·DISSOLVED OXYGEN SATURATION Dissolved oxygen saturation varies throughout the day and night When there is more oxygen consumption by animals plants and bacteria than oxygen production by plants and mixing from the atmosphere oxygen saturation values naturally go down The oxygen is being consumed by animals plants and bacteria
·As a result a higher saturated concentration of dissolved oxygen can be achieved due to the oxygen molecules are inclined to occupy the spaces among water clusters Simulations of Oxygen in Relation to Water Clusters Positions In response to the above assumption simulations of the positional relationship states among oxygen molecules and
The dissolved oxygen concentration is another relevant factor influencing the performance of microalgae cells The concentration of dissolved oxygen in equilibrium with air is determined by the temperature and ionic strength of the culture medium ranging from 8 to 9 mg/L at ambient conditions for freshwater and seawater respectively However during photosynthesis oxygen
Dissolved oxygen is typically measured and reported as concentrations using either mg DO/L of water mg/L or percent saturation as the units Percent saturation refers to the amount of DO percentage dissolved in the water relative to the total amount possible
·Accurate data for the concentration of dissolved oxygen in surface and ground waters are essential for documenting changes in environmental water resources that result from natural phenomena and human activities Dissolved oxygen is necessary in aquatic systems for the survival and growth of many aquatic organisms and is used as an indicator of
·In situ fragmentation bioleaching is a promising way to perform deep mining safely economically and in an environmentally friendly manner where oxygen plays a critical role in microbial growth and mineral dissolution However the lack of oxygen limits the implementation of in situ fragmentation bioleaching To overcome this limitation aeration was proposed with
·As temperature and salinity increase dissolved oxygen saturation decreases while increases in atmospheric pressure increase saturation concentration Additionally photosynthesis by primary producers can increase surface water concentration to supersaturation levels while aerobic respiration processes can decrease it to hypoxic levels at depth
·Dissolved oxygen DO concentration is regarded as one of the crucial factors to influence partial nitrification process However achieving and keeping stable partial nitrification under different DO concentrations were widely reported Oxygen half saturation constant for AOB K O2 AOB and NOB K O2 NOB were evaluated by batch tests for
·DO salt The dissolved oxygen concentration mg/L of air saturated salt water DO The dissolved oxygen concentration in mg/L of air saturated distilled water S The salinity value ppt of the sample K The constant which varies according to the sample temperature and can be determined using salinity correction constant values
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