Essential Bacteria Micronutrients
For use as a micronutrient additive to waste waters, soils, sludges and sediments undergoing active biotreatment or bioremediation, to provide necessary trace nutrients for proper microbial cell growth, metabolism and development.
Mechanism of Action
The natural biodegradation process relies upon live microorganisms (bacteria, fungus, algae, molds and yeast) to enzymatically seek out organic waste as a source of "food" and energy and to chemically convert these wastes into new cell mass and non-toxic by-products. Like all living organisms, microbes require certain key nutrients for growth and development.
Microbial cells must generally obtain these vital nutrients directly from their water soil, sludge or sediment environment. However, in many cases, the material undergoing bioremediation is deficient in one or more necessary compounds. This is particularly true for nitrogen, phosphorus, sulfur, iron, calcium, potassium and a variety of trace nutrients. Unless this correct nutritional balance is added to the biotreatment substrate, microbial activity will slow down from lack of vital nourishment. Waste waters or soil sites that remain nutrient deficient for more than a few days can even cause the cell death of the biomass.
BactaClean MicroNutrients is a proprietary blend of the trace inorganic nutrients that actively growing microbes need for good cell development. When added to industrial process waste waters, surface waters, ponds, lagoons, sludges, sediments, bioreactors and in-situ on ex-situ soils undergoing active bioremediation. The environmentally safe components of MicroNutrients provide a source of these vital nutrients for both BactaClean microbial cultures and indigenous biomass. Continued use of MicroNutrients will:
Formulation - A tan powder blend of important micronutrients and other ingredients including calcium, magnesium, sodium and chloride salts, potassium, iron, manganese, molybdenum, zinc, selenium and pH buffers.
Shelf Life - When stored under normal conditions of temperature and humidity, MicroNutrients is stable for a minimum of 5 years. Exposure to humidity may cause some caking.
The use of MicroNutrients in bioremediation projects
All bacteria, whether indigenous or commercially grown, are living cells and have certain nutritional needs for proper growth and development. These include the common elements of carbon, hydrogen, nitrogen, oxygen, phosphorus, potassium, sodium, calcium and magnesium, plus over a dozen trace elements such as iron, sulfur, chlorine, manganese, zinc, nickel, molybdenum, copper, iodine, selenium and cobalt. Bacterial cells also require a host of co-metabolites, growth factors, vitamins and certain key amino acids.
Most remediation contractors understand that treatment environments can be deficient in the major elements. They, therefore, routinely augment their WWT systems and biotreatment soil cleanups with oxygen and commercial nitrogen and phosphate fertilizers. Unfortunately, however, many operators do not measure the other 12 elements that all microbes require. In fact, they routinely neglect the remaining element needs of bacteria, by assuming that all biological treatment environments contain enough trace nutrients.
Soils and in situ aquifers for example, are environments that are frequently deficient in nutrients. Sand for instance, is primarily quartz, calcium, silicon and a few other non-soluble minerals. Likewise, most clays are over 99% pure in one or two minerals only. Gravel, coral rock and volcanic rocks are all also generally insoluble in water. In each case, a few dissolved elements may be present, but expecting the 17 bacterial trace elements and organic growth factors to be present in every soil, in the right proportions to feed an aggressive biomass, is simply impractical. Unless sand, clays and gravel are rich in organic debris (humus), they are actually very poor growth environments for bacteria and simply will not support a large biomass. To force a high level of biological activity in such soils, you must feed the bacteria nutrient supplements and fertilizers. While some commercial fertilizers have a few minerals in addition to N & P, none of them contain all of the compounds bacteria require for complete growth.
Waste water streams are also frequently deficient in trace nutrients. While domestic sewage and meat wastes are reasonably complete foods, most chemical, food and petrochemical waste streams and lagoons are poor nutrient sources for microbial cells. For example, chemical, and refining operations routinely use distilled or purified (RODI) water. With essentially no mineral content, these wastes have no calcium, iron, magnesium, zinc, copper and the dozens of other trace elements bacteria require. Likewise, pulp, paper, textile, brewery, baker, citrus, vegetable and dairy wastes and refinery sludges may start out with trace amounts of some elemental compounds, but will quickly become depleted in them as the biomass tries to consume the large carbon load in these wastes. Once nutrients deplete, a high activity biomass simply cannot be sustained.
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