance of sulfide . The sewage is an ideal environment for growth microorganisms like protozoa, algae, fungi, yeasts, bacteria and viruses. Bacteria from sewage are pathogenic, nonpathogenic, saprophytes, autotrophic, heterotrophic, facultative, obligate, aerobic or anaerobic forms. The millions of bacteria have been enumerated in per milliliter of diluted sewage sample.
SEWAGE MICROBIOLOGY Microbes play an extremely important role in sewage treatment. It is largely through biological digestion that sewage is converted from a highly contaminated, infectious liquid into a relatively stable, inert sludge and a harmless effluent needing only chlorination before it may be discharged into a receiving stream, leaching bed, or other disposal area. Start studying MICRO5. Learn vocabulary, terms, and more with flashcards, games, and other study tools. Search. Browse. Acid mine drainage is propagated by the bacterium a. Thiobacillus ferrooxidans b. Microorganisms in water can utilize oxygen faster than it can be redissolved if enough nutrients are available. t.
Role of Microorganisms in Wastewater Treatment The stabilization of organic matter is accomplished biologically using a variety of microorganisms Carbonaceous organic matter Gases + cell tissue Colloidal & dissolved form Specific gravity of the cell tissue ≥specific gravity of water ; Cell tissue removed by gravity settlingFile Size: KB. Microorganisms found in sewage originate from two sources--soil and sanitary waste. One milliliter of sewage typically contains between , and 1 million microorganisms, according to the Mountain Empire Community College website. While most of these organisms, such as various types of bacteria, play a pivotal role.
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Survival and activity of sewage microorganisms in acid mine water Item Preview remove-circle Survival and activity of sewage microorganisms in acid mine water by Kralovic, Raymond C. Publication date Topics Sewage - Microbiology. Publisher West Virginia University. Agricultural Experiment Station.
The paper deals with the nature of mine drainage in the North Eastern Coalfield, Margarita, Assam (India). The drainages from the Margerita group of mines are found to be acidic with high sulphate ranging up to ppm and iron content rising up to 40 ppm.
The total sulphur in coals is up to 7% out of which 50–80% is non-reactive organically found by: 8. (pH~3) wastewater is laden with toxic heavy metals (Gibert et al.
One method used to treat acid mine drainage is to divert water through wetlands. In wetlands, increasing pH and alkalinity influences heavy metal concentrations, while microbial and plant activity mineralizes contaminants to form precipitates.
Different approaches can beFile Size: KB. Compared to physicochemical techniques, the bioremediation of manganese mine drainage without the addition of chemical reagents is relatively inexpensive.
However, wastewater from manganese mines is acidic and has low-levels of dissolved oxygen, which inhibit the oxidizing ability of by: 1.
Acid mine drainage (AMD) usually refers to the acid wastewater formed by the scouring of abandoned mining areas (Méndez-García et al., ). AMD is mainly caused by the oxidation of sulfate metals (e.g., mineral pyrite) when the mineral sources are exposed to water, air, and microbial activity Author: Rui Xu, Baoqin Li, Enzong Xiao, Lily Y.
Young, Xiaoxu Sun, Tianle Kong, Yiran Dong, Qi Wang, Zhaohui. Bioremediation of Acid Mine Drainage Using Sulfate-Reducing Bacteria. It also involves the chemical reaction of metal (Me) precipitation: H2S + Me.
+2 → MeS + 2H+. Cadmium, copper, iron, lead, mercury, nickel, and zinc are some of the metals that will precipitate as metal sulfides. While these waters are major causes of environmental pollution and are toxic to the majority of prokaryotic and eukaryotic organisms, some life forms (mostly bacteria and archaea) thrive within them.
“Acidophiles” comprise a surprisingly wide diversity (in terms of both physiology and phylogeny) of by: Insufficient potable water resources and poorly treated drinking water quality are the world's number one cause for preventable morbidity and mortality from water-related pathogenic microorganisms.
Water Quality and Acid Mine Drainage: Pre-mine Predictions and Post-mine pre-development activities for industrial projects. This report was commissioned to Acid Mine Drainage Overview Acid rock drainage (ARD) is produced by the oxidation of sulfide minerals, chiefly iron pyrite or iron disulfide (FeS2).
This is a natural chemical File Size: KB. The wastewater treatment process is a biological process, therefore in order to properly evaluate this process you need to use biological tools The Tool: Microscope The human eye is not capable of distinguishing objects with a diameter less than mm.
Bacteria have a diameter of approximately mm. In order to view their. MICROBIOLOGY OF SEWAGE AND SEWAGE TREATMENT Pro. Tahir 12/2/ MCB - ENVIRONMENTAL MICROBIOLOGY 1 2. Sewage or Wastewater Treatment • Introduction Sewage is waste matter carried in sewers or drains. It is a “mixture of water and solids separated from various types of water as a result of natural or artificial processes”.
Mine Water Process Wastewater Domestic Wastewater oxygen and water and in the presence of bacteria forms sulfuric acid and lowers the pH. A pH of below may be corrosive to plumbing I - Wastewater Characteristics, Management and Reuse in.
Obligately acidophilic, heterotrophic bacteria were isolated both from enrichment cultures developed with acidic mine water and from natural mine drainage. The bacteria were grouped by the ability to utilize a number of organic acids as sole carbon by: The formation of acid mine drainage (AMD), a highly acidic and metal-rich solution, is the biggest environmental concern associated with coal and mineral mining.
Once produced, AMD can severely impact the surrounding ecosystem due to its acidity, metal toxicity, sedimentation and other deleterious by: Abstract. The dissolution of sulfide minerals such as pyrite (FeS 2), arsenopyrite (FeAsS), chalcopyrite (CuFeS 2), sphalerite (ZnS), and marcasite (FeS 2) yields hot, sulfuric acid-rich solutions that contain high concentrations of toxic locations where access of oxidants to sulfide mineral surfaces is increased by mining, the resulting acid mine drainage (AMD) may contaminate Cited by: THE MICROBIOLOGY OF ACID MINE DRAINAGE By Jim Taylor, P.G.
January Acid mine drainage is a common problem in many parts of the country, originating from hardrock mines, strip mines or tailing piles. Most discussions on acid mine drainage refer to the physical process of oxidation while the role of microorganisms is left Size: 1MB.
Modern Environmental Microbiology 6 Purpose and Organization of This Text 7 2. Microorganisms Acid Mine Drainage Questions and Problems References Part III Detection, Enumeration, and Detection of Bacteria Processing Water Samples for Detection of Protozoan Parasites File Size: KB.
The role of microorganisms in the oxidation of iron in acid mine drainage. That the presence of air is not the sole criterion of whether the water's ferrous sulfate will change to ferric sulfate will be seen from the following simple experiments.
Composition of Sewage 3. Classification 4. Characteristics 5. Disposal 6. Treatment. Meaning of Sewage: ‘Sewage’ is a collective noun used to represent liquid or solid wastes carried in sewers.
It consists of domestic water-borne wastes including human and animal excrete, washing waters and everything that goes down the drains of a town or. Acid Mine Drainage. 1: Define Acid Mine Drainage and explain how it occurs: Acid Mine Drainage is water with a high concentration of sulfuric acid that drains from mines.
This is made when pyrite mined from coal rocks is dissolved in Size: KB. Ferrous iron chemical oxidation rate is negligible below pH 4, thus the activities of acidophilic iron-oxidizing bacteria play a crucial role in acid mine drainage generation (Hallberg, ).
Sulfide oxidation and acid production in mining waste can be hindered by acid consuming processes in varying degrees, depending on the availability of acid consuming by: The purpose of this study was to isolate and characterise toxic element-resistant bacteria from acid mine drainage water and to apply them in the bioremediation of industrial effluent, as well as.The major sources of acid deposition are industrial plants that burn coal and release sulfur dioxide and nitrogen dioxide into the atmosphere where they are converted into sulfuric acid and nitric acid.
The major source of acid mine drainage is abandoned mines that contain pyrite rocks.