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(dissimilatory nitrate reduction) The use of nitrate as a terminal electron acceptor for ANAEROBIC RESPIRATION. This process occurs under ANAEROBIC or MICROAEROPHILIC conditions. Not all bacteria are capable of this form of metabolism and the nitrate may not be reduced completely to nitrogen gas (stopping at nitrite, for example). When …

The breakdown of organic matter to inorganic materials (such as carbon dioxide and water) by bacteria and fungi. SOURCE: Bioremediation and Phytoremediation Glossary

Bacteria that anaerobicly oxidize hydrogen to methane and water using carbon dioxide as the electron acceptor. These occur in anaerobic muds, ponds, and sewage sludge. SOURCE: Bioremediation and Phytoremediation Glossary

A complex polymer that occurs in woody material of higher plants. It is highly resistant to chemical and enzymatic degradation. The WHITE ROT FUNGI are known for their lignin degrading capability. SOURCE: Bioremediation and Phytoremediation Glossary

In place, without excavation. SOURCE: Bioremediation and Phytoremediation Glossary

Out of the original position (Excavated). SOURCE: Bioremediation and Phytoremediation Glossary

Culture in a liquid medium that results in the increase of the population of an organism relative to others. The liquid culture frequently contains substances that encourage the growth of the selected organism (Such as the chemical pollutant and mineral nutrients.) SOURCE: Bioremediation and Phytoremediation Glossary

Enhanced biodegradation of contaminants near plant roots where compounds exuded by the roots increase microbial biodegradation activity. Other plant processes such as water uptake by the plant roots can enhance biodegradation by drawing contaminants to the root zone. SOURCE: Bioremediation and Phytoremediation Glossary

It can sometimes be used to remove nitrate or nitrite from liquid wastes. SOURCE: Bioremediation and Phytoremediation Glossary

The biodegradation of a pollutant by an organism while using some other compound(s) for growth and energy. There is little or no benefit to the biodegrading organism, the pollutant just happens to be affected by the growth of the cometabolizing organism. SOURCE: Bioremediation and Phytoremediation Glossary