Algal biomass

Figure 4.3 Tubular-loop reactor for the production of algal biomass...

Sabater S, Armengol J, Sabater F et al (2000) Algal biomass in a disturbed Atlantic river water quality relationships and environmental implications. Sci Total environ 263 185-195... 

Peech Cherewyk 2002 Tsui and Wang 2004). Phytoplankton have a constrained trophic position are not consumed by fish, wildlife, or humans, and are indirectly relevant to the pnbhc or the policy commnnity. They wonld respond veiy rapidly — within minntes or honrs — to changes in MeHg concentrations in water. Phytoplankton obtain MeHg directly from water (Mason et al. 1996), and algal density can inlinence concentrations of MeHg in phytoplankton via biomass dilntion (Pickhardt et al. 2002). 

Algal densities and biomass reduced, diversity decreased, and species composition altered. Within 16 days after removal of atrazine stress, net productivity was indistinguishable from controls, but community structure remained altered at day 21 (Hamala and Kollig 1985)... 

There have been some indications that ion-exchange plays an important role in metal sorption by algal biomass. Although numerous papers on the metal-microorganism interactions are available in the literature, still large uncertainties exist. Biosorbents are complex and variable materials. The composition of cell wall, to which metal ions are bound, depends not only on biosorbent species, but also on environmental conditions of its growth. 

In principle, the alkalinity of the water will also be affected by the balance of nutrient ions consumed and released by organisms in the water. But in practice these have a minor affect compared with CO2. The average composition of the algal biomass in natural waters is given by the Redfield formula (Redfield, 1934) as C106H263O110N16P. Therefore for the complete stoichiometry of algal photosynthesis and respiration, we have with NO3 as the source of N... 

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